Lines Matching +full:multiply +full:- +full:accumulate
1 // SPDX-License-Identifier: GPL-2.0-only
3 * Kernel-based Virtual Machine driver for Linux
16 * Ben-Ami Yassour <benami@il.ibm.com>
48 #include <linux/user-return-notifier.h>
62 #include <linux/entry-kvm.h>
109 ((struct kvm_vcpu *)(ctxt)->vcpu)
112 * - enable syscall per default because its emulated by KVM
113 * - enable LME and LMA per default on 64 bit KVM
144 *(((struct kvm_x86_ops *)0)->func));
147 #include <asm/kvm-x86-ops.h>
164 /* tsc tolerance in parts per million - default to 1/2 of the NTP threshold */
176 * Flags to manipulate forced emulation behavior (any non-zero value will
183 int __read_mostly pi_inject_timer = -1;
443 * List of MSRs that control the existence of MSR-based features, i.e. MSRs
456 (KVM_LAST_EMULATED_VMX_MSR - KVM_FIRST_EMULATED_VMX_MSR + 1)];
548 size - useroffset, NULL); in kvm_alloc_emulator_cache()
557 vcpu->arch.apf.gfns[i] = ~0; in kvm_async_pf_hash_reset()
573 if (msrs->registered) { in kvm_on_user_return()
574 msrs->registered = false; in kvm_on_user_return()
579 values = &msrs->values[slot]; in kvm_on_user_return()
580 if (values->host != values->curr) { in kvm_on_user_return()
581 wrmsrl(kvm_uret_msrs_list[slot], values->host); in kvm_on_user_return()
582 values->curr = values->host; in kvm_on_user_return()
607 return -1; in kvm_add_user_return_msr()
622 return -1; in kvm_find_user_return_msr()
634 msrs->values[i].host = value; in kvm_user_return_msr_cpu_online()
635 msrs->values[i].curr = value; in kvm_user_return_msr_cpu_online()
644 value = (value & mask) | (msrs->values[slot].host & ~mask); in kvm_set_user_return_msr()
645 if (value == msrs->values[slot].curr) in kvm_set_user_return_msr()
651 msrs->values[slot].curr = value; in kvm_set_user_return_msr()
652 if (!msrs->registered) { in kvm_set_user_return_msr()
653 msrs->urn.on_user_return = kvm_on_user_return; in kvm_set_user_return_msr()
654 user_return_notifier_register(&msrs->urn); in kvm_set_user_return_msr()
655 msrs->registered = true; in kvm_set_user_return_msr()
665 if (msrs->registered) in drop_user_return_notifiers()
666 kvm_on_user_return(&msrs->urn); in drop_user_return_notifiers()
720 * #DBs can be trap-like or fault-like, the caller must check other CPU in exception_type()
739 if (!ex->has_payload) in kvm_deliver_exception_payload()
742 switch (ex->vector) { in kvm_deliver_exception_payload()
745 * "Certain debug exceptions may clear bit 0-3. The in kvm_deliver_exception_payload()
749 vcpu->arch.dr6 &= ~DR_TRAP_BITS; in kvm_deliver_exception_payload()
758 * Active low bits should be cleared if 1-setting in payload. in kvm_deliver_exception_payload()
759 * Active high bits should be set if 1-setting in payload. in kvm_deliver_exception_payload()
766 vcpu->arch.dr6 |= DR6_ACTIVE_LOW; in kvm_deliver_exception_payload()
767 vcpu->arch.dr6 |= ex->payload; in kvm_deliver_exception_payload()
768 vcpu->arch.dr6 ^= ex->payload & DR6_ACTIVE_LOW; in kvm_deliver_exception_payload()
776 vcpu->arch.dr6 &= ~BIT(12); in kvm_deliver_exception_payload()
779 vcpu->arch.cr2 = ex->payload; in kvm_deliver_exception_payload()
783 ex->has_payload = false; in kvm_deliver_exception_payload()
784 ex->payload = 0; in kvm_deliver_exception_payload()
792 struct kvm_queued_exception *ex = &vcpu->arch.exception_vmexit; in kvm_queue_exception_vmexit()
794 ex->vector = vector; in kvm_queue_exception_vmexit()
795 ex->injected = false; in kvm_queue_exception_vmexit()
796 ex->pending = true; in kvm_queue_exception_vmexit()
797 ex->has_error_code = has_error_code; in kvm_queue_exception_vmexit()
798 ex->error_code = error_code; in kvm_queue_exception_vmexit()
799 ex->has_payload = has_payload; in kvm_queue_exception_vmexit()
800 ex->payload = payload; in kvm_queue_exception_vmexit()
813 * If the exception is destined for L2, morph it to a VM-Exit if L1 in kvm_multiple_exception()
817 kvm_x86_ops.nested_ops->is_exception_vmexit(vcpu, nr, error_code)) { in kvm_multiple_exception()
823 if (!vcpu->arch.exception.pending && !vcpu->arch.exception.injected) { in kvm_multiple_exception()
825 vcpu->arch.exception.pending = true; in kvm_multiple_exception()
826 vcpu->arch.exception.injected = false; in kvm_multiple_exception()
828 vcpu->arch.exception.has_error_code = has_error; in kvm_multiple_exception()
829 vcpu->arch.exception.vector = nr; in kvm_multiple_exception()
830 vcpu->arch.exception.error_code = error_code; in kvm_multiple_exception()
831 vcpu->arch.exception.has_payload = has_payload; in kvm_multiple_exception()
832 vcpu->arch.exception.payload = payload; in kvm_multiple_exception()
835 &vcpu->arch.exception); in kvm_multiple_exception()
840 prev_nr = vcpu->arch.exception.vector; in kvm_multiple_exception()
842 /* triple fault -> shutdown */ in kvm_multiple_exception()
854 vcpu->arch.exception.injected = false; in kvm_multiple_exception()
855 vcpu->arch.exception.pending = false; in kvm_multiple_exception()
860 that instruction re-execution will regenerate lost in kvm_multiple_exception()
891 * On VM-Entry, an exception can be pending if and only if event in kvm_requeue_exception()
901 * re-checking is incorrect if _L1_ injected the exception, in which in kvm_requeue_exception()
906 vcpu->arch.exception.injected = true; in kvm_requeue_exception()
907 vcpu->arch.exception.has_error_code = has_error_code; in kvm_requeue_exception()
908 vcpu->arch.exception.vector = nr; in kvm_requeue_exception()
909 vcpu->arch.exception.error_code = error_code; in kvm_requeue_exception()
910 vcpu->arch.exception.has_payload = false; in kvm_requeue_exception()
911 vcpu->arch.exception.payload = 0; in kvm_requeue_exception()
939 ++vcpu->stat.pf_guest; in kvm_inject_page_fault()
942 * Async #PF in L2 is always forwarded to L1 as a VM-Exit regardless of in kvm_inject_page_fault()
945 if (is_guest_mode(vcpu) && fault->async_page_fault) in kvm_inject_page_fault()
947 true, fault->error_code, in kvm_inject_page_fault()
948 true, fault->address); in kvm_inject_page_fault()
950 kvm_queue_exception_e_p(vcpu, PF_VECTOR, fault->error_code, in kvm_inject_page_fault()
951 fault->address); in kvm_inject_page_fault()
958 WARN_ON_ONCE(fault->vector != PF_VECTOR); in kvm_inject_emulated_page_fault()
960 fault_mmu = fault->nested_page_fault ? vcpu->arch.mmu : in kvm_inject_emulated_page_fault()
961 vcpu->arch.walk_mmu; in kvm_inject_emulated_page_fault()
967 if ((fault->error_code & PFERR_PRESENT_MASK) && in kvm_inject_emulated_page_fault()
968 !(fault->error_code & PFERR_RSVD_MASK)) in kvm_inject_emulated_page_fault()
969 kvm_mmu_invalidate_addr(vcpu, fault_mmu, fault->address, in kvm_inject_emulated_page_fault()
972 fault_mmu->inject_page_fault(vcpu, fault); in kvm_inject_emulated_page_fault()
978 atomic_inc(&vcpu->arch.nmi_queued); in kvm_inject_nmi()
1012 return vcpu->arch.reserved_gpa_bits | rsvd_bits(5, 8) | rsvd_bits(1, 2); in pdptr_rsvd_bits()
1020 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in load_pdptrs()
1025 u64 pdpte[ARRAY_SIZE(mmu->pdptrs)]; in load_pdptrs()
1053 if (!tdp_enabled && memcmp(mmu->pdptrs, pdpte, sizeof(mmu->pdptrs))) in load_pdptrs()
1054 kvm_mmu_free_roots(vcpu->kvm, mmu, KVM_MMU_ROOT_CURRENT); in load_pdptrs()
1056 memcpy(mmu->pdptrs, pdpte, sizeof(mmu->pdptrs)); in load_pdptrs()
1059 vcpu->arch.pdptrs_from_userspace = false; in load_pdptrs()
1084 * CR0.WP is incorporated into the MMU role, but only for non-nested, in kvm_post_set_cr0()
1131 if ((vcpu->arch.efer & EFER_LME) && !is_paging(vcpu) && in kvm_set_cr0()
1142 if (!(vcpu->arch.efer & EFER_LME) && (cr0 & X86_CR0_PG) && in kvm_set_cr0()
1167 if (vcpu->arch.guest_state_protected) in kvm_load_guest_xsave_state()
1172 if (vcpu->arch.xcr0 != kvm_host.xcr0) in kvm_load_guest_xsave_state()
1173 xsetbv(XCR_XFEATURE_ENABLED_MASK, vcpu->arch.xcr0); in kvm_load_guest_xsave_state()
1176 vcpu->arch.ia32_xss != kvm_host.xss) in kvm_load_guest_xsave_state()
1177 wrmsrl(MSR_IA32_XSS, vcpu->arch.ia32_xss); in kvm_load_guest_xsave_state()
1181 vcpu->arch.pkru != vcpu->arch.host_pkru && in kvm_load_guest_xsave_state()
1182 ((vcpu->arch.xcr0 & XFEATURE_MASK_PKRU) || in kvm_load_guest_xsave_state()
1184 wrpkru(vcpu->arch.pkru); in kvm_load_guest_xsave_state()
1190 if (vcpu->arch.guest_state_protected) in kvm_load_host_xsave_state()
1194 ((vcpu->arch.xcr0 & XFEATURE_MASK_PKRU) || in kvm_load_host_xsave_state()
1196 vcpu->arch.pkru = rdpkru(); in kvm_load_host_xsave_state()
1197 if (vcpu->arch.pkru != vcpu->arch.host_pkru) in kvm_load_host_xsave_state()
1198 wrpkru(vcpu->arch.host_pkru); in kvm_load_host_xsave_state()
1203 if (vcpu->arch.xcr0 != kvm_host.xcr0) in kvm_load_host_xsave_state()
1207 vcpu->arch.ia32_xss != kvm_host.xss) in kvm_load_host_xsave_state()
1217 return vcpu->arch.guest_supported_xcr0 & XFEATURE_MASK_USER_DYNAMIC; in kvm_guest_supported_xfd()
1224 u64 old_xcr0 = vcpu->arch.xcr0; in __kvm_set_xcr()
1240 valid_bits = vcpu->arch.guest_supported_xcr0 | XFEATURE_MASK_FP; in __kvm_set_xcr()
1259 vcpu->arch.xcr0 = xcr0; in __kvm_set_xcr()
1262 vcpu->arch.cpuid_dynamic_bits_dirty = true; in __kvm_set_xcr()
1291 * If CR4.PCIDE is changed 0 -> 1, there is no need to flush the TLB in kvm_post_set_cr4()
1305 * - CR4.PCIDE is changed from 1 to 0 in kvm_post_set_cr4()
1306 * - CR4.PGE is toggled in kvm_post_set_cr4()
1317 * - CR4.SMEP is changed from 0 to 1 in kvm_post_set_cr4()
1318 * - CR4.PAE is toggled in kvm_post_set_cr4()
1360 struct kvm_mmu *mmu = vcpu->arch.mmu; in kvm_invalidate_pcid()
1395 if (kvm_get_pcid(vcpu, mmu->prev_roots[i].pgd) == pcid) in kvm_invalidate_pcid()
1398 kvm_mmu_free_roots(vcpu->kvm, mmu, roots_to_free); in kvm_invalidate_pcid()
1431 vcpu->arch.cr3 = cr3; in kvm_set_cr3()
1440 * and it's impossible to use a non-zero PCID when PCID is disabled, in kvm_set_cr3()
1457 vcpu->arch.cr8 = cr8; in kvm_set_cr8()
1467 return vcpu->arch.cr8; in kvm_get_cr8()
1475 if (!(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)) { in kvm_update_dr0123()
1477 vcpu->arch.eff_db[i] = vcpu->arch.db[i]; in kvm_update_dr0123()
1485 if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) in kvm_update_dr7()
1486 dr7 = vcpu->arch.guest_debug_dr7; in kvm_update_dr7()
1488 dr7 = vcpu->arch.dr7; in kvm_update_dr7()
1490 vcpu->arch.switch_db_regs &= ~KVM_DEBUGREG_BP_ENABLED; in kvm_update_dr7()
1492 vcpu->arch.switch_db_regs |= KVM_DEBUGREG_BP_ENABLED; in kvm_update_dr7()
1510 size_t size = ARRAY_SIZE(vcpu->arch.db); in kvm_set_dr()
1514 vcpu->arch.db[array_index_nospec(dr, size)] = val; in kvm_set_dr()
1515 if (!(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)) in kvm_set_dr()
1516 vcpu->arch.eff_db[dr] = val; in kvm_set_dr()
1522 vcpu->arch.dr6 = (val & DR6_VOLATILE) | kvm_dr6_fixed(vcpu); in kvm_set_dr()
1528 vcpu->arch.dr7 = (val & DR7_VOLATILE) | DR7_FIXED_1; in kvm_set_dr()
1539 size_t size = ARRAY_SIZE(vcpu->arch.db); in kvm_get_dr()
1543 return vcpu->arch.db[array_index_nospec(dr, size)]; in kvm_get_dr()
1546 return vcpu->arch.dr6; in kvm_get_dr()
1549 return vcpu->arch.dr7; in kvm_get_dr()
1573 * 10 - MISC_PACKAGE_CTRLS
1574 * 11 - ENERGY_FILTERING_CTL
1575 * 12 - DOITM
1576 * 18 - FB_CLEAR_CTRL
1577 * 21 - XAPIC_DISABLE_STATUS
1578 * 23 - OVERCLOCKING_STATUS
1711 u64 old_efer = vcpu->arch.efer; in set_efer()
1712 u64 efer = msr_info->data; in set_efer()
1718 if (!msr_info->host_initiated) { in set_efer()
1723 (vcpu->arch.efer & EFER_LME) != (efer & EFER_LME)) in set_efer()
1728 efer |= vcpu->arch.efer & EFER_LMA; in set_efer()
1756 struct kvm *kvm = vcpu->kvm; in kvm_msr_allowed()
1765 idx = srcu_read_lock(&kvm->srcu); in kvm_msr_allowed()
1767 msr_filter = srcu_dereference(kvm->arch.msr_filter, &kvm->srcu); in kvm_msr_allowed()
1773 allowed = msr_filter->default_allow; in kvm_msr_allowed()
1774 ranges = msr_filter->ranges; in kvm_msr_allowed()
1776 for (i = 0; i < msr_filter->count; i++) { in kvm_msr_allowed()
1783 allowed = test_bit(index - start, bitmap); in kvm_msr_allowed()
1789 srcu_read_unlock(&kvm->srcu, idx); in kvm_msr_allowed()
1798 * Returns 0 on success, non-0 otherwise.
1819 * non-canonical address is written on Intel but not on in __kvm_set_msr()
1820 * AMD (which ignores the top 32-bits, because it does in __kvm_set_msr()
1821 * not implement 64-bit SYSENTER). in __kvm_set_msr()
1823 * 64-bit code should hence be able to write a non-canonical in __kvm_set_msr()
1825 * vmentry does not fail on Intel after writing a non-canonical in __kvm_set_msr()
1827 * invokes 64-bit SYSENTER. in __kvm_set_msr()
1846 * clear the bits. This ensures cross-vendor migration will in __kvm_set_msr()
1879 * Returns 0 on success, non-0 otherwise.
1946 if (!vcpu->run->msr.error) { in complete_userspace_rdmsr()
1947 kvm_rax_write(vcpu, (u32)vcpu->run->msr.data); in complete_userspace_rdmsr()
1948 kvm_rdx_write(vcpu, vcpu->run->msr.data >> 32); in complete_userspace_rdmsr()
1954 return complete_emulated_insn_gp(vcpu, vcpu->run->msr.error); in complete_emulated_msr_access()
1965 return kvm_x86_call(complete_emulated_msr)(vcpu, vcpu->run->msr.error); in complete_fast_msr_access()
1994 if (!(vcpu->kvm->arch.user_space_msr_mask & msr_reason)) in kvm_msr_user_space()
1997 vcpu->run->exit_reason = exit_reason; in kvm_msr_user_space()
1998 vcpu->run->msr.error = 0; in kvm_msr_user_space()
1999 memset(vcpu->run->msr.pad, 0, sizeof(vcpu->run->msr.pad)); in kvm_msr_user_space()
2000 vcpu->run->msr.reason = msr_reason; in kvm_msr_user_space()
2001 vcpu->run->msr.index = index; in kvm_msr_user_space()
2002 vcpu->run->msr.data = data; in kvm_msr_user_space()
2003 vcpu->arch.complete_userspace_io = completion; in kvm_msr_user_space()
2019 kvm_rax_write(vcpu, data & -1u); in kvm_emulate_rdmsr()
2020 kvm_rdx_write(vcpu, (data >> 32) & -1u); in kvm_emulate_rdmsr()
2082 if (kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS)) in kvm_emulate_monitor_mwait()
2085 if (kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT)) in kvm_emulate_monitor_mwait()
2088 enabled = vcpu->arch.ia32_misc_enable_msr & MSR_IA32_MISC_ENABLE_MWAIT; in kvm_emulate_monitor_mwait()
2113 return READ_ONCE(vcpu->mode) == EXITING_GUEST_MODE || in kvm_vcpu_exit_request()
2119 * i.e. the sending of IPI, sending IPI early in the VM-Exit flow reduces
2126 if (!lapic_in_kernel(vcpu) || !apic_x2apic_mode(vcpu->arch.apic)) in handle_fastpath_set_x2apic_icr_irqoff()
2133 return kvm_x2apic_icr_write(vcpu->arch.apic, data); in handle_fastpath_set_x2apic_icr_irqoff()
2207 return -EINVAL; in do_set_msr()
2239 write_seqcount_begin(&vdata->seq); in update_pvclock_gtod()
2242 vdata->clock.vclock_mode = tk->tkr_mono.clock->vdso_clock_mode; in update_pvclock_gtod()
2243 vdata->clock.cycle_last = tk->tkr_mono.cycle_last; in update_pvclock_gtod()
2244 vdata->clock.mask = tk->tkr_mono.mask; in update_pvclock_gtod()
2245 vdata->clock.mult = tk->tkr_mono.mult; in update_pvclock_gtod()
2246 vdata->clock.shift = tk->tkr_mono.shift; in update_pvclock_gtod()
2247 vdata->clock.base_cycles = tk->tkr_mono.xtime_nsec; in update_pvclock_gtod()
2248 vdata->clock.offset = tk->tkr_mono.base; in update_pvclock_gtod()
2250 vdata->raw_clock.vclock_mode = tk->tkr_raw.clock->vdso_clock_mode; in update_pvclock_gtod()
2251 vdata->raw_clock.cycle_last = tk->tkr_raw.cycle_last; in update_pvclock_gtod()
2252 vdata->raw_clock.mask = tk->tkr_raw.mask; in update_pvclock_gtod()
2253 vdata->raw_clock.mult = tk->tkr_raw.mult; in update_pvclock_gtod()
2254 vdata->raw_clock.shift = tk->tkr_raw.shift; in update_pvclock_gtod()
2255 vdata->raw_clock.base_cycles = tk->tkr_raw.xtime_nsec; in update_pvclock_gtod()
2256 vdata->raw_clock.offset = tk->tkr_raw.base; in update_pvclock_gtod()
2258 vdata->wall_time_sec = tk->xtime_sec; in update_pvclock_gtod()
2260 vdata->offs_boot = tk->offs_boot; in update_pvclock_gtod()
2262 write_seqcount_end(&vdata->seq); in update_pvclock_gtod()
2322 struct kvm_arch *ka = &vcpu->kvm->arch; in kvm_write_system_time()
2324 if (vcpu->vcpu_id == 0 && !host_initiated) { in kvm_write_system_time()
2325 if (ka->boot_vcpu_runs_old_kvmclock != old_msr) in kvm_write_system_time()
2328 ka->boot_vcpu_runs_old_kvmclock = old_msr; in kvm_write_system_time()
2331 vcpu->arch.time = system_time; in kvm_write_system_time()
2336 kvm_gpc_activate(&vcpu->arch.pv_time, system_time & ~1ULL, in kvm_write_system_time()
2339 kvm_gpc_deactivate(&vcpu->arch.pv_time); in kvm_write_system_time()
2362 shift--; in kvm_get_time_scale()
2407 vcpu->arch.tsc_catchup = 1; in set_tsc_khz()
2408 vcpu->arch.tsc_always_catchup = 1; in set_tsc_khz()
2412 return -1; in set_tsc_khz()
2416 /* TSC scaling required - calculate ratio */ in set_tsc_khz()
2421 pr_warn_ratelimited("Invalid TSC scaling ratio - virtual-tsc-khz=%u\n", in set_tsc_khz()
2423 return -1; in set_tsc_khz()
2439 return -1; in kvm_set_tsc_khz()
2444 &vcpu->arch.virtual_tsc_shift, in kvm_set_tsc_khz()
2445 &vcpu->arch.virtual_tsc_mult); in kvm_set_tsc_khz()
2446 vcpu->arch.virtual_tsc_khz = user_tsc_khz; in kvm_set_tsc_khz()
2454 thresh_lo = adjust_tsc_khz(tsc_khz, -tsc_tolerance_ppm); in kvm_set_tsc_khz()
2466 u64 tsc = pvclock_scale_delta(kernel_ns-vcpu->arch.this_tsc_nsec, in compute_guest_tsc()
2467 vcpu->arch.virtual_tsc_mult, in compute_guest_tsc()
2468 vcpu->arch.virtual_tsc_shift); in compute_guest_tsc()
2469 tsc += vcpu->arch.this_tsc_write; in compute_guest_tsc()
2483 struct kvm_arch *ka = &vcpu->kvm->arch; in kvm_track_tsc_matching()
2491 bool use_master_clock = (ka->nr_vcpus_matched_tsc + 1 == in kvm_track_tsc_matching()
2492 atomic_read(&vcpu->kvm->online_vcpus)) && in kvm_track_tsc_matching()
2493 gtod_is_based_on_tsc(gtod->clock.vclock_mode); in kvm_track_tsc_matching()
2501 if ((ka->use_master_clock && new_generation) || in kvm_track_tsc_matching()
2502 (ka->use_master_clock != use_master_clock)) in kvm_track_tsc_matching()
2505 trace_kvm_track_tsc(vcpu->vcpu_id, ka->nr_vcpus_matched_tsc, in kvm_track_tsc_matching()
2506 atomic_read(&vcpu->kvm->online_vcpus), in kvm_track_tsc_matching()
2507 ka->use_master_clock, gtod->clock.vclock_mode); in kvm_track_tsc_matching()
2512 * Multiply tsc by a fixed point number represented by ratio.
2514 * The most significant 64-N bits (mult) of ratio represent the
2517 * point number (mult + frac * 2^(-N)).
2540 tsc = kvm_scale_tsc(rdtsc(), vcpu->arch.l1_tsc_scaling_ratio); in kvm_compute_l1_tsc_offset()
2542 return target_tsc - tsc; in kvm_compute_l1_tsc_offset()
2547 return vcpu->arch.l1_tsc_offset + in kvm_read_l1_tsc()
2548 kvm_scale_tsc(host_tsc, vcpu->arch.l1_tsc_scaling_ratio); in kvm_read_l1_tsc()
2579 if (vcpu->arch.guest_tsc_protected) in kvm_vcpu_write_tsc_offset()
2582 trace_kvm_write_tsc_offset(vcpu->vcpu_id, in kvm_vcpu_write_tsc_offset()
2583 vcpu->arch.l1_tsc_offset, in kvm_vcpu_write_tsc_offset()
2586 vcpu->arch.l1_tsc_offset = l1_offset; in kvm_vcpu_write_tsc_offset()
2594 vcpu->arch.tsc_offset = kvm_calc_nested_tsc_offset( in kvm_vcpu_write_tsc_offset()
2599 vcpu->arch.tsc_offset = l1_offset; in kvm_vcpu_write_tsc_offset()
2606 vcpu->arch.l1_tsc_scaling_ratio = l1_multiplier; in kvm_vcpu_write_tsc_multiplier()
2610 vcpu->arch.tsc_scaling_ratio = kvm_calc_nested_tsc_multiplier( in kvm_vcpu_write_tsc_multiplier()
2614 vcpu->arch.tsc_scaling_ratio = l1_multiplier; in kvm_vcpu_write_tsc_multiplier()
2624 * TSC is marked unstable when we're running on Hyper-V, in kvm_check_tsc_unstable()
2641 struct kvm *kvm = vcpu->kvm; in __kvm_synchronize_tsc()
2643 lockdep_assert_held(&kvm->arch.tsc_write_lock); in __kvm_synchronize_tsc()
2645 if (vcpu->arch.guest_tsc_protected) in __kvm_synchronize_tsc()
2649 vcpu->kvm->arch.user_set_tsc = true; in __kvm_synchronize_tsc()
2655 kvm->arch.last_tsc_nsec = ns; in __kvm_synchronize_tsc()
2656 kvm->arch.last_tsc_write = tsc; in __kvm_synchronize_tsc()
2657 kvm->arch.last_tsc_khz = vcpu->arch.virtual_tsc_khz; in __kvm_synchronize_tsc()
2658 kvm->arch.last_tsc_offset = offset; in __kvm_synchronize_tsc()
2660 vcpu->arch.last_guest_tsc = tsc; in __kvm_synchronize_tsc()
2672 * These values are tracked in kvm->arch.cur_xxx variables. in __kvm_synchronize_tsc()
2674 kvm->arch.cur_tsc_generation++; in __kvm_synchronize_tsc()
2675 kvm->arch.cur_tsc_nsec = ns; in __kvm_synchronize_tsc()
2676 kvm->arch.cur_tsc_write = tsc; in __kvm_synchronize_tsc()
2677 kvm->arch.cur_tsc_offset = offset; in __kvm_synchronize_tsc()
2678 kvm->arch.nr_vcpus_matched_tsc = 0; in __kvm_synchronize_tsc()
2679 } else if (vcpu->arch.this_tsc_generation != kvm->arch.cur_tsc_generation) { in __kvm_synchronize_tsc()
2680 kvm->arch.nr_vcpus_matched_tsc++; in __kvm_synchronize_tsc()
2684 vcpu->arch.this_tsc_generation = kvm->arch.cur_tsc_generation; in __kvm_synchronize_tsc()
2685 vcpu->arch.this_tsc_nsec = kvm->arch.cur_tsc_nsec; in __kvm_synchronize_tsc()
2686 vcpu->arch.this_tsc_write = kvm->arch.cur_tsc_write; in __kvm_synchronize_tsc()
2694 struct kvm *kvm = vcpu->kvm; in kvm_synchronize_tsc()
2700 raw_spin_lock_irqsave(&kvm->arch.tsc_write_lock, flags); in kvm_synchronize_tsc()
2703 elapsed = ns - kvm->arch.last_tsc_nsec; in kvm_synchronize_tsc()
2705 if (vcpu->arch.virtual_tsc_khz) { in kvm_synchronize_tsc()
2712 } else if (kvm->arch.user_set_tsc) { in kvm_synchronize_tsc()
2713 u64 tsc_exp = kvm->arch.last_tsc_write + in kvm_synchronize_tsc()
2715 u64 tsc_hz = vcpu->arch.virtual_tsc_khz * 1000LL; in kvm_synchronize_tsc()
2717 * Here lies UAPI baggage: when a user-initiated TSC write has in kvm_synchronize_tsc()
2728 * come from the kernel's default vCPU creation. Make the 1-second in kvm_synchronize_tsc()
2744 vcpu->arch.virtual_tsc_khz == kvm->arch.last_tsc_khz) { in kvm_synchronize_tsc()
2746 offset = kvm->arch.cur_tsc_offset; in kvm_synchronize_tsc()
2756 raw_spin_unlock_irqrestore(&kvm->arch.tsc_write_lock, flags); in kvm_synchronize_tsc()
2762 u64 tsc_offset = vcpu->arch.l1_tsc_offset; in adjust_tsc_offset_guest()
2768 if (vcpu->arch.l1_tsc_scaling_ratio != kvm_caps.default_tsc_scaling_ratio) in adjust_tsc_offset_host()
2771 vcpu->arch.l1_tsc_scaling_ratio); in adjust_tsc_offset_host()
2803 switch (clock->vclock_mode) { in vgettsc()
2809 v = (tsc_pg_val - clock->cycle_last) & in vgettsc()
2810 clock->mask; in vgettsc()
2819 v = (*tsc_timestamp - clock->cycle_last) & in vgettsc()
2820 clock->mask; in vgettsc()
2829 return v * clock->mult; in vgettsc()
2834 * frequency of CLOCK_MONOTONIC_RAW (hence adding gtos->offs_boot).
2844 seq = read_seqcount_begin(>od->seq); in do_kvmclock_base()
2845 ns = gtod->raw_clock.base_cycles; in do_kvmclock_base()
2846 ns += vgettsc(>od->raw_clock, tsc_timestamp, &mode); in do_kvmclock_base()
2847 ns >>= gtod->raw_clock.shift; in do_kvmclock_base()
2848 ns += ktime_to_ns(ktime_add(gtod->raw_clock.offset, gtod->offs_boot)); in do_kvmclock_base()
2849 } while (unlikely(read_seqcount_retry(>od->seq, seq))); in do_kvmclock_base()
2867 seq = read_seqcount_begin(>od->seq); in do_monotonic()
2868 ns = gtod->clock.base_cycles; in do_monotonic()
2869 ns += vgettsc(>od->clock, tsc_timestamp, &mode); in do_monotonic()
2870 ns >>= gtod->clock.shift; in do_monotonic()
2871 ns += ktime_to_ns(gtod->clock.offset); in do_monotonic()
2872 } while (unlikely(read_seqcount_retry(>od->seq, seq))); in do_monotonic()
2886 seq = read_seqcount_begin(>od->seq); in do_realtime()
2887 ts->tv_sec = gtod->wall_time_sec; in do_realtime()
2888 ns = gtod->clock.base_cycles; in do_realtime()
2889 ns += vgettsc(>od->clock, tsc_timestamp, &mode); in do_realtime()
2890 ns >>= gtod->clock.shift; in do_realtime()
2891 } while (unlikely(read_seqcount_retry(>od->seq, seq))); in do_realtime()
2893 ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns); in do_realtime()
2894 ts->tv_nsec = ns; in do_realtime()
2962 * 4. ret0 = timespec0 + (rdtsc - tsc0) |
2963 * 5. | ret1 = timespec1 + (rdtsc - tsc1)
2964 * | ret1 = timespec0 + N + (rdtsc - (tsc0 + M))
2968 * - ret0 < ret1
2969 * - timespec0 + (rdtsc - tsc0) < timespec0 + N + (rdtsc - (tsc0 + M))
2971 * - 0 < N - M => M < N
2990 struct kvm_arch *ka = &kvm->arch; in pvclock_update_vm_gtod_copy()
2994 lockdep_assert_held(&kvm->arch.tsc_write_lock); in pvclock_update_vm_gtod_copy()
2995 vcpus_matched = (ka->nr_vcpus_matched_tsc + 1 == in pvclock_update_vm_gtod_copy()
2996 atomic_read(&kvm->online_vcpus)); in pvclock_update_vm_gtod_copy()
3003 &ka->master_kernel_ns, in pvclock_update_vm_gtod_copy()
3004 &ka->master_cycle_now); in pvclock_update_vm_gtod_copy()
3006 ka->use_master_clock = host_tsc_clocksource && vcpus_matched in pvclock_update_vm_gtod_copy()
3007 && !ka->backwards_tsc_observed in pvclock_update_vm_gtod_copy()
3008 && !ka->boot_vcpu_runs_old_kvmclock; in pvclock_update_vm_gtod_copy()
3010 if (ka->use_master_clock) in pvclock_update_vm_gtod_copy()
3014 trace_kvm_update_master_clock(ka->use_master_clock, vclock_mode, in pvclock_update_vm_gtod_copy()
3026 raw_spin_lock_irq(&kvm->arch.tsc_write_lock); in __kvm_start_pvclock_update()
3027 write_seqcount_begin(&kvm->arch.pvclock_sc); in __kvm_start_pvclock_update()
3040 struct kvm_arch *ka = &kvm->arch; in kvm_end_pvclock_update()
3044 write_seqcount_end(&ka->pvclock_sc); in kvm_end_pvclock_update()
3045 raw_spin_unlock_irq(&ka->tsc_write_lock); in kvm_end_pvclock_update()
3064 * per-CPU value (which may be zero if a CPU is going offline). Note, tsc_khz
3078 /* Called within read_seqcount_begin/retry for kvm->pvclock_sc. */
3081 struct kvm_arch *ka = &kvm->arch; in __get_kvmclock()
3087 data->flags = 0; in __get_kvmclock()
3088 if (ka->use_master_clock && in __get_kvmclock()
3093 if (kvm_get_walltime_and_clockread(&ts, &data->host_tsc)) { in __get_kvmclock()
3094 data->realtime = ts.tv_nsec + NSEC_PER_SEC * ts.tv_sec; in __get_kvmclock()
3095 data->flags |= KVM_CLOCK_REALTIME | KVM_CLOCK_HOST_TSC; in __get_kvmclock()
3098 data->host_tsc = rdtsc(); in __get_kvmclock()
3100 data->flags |= KVM_CLOCK_TSC_STABLE; in __get_kvmclock()
3101 hv_clock.tsc_timestamp = ka->master_cycle_now; in __get_kvmclock()
3102 hv_clock.system_time = ka->master_kernel_ns + ka->kvmclock_offset; in __get_kvmclock()
3106 data->clock = __pvclock_read_cycles(&hv_clock, data->host_tsc); in __get_kvmclock()
3108 data->clock = get_kvmclock_base_ns() + ka->kvmclock_offset; in __get_kvmclock()
3116 struct kvm_arch *ka = &kvm->arch; in get_kvmclock()
3120 seq = read_seqcount_begin(&ka->pvclock_sc); in get_kvmclock()
3122 } while (read_seqcount_retry(&ka->pvclock_sc, seq)); in get_kvmclock()
3144 read_lock_irqsave(&gpc->lock, flags); in kvm_setup_guest_pvclock()
3146 read_unlock_irqrestore(&gpc->lock, flags); in kvm_setup_guest_pvclock()
3151 read_lock_irqsave(&gpc->lock, flags); in kvm_setup_guest_pvclock()
3154 guest_hv_clock = (void *)(gpc->khva + offset); in kvm_setup_guest_pvclock()
3163 guest_hv_clock->version = hv_clock.version = (guest_hv_clock->version + 1) | 1; in kvm_setup_guest_pvclock()
3167 hv_clock.flags |= (guest_hv_clock->flags & PVCLOCK_GUEST_STOPPED); in kvm_setup_guest_pvclock()
3173 guest_hv_clock->version = ++hv_clock.version; in kvm_setup_guest_pvclock()
3176 read_unlock_irqrestore(&gpc->lock, flags); in kvm_setup_guest_pvclock()
3178 trace_kvm_pvclock_update(vcpu->vcpu_id, &hv_clock); in kvm_setup_guest_pvclock()
3186 struct kvm_vcpu_arch *vcpu = &v->arch; in kvm_guest_time_update()
3187 struct kvm_arch *ka = &v->kvm->arch; in kvm_guest_time_update()
3200 seq = read_seqcount_begin(&ka->pvclock_sc); in kvm_guest_time_update()
3201 use_master_clock = ka->use_master_clock; in kvm_guest_time_update()
3203 host_tsc = ka->master_cycle_now; in kvm_guest_time_update()
3204 kernel_ns = ka->master_kernel_ns; in kvm_guest_time_update()
3206 } while (read_seqcount_retry(&ka->pvclock_sc, seq)); in kvm_guest_time_update()
3233 if (vcpu->tsc_catchup) { in kvm_guest_time_update()
3236 adjust_tsc_offset_guest(v, tsc - tsc_timestamp); in kvm_guest_time_update()
3247 v->arch.l1_tsc_scaling_ratio); in kvm_guest_time_update()
3249 if (unlikely(vcpu->hw_tsc_khz != tgt_tsc_khz)) { in kvm_guest_time_update()
3251 &vcpu->pvclock_tsc_shift, in kvm_guest_time_update()
3252 &vcpu->pvclock_tsc_mul); in kvm_guest_time_update()
3253 vcpu->hw_tsc_khz = tgt_tsc_khz; in kvm_guest_time_update()
3256 hv_clock.tsc_shift = vcpu->pvclock_tsc_shift; in kvm_guest_time_update()
3257 hv_clock.tsc_to_system_mul = vcpu->pvclock_tsc_mul; in kvm_guest_time_update()
3259 hv_clock.system_time = kernel_ns + v->kvm->arch.kvmclock_offset; in kvm_guest_time_update()
3260 vcpu->last_guest_tsc = tsc_timestamp; in kvm_guest_time_update()
3267 if (vcpu->pv_time.active) { in kvm_guest_time_update()
3273 if (vcpu->pvclock_set_guest_stopped_request) { in kvm_guest_time_update()
3275 vcpu->pvclock_set_guest_stopped_request = false; in kvm_guest_time_update()
3277 kvm_setup_guest_pvclock(&hv_clock, v, &vcpu->pv_time, 0); in kvm_guest_time_update()
3282 kvm_hv_setup_tsc_page(v->kvm, &hv_clock); in kvm_guest_time_update()
3293 if (ka->xen.hvm_config.flags & KVM_XEN_HVM_CONFIG_PVCLOCK_TSC_UNSTABLE) in kvm_guest_time_update()
3296 if (vcpu->xen.vcpu_info_cache.active) in kvm_guest_time_update()
3297 kvm_setup_guest_pvclock(&hv_clock, v, &vcpu->xen.vcpu_info_cache, in kvm_guest_time_update()
3299 if (vcpu->xen.vcpu_time_info_cache.active) in kvm_guest_time_update()
3300 kvm_setup_guest_pvclock(&hv_clock, v, &vcpu->xen.vcpu_time_info_cache, 0); in kvm_guest_time_update()
3328 struct kvm_arch *ka = &kvm->arch; in kvm_get_wall_clock_epoch()
3334 seq = read_seqcount_begin(&ka->pvclock_sc); in kvm_get_wall_clock_epoch()
3337 if (!ka->use_master_clock) in kvm_get_wall_clock_epoch()
3359 hv_clock.tsc_timestamp = ka->master_cycle_now; in kvm_get_wall_clock_epoch()
3360 hv_clock.system_time = ka->master_kernel_ns + ka->kvmclock_offset; in kvm_get_wall_clock_epoch()
3362 } while (read_seqcount_retry(&ka->pvclock_sc, seq)); in kvm_get_wall_clock_epoch()
3368 * since 1970-01-01. in kvm_get_wall_clock_epoch()
3374 return ts.tv_nsec + NSEC_PER_SEC * ts.tv_sec - in kvm_get_wall_clock_epoch()
3378 return ktime_get_real_ns() - get_kvmclock_ns(kvm); in kvm_get_wall_clock_epoch()
3383 * vcpu->cpu migration, should not allow system_timestamp from
3389 * We need to rate-limit these requests though, as they can
3392 * by the delay we use to rate-limit the updates.
3414 struct kvm *kvm = v->kvm; in kvm_gen_kvmclock_update()
3417 schedule_delayed_work(&kvm->arch.kvmclock_update_work, in kvm_gen_kvmclock_update()
3430 schedule_delayed_work(&kvm->arch.kvmclock_update_work, 0); in kvmclock_sync_fn()
3431 schedule_delayed_work(&kvm->arch.kvmclock_sync_work, in kvmclock_sync_fn()
3452 return !!(vcpu->arch.msr_hwcr & BIT_ULL(18)); in can_set_mci_status()
3459 u64 mcg_cap = vcpu->arch.mcg_cap; in set_msr_mce()
3461 u32 msr = msr_info->index; in set_msr_mce()
3462 u64 data = msr_info->data; in set_msr_mce()
3467 vcpu->arch.mcg_status = data; in set_msr_mce()
3471 (data || !msr_info->host_initiated)) in set_msr_mce()
3475 vcpu->arch.mcg_ctl = data; in set_msr_mce()
3477 case MSR_IA32_MC0_CTL2 ... MSR_IA32_MCx_CTL2(KVM_MAX_MCE_BANKS) - 1: in set_msr_mce()
3478 last_msr = MSR_IA32_MCx_CTL2(bank_num) - 1; in set_msr_mce()
3482 if (!(mcg_cap & MCG_CMCI_P) && (data || !msr_info->host_initiated)) in set_msr_mce()
3487 offset = array_index_nospec(msr - MSR_IA32_MC0_CTL2, in set_msr_mce()
3488 last_msr + 1 - MSR_IA32_MC0_CTL2); in set_msr_mce()
3489 vcpu->arch.mci_ctl2_banks[offset] = data; in set_msr_mce()
3491 case MSR_IA32_MC0_CTL ... MSR_IA32_MCx_CTL(KVM_MAX_MCE_BANKS) - 1: in set_msr_mce()
3492 last_msr = MSR_IA32_MCx_CTL(bank_num) - 1; in set_msr_mce()
3504 * single-bit ECC data errors. in set_msr_mce()
3512 * AMD-based CPUs allow non-zero values, but if and only if in set_msr_mce()
3515 if (!msr_info->host_initiated && is_mci_status_msr(msr) && in set_msr_mce()
3519 offset = array_index_nospec(msr - MSR_IA32_MC0_CTL, in set_msr_mce()
3520 last_msr + 1 - MSR_IA32_MC0_CTL); in set_msr_mce()
3521 vcpu->arch.mce_banks[offset] = data; in set_msr_mce()
3533 return (vcpu->arch.apf.msr_en_val & mask) == mask; in kvm_pv_async_pf_enabled()
3555 vcpu->arch.apf.msr_en_val = data; in kvm_pv_enable_async_pf()
3563 if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.apf.data, gpa, in kvm_pv_enable_async_pf()
3567 vcpu->arch.apf.send_always = (data & KVM_ASYNC_PF_SEND_ALWAYS); in kvm_pv_enable_async_pf()
3568 vcpu->arch.apf.delivery_as_pf_vmexit = data & KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT; in kvm_pv_enable_async_pf()
3577 /* Bits 8-63 are reserved */ in kvm_pv_enable_async_pf_int()
3584 vcpu->arch.apf.msr_int_val = data; in kvm_pv_enable_async_pf_int()
3586 vcpu->arch.apf.vec = data & KVM_ASYNC_PF_VEC_MASK; in kvm_pv_enable_async_pf_int()
3593 kvm_gpc_deactivate(&vcpu->arch.pv_time); in kvmclock_reset()
3594 vcpu->arch.time = 0; in kvmclock_reset()
3599 ++vcpu->stat.tlb_flush; in kvm_vcpu_flush_tlb_all()
3608 ++vcpu->stat.tlb_flush; in kvm_vcpu_flush_tlb_guest()
3624 * Flushing all "guest" TLB is always a superset of Hyper-V's fine in kvm_vcpu_flush_tlb_guest()
3633 ++vcpu->stat.tlb_flush; in kvm_vcpu_flush_tlb_current()
3641 * prior before nested VM-Enter/VM-Exit.
3655 struct gfn_to_hva_cache *ghc = &vcpu->arch.st.cache; in record_steal_time()
3658 gpa_t gpa = vcpu->arch.st.msr_val & KVM_STEAL_VALID_BITS; in record_steal_time()
3662 if (kvm_xen_msr_enabled(vcpu->kvm)) { in record_steal_time()
3667 if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED)) in record_steal_time()
3670 if (WARN_ON_ONCE(current->mm != vcpu->kvm->mm)) in record_steal_time()
3673 slots = kvm_memslots(vcpu->kvm); in record_steal_time()
3675 if (unlikely(slots->generation != ghc->generation || in record_steal_time()
3676 gpa != ghc->gpa || in record_steal_time()
3677 kvm_is_error_hva(ghc->hva) || !ghc->memslot)) { in record_steal_time()
3679 BUILD_BUG_ON((sizeof(*st) - 1) & KVM_STEAL_VALID_BITS); in record_steal_time()
3681 if (kvm_gfn_to_hva_cache_init(vcpu->kvm, ghc, gpa, sizeof(*st)) || in record_steal_time()
3682 kvm_is_error_hva(ghc->hva) || !ghc->memslot) in record_steal_time()
3686 st = (struct kvm_steal_time __user *)ghc->hva; in record_steal_time()
3693 int err = -EFAULT; in record_steal_time()
3704 "+m" (st->preempted)); in record_steal_time()
3710 vcpu->arch.st.preempted = 0; in record_steal_time()
3712 trace_kvm_pv_tlb_flush(vcpu->vcpu_id, in record_steal_time()
3723 unsafe_put_user(0, &st->preempted, out); in record_steal_time()
3724 vcpu->arch.st.preempted = 0; in record_steal_time()
3727 unsafe_get_user(version, &st->version, out); in record_steal_time()
3732 unsafe_put_user(version, &st->version, out); in record_steal_time()
3736 unsafe_get_user(steal, &st->steal, out); in record_steal_time()
3737 steal += current->sched_info.run_delay - in record_steal_time()
3738 vcpu->arch.st.last_steal; in record_steal_time()
3739 vcpu->arch.st.last_steal = current->sched_info.run_delay; in record_steal_time()
3740 unsafe_put_user(steal, &st->steal, out); in record_steal_time()
3743 unsafe_put_user(version, &st->version, out); in record_steal_time()
3748 mark_page_dirty_in_slot(vcpu->kvm, ghc->memslot, gpa_to_gfn(ghc->gpa)); in record_steal_time()
3753 u32 msr = msr_info->index; in kvm_set_msr_common()
3754 u64 data = msr_info->data; in kvm_set_msr_common()
3757 * Do not allow host-initiated writes to trigger the Xen hypercall in kvm_set_msr_common()
3761 if (kvm_xen_is_hypercall_page_msr(vcpu->kvm, msr) && in kvm_set_msr_common()
3762 !msr_info->host_initiated) in kvm_set_msr_common()
3777 if (msr_info->host_initiated) in kvm_set_msr_common()
3778 vcpu->arch.microcode_version = data; in kvm_set_msr_common()
3781 if (!msr_info->host_initiated || in kvm_set_msr_common()
3784 vcpu->arch.arch_capabilities = data; in kvm_set_msr_common()
3787 if (!msr_info->host_initiated || in kvm_set_msr_common()
3799 if (vcpu->arch.perf_capabilities == data) in kvm_set_msr_common()
3802 vcpu->arch.perf_capabilities = data; in kvm_set_msr_common()
3808 if (!msr_info->host_initiated) { in kvm_set_msr_common()
3836 if (!msr_info->host_initiated && in kvm_set_msr_common()
3863 vcpu->arch.msr_hwcr = data; in kvm_set_msr_common()
3875 vcpu->arch.pat = data; in kvm_set_msr_common()
3881 return kvm_apic_set_base(vcpu, data, msr_info->host_initiated); in kvm_set_msr_common()
3889 if (!msr_info->host_initiated) { in kvm_set_msr_common()
3890 s64 adj = data - vcpu->arch.ia32_tsc_adjust_msr; in kvm_set_msr_common()
3897 vcpu->arch.ia32_tsc_adjust_msr = data; in kvm_set_msr_common()
3901 u64 old_val = vcpu->arch.ia32_misc_enable_msr; in kvm_set_msr_common()
3903 if (!msr_info->host_initiated) { in kvm_set_msr_common()
3913 if (!kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT) && in kvm_set_msr_common()
3917 vcpu->arch.ia32_misc_enable_msr = data; in kvm_set_msr_common()
3918 vcpu->arch.cpuid_dynamic_bits_dirty = true; in kvm_set_msr_common()
3920 vcpu->arch.ia32_misc_enable_msr = data; in kvm_set_msr_common()
3925 if (!IS_ENABLED(CONFIG_KVM_SMM) || !msr_info->host_initiated) in kvm_set_msr_common()
3927 vcpu->arch.smbase = data; in kvm_set_msr_common()
3930 vcpu->arch.msr_ia32_power_ctl = data; in kvm_set_msr_common()
3933 if (msr_info->host_initiated) { in kvm_set_msr_common()
3935 } else if (!vcpu->arch.guest_tsc_protected) { in kvm_set_msr_common()
3936 u64 adj = kvm_compute_l1_tsc_offset(vcpu, data) - vcpu->arch.l1_tsc_offset; in kvm_set_msr_common()
3938 vcpu->arch.ia32_tsc_adjust_msr += adj; in kvm_set_msr_common()
3942 if (!msr_info->host_initiated && in kvm_set_msr_common()
3952 vcpu->arch.ia32_xss = data; in kvm_set_msr_common()
3953 vcpu->arch.cpuid_dynamic_bits_dirty = true; in kvm_set_msr_common()
3956 if (!msr_info->host_initiated) in kvm_set_msr_common()
3958 vcpu->arch.smi_count = data; in kvm_set_msr_common()
3964 vcpu->kvm->arch.wall_clock = data; in kvm_set_msr_common()
3965 kvm_write_wall_clock(vcpu->kvm, data, 0); in kvm_set_msr_common()
3971 vcpu->kvm->arch.wall_clock = data; in kvm_set_msr_common()
3972 kvm_write_wall_clock(vcpu->kvm, data, 0); in kvm_set_msr_common()
3978 kvm_write_system_time(vcpu, data, false, msr_info->host_initiated); in kvm_set_msr_common()
3984 kvm_write_system_time(vcpu, data, true, msr_info->host_initiated); in kvm_set_msr_common()
4004 vcpu->arch.apf.pageready_pending = false; in kvm_set_msr_common()
4018 vcpu->arch.st.msr_val = data; in kvm_set_msr_common()
4039 if (data & (-1ULL << 1)) in kvm_set_msr_common()
4042 vcpu->arch.msr_kvm_poll_control = data; in kvm_set_msr_common()
4047 case MSR_IA32_MC0_CTL ... MSR_IA32_MCx_CTL(KVM_MAX_MCE_BANKS) - 1: in kvm_set_msr_common()
4048 case MSR_IA32_MC0_CTL2 ... MSR_IA32_MCx_CTL2(KVM_MAX_MCE_BANKS) - 1: in kvm_set_msr_common()
4065 * all pre-dating SVM, but a recommended workaround from in kvm_set_msr_common()
4083 msr_info->host_initiated); in kvm_set_msr_common()
4086 /* Drop writes to this legacy MSR -- see rdmsr in kvm_set_msr_common()
4094 vcpu->arch.osvw.length = data; in kvm_set_msr_common()
4099 vcpu->arch.osvw.status = data; in kvm_set_msr_common()
4102 if (!msr_info->host_initiated) in kvm_set_msr_common()
4104 vcpu->arch.msr_platform_info = data; in kvm_set_msr_common()
4111 vcpu->arch.msr_misc_features_enables = data; in kvm_set_msr_common()
4115 if (!msr_info->host_initiated && in kvm_set_msr_common()
4122 fpu_update_guest_xfd(&vcpu->arch.guest_fpu, data); in kvm_set_msr_common()
4125 if (!msr_info->host_initiated && in kvm_set_msr_common()
4132 vcpu->arch.guest_fpu.xfd_err = data; in kvm_set_msr_common()
4148 u64 mcg_cap = vcpu->arch.mcg_cap; in get_msr_mce()
4158 data = vcpu->arch.mcg_cap; in get_msr_mce()
4163 data = vcpu->arch.mcg_ctl; in get_msr_mce()
4166 data = vcpu->arch.mcg_status; in get_msr_mce()
4168 case MSR_IA32_MC0_CTL2 ... MSR_IA32_MCx_CTL2(KVM_MAX_MCE_BANKS) - 1: in get_msr_mce()
4169 last_msr = MSR_IA32_MCx_CTL2(bank_num) - 1; in get_msr_mce()
4175 offset = array_index_nospec(msr - MSR_IA32_MC0_CTL2, in get_msr_mce()
4176 last_msr + 1 - MSR_IA32_MC0_CTL2); in get_msr_mce()
4177 data = vcpu->arch.mci_ctl2_banks[offset]; in get_msr_mce()
4179 case MSR_IA32_MC0_CTL ... MSR_IA32_MCx_CTL(KVM_MAX_MCE_BANKS) - 1: in get_msr_mce()
4180 last_msr = MSR_IA32_MCx_CTL(bank_num) - 1; in get_msr_mce()
4184 offset = array_index_nospec(msr - MSR_IA32_MC0_CTL, in get_msr_mce()
4185 last_msr + 1 - MSR_IA32_MC0_CTL); in get_msr_mce()
4186 data = vcpu->arch.mce_banks[offset]; in get_msr_mce()
4197 switch (msr_info->index) { in kvm_get_msr_common()
4220 * so for existing CPU-specific MSRs. in kvm_get_msr_common()
4227 msr_info->data = 0; in kvm_get_msr_common()
4233 if (kvm_pmu_is_valid_msr(vcpu, msr_info->index)) in kvm_get_msr_common()
4235 msr_info->data = 0; in kvm_get_msr_common()
4238 msr_info->data = vcpu->arch.microcode_version; in kvm_get_msr_common()
4243 msr_info->data = vcpu->arch.arch_capabilities; in kvm_get_msr_common()
4248 msr_info->data = vcpu->arch.perf_capabilities; in kvm_get_msr_common()
4251 msr_info->data = vcpu->arch.msr_ia32_power_ctl; in kvm_get_msr_common()
4260 * return L1's TSC value to ensure backwards-compatible in kvm_get_msr_common()
4265 if (msr_info->host_initiated) { in kvm_get_msr_common()
4266 offset = vcpu->arch.l1_tsc_offset; in kvm_get_msr_common()
4267 ratio = vcpu->arch.l1_tsc_scaling_ratio; in kvm_get_msr_common()
4269 offset = vcpu->arch.tsc_offset; in kvm_get_msr_common()
4270 ratio = vcpu->arch.tsc_scaling_ratio; in kvm_get_msr_common()
4273 msr_info->data = kvm_scale_tsc(rdtsc(), ratio) + offset; in kvm_get_msr_common()
4277 msr_info->data = vcpu->arch.pat; in kvm_get_msr_common()
4282 return kvm_mtrr_get_msr(vcpu, msr_info->index, &msr_info->data); in kvm_get_msr_common()
4284 msr_info->data = 3; in kvm_get_msr_common()
4298 msr_info->data = 1 << 24; in kvm_get_msr_common()
4301 msr_info->data = vcpu->arch.apic_base; in kvm_get_msr_common()
4304 return kvm_x2apic_msr_read(vcpu, msr_info->index, &msr_info->data); in kvm_get_msr_common()
4306 msr_info->data = kvm_get_lapic_tscdeadline_msr(vcpu); in kvm_get_msr_common()
4309 msr_info->data = (u64)vcpu->arch.ia32_tsc_adjust_msr; in kvm_get_msr_common()
4312 msr_info->data = vcpu->arch.ia32_misc_enable_msr; in kvm_get_msr_common()
4315 if (!IS_ENABLED(CONFIG_KVM_SMM) || !msr_info->host_initiated) in kvm_get_msr_common()
4317 msr_info->data = vcpu->arch.smbase; in kvm_get_msr_common()
4320 msr_info->data = vcpu->arch.smi_count; in kvm_get_msr_common()
4324 msr_info->data = 1000ULL; in kvm_get_msr_common()
4326 msr_info->data |= (((uint64_t)4ULL) << 40); in kvm_get_msr_common()
4329 msr_info->data = vcpu->arch.efer; in kvm_get_msr_common()
4335 msr_info->data = vcpu->kvm->arch.wall_clock; in kvm_get_msr_common()
4341 msr_info->data = vcpu->kvm->arch.wall_clock; in kvm_get_msr_common()
4347 msr_info->data = vcpu->arch.time; in kvm_get_msr_common()
4353 msr_info->data = vcpu->arch.time; in kvm_get_msr_common()
4359 msr_info->data = vcpu->arch.apf.msr_en_val; in kvm_get_msr_common()
4365 msr_info->data = vcpu->arch.apf.msr_int_val; in kvm_get_msr_common()
4371 msr_info->data = 0; in kvm_get_msr_common()
4377 msr_info->data = vcpu->arch.st.msr_val; in kvm_get_msr_common()
4383 msr_info->data = vcpu->arch.pv_eoi.msr_val; in kvm_get_msr_common()
4389 msr_info->data = vcpu->arch.msr_kvm_poll_control; in kvm_get_msr_common()
4396 case MSR_IA32_MC0_CTL ... MSR_IA32_MCx_CTL(KVM_MAX_MCE_BANKS) - 1: in kvm_get_msr_common()
4397 case MSR_IA32_MC0_CTL2 ... MSR_IA32_MCx_CTL2(KVM_MAX_MCE_BANKS) - 1: in kvm_get_msr_common()
4398 return get_msr_mce(vcpu, msr_info->index, &msr_info->data, in kvm_get_msr_common()
4399 msr_info->host_initiated); in kvm_get_msr_common()
4401 if (!msr_info->host_initiated && in kvm_get_msr_common()
4404 msr_info->data = vcpu->arch.ia32_xss; in kvm_get_msr_common()
4408 * Provide expected ramp-up count for K7. All other in kvm_get_msr_common()
4416 msr_info->data = 0x20000000; in kvm_get_msr_common()
4430 msr_info->index, &msr_info->data, in kvm_get_msr_common()
4431 msr_info->host_initiated); in kvm_get_msr_common()
4444 msr_info->data = 0xbe702111; in kvm_get_msr_common()
4449 msr_info->data = vcpu->arch.osvw.length; in kvm_get_msr_common()
4454 msr_info->data = vcpu->arch.osvw.status; in kvm_get_msr_common()
4457 if (!msr_info->host_initiated && in kvm_get_msr_common()
4458 !vcpu->kvm->arch.guest_can_read_msr_platform_info) in kvm_get_msr_common()
4460 msr_info->data = vcpu->arch.msr_platform_info; in kvm_get_msr_common()
4463 msr_info->data = vcpu->arch.msr_misc_features_enables; in kvm_get_msr_common()
4466 msr_info->data = vcpu->arch.msr_hwcr; in kvm_get_msr_common()
4470 if (!msr_info->host_initiated && in kvm_get_msr_common()
4474 msr_info->data = vcpu->arch.guest_fpu.fpstate->xfd; in kvm_get_msr_common()
4477 if (!msr_info->host_initiated && in kvm_get_msr_common()
4481 msr_info->data = vcpu->arch.guest_fpu.xfd_err; in kvm_get_msr_common()
4485 if (kvm_pmu_is_valid_msr(vcpu, msr_info->index)) in kvm_get_msr_common()
4506 for (i = 0; i < msrs->nmsrs; ++i) in __msr_io()
4528 r = -EFAULT; in msr_io()
4532 r = -E2BIG; in msr_io()
4537 entries = memdup_user(user_msrs->entries, size); in msr_io()
4545 if (writeback && copy_to_user(user_msrs->entries, entries, size)) in msr_io()
4546 r = -EFAULT; in msr_io()
4581 r = -EFAULT; in kvm_ioctl_get_supported_hv_cpuid()
4585 r = kvm_get_hv_cpuid(vcpu, &cpuid, cpuid_arg->entries); in kvm_ioctl_get_supported_hv_cpuid()
4589 r = -EFAULT; in kvm_ioctl_get_supported_hv_cpuid()
4604 return kvm && kvm->arch.has_protected_state ? 0 : KVM_SYNC_X86_VALID_FIELDS; in kvm_sync_valid_fields()
4763 r = kvm_x86_ops.nested_ops->get_state ? in kvm_vm_ioctl_check_extension()
4764 kvm_x86_ops.nested_ops->get_state(NULL, NULL, 0) : 0; in kvm_vm_ioctl_check_extension()
4771 r = kvm_x86_ops.nested_ops->enable_evmcs != NULL; in kvm_vm_ioctl_check_extension()
4816 if (attr->group) { in __kvm_x86_dev_get_attr()
4818 return kvm_x86_call(dev_get_attr)(attr->group, attr->attr, val); in __kvm_x86_dev_get_attr()
4819 return -ENXIO; in __kvm_x86_dev_get_attr()
4822 switch (attr->attr) { in __kvm_x86_dev_get_attr()
4827 return -ENXIO; in __kvm_x86_dev_get_attr()
4833 u64 __user *uaddr = u64_to_user_ptr(attr->addr); in kvm_x86_dev_get_attr()
4842 return -EFAULT; in kvm_x86_dev_get_attr()
4866 r = -EFAULT; in kvm_arch_dev_ioctl()
4873 r = -E2BIG; in kvm_arch_dev_ioctl()
4876 r = -EFAULT; in kvm_arch_dev_ioctl()
4877 if (copy_to_user(user_msr_list->indices, &msrs_to_save, in kvm_arch_dev_ioctl()
4880 if (copy_to_user(user_msr_list->indices + num_msrs_to_save, in kvm_arch_dev_ioctl()
4892 r = -EFAULT; in kvm_arch_dev_ioctl()
4896 r = kvm_dev_ioctl_get_cpuid(&cpuid, cpuid_arg->entries, in kvm_arch_dev_ioctl()
4901 r = -EFAULT; in kvm_arch_dev_ioctl()
4908 r = -EFAULT; in kvm_arch_dev_ioctl()
4919 r = -EFAULT; in kvm_arch_dev_ioctl()
4926 r = -E2BIG; in kvm_arch_dev_ioctl()
4929 r = -EFAULT; in kvm_arch_dev_ioctl()
4930 if (copy_to_user(user_msr_list->indices, &msr_based_features, in kvm_arch_dev_ioctl()
4946 r = -EFAULT; in kvm_arch_dev_ioctl()
4954 r = -EFAULT; in kvm_arch_dev_ioctl()
4961 r = -EINVAL; in kvm_arch_dev_ioctl()
4975 return kvm_arch_has_noncoherent_dma(vcpu->kvm); in need_emulate_wbinvd()
4982 vcpu->arch.l1tf_flush_l1d = true; in kvm_arch_vcpu_load()
4984 if (vcpu->scheduled_out && pmu->version && pmu->event_count) { in kvm_arch_vcpu_load()
4985 pmu->need_cleanup = true; in kvm_arch_vcpu_load()
4992 cpumask_set_cpu(cpu, vcpu->arch.wbinvd_dirty_mask); in kvm_arch_vcpu_load()
4993 else if (vcpu->cpu != -1 && vcpu->cpu != cpu) in kvm_arch_vcpu_load()
4994 smp_call_function_single(vcpu->cpu, in kvm_arch_vcpu_load()
5001 vcpu->arch.host_pkru = read_pkru(); in kvm_arch_vcpu_load()
5004 if (unlikely(vcpu->arch.tsc_offset_adjustment)) { in kvm_arch_vcpu_load()
5005 adjust_tsc_offset_host(vcpu, vcpu->arch.tsc_offset_adjustment); in kvm_arch_vcpu_load()
5006 vcpu->arch.tsc_offset_adjustment = 0; in kvm_arch_vcpu_load()
5010 if (unlikely(vcpu->cpu != cpu) || kvm_check_tsc_unstable()) { in kvm_arch_vcpu_load()
5011 s64 tsc_delta = !vcpu->arch.last_host_tsc ? 0 : in kvm_arch_vcpu_load()
5012 rdtsc() - vcpu->arch.last_host_tsc; in kvm_arch_vcpu_load()
5018 vcpu->arch.last_guest_tsc); in kvm_arch_vcpu_load()
5020 if (!vcpu->arch.guest_tsc_protected) in kvm_arch_vcpu_load()
5021 vcpu->arch.tsc_catchup = 1; in kvm_arch_vcpu_load()
5029 * kvmclock on vcpu->cpu migration in kvm_arch_vcpu_load()
5031 if (!vcpu->kvm->arch.use_master_clock || vcpu->cpu == -1) in kvm_arch_vcpu_load()
5033 if (vcpu->cpu != cpu) in kvm_arch_vcpu_load()
5035 vcpu->cpu = cpu; in kvm_arch_vcpu_load()
5043 struct gfn_to_hva_cache *ghc = &vcpu->arch.st.cache; in kvm_steal_time_set_preempted()
5047 gpa_t gpa = vcpu->arch.st.msr_val & KVM_STEAL_VALID_BITS; in kvm_steal_time_set_preempted()
5050 * The vCPU can be marked preempted if and only if the VM-Exit was on in kvm_steal_time_set_preempted()
5054 * preempted if and only if the VM-Exit was due to a host interrupt. in kvm_steal_time_set_preempted()
5056 if (!vcpu->arch.at_instruction_boundary) { in kvm_steal_time_set_preempted()
5057 vcpu->stat.preemption_other++; in kvm_steal_time_set_preempted()
5061 vcpu->stat.preemption_reported++; in kvm_steal_time_set_preempted()
5062 if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED)) in kvm_steal_time_set_preempted()
5065 if (vcpu->arch.st.preempted) in kvm_steal_time_set_preempted()
5069 if (unlikely(current->mm != vcpu->kvm->mm)) in kvm_steal_time_set_preempted()
5072 slots = kvm_memslots(vcpu->kvm); in kvm_steal_time_set_preempted()
5074 if (unlikely(slots->generation != ghc->generation || in kvm_steal_time_set_preempted()
5075 gpa != ghc->gpa || in kvm_steal_time_set_preempted()
5076 kvm_is_error_hva(ghc->hva) || !ghc->memslot)) in kvm_steal_time_set_preempted()
5079 st = (struct kvm_steal_time __user *)ghc->hva; in kvm_steal_time_set_preempted()
5080 BUILD_BUG_ON(sizeof(st->preempted) != sizeof(preempted)); in kvm_steal_time_set_preempted()
5082 if (!copy_to_user_nofault(&st->preempted, &preempted, sizeof(preempted))) in kvm_steal_time_set_preempted()
5083 vcpu->arch.st.preempted = KVM_VCPU_PREEMPTED; in kvm_steal_time_set_preempted()
5085 mark_page_dirty_in_slot(vcpu->kvm, ghc->memslot, gpa_to_gfn(ghc->gpa)); in kvm_steal_time_set_preempted()
5092 if (vcpu->preempted) { in kvm_arch_vcpu_put()
5094 * Assume protected guests are in-kernel. Inefficient yielding in kvm_arch_vcpu_put()
5098 vcpu->arch.preempted_in_kernel = vcpu->arch.guest_state_protected || in kvm_arch_vcpu_put()
5105 idx = srcu_read_lock(&vcpu->kvm->srcu); in kvm_arch_vcpu_put()
5106 if (kvm_xen_msr_enabled(vcpu->kvm)) in kvm_arch_vcpu_put()
5110 srcu_read_unlock(&vcpu->kvm->srcu, idx); in kvm_arch_vcpu_put()
5114 vcpu->arch.last_host_tsc = rdtsc(); in kvm_arch_vcpu_put()
5161 * instruction boundary and with no events half-injected. in kvm_vcpu_ready_for_interrupt_injection()
5172 if (irq->irq >= KVM_NR_INTERRUPTS) in kvm_vcpu_ioctl_interrupt()
5173 return -EINVAL; in kvm_vcpu_ioctl_interrupt()
5175 if (!irqchip_in_kernel(vcpu->kvm)) { in kvm_vcpu_ioctl_interrupt()
5176 kvm_queue_interrupt(vcpu, irq->irq, false); in kvm_vcpu_ioctl_interrupt()
5182 * With in-kernel LAPIC, we only use this to inject EXTINT, so in kvm_vcpu_ioctl_interrupt()
5183 * fail for in-kernel 8259. in kvm_vcpu_ioctl_interrupt()
5185 if (pic_in_kernel(vcpu->kvm)) in kvm_vcpu_ioctl_interrupt()
5186 return -ENXIO; in kvm_vcpu_ioctl_interrupt()
5188 if (vcpu->arch.pending_external_vector != -1) in kvm_vcpu_ioctl_interrupt()
5189 return -EEXIST; in kvm_vcpu_ioctl_interrupt()
5191 vcpu->arch.pending_external_vector = irq->irq; in kvm_vcpu_ioctl_interrupt()
5206 if (tac->flags) in vcpu_ioctl_tpr_access_reporting()
5207 return -EINVAL; in vcpu_ioctl_tpr_access_reporting()
5208 vcpu->arch.tpr_access_reporting = !!tac->enabled; in vcpu_ioctl_tpr_access_reporting()
5218 r = -EINVAL; in kvm_vcpu_ioctl_x86_setup_mce()
5224 vcpu->arch.mcg_cap = mcg_cap; in kvm_vcpu_ioctl_x86_setup_mce()
5227 vcpu->arch.mcg_ctl = ~(u64)0; in kvm_vcpu_ioctl_x86_setup_mce()
5230 vcpu->arch.mce_banks[bank*4] = ~(u64)0; in kvm_vcpu_ioctl_x86_setup_mce()
5232 vcpu->arch.mci_ctl2_banks[bank] = 0; in kvm_vcpu_ioctl_x86_setup_mce()
5245 * - none of the bits for Machine Check Exceptions are set
5246 * - both the VAL (valid) and UC (uncorrectable) bits are set
5247 * MCI_STATUS_PCC - Processor Context Corrupted
5248 * MCI_STATUS_S - Signaled as a Machine Check Exception
5249 * MCI_STATUS_AR - Software recoverable Action Required
5253 return !mce->mcg_status && in is_ucna()
5254 !(mce->status & (MCI_STATUS_PCC | MCI_STATUS_S | MCI_STATUS_AR)) && in is_ucna()
5255 (mce->status & MCI_STATUS_VAL) && in is_ucna()
5256 (mce->status & MCI_STATUS_UC); in is_ucna()
5261 u64 mcg_cap = vcpu->arch.mcg_cap; in kvm_vcpu_x86_set_ucna()
5263 banks[1] = mce->status; in kvm_vcpu_x86_set_ucna()
5264 banks[2] = mce->addr; in kvm_vcpu_x86_set_ucna()
5265 banks[3] = mce->misc; in kvm_vcpu_x86_set_ucna()
5266 vcpu->arch.mcg_status = mce->mcg_status; in kvm_vcpu_x86_set_ucna()
5269 !(vcpu->arch.mci_ctl2_banks[mce->bank] & MCI_CTL2_CMCI_EN)) in kvm_vcpu_x86_set_ucna()
5273 kvm_apic_local_deliver(vcpu->arch.apic, APIC_LVTCMCI); in kvm_vcpu_x86_set_ucna()
5281 u64 mcg_cap = vcpu->arch.mcg_cap; in kvm_vcpu_ioctl_x86_set_mce()
5283 u64 *banks = vcpu->arch.mce_banks; in kvm_vcpu_ioctl_x86_set_mce()
5285 if (mce->bank >= bank_num || !(mce->status & MCI_STATUS_VAL)) in kvm_vcpu_ioctl_x86_set_mce()
5286 return -EINVAL; in kvm_vcpu_ioctl_x86_set_mce()
5288 banks += array_index_nospec(4 * mce->bank, 4 * bank_num); in kvm_vcpu_ioctl_x86_set_mce()
5297 if ((mce->status & MCI_STATUS_UC) && (mcg_cap & MCG_CTL_P) && in kvm_vcpu_ioctl_x86_set_mce()
5298 vcpu->arch.mcg_ctl != ~(u64)0) in kvm_vcpu_ioctl_x86_set_mce()
5304 if ((mce->status & MCI_STATUS_UC) && banks[0] != ~(u64)0) in kvm_vcpu_ioctl_x86_set_mce()
5306 if (mce->status & MCI_STATUS_UC) { in kvm_vcpu_ioctl_x86_set_mce()
5307 if ((vcpu->arch.mcg_status & MCG_STATUS_MCIP) || in kvm_vcpu_ioctl_x86_set_mce()
5313 mce->status |= MCI_STATUS_OVER; in kvm_vcpu_ioctl_x86_set_mce()
5314 banks[2] = mce->addr; in kvm_vcpu_ioctl_x86_set_mce()
5315 banks[3] = mce->misc; in kvm_vcpu_ioctl_x86_set_mce()
5316 vcpu->arch.mcg_status = mce->mcg_status; in kvm_vcpu_ioctl_x86_set_mce()
5317 banks[1] = mce->status; in kvm_vcpu_ioctl_x86_set_mce()
5322 mce->status |= MCI_STATUS_OVER; in kvm_vcpu_ioctl_x86_set_mce()
5323 banks[2] = mce->addr; in kvm_vcpu_ioctl_x86_set_mce()
5324 banks[3] = mce->misc; in kvm_vcpu_ioctl_x86_set_mce()
5325 banks[1] = mce->status; in kvm_vcpu_ioctl_x86_set_mce()
5346 * non-exiting _injected_ exception, and a pending exiting exception. in kvm_vcpu_ioctl_x86_get_vcpu_events()
5347 * In that case, ignore the VM-Exiting exception as it's an extension in kvm_vcpu_ioctl_x86_get_vcpu_events()
5350 if (vcpu->arch.exception_vmexit.pending && in kvm_vcpu_ioctl_x86_get_vcpu_events()
5351 !vcpu->arch.exception.pending && in kvm_vcpu_ioctl_x86_get_vcpu_events()
5352 !vcpu->arch.exception.injected) in kvm_vcpu_ioctl_x86_get_vcpu_events()
5353 ex = &vcpu->arch.exception_vmexit; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5355 ex = &vcpu->arch.exception; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5360 * intercepts #PF, ditto for DR6 and #DBs. If the per-VM capability, in kvm_vcpu_ioctl_x86_get_vcpu_events()
5365 if (!vcpu->kvm->arch.exception_payload_enabled && in kvm_vcpu_ioctl_x86_get_vcpu_events()
5366 ex->pending && ex->has_payload) in kvm_vcpu_ioctl_x86_get_vcpu_events()
5377 if (!kvm_exception_is_soft(ex->vector)) { in kvm_vcpu_ioctl_x86_get_vcpu_events()
5378 events->exception.injected = ex->injected; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5379 events->exception.pending = ex->pending; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5385 if (!vcpu->kvm->arch.exception_payload_enabled) in kvm_vcpu_ioctl_x86_get_vcpu_events()
5386 events->exception.injected |= ex->pending; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5388 events->exception.nr = ex->vector; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5389 events->exception.has_error_code = ex->has_error_code; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5390 events->exception.error_code = ex->error_code; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5391 events->exception_has_payload = ex->has_payload; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5392 events->exception_payload = ex->payload; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5394 events->interrupt.injected = in kvm_vcpu_ioctl_x86_get_vcpu_events()
5395 vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5396 events->interrupt.nr = vcpu->arch.interrupt.nr; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5397 events->interrupt.shadow = kvm_x86_call(get_interrupt_shadow)(vcpu); in kvm_vcpu_ioctl_x86_get_vcpu_events()
5399 events->nmi.injected = vcpu->arch.nmi_injected; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5400 events->nmi.pending = kvm_get_nr_pending_nmis(vcpu); in kvm_vcpu_ioctl_x86_get_vcpu_events()
5401 events->nmi.masked = kvm_x86_call(get_nmi_mask)(vcpu); in kvm_vcpu_ioctl_x86_get_vcpu_events()
5403 /* events->sipi_vector is never valid when reporting to user space */ in kvm_vcpu_ioctl_x86_get_vcpu_events()
5406 events->smi.smm = is_smm(vcpu); in kvm_vcpu_ioctl_x86_get_vcpu_events()
5407 events->smi.pending = vcpu->arch.smi_pending; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5408 events->smi.smm_inside_nmi = in kvm_vcpu_ioctl_x86_get_vcpu_events()
5409 !!(vcpu->arch.hflags & HF_SMM_INSIDE_NMI_MASK); in kvm_vcpu_ioctl_x86_get_vcpu_events()
5411 events->smi.latched_init = kvm_lapic_latched_init(vcpu); in kvm_vcpu_ioctl_x86_get_vcpu_events()
5413 events->flags = (KVM_VCPUEVENT_VALID_NMI_PENDING in kvm_vcpu_ioctl_x86_get_vcpu_events()
5416 if (vcpu->kvm->arch.exception_payload_enabled) in kvm_vcpu_ioctl_x86_get_vcpu_events()
5417 events->flags |= KVM_VCPUEVENT_VALID_PAYLOAD; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5418 if (vcpu->kvm->arch.triple_fault_event) { in kvm_vcpu_ioctl_x86_get_vcpu_events()
5419 events->triple_fault.pending = kvm_test_request(KVM_REQ_TRIPLE_FAULT, vcpu); in kvm_vcpu_ioctl_x86_get_vcpu_events()
5420 events->flags |= KVM_VCPUEVENT_VALID_TRIPLE_FAULT; in kvm_vcpu_ioctl_x86_get_vcpu_events()
5427 if (events->flags & ~(KVM_VCPUEVENT_VALID_NMI_PENDING in kvm_vcpu_ioctl_x86_set_vcpu_events()
5433 return -EINVAL; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5435 if (events->flags & KVM_VCPUEVENT_VALID_PAYLOAD) { in kvm_vcpu_ioctl_x86_set_vcpu_events()
5436 if (!vcpu->kvm->arch.exception_payload_enabled) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5437 return -EINVAL; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5438 if (events->exception.pending) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5439 events->exception.injected = 0; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5441 events->exception_has_payload = 0; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5443 events->exception.pending = 0; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5444 events->exception_has_payload = 0; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5447 if ((events->exception.injected || events->exception.pending) && in kvm_vcpu_ioctl_x86_set_vcpu_events()
5448 (events->exception.nr > 31 || events->exception.nr == NMI_VECTOR)) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5449 return -EINVAL; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5452 if (events->flags & KVM_VCPUEVENT_VALID_SMM && in kvm_vcpu_ioctl_x86_set_vcpu_events()
5453 (events->smi.smm || events->smi.pending) && in kvm_vcpu_ioctl_x86_set_vcpu_events()
5454 vcpu->arch.mp_state == KVM_MP_STATE_INIT_RECEIVED) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5455 return -EINVAL; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5461 * morph the exception to a VM-Exit if appropriate. Do this only for in kvm_vcpu_ioctl_x86_set_vcpu_events()
5462 * pending exceptions, already-injected exceptions are not subject to in kvm_vcpu_ioctl_x86_set_vcpu_events()
5465 * pending exception, which in turn may cause a spurious VM-Exit. in kvm_vcpu_ioctl_x86_set_vcpu_events()
5467 vcpu->arch.exception_from_userspace = events->exception.pending; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5469 vcpu->arch.exception_vmexit.pending = false; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5471 vcpu->arch.exception.injected = events->exception.injected; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5472 vcpu->arch.exception.pending = events->exception.pending; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5473 vcpu->arch.exception.vector = events->exception.nr; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5474 vcpu->arch.exception.has_error_code = events->exception.has_error_code; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5475 vcpu->arch.exception.error_code = events->exception.error_code; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5476 vcpu->arch.exception.has_payload = events->exception_has_payload; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5477 vcpu->arch.exception.payload = events->exception_payload; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5479 vcpu->arch.interrupt.injected = events->interrupt.injected; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5480 vcpu->arch.interrupt.nr = events->interrupt.nr; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5481 vcpu->arch.interrupt.soft = events->interrupt.soft; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5482 if (events->flags & KVM_VCPUEVENT_VALID_SHADOW) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5484 events->interrupt.shadow); in kvm_vcpu_ioctl_x86_set_vcpu_events()
5486 vcpu->arch.nmi_injected = events->nmi.injected; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5487 if (events->flags & KVM_VCPUEVENT_VALID_NMI_PENDING) { in kvm_vcpu_ioctl_x86_set_vcpu_events()
5488 vcpu->arch.nmi_pending = 0; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5489 atomic_set(&vcpu->arch.nmi_queued, events->nmi.pending); in kvm_vcpu_ioctl_x86_set_vcpu_events()
5490 if (events->nmi.pending) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5493 kvm_x86_call(set_nmi_mask)(vcpu, events->nmi.masked); in kvm_vcpu_ioctl_x86_set_vcpu_events()
5495 if (events->flags & KVM_VCPUEVENT_VALID_SIPI_VECTOR && in kvm_vcpu_ioctl_x86_set_vcpu_events()
5497 vcpu->arch.apic->sipi_vector = events->sipi_vector; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5499 if (events->flags & KVM_VCPUEVENT_VALID_SMM) { in kvm_vcpu_ioctl_x86_set_vcpu_events()
5501 if (!!(vcpu->arch.hflags & HF_SMM_MASK) != events->smi.smm) { in kvm_vcpu_ioctl_x86_set_vcpu_events()
5503 kvm_smm_changed(vcpu, events->smi.smm); in kvm_vcpu_ioctl_x86_set_vcpu_events()
5506 vcpu->arch.smi_pending = events->smi.pending; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5508 if (events->smi.smm) { in kvm_vcpu_ioctl_x86_set_vcpu_events()
5509 if (events->smi.smm_inside_nmi) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5510 vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5512 vcpu->arch.hflags &= ~HF_SMM_INSIDE_NMI_MASK; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5516 if (events->smi.smm || events->smi.pending || in kvm_vcpu_ioctl_x86_set_vcpu_events()
5517 events->smi.smm_inside_nmi) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5518 return -EINVAL; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5522 if (events->smi.latched_init) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5523 set_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events); in kvm_vcpu_ioctl_x86_set_vcpu_events()
5525 clear_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events); in kvm_vcpu_ioctl_x86_set_vcpu_events()
5529 if (events->flags & KVM_VCPUEVENT_VALID_TRIPLE_FAULT) { in kvm_vcpu_ioctl_x86_set_vcpu_events()
5530 if (!vcpu->kvm->arch.triple_fault_event) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5531 return -EINVAL; in kvm_vcpu_ioctl_x86_set_vcpu_events()
5532 if (events->triple_fault.pending) in kvm_vcpu_ioctl_x86_set_vcpu_events()
5548 if (vcpu->kvm->arch.has_protected_state && in kvm_vcpu_ioctl_x86_get_debugregs()
5549 vcpu->arch.guest_state_protected) in kvm_vcpu_ioctl_x86_get_debugregs()
5550 return -EINVAL; in kvm_vcpu_ioctl_x86_get_debugregs()
5554 BUILD_BUG_ON(ARRAY_SIZE(vcpu->arch.db) != ARRAY_SIZE(dbgregs->db)); in kvm_vcpu_ioctl_x86_get_debugregs()
5555 for (i = 0; i < ARRAY_SIZE(vcpu->arch.db); i++) in kvm_vcpu_ioctl_x86_get_debugregs()
5556 dbgregs->db[i] = vcpu->arch.db[i]; in kvm_vcpu_ioctl_x86_get_debugregs()
5558 dbgregs->dr6 = vcpu->arch.dr6; in kvm_vcpu_ioctl_x86_get_debugregs()
5559 dbgregs->dr7 = vcpu->arch.dr7; in kvm_vcpu_ioctl_x86_get_debugregs()
5568 if (vcpu->kvm->arch.has_protected_state && in kvm_vcpu_ioctl_x86_set_debugregs()
5569 vcpu->arch.guest_state_protected) in kvm_vcpu_ioctl_x86_set_debugregs()
5570 return -EINVAL; in kvm_vcpu_ioctl_x86_set_debugregs()
5572 if (dbgregs->flags) in kvm_vcpu_ioctl_x86_set_debugregs()
5573 return -EINVAL; in kvm_vcpu_ioctl_x86_set_debugregs()
5575 if (!kvm_dr6_valid(dbgregs->dr6)) in kvm_vcpu_ioctl_x86_set_debugregs()
5576 return -EINVAL; in kvm_vcpu_ioctl_x86_set_debugregs()
5577 if (!kvm_dr7_valid(dbgregs->dr7)) in kvm_vcpu_ioctl_x86_set_debugregs()
5578 return -EINVAL; in kvm_vcpu_ioctl_x86_set_debugregs()
5580 for (i = 0; i < ARRAY_SIZE(vcpu->arch.db); i++) in kvm_vcpu_ioctl_x86_set_debugregs()
5581 vcpu->arch.db[i] = dbgregs->db[i]; in kvm_vcpu_ioctl_x86_set_debugregs()
5584 vcpu->arch.dr6 = dbgregs->dr6; in kvm_vcpu_ioctl_x86_set_debugregs()
5585 vcpu->arch.dr7 = dbgregs->dr7; in kvm_vcpu_ioctl_x86_set_debugregs()
5607 u64 supported_xcr0 = vcpu->arch.guest_supported_xcr0 | in kvm_vcpu_ioctl_x86_get_xsave2()
5610 if (fpstate_is_confidential(&vcpu->arch.guest_fpu)) in kvm_vcpu_ioctl_x86_get_xsave2()
5611 return vcpu->kvm->arch.has_protected_state ? -EINVAL : 0; in kvm_vcpu_ioctl_x86_get_xsave2()
5613 fpu_copy_guest_fpstate_to_uabi(&vcpu->arch.guest_fpu, state, size, in kvm_vcpu_ioctl_x86_get_xsave2()
5614 supported_xcr0, vcpu->arch.pkru); in kvm_vcpu_ioctl_x86_get_xsave2()
5621 return kvm_vcpu_ioctl_x86_get_xsave2(vcpu, (void *)guest_xsave->region, in kvm_vcpu_ioctl_x86_get_xsave()
5622 sizeof(guest_xsave->region)); in kvm_vcpu_ioctl_x86_get_xsave()
5628 if (fpstate_is_confidential(&vcpu->arch.guest_fpu)) in kvm_vcpu_ioctl_x86_set_xsave()
5629 return vcpu->kvm->arch.has_protected_state ? -EINVAL : 0; in kvm_vcpu_ioctl_x86_set_xsave()
5631 return fpu_copy_uabi_to_guest_fpstate(&vcpu->arch.guest_fpu, in kvm_vcpu_ioctl_x86_set_xsave()
5632 guest_xsave->region, in kvm_vcpu_ioctl_x86_set_xsave()
5634 &vcpu->arch.pkru); in kvm_vcpu_ioctl_x86_set_xsave()
5640 if (vcpu->kvm->arch.has_protected_state && in kvm_vcpu_ioctl_x86_get_xcrs()
5641 vcpu->arch.guest_state_protected) in kvm_vcpu_ioctl_x86_get_xcrs()
5642 return -EINVAL; in kvm_vcpu_ioctl_x86_get_xcrs()
5645 guest_xcrs->nr_xcrs = 0; in kvm_vcpu_ioctl_x86_get_xcrs()
5649 guest_xcrs->nr_xcrs = 1; in kvm_vcpu_ioctl_x86_get_xcrs()
5650 guest_xcrs->flags = 0; in kvm_vcpu_ioctl_x86_get_xcrs()
5651 guest_xcrs->xcrs[0].xcr = XCR_XFEATURE_ENABLED_MASK; in kvm_vcpu_ioctl_x86_get_xcrs()
5652 guest_xcrs->xcrs[0].value = vcpu->arch.xcr0; in kvm_vcpu_ioctl_x86_get_xcrs()
5661 if (vcpu->kvm->arch.has_protected_state && in kvm_vcpu_ioctl_x86_set_xcrs()
5662 vcpu->arch.guest_state_protected) in kvm_vcpu_ioctl_x86_set_xcrs()
5663 return -EINVAL; in kvm_vcpu_ioctl_x86_set_xcrs()
5666 return -EINVAL; in kvm_vcpu_ioctl_x86_set_xcrs()
5668 if (guest_xcrs->nr_xcrs > KVM_MAX_XCRS || guest_xcrs->flags) in kvm_vcpu_ioctl_x86_set_xcrs()
5669 return -EINVAL; in kvm_vcpu_ioctl_x86_set_xcrs()
5671 for (i = 0; i < guest_xcrs->nr_xcrs; i++) in kvm_vcpu_ioctl_x86_set_xcrs()
5673 if (guest_xcrs->xcrs[i].xcr == XCR_XFEATURE_ENABLED_MASK) { in kvm_vcpu_ioctl_x86_set_xcrs()
5675 guest_xcrs->xcrs[i].value); in kvm_vcpu_ioctl_x86_set_xcrs()
5679 r = -EINVAL; in kvm_vcpu_ioctl_x86_set_xcrs()
5691 if (!vcpu->arch.pv_time.active) in kvm_set_guest_paused()
5692 return -EINVAL; in kvm_set_guest_paused()
5693 vcpu->arch.pvclock_set_guest_stopped_request = true; in kvm_set_guest_paused()
5703 switch (attr->attr) { in kvm_arch_tsc_has_attr()
5708 r = -ENXIO; in kvm_arch_tsc_has_attr()
5717 u64 __user *uaddr = u64_to_user_ptr(attr->addr); in kvm_arch_tsc_get_attr()
5720 switch (attr->attr) { in kvm_arch_tsc_get_attr()
5722 r = -EFAULT; in kvm_arch_tsc_get_attr()
5723 if (put_user(vcpu->arch.l1_tsc_offset, uaddr)) in kvm_arch_tsc_get_attr()
5728 r = -ENXIO; in kvm_arch_tsc_get_attr()
5737 u64 __user *uaddr = u64_to_user_ptr(attr->addr); in kvm_arch_tsc_set_attr()
5738 struct kvm *kvm = vcpu->kvm; in kvm_arch_tsc_set_attr()
5741 switch (attr->attr) { in kvm_arch_tsc_set_attr()
5747 r = -EFAULT; in kvm_arch_tsc_set_attr()
5751 raw_spin_lock_irqsave(&kvm->arch.tsc_write_lock, flags); in kvm_arch_tsc_set_attr()
5753 matched = (vcpu->arch.virtual_tsc_khz && in kvm_arch_tsc_set_attr()
5754 kvm->arch.last_tsc_khz == vcpu->arch.virtual_tsc_khz && in kvm_arch_tsc_set_attr()
5755 kvm->arch.last_tsc_offset == offset); in kvm_arch_tsc_set_attr()
5757 tsc = kvm_scale_tsc(rdtsc(), vcpu->arch.l1_tsc_scaling_ratio) + offset; in kvm_arch_tsc_set_attr()
5761 raw_spin_unlock_irqrestore(&kvm->arch.tsc_write_lock, flags); in kvm_arch_tsc_set_attr()
5767 r = -ENXIO; in kvm_arch_tsc_set_attr()
5781 return -EFAULT; in kvm_vcpu_ioctl_device_attr()
5784 return -ENXIO; in kvm_vcpu_ioctl_device_attr()
5804 if (cap->flags) in kvm_vcpu_ioctl_enable_cap()
5805 return -EINVAL; in kvm_vcpu_ioctl_enable_cap()
5807 switch (cap->cap) { in kvm_vcpu_ioctl_enable_cap()
5810 if (cap->args[0]) in kvm_vcpu_ioctl_enable_cap()
5811 return -EINVAL; in kvm_vcpu_ioctl_enable_cap()
5815 if (!irqchip_in_kernel(vcpu->kvm)) in kvm_vcpu_ioctl_enable_cap()
5816 return -EINVAL; in kvm_vcpu_ioctl_enable_cap()
5817 return kvm_hv_activate_synic(vcpu, cap->cap == in kvm_vcpu_ioctl_enable_cap()
5825 if (!kvm_x86_ops.nested_ops->enable_evmcs) in kvm_vcpu_ioctl_enable_cap()
5826 return -ENOTTY; in kvm_vcpu_ioctl_enable_cap()
5827 r = kvm_x86_ops.nested_ops->enable_evmcs(vcpu, &vmcs_version); in kvm_vcpu_ioctl_enable_cap()
5829 user_ptr = (void __user *)(uintptr_t)cap->args[0]; in kvm_vcpu_ioctl_enable_cap()
5832 r = -EFAULT; in kvm_vcpu_ioctl_enable_cap()
5838 return -ENOTTY; in kvm_vcpu_ioctl_enable_cap()
5843 return kvm_hv_set_enforce_cpuid(vcpu, cap->args[0]); in kvm_vcpu_ioctl_enable_cap()
5847 vcpu->arch.pv_cpuid.enforce = cap->args[0]; in kvm_vcpu_ioctl_enable_cap()
5850 return -EINVAL; in kvm_vcpu_ioctl_enable_cap()
5857 struct kvm_vcpu *vcpu = filp->private_data; in kvm_arch_vcpu_ioctl()
5873 r = -EINVAL; in kvm_arch_vcpu_ioctl()
5878 r = -ENOMEM; in kvm_arch_vcpu_ioctl()
5884 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5891 r = -EINVAL; in kvm_arch_vcpu_ioctl()
5906 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5924 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5927 r = kvm_vcpu_ioctl_set_cpuid(vcpu, &cpuid, cpuid_arg->entries); in kvm_arch_vcpu_ioctl()
5934 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5938 cpuid_arg->entries); in kvm_arch_vcpu_ioctl()
5945 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5949 cpuid_arg->entries); in kvm_arch_vcpu_ioctl()
5952 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5959 int idx = srcu_read_lock(&vcpu->kvm->srcu); in kvm_arch_vcpu_ioctl()
5961 srcu_read_unlock(&vcpu->kvm->srcu, idx); in kvm_arch_vcpu_ioctl()
5965 int idx = srcu_read_lock(&vcpu->kvm->srcu); in kvm_arch_vcpu_ioctl()
5967 srcu_read_unlock(&vcpu->kvm->srcu, idx); in kvm_arch_vcpu_ioctl()
5973 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5979 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5989 r = -EINVAL; in kvm_arch_vcpu_ioctl()
5992 r = -EFAULT; in kvm_arch_vcpu_ioctl()
5995 idx = srcu_read_lock(&vcpu->kvm->srcu); in kvm_arch_vcpu_ioctl()
5997 srcu_read_unlock(&vcpu->kvm->srcu, idx); in kvm_arch_vcpu_ioctl()
6003 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6012 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6023 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6032 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6048 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6058 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6067 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6068 if (vcpu->arch.guest_fpu.uabi_size > sizeof(struct kvm_xsave)) in kvm_arch_vcpu_ioctl()
6072 r = -ENOMEM; in kvm_arch_vcpu_ioctl()
6080 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6087 int size = vcpu->arch.guest_fpu.uabi_size; in kvm_arch_vcpu_ioctl()
6100 int size = vcpu->arch.guest_fpu.uabi_size; in kvm_arch_vcpu_ioctl()
6103 r = -ENOMEM; in kvm_arch_vcpu_ioctl()
6111 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6121 r = -ENOMEM; in kvm_arch_vcpu_ioctl()
6129 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6149 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6165 r = vcpu->arch.virtual_tsc_khz; in kvm_arch_vcpu_ioctl()
6175 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6185 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6186 if (!kvm_x86_ops.nested_ops->get_state) in kvm_arch_vcpu_ioctl()
6189 BUILD_BUG_ON(sizeof(user_data_size) != sizeof(user_kvm_nested_state->size)); in kvm_arch_vcpu_ioctl()
6190 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6191 if (get_user(user_data_size, &user_kvm_nested_state->size)) in kvm_arch_vcpu_ioctl()
6194 r = kvm_x86_ops.nested_ops->get_state(vcpu, user_kvm_nested_state, in kvm_arch_vcpu_ioctl()
6200 if (put_user(r, &user_kvm_nested_state->size)) in kvm_arch_vcpu_ioctl()
6201 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6203 r = -E2BIG; in kvm_arch_vcpu_ioctl()
6215 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6216 if (!kvm_x86_ops.nested_ops->set_state) in kvm_arch_vcpu_ioctl()
6219 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6223 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6238 idx = srcu_read_lock(&vcpu->kvm->srcu); in kvm_arch_vcpu_ioctl()
6239 r = kvm_x86_ops.nested_ops->set_state(vcpu, user_kvm_nested_state, &kvm_state); in kvm_arch_vcpu_ioctl()
6240 srcu_read_unlock(&vcpu->kvm->srcu, idx); in kvm_arch_vcpu_ioctl()
6252 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6257 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6263 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6271 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6272 if (vcpu->kvm->arch.has_protected_state && in kvm_arch_vcpu_ioctl()
6273 vcpu->arch.guest_state_protected) in kvm_arch_vcpu_ioctl()
6277 r = -ENOMEM; in kvm_arch_vcpu_ioctl()
6281 r = -EFAULT; in kvm_arch_vcpu_ioctl()
6288 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6289 if (vcpu->kvm->arch.has_protected_state && in kvm_arch_vcpu_ioctl()
6290 vcpu->arch.guest_state_protected) in kvm_arch_vcpu_ioctl()
6308 r = -EINVAL; in kvm_arch_vcpu_ioctl()
6326 if (addr > (unsigned int)(-3 * PAGE_SIZE)) in kvm_vm_ioctl_set_tss_addr()
6327 return -EINVAL; in kvm_vm_ioctl_set_tss_addr()
6342 return -EINVAL; in kvm_vm_ioctl_set_nr_mmu_pages()
6344 mutex_lock(&kvm->slots_lock); in kvm_vm_ioctl_set_nr_mmu_pages()
6347 kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages; in kvm_vm_ioctl_set_nr_mmu_pages()
6349 mutex_unlock(&kvm->slots_lock); in kvm_vm_ioctl_set_nr_mmu_pages()
6355 struct kvm_pic *pic = kvm->arch.vpic; in kvm_vm_ioctl_get_irqchip()
6359 switch (chip->chip_id) { in kvm_vm_ioctl_get_irqchip()
6361 memcpy(&chip->chip.pic, &pic->pics[0], in kvm_vm_ioctl_get_irqchip()
6365 memcpy(&chip->chip.pic, &pic->pics[1], in kvm_vm_ioctl_get_irqchip()
6369 kvm_get_ioapic(kvm, &chip->chip.ioapic); in kvm_vm_ioctl_get_irqchip()
6372 r = -EINVAL; in kvm_vm_ioctl_get_irqchip()
6380 struct kvm_pic *pic = kvm->arch.vpic; in kvm_vm_ioctl_set_irqchip()
6384 switch (chip->chip_id) { in kvm_vm_ioctl_set_irqchip()
6386 spin_lock(&pic->lock); in kvm_vm_ioctl_set_irqchip()
6387 memcpy(&pic->pics[0], &chip->chip.pic, in kvm_vm_ioctl_set_irqchip()
6389 spin_unlock(&pic->lock); in kvm_vm_ioctl_set_irqchip()
6392 spin_lock(&pic->lock); in kvm_vm_ioctl_set_irqchip()
6393 memcpy(&pic->pics[1], &chip->chip.pic, in kvm_vm_ioctl_set_irqchip()
6395 spin_unlock(&pic->lock); in kvm_vm_ioctl_set_irqchip()
6398 kvm_set_ioapic(kvm, &chip->chip.ioapic); in kvm_vm_ioctl_set_irqchip()
6401 r = -EINVAL; in kvm_vm_ioctl_set_irqchip()
6410 struct kvm_kpit_state *kps = &kvm->arch.vpit->pit_state; in kvm_vm_ioctl_get_pit()
6412 BUILD_BUG_ON(sizeof(*ps) != sizeof(kps->channels)); in kvm_vm_ioctl_get_pit()
6414 mutex_lock(&kps->lock); in kvm_vm_ioctl_get_pit()
6415 memcpy(ps, &kps->channels, sizeof(*ps)); in kvm_vm_ioctl_get_pit()
6416 mutex_unlock(&kps->lock); in kvm_vm_ioctl_get_pit()
6423 struct kvm_pit *pit = kvm->arch.vpit; in kvm_vm_ioctl_set_pit()
6425 mutex_lock(&pit->pit_state.lock); in kvm_vm_ioctl_set_pit()
6426 memcpy(&pit->pit_state.channels, ps, sizeof(*ps)); in kvm_vm_ioctl_set_pit()
6428 kvm_pit_load_count(pit, i, ps->channels[i].count, 0); in kvm_vm_ioctl_set_pit()
6429 mutex_unlock(&pit->pit_state.lock); in kvm_vm_ioctl_set_pit()
6435 mutex_lock(&kvm->arch.vpit->pit_state.lock); in kvm_vm_ioctl_get_pit2()
6436 memcpy(ps->channels, &kvm->arch.vpit->pit_state.channels, in kvm_vm_ioctl_get_pit2()
6437 sizeof(ps->channels)); in kvm_vm_ioctl_get_pit2()
6438 ps->flags = kvm->arch.vpit->pit_state.flags; in kvm_vm_ioctl_get_pit2()
6439 mutex_unlock(&kvm->arch.vpit->pit_state.lock); in kvm_vm_ioctl_get_pit2()
6440 memset(&ps->reserved, 0, sizeof(ps->reserved)); in kvm_vm_ioctl_get_pit2()
6449 struct kvm_pit *pit = kvm->arch.vpit; in kvm_vm_ioctl_set_pit2()
6451 mutex_lock(&pit->pit_state.lock); in kvm_vm_ioctl_set_pit2()
6452 prev_legacy = pit->pit_state.flags & KVM_PIT_FLAGS_HPET_LEGACY; in kvm_vm_ioctl_set_pit2()
6453 cur_legacy = ps->flags & KVM_PIT_FLAGS_HPET_LEGACY; in kvm_vm_ioctl_set_pit2()
6456 memcpy(&pit->pit_state.channels, &ps->channels, in kvm_vm_ioctl_set_pit2()
6457 sizeof(pit->pit_state.channels)); in kvm_vm_ioctl_set_pit2()
6458 pit->pit_state.flags = ps->flags; in kvm_vm_ioctl_set_pit2()
6460 kvm_pit_load_count(pit, i, pit->pit_state.channels[i].count, in kvm_vm_ioctl_set_pit2()
6462 mutex_unlock(&pit->pit_state.lock); in kvm_vm_ioctl_set_pit2()
6469 struct kvm_pit *pit = kvm->arch.vpit; in kvm_vm_ioctl_reinject()
6471 /* pit->pit_state.lock was overloaded to prevent userspace from getting in kvm_vm_ioctl_reinject()
6475 mutex_lock(&pit->pit_state.lock); in kvm_vm_ioctl_reinject()
6476 kvm_pit_set_reinject(pit, control->pit_reinject); in kvm_vm_ioctl_reinject()
6477 mutex_unlock(&pit->pit_state.lock); in kvm_vm_ioctl_reinject()
6488 * on all VM-Exits, thus we only need to kick running vCPUs to force a in kvm_arch_sync_dirty_log()
6489 * VM-Exit. in kvm_arch_sync_dirty_log()
6505 return -ENXIO; in kvm_vm_ioctl_irq_line()
6507 irq_event->status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID, in kvm_vm_ioctl_irq_line()
6508 irq_event->irq, irq_event->level, in kvm_vm_ioctl_irq_line()
6518 if (cap->flags) in kvm_vm_ioctl_enable_cap()
6519 return -EINVAL; in kvm_vm_ioctl_enable_cap()
6521 switch (cap->cap) { in kvm_vm_ioctl_enable_cap()
6523 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6524 if (cap->args[0] & ~KVM_X86_VALID_QUIRKS) in kvm_vm_ioctl_enable_cap()
6528 kvm->arch.disabled_quirks = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6532 mutex_lock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6533 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6534 if (cap->args[0] > MAX_NR_RESERVED_IOAPIC_PINS) in kvm_vm_ioctl_enable_cap()
6536 r = -EEXIST; in kvm_vm_ioctl_enable_cap()
6539 if (kvm->created_vcpus) in kvm_vm_ioctl_enable_cap()
6543 kvm->arch.irqchip_mode = KVM_IRQCHIP_SPLIT; in kvm_vm_ioctl_enable_cap()
6544 kvm->arch.nr_reserved_ioapic_pins = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6548 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6552 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6553 if (cap->args[0] & ~KVM_X2APIC_API_VALID_FLAGS) in kvm_vm_ioctl_enable_cap()
6556 if (cap->args[0] & KVM_X2APIC_API_USE_32BIT_IDS) in kvm_vm_ioctl_enable_cap()
6557 kvm->arch.x2apic_format = true; in kvm_vm_ioctl_enable_cap()
6558 if (cap->args[0] & KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK) in kvm_vm_ioctl_enable_cap()
6559 kvm->arch.x2apic_broadcast_quirk_disabled = true; in kvm_vm_ioctl_enable_cap()
6564 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6565 if (cap->args[0] & ~kvm_get_allowed_disable_exits()) in kvm_vm_ioctl_enable_cap()
6568 mutex_lock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6569 if (kvm->created_vcpus) in kvm_vm_ioctl_enable_cap()
6572 #define SMT_RSB_MSG "This processor is affected by the Cross-Thread Return Predictions vulnerabilit… in kvm_vm_ioctl_enable_cap()
6577 (cap->args[0] & ~KVM_X86_DISABLE_EXITS_PAUSE)) in kvm_vm_ioctl_enable_cap()
6580 if (cap->args[0] & KVM_X86_DISABLE_EXITS_PAUSE) in kvm_vm_ioctl_enable_cap()
6581 kvm->arch.pause_in_guest = true; in kvm_vm_ioctl_enable_cap()
6582 if (cap->args[0] & KVM_X86_DISABLE_EXITS_MWAIT) in kvm_vm_ioctl_enable_cap()
6583 kvm->arch.mwait_in_guest = true; in kvm_vm_ioctl_enable_cap()
6584 if (cap->args[0] & KVM_X86_DISABLE_EXITS_HLT) in kvm_vm_ioctl_enable_cap()
6585 kvm->arch.hlt_in_guest = true; in kvm_vm_ioctl_enable_cap()
6586 if (cap->args[0] & KVM_X86_DISABLE_EXITS_CSTATE) in kvm_vm_ioctl_enable_cap()
6587 kvm->arch.cstate_in_guest = true; in kvm_vm_ioctl_enable_cap()
6590 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6593 kvm->arch.guest_can_read_msr_platform_info = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6597 kvm->arch.exception_payload_enabled = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6601 kvm->arch.triple_fault_event = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6605 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6606 if (cap->args[0] & ~KVM_MSR_EXIT_REASON_VALID_MASK) in kvm_vm_ioctl_enable_cap()
6608 kvm->arch.user_space_msr_mask = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6612 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6613 if (cap->args[0] & ~KVM_BUS_LOCK_DETECTION_VALID_MODE) in kvm_vm_ioctl_enable_cap()
6616 if ((cap->args[0] & KVM_BUS_LOCK_DETECTION_OFF) && in kvm_vm_ioctl_enable_cap()
6617 (cap->args[0] & KVM_BUS_LOCK_DETECTION_EXIT)) in kvm_vm_ioctl_enable_cap()
6621 cap->args[0] & KVM_BUS_LOCK_DETECTION_EXIT) in kvm_vm_ioctl_enable_cap()
6622 kvm->arch.bus_lock_detection_enabled = true; in kvm_vm_ioctl_enable_cap()
6629 r = sgx_set_attribute(&allowed_attributes, cap->args[0]); in kvm_vm_ioctl_enable_cap()
6636 kvm->arch.sgx_provisioning_allowed = true; in kvm_vm_ioctl_enable_cap()
6638 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6643 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6647 r = kvm_x86_call(vm_copy_enc_context_from)(kvm, cap->args[0]); in kvm_vm_ioctl_enable_cap()
6650 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6654 r = kvm_x86_call(vm_move_enc_context_from)(kvm, cap->args[0]); in kvm_vm_ioctl_enable_cap()
6657 if (cap->args[0] & ~KVM_EXIT_HYPERCALL_VALID_MASK) { in kvm_vm_ioctl_enable_cap()
6658 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6661 kvm->arch.hypercall_exit_enabled = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6665 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6666 if (cap->args[0] & ~1) in kvm_vm_ioctl_enable_cap()
6668 kvm->arch.exit_on_emulation_error = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6672 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6673 if (!enable_pmu || (cap->args[0] & ~KVM_CAP_PMU_VALID_MASK)) in kvm_vm_ioctl_enable_cap()
6676 mutex_lock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6677 if (!kvm->created_vcpus) { in kvm_vm_ioctl_enable_cap()
6678 kvm->arch.enable_pmu = !(cap->args[0] & KVM_PMU_CAP_DISABLE); in kvm_vm_ioctl_enable_cap()
6681 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6684 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6685 if (cap->args[0] > KVM_MAX_VCPU_IDS) in kvm_vm_ioctl_enable_cap()
6688 mutex_lock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6689 if (kvm->arch.bsp_vcpu_id > cap->args[0]) { in kvm_vm_ioctl_enable_cap()
6691 } else if (kvm->arch.max_vcpu_ids == cap->args[0]) { in kvm_vm_ioctl_enable_cap()
6693 } else if (!kvm->arch.max_vcpu_ids) { in kvm_vm_ioctl_enable_cap()
6694 kvm->arch.max_vcpu_ids = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6697 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6700 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6701 if ((u32)cap->args[0] & ~KVM_X86_NOTIFY_VMEXIT_VALID_BITS) in kvm_vm_ioctl_enable_cap()
6705 if (!((u32)cap->args[0] & KVM_X86_NOTIFY_VMEXIT_ENABLED)) in kvm_vm_ioctl_enable_cap()
6707 mutex_lock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6708 if (!kvm->created_vcpus) { in kvm_vm_ioctl_enable_cap()
6709 kvm->arch.notify_window = cap->args[0] >> 32; in kvm_vm_ioctl_enable_cap()
6710 kvm->arch.notify_vmexit_flags = (u32)cap->args[0]; in kvm_vm_ioctl_enable_cap()
6713 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6716 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6730 r = -EPERM; in kvm_vm_ioctl_enable_cap()
6734 if (cap->args[0]) in kvm_vm_ioctl_enable_cap()
6737 mutex_lock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6738 if (!kvm->created_vcpus) { in kvm_vm_ioctl_enable_cap()
6739 kvm->arch.disable_nx_huge_pages = true; in kvm_vm_ioctl_enable_cap()
6742 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6745 u64 bus_cycle_ns = cap->args[0]; in kvm_vm_ioctl_enable_cap()
6752 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6758 mutex_lock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6760 r = -ENXIO; in kvm_vm_ioctl_enable_cap()
6761 else if (kvm->created_vcpus) in kvm_vm_ioctl_enable_cap()
6762 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6764 kvm->arch.apic_bus_cycle_ns = bus_cycle_ns; in kvm_vm_ioctl_enable_cap()
6765 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_enable_cap()
6769 r = -EINVAL; in kvm_vm_ioctl_enable_cap()
6783 msr_filter->default_allow = default_allow; in kvm_alloc_msr_filter()
6794 for (i = 0; i < msr_filter->count; i++) in kvm_free_msr_filter()
6795 kfree(msr_filter->ranges[i].bitmap); in kvm_free_msr_filter()
6806 if (!user_range->nmsrs) in kvm_add_msr_filter()
6809 if (user_range->flags & ~KVM_MSR_FILTER_RANGE_VALID_MASK) in kvm_add_msr_filter()
6810 return -EINVAL; in kvm_add_msr_filter()
6812 if (!user_range->flags) in kvm_add_msr_filter()
6813 return -EINVAL; in kvm_add_msr_filter()
6815 bitmap_size = BITS_TO_LONGS(user_range->nmsrs) * sizeof(long); in kvm_add_msr_filter()
6817 return -EINVAL; in kvm_add_msr_filter()
6819 bitmap = memdup_user((__user u8*)user_range->bitmap, bitmap_size); in kvm_add_msr_filter()
6823 msr_filter->ranges[msr_filter->count] = (struct msr_bitmap_range) { in kvm_add_msr_filter()
6824 .flags = user_range->flags, in kvm_add_msr_filter()
6825 .base = user_range->base, in kvm_add_msr_filter()
6826 .nmsrs = user_range->nmsrs, in kvm_add_msr_filter()
6830 msr_filter->count++; in kvm_add_msr_filter()
6843 if (filter->flags & ~KVM_MSR_FILTER_VALID_MASK) in kvm_vm_ioctl_set_msr_filter()
6844 return -EINVAL; in kvm_vm_ioctl_set_msr_filter()
6846 for (i = 0; i < ARRAY_SIZE(filter->ranges); i++) in kvm_vm_ioctl_set_msr_filter()
6847 empty &= !filter->ranges[i].nmsrs; in kvm_vm_ioctl_set_msr_filter()
6849 default_allow = !(filter->flags & KVM_MSR_FILTER_DEFAULT_DENY); in kvm_vm_ioctl_set_msr_filter()
6851 return -EINVAL; in kvm_vm_ioctl_set_msr_filter()
6855 return -ENOMEM; in kvm_vm_ioctl_set_msr_filter()
6857 for (i = 0; i < ARRAY_SIZE(filter->ranges); i++) { in kvm_vm_ioctl_set_msr_filter()
6858 r = kvm_add_msr_filter(new_filter, &filter->ranges[i]); in kvm_vm_ioctl_set_msr_filter()
6865 mutex_lock(&kvm->lock); in kvm_vm_ioctl_set_msr_filter()
6866 old_filter = rcu_replace_pointer(kvm->arch.msr_filter, new_filter, in kvm_vm_ioctl_set_msr_filter()
6867 mutex_is_locked(&kvm->lock)); in kvm_vm_ioctl_set_msr_filter()
6868 mutex_unlock(&kvm->lock); in kvm_vm_ioctl_set_msr_filter()
6869 synchronize_srcu(&kvm->srcu); in kvm_vm_ioctl_set_msr_filter()
6898 struct kvm *kvm = filp->private_data; in kvm_arch_vm_compat_ioctl()
6899 long r = -ENOTTY; in kvm_arch_vm_compat_ioctl()
6910 return -EFAULT; in kvm_arch_vm_compat_ioctl()
6918 .flags = cr->flags, in kvm_arch_vm_compat_ioctl()
6919 .nmsrs = cr->nmsrs, in kvm_arch_vm_compat_ioctl()
6920 .base = cr->base, in kvm_arch_vm_compat_ioctl()
6921 .bitmap = (__u8 *)(ulong)cr->bitmap, in kvm_arch_vm_compat_ioctl()
6968 return -EFAULT; in kvm_vm_ioctl_get_clock()
6975 struct kvm_arch *ka = &kvm->arch; in kvm_vm_ioctl_set_clock()
6980 return -EFAULT; in kvm_vm_ioctl_set_clock()
6987 return -EINVAL; in kvm_vm_ioctl_set_clock()
7007 data.clock += now_real_ns - data.realtime; in kvm_vm_ioctl_set_clock()
7010 if (ka->use_master_clock) in kvm_vm_ioctl_set_clock()
7011 now_raw_ns = ka->master_kernel_ns; in kvm_vm_ioctl_set_clock()
7014 ka->kvmclock_offset = data.clock - now_raw_ns; in kvm_vm_ioctl_set_clock()
7021 struct kvm *kvm = filp->private_data; in kvm_arch_vm_ioctl()
7023 int r = -ENOTTY; in kvm_arch_vm_ioctl()
7025 * This union makes it completely explicit to gcc-3.x in kvm_arch_vm_ioctl()
7042 mutex_lock(&kvm->lock); in kvm_arch_vm_ioctl()
7043 r = -EINVAL; in kvm_arch_vm_ioctl()
7044 if (kvm->created_vcpus) in kvm_arch_vm_ioctl()
7046 r = -EFAULT; in kvm_arch_vm_ioctl()
7051 mutex_unlock(&kvm->lock); in kvm_arch_vm_ioctl()
7058 mutex_lock(&kvm->lock); in kvm_arch_vm_ioctl()
7060 r = -EEXIST; in kvm_arch_vm_ioctl()
7064 r = -EINVAL; in kvm_arch_vm_ioctl()
7065 if (kvm->created_vcpus) in kvm_arch_vm_ioctl()
7084 /* Write kvm->irq_routing before enabling irqchip_in_kernel. */ in kvm_arch_vm_ioctl()
7086 kvm->arch.irqchip_mode = KVM_IRQCHIP_KERNEL; in kvm_arch_vm_ioctl()
7089 mutex_unlock(&kvm->lock); in kvm_arch_vm_ioctl()
7096 r = -EFAULT; in kvm_arch_vm_ioctl()
7101 mutex_lock(&kvm->lock); in kvm_arch_vm_ioctl()
7102 r = -EEXIST; in kvm_arch_vm_ioctl()
7103 if (kvm->arch.vpit) in kvm_arch_vm_ioctl()
7105 r = -ENOENT; in kvm_arch_vm_ioctl()
7108 r = -ENOMEM; in kvm_arch_vm_ioctl()
7109 kvm->arch.vpit = kvm_create_pit(kvm, u.pit_config.flags); in kvm_arch_vm_ioctl()
7110 if (kvm->arch.vpit) in kvm_arch_vm_ioctl()
7113 mutex_unlock(&kvm->lock); in kvm_arch_vm_ioctl()
7125 r = -ENXIO; in kvm_arch_vm_ioctl()
7131 r = -EFAULT; in kvm_arch_vm_ioctl()
7149 r = -ENXIO; in kvm_arch_vm_ioctl()
7158 r = -EFAULT; in kvm_arch_vm_ioctl()
7161 r = -ENXIO; in kvm_arch_vm_ioctl()
7162 if (!kvm->arch.vpit) in kvm_arch_vm_ioctl()
7167 r = -EFAULT; in kvm_arch_vm_ioctl()
7174 r = -EFAULT; in kvm_arch_vm_ioctl()
7177 mutex_lock(&kvm->lock); in kvm_arch_vm_ioctl()
7178 r = -ENXIO; in kvm_arch_vm_ioctl()
7179 if (!kvm->arch.vpit) in kvm_arch_vm_ioctl()
7183 mutex_unlock(&kvm->lock); in kvm_arch_vm_ioctl()
7187 r = -ENXIO; in kvm_arch_vm_ioctl()
7188 if (!kvm->arch.vpit) in kvm_arch_vm_ioctl()
7193 r = -EFAULT; in kvm_arch_vm_ioctl()
7200 r = -EFAULT; in kvm_arch_vm_ioctl()
7203 mutex_lock(&kvm->lock); in kvm_arch_vm_ioctl()
7204 r = -ENXIO; in kvm_arch_vm_ioctl()
7205 if (!kvm->arch.vpit) in kvm_arch_vm_ioctl()
7209 mutex_unlock(&kvm->lock); in kvm_arch_vm_ioctl()
7214 r = -EFAULT; in kvm_arch_vm_ioctl()
7217 r = -ENXIO; in kvm_arch_vm_ioctl()
7218 if (!kvm->arch.vpit) in kvm_arch_vm_ioctl()
7225 mutex_lock(&kvm->lock); in kvm_arch_vm_ioctl()
7226 if (kvm->created_vcpus) in kvm_arch_vm_ioctl()
7227 r = -EBUSY; in kvm_arch_vm_ioctl()
7229 (kvm->arch.max_vcpu_ids && arg > kvm->arch.max_vcpu_ids)) in kvm_arch_vm_ioctl()
7230 r = -EINVAL; in kvm_arch_vm_ioctl()
7232 kvm->arch.bsp_vcpu_id = arg; in kvm_arch_vm_ioctl()
7233 mutex_unlock(&kvm->lock); in kvm_arch_vm_ioctl()
7238 r = -EFAULT; in kvm_arch_vm_ioctl()
7247 r = -EFAULT; in kvm_arch_vm_ioctl()
7252 r = -EFAULT; in kvm_arch_vm_ioctl()
7258 r = -EFAULT; in kvm_arch_vm_ioctl()
7267 r = -EFAULT; in kvm_arch_vm_ioctl()
7283 r = -EINVAL; in kvm_arch_vm_ioctl()
7293 WRITE_ONCE(kvm->arch.default_tsc_khz, user_tsc_khz); in kvm_arch_vm_ioctl()
7299 r = READ_ONCE(kvm->arch.default_tsc_khz); in kvm_arch_vm_ioctl()
7303 r = -ENOTTY; in kvm_arch_vm_ioctl()
7313 r = -EFAULT; in kvm_arch_vm_ioctl()
7317 r = -ENOTTY; in kvm_arch_vm_ioctl()
7327 r = -EFAULT; in kvm_arch_vm_ioctl()
7331 r = -ENOTTY; in kvm_arch_vm_ioctl()
7342 r = -EFAULT; in kvm_arch_vm_ioctl()
7357 return -EFAULT; in kvm_arch_vm_ioctl()
7363 r = -ENOTTY; in kvm_arch_vm_ioctl()
7423 (msr_index - MSR_IA32_RTIT_ADDR0_A >= in kvm_probe_msr_to_save()
7428 MSR_ARCH_PERFMON_PERFCTR0 + KVM_MAX_NR_GP_COUNTERS - 1: in kvm_probe_msr_to_save()
7429 if (msr_index - MSR_ARCH_PERFMON_PERFCTR0 >= in kvm_probe_msr_to_save()
7434 MSR_ARCH_PERFMON_EVENTSEL0 + KVM_MAX_NR_GP_COUNTERS - 1: in kvm_probe_msr_to_save()
7435 if (msr_index - MSR_ARCH_PERFMON_EVENTSEL0 >= in kvm_probe_msr_to_save()
7440 MSR_ARCH_PERFMON_FIXED_CTR0 + KVM_MAX_NR_FIXED_COUNTERS - 1: in kvm_probe_msr_to_save()
7441 if (msr_index - MSR_ARCH_PERFMON_FIXED_CTR0 >= in kvm_probe_msr_to_save()
7510 !kvm_iodevice_write(vcpu, &vcpu->arch.apic->dev, addr, n, v)) in vcpu_mmio_write()
7515 len -= n; in vcpu_mmio_write()
7530 !kvm_iodevice_read(vcpu, &vcpu->arch.apic->dev, in vcpu_mmio_read()
7537 len -= n; in vcpu_mmio_read()
7559 struct kvm_mmu *mmu = vcpu->arch.mmu; in translate_nested_gpa()
7564 /* NPT walks are always user-walks */ in translate_nested_gpa()
7566 t_gpa = mmu->gva_to_gpa(vcpu, mmu, gpa, access, exception); in translate_nested_gpa()
7574 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in kvm_mmu_gva_to_gpa_read()
7577 return mmu->gva_to_gpa(vcpu, mmu, gva, access, exception); in kvm_mmu_gva_to_gpa_read()
7584 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in kvm_mmu_gva_to_gpa_write()
7588 return mmu->gva_to_gpa(vcpu, mmu, gva, access, exception); in kvm_mmu_gva_to_gpa_write()
7596 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in kvm_mmu_gva_to_gpa_system()
7598 return mmu->gva_to_gpa(vcpu, mmu, gva, 0, exception); in kvm_mmu_gva_to_gpa_system()
7605 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in kvm_read_guest_virt_helper()
7610 gpa_t gpa = mmu->gva_to_gpa(vcpu, mmu, addr, access, exception); in kvm_read_guest_virt_helper()
7611 unsigned offset = addr & (PAGE_SIZE-1); in kvm_read_guest_virt_helper()
7612 unsigned toread = min(bytes, (unsigned)PAGE_SIZE - offset); in kvm_read_guest_virt_helper()
7624 bytes -= toread; in kvm_read_guest_virt_helper()
7638 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in kvm_fetch_guest_virt()
7644 gpa_t gpa = mmu->gva_to_gpa(vcpu, mmu, addr, access|PFERR_FETCH_MASK, in kvm_fetch_guest_virt()
7649 offset = addr & (PAGE_SIZE-1); in kvm_fetch_guest_virt()
7651 bytes = (unsigned)PAGE_SIZE - offset; in kvm_fetch_guest_virt()
7697 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in kvm_write_guest_virt_helper()
7702 gpa_t gpa = mmu->gva_to_gpa(vcpu, mmu, addr, access, exception); in kvm_write_guest_virt_helper()
7703 unsigned offset = addr & (PAGE_SIZE-1); in kvm_write_guest_virt_helper()
7704 unsigned towrite = min(bytes, (unsigned)PAGE_SIZE - offset); in kvm_write_guest_virt_helper()
7715 bytes -= towrite; in kvm_write_guest_virt_helper()
7743 vcpu->arch.l1tf_flush_l1d = true; in kvm_write_guest_virt_system()
7803 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in vcpu_mmio_gva_to_gpa()
7813 !permission_fault(vcpu, vcpu->arch.walk_mmu, in vcpu_mmio_gva_to_gpa()
7814 vcpu->arch.mmio_access, 0, access))) { in vcpu_mmio_gva_to_gpa()
7815 *gpa = vcpu->arch.mmio_gfn << PAGE_SHIFT | in vcpu_mmio_gva_to_gpa()
7816 (gva & (PAGE_SIZE - 1)); in vcpu_mmio_gva_to_gpa()
7821 *gpa = mmu->gva_to_gpa(vcpu, mmu, gva, access, exception); in vcpu_mmio_gva_to_gpa()
7824 return -1; in vcpu_mmio_gva_to_gpa()
7855 if (vcpu->mmio_read_completed) { in read_prepare()
7857 vcpu->mmio_fragments[0].gpa, val); in read_prepare()
7858 vcpu->mmio_read_completed = 0; in read_prepare()
7893 struct kvm_mmio_fragment *frag = &vcpu->mmio_fragments[0]; in write_exit_mmio()
7895 memcpy(vcpu->run->mmio.data, frag->data, min(8u, frag->len)); in write_exit_mmio()
7921 bool write = ops->write; in emulator_read_write_onepage()
7923 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in emulator_read_write_onepage()
7932 if (ctxt->gpa_available && emulator_can_use_gpa(ctxt) && in emulator_read_write_onepage()
7933 (addr & ~PAGE_MASK) == (ctxt->gpa_val & ~PAGE_MASK)) { in emulator_read_write_onepage()
7934 gpa = ctxt->gpa_val; in emulator_read_write_onepage()
7942 if (!ret && ops->read_write_emulate(vcpu, gpa, val, bytes)) in emulator_read_write_onepage()
7948 handled = ops->read_write_mmio(vcpu, gpa, bytes, val); in emulator_read_write_onepage()
7953 bytes -= handled; in emulator_read_write_onepage()
7956 WARN_ON(vcpu->mmio_nr_fragments >= KVM_MAX_MMIO_FRAGMENTS); in emulator_read_write_onepage()
7957 frag = &vcpu->mmio_fragments[vcpu->mmio_nr_fragments++]; in emulator_read_write_onepage()
7958 frag->gpa = gpa; in emulator_read_write_onepage()
7959 frag->data = val; in emulator_read_write_onepage()
7960 frag->len = bytes; in emulator_read_write_onepage()
7974 if (ops->read_write_prepare && in emulator_read_write()
7975 ops->read_write_prepare(vcpu, val, bytes)) in emulator_read_write()
7978 vcpu->mmio_nr_fragments = 0; in emulator_read_write()
7981 if (((addr + bytes - 1) ^ addr) & PAGE_MASK) { in emulator_read_write()
7984 now = -addr & ~PAGE_MASK; in emulator_read_write()
7991 if (ctxt->mode != X86EMUL_MODE_PROT64) in emulator_read_write()
7994 bytes -= now; in emulator_read_write()
8002 if (!vcpu->mmio_nr_fragments) in emulator_read_write()
8005 gpa = vcpu->mmio_fragments[0].gpa; in emulator_read_write()
8007 vcpu->mmio_needed = 1; in emulator_read_write()
8008 vcpu->mmio_cur_fragment = 0; in emulator_read_write()
8010 vcpu->run->mmio.len = min(8u, vcpu->mmio_fragments[0].len); in emulator_read_write()
8011 vcpu->run->mmio.is_write = vcpu->mmio_is_write = ops->write; in emulator_read_write()
8012 vcpu->run->exit_reason = KVM_EXIT_MMIO; in emulator_read_write()
8013 vcpu->run->mmio.phys_addr = gpa; in emulator_read_write()
8015 return ops->read_write_exit_mmio(vcpu, gpa, val, bytes); in emulator_read_write()
8055 if (bytes > 8 || (bytes & (bytes - 1))) in emulator_cmpxchg_emulated()
8069 page_line_mask = ~(cache_line_size() - 1); in emulator_cmpxchg_emulated()
8073 if (((gpa + bytes - 1) & page_line_mask) != (gpa & page_line_mask)) in emulator_cmpxchg_emulated()
8131 WARN_ON_ONCE(vcpu->arch.pio.count); in emulator_pio_in_out()
8147 memset(data, 0, size * (count - i)); in emulator_pio_in_out()
8156 vcpu->arch.pio.port = port; in emulator_pio_in_out()
8157 vcpu->arch.pio.in = in; in emulator_pio_in_out()
8158 vcpu->arch.pio.count = count; in emulator_pio_in_out()
8159 vcpu->arch.pio.size = size; in emulator_pio_in_out()
8162 memset(vcpu->arch.pio_data, 0, size * count); in emulator_pio_in_out()
8164 memcpy(vcpu->arch.pio_data, data, size * count); in emulator_pio_in_out()
8166 vcpu->run->exit_reason = KVM_EXIT_IO; in emulator_pio_in_out()
8167 vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT; in emulator_pio_in_out()
8168 vcpu->run->io.size = size; in emulator_pio_in_out()
8169 vcpu->run->io.data_offset = KVM_PIO_PAGE_OFFSET * PAGE_SIZE; in emulator_pio_in_out()
8170 vcpu->run->io.count = count; in emulator_pio_in_out()
8171 vcpu->run->io.port = port; in emulator_pio_in_out()
8187 int size = vcpu->arch.pio.size; in complete_emulator_pio_in()
8188 unsigned int count = vcpu->arch.pio.count; in complete_emulator_pio_in()
8189 memcpy(val, vcpu->arch.pio_data, size * count); in complete_emulator_pio_in()
8190 trace_kvm_pio(KVM_PIO_IN, vcpu->arch.pio.port, size, count, vcpu->arch.pio_data); in complete_emulator_pio_in()
8191 vcpu->arch.pio.count = 0; in complete_emulator_pio_in()
8199 if (vcpu->arch.pio.count) { in emulator_pio_in_emulated()
8247 cpumask_set_cpu(cpu, vcpu->arch.wbinvd_dirty_mask); in kvm_emulate_wbinvd_noskip()
8248 on_each_cpu_mask(vcpu->arch.wbinvd_dirty_mask, in kvm_emulate_wbinvd_noskip()
8251 cpumask_clear(vcpu->arch.wbinvd_dirty_mask); in kvm_emulate_wbinvd_noskip()
8285 return (curr_cr & ~((1ULL << 32) - 1)) | new_val; in mk_cr_64()
8298 value = vcpu->arch.cr2; in emulator_get_cr()
8327 vcpu->arch.cr2 = val; in emulator_set_cr()
8340 res = -1; in emulator_set_cr()
8401 desc->type = var.type; in emulator_get_segment()
8402 desc->s = var.s; in emulator_get_segment()
8403 desc->dpl = var.dpl; in emulator_get_segment()
8404 desc->p = var.present; in emulator_get_segment()
8405 desc->avl = var.avl; in emulator_get_segment()
8406 desc->l = var.l; in emulator_get_segment()
8407 desc->d = var.db; in emulator_get_segment()
8408 desc->g = var.g; in emulator_get_segment()
8426 if (desc->g) in emulator_set_segment()
8428 var.type = desc->type; in emulator_set_segment()
8429 var.dpl = desc->dpl; in emulator_set_segment()
8430 var.db = desc->d; in emulator_set_segment()
8431 var.s = desc->s; in emulator_set_segment()
8432 var.l = desc->l; in emulator_set_segment()
8433 var.g = desc->g; in emulator_set_segment()
8434 var.avl = desc->avl; in emulator_set_segment()
8435 var.present = desc->p; in emulator_set_segment()
8508 emul_to_vcpu(ctxt)->arch.halt_request = 1; in emulator_halt()
8516 &ctxt->exception); in emulator_intercept()
8591 struct kvm *kvm = emul_to_vcpu(ctxt)->kvm; in emulator_vm_bugged()
8593 if (!kvm->vm_bugged) in emulator_vm_bugged()
8683 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in inject_emulated_exception()
8685 if (ctxt->exception.vector == PF_VECTOR) in inject_emulated_exception()
8686 kvm_inject_emulated_page_fault(vcpu, &ctxt->exception); in inject_emulated_exception()
8687 else if (ctxt->exception.error_code_valid) in inject_emulated_exception()
8688 kvm_queue_exception_e(vcpu, ctxt->exception.vector, in inject_emulated_exception()
8689 ctxt->exception.error_code); in inject_emulated_exception()
8691 kvm_queue_exception(vcpu, ctxt->exception.vector); in inject_emulated_exception()
8704 ctxt->vcpu = vcpu; in alloc_emulate_ctxt()
8705 ctxt->ops = &emulate_ops; in alloc_emulate_ctxt()
8706 vcpu->arch.emulate_ctxt = ctxt; in alloc_emulate_ctxt()
8713 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in init_emulate_ctxt()
8718 ctxt->gpa_available = false; in init_emulate_ctxt()
8719 ctxt->eflags = kvm_get_rflags(vcpu); in init_emulate_ctxt()
8720 ctxt->tf = (ctxt->eflags & X86_EFLAGS_TF) != 0; in init_emulate_ctxt()
8722 ctxt->eip = kvm_rip_read(vcpu); in init_emulate_ctxt()
8723 ctxt->mode = (!is_protmode(vcpu)) ? X86EMUL_MODE_REAL : in init_emulate_ctxt()
8724 (ctxt->eflags & X86_EFLAGS_VM) ? X86EMUL_MODE_VM86 : in init_emulate_ctxt()
8728 ctxt->interruptibility = 0; in init_emulate_ctxt()
8729 ctxt->have_exception = false; in init_emulate_ctxt()
8730 ctxt->exception.vector = -1; in init_emulate_ctxt()
8731 ctxt->perm_ok = false; in init_emulate_ctxt()
8734 vcpu->arch.emulate_regs_need_sync_from_vcpu = false; in init_emulate_ctxt()
8739 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in kvm_inject_realmode_interrupt()
8744 ctxt->op_bytes = 2; in kvm_inject_realmode_interrupt()
8745 ctxt->ad_bytes = 2; in kvm_inject_realmode_interrupt()
8746 ctxt->_eip = ctxt->eip + inc_eip; in kvm_inject_realmode_interrupt()
8752 ctxt->eip = ctxt->_eip; in kvm_inject_realmode_interrupt()
8753 kvm_rip_write(vcpu, ctxt->eip); in kvm_inject_realmode_interrupt()
8754 kvm_set_rflags(vcpu, ctxt->eflags); in kvm_inject_realmode_interrupt()
8762 struct kvm_run *run = vcpu->run; in prepare_emulation_failure_exit()
8775 run->exit_reason = KVM_EXIT_INTERNAL_ERROR; in prepare_emulation_failure_exit()
8776 run->emulation_failure.suberror = KVM_INTERNAL_ERROR_EMULATION; in prepare_emulation_failure_exit()
8788 run->emulation_failure.flags = 0; in prepare_emulation_failure_exit()
8791 BUILD_BUG_ON((sizeof(run->emulation_failure.insn_size) + in prepare_emulation_failure_exit()
8792 sizeof(run->emulation_failure.insn_bytes) != 16)); in prepare_emulation_failure_exit()
8794 run->emulation_failure.flags |= in prepare_emulation_failure_exit()
8796 run->emulation_failure.insn_size = insn_size; in prepare_emulation_failure_exit()
8797 memset(run->emulation_failure.insn_bytes, 0x90, in prepare_emulation_failure_exit()
8798 sizeof(run->emulation_failure.insn_bytes)); in prepare_emulation_failure_exit()
8799 memcpy(run->emulation_failure.insn_bytes, insn_bytes, insn_size); in prepare_emulation_failure_exit()
8802 memcpy(&run->internal.data[info_start], info, sizeof(info)); in prepare_emulation_failure_exit()
8803 memcpy(&run->internal.data[info_start + ARRAY_SIZE(info)], data, in prepare_emulation_failure_exit()
8806 run->emulation_failure.ndata = info_start + ARRAY_SIZE(info) + ndata; in prepare_emulation_failure_exit()
8811 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in prepare_emulation_ctxt_failure_exit()
8813 prepare_emulation_failure_exit(vcpu, NULL, 0, ctxt->fetch.data, in prepare_emulation_ctxt_failure_exit()
8814 ctxt->fetch.end - ctxt->fetch.data); in prepare_emulation_ctxt_failure_exit()
8833 struct kvm_run *run = vcpu->run; in kvm_prepare_event_vectoring_exit()
8840 run->internal.data[ndata++] = info2; in kvm_prepare_event_vectoring_exit()
8841 run->internal.data[ndata++] = reason; in kvm_prepare_event_vectoring_exit()
8842 run->internal.data[ndata++] = info1; in kvm_prepare_event_vectoring_exit()
8843 run->internal.data[ndata++] = gpa; in kvm_prepare_event_vectoring_exit()
8844 run->internal.data[ndata++] = vcpu->arch.last_vmentry_cpu; in kvm_prepare_event_vectoring_exit()
8846 run->exit_reason = KVM_EXIT_INTERNAL_ERROR; in kvm_prepare_event_vectoring_exit()
8847 run->internal.suberror = KVM_INTERNAL_ERROR_DELIVERY_EV; in kvm_prepare_event_vectoring_exit()
8848 run->internal.ndata = ndata; in kvm_prepare_event_vectoring_exit()
8854 struct kvm *kvm = vcpu->kvm; in handle_emulation_failure()
8856 ++vcpu->stat.insn_emulation_fail; in handle_emulation_failure()
8864 if (kvm->arch.exit_on_emulation_error || in handle_emulation_failure()
8893 * a SPTE and write-protect the gfn to resolve the !PRESENT fault, and in kvm_unprotect_and_retry_on_failure()
8902 * table, unprotect the gfn (zap any relevant SPTEs) and re-enter the in kvm_unprotect_and_retry_on_failure()
8903 * guest to let the CPU re-execute the instruction in the hope that the in kvm_unprotect_and_retry_on_failure()
8938 struct kvm_run *kvm_run = vcpu->run; in kvm_vcpu_do_singlestep()
8940 if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) { in kvm_vcpu_do_singlestep()
8941 kvm_run->debug.arch.dr6 = DR6_BS | DR6_ACTIVE_LOW; in kvm_vcpu_do_singlestep()
8942 kvm_run->debug.arch.pc = kvm_get_linear_rip(vcpu); in kvm_vcpu_do_singlestep()
8943 kvm_run->debug.arch.exception = DB_VECTOR; in kvm_vcpu_do_singlestep()
8944 kvm_run->exit_reason = KVM_EXIT_DEBUG; in kvm_vcpu_do_singlestep()
9014 if (unlikely(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) && in kvm_vcpu_check_code_breakpoint()
9015 (vcpu->arch.guest_debug_dr7 & DR7_BP_EN_MASK)) { in kvm_vcpu_check_code_breakpoint()
9016 struct kvm_run *kvm_run = vcpu->run; in kvm_vcpu_check_code_breakpoint()
9019 vcpu->arch.guest_debug_dr7, in kvm_vcpu_check_code_breakpoint()
9020 vcpu->arch.eff_db); in kvm_vcpu_check_code_breakpoint()
9023 kvm_run->debug.arch.dr6 = dr6 | DR6_ACTIVE_LOW; in kvm_vcpu_check_code_breakpoint()
9024 kvm_run->debug.arch.pc = eip; in kvm_vcpu_check_code_breakpoint()
9025 kvm_run->debug.arch.exception = DB_VECTOR; in kvm_vcpu_check_code_breakpoint()
9026 kvm_run->exit_reason = KVM_EXIT_DEBUG; in kvm_vcpu_check_code_breakpoint()
9032 if (unlikely(vcpu->arch.dr7 & DR7_BP_EN_MASK) && in kvm_vcpu_check_code_breakpoint()
9036 vcpu->arch.dr7, in kvm_vcpu_check_code_breakpoint()
9037 vcpu->arch.db); in kvm_vcpu_check_code_breakpoint()
9051 switch (ctxt->opcode_len) { in is_vmware_backdoor_opcode()
9053 switch (ctxt->b) { in is_vmware_backdoor_opcode()
9070 switch (ctxt->b) { in is_vmware_backdoor_opcode()
9083 * (and wrong) when emulating on an intercepted fault-like exception[*], as
9093 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in x86_decode_emulated_instruction()
9101 ++vcpu->stat.insn_emulation; in x86_decode_emulated_instruction()
9111 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in x86_emulate_instruction()
9137 vcpu->arch.l1tf_flush_l1d = true; in x86_emulate_instruction()
9144 * are fault-like and are higher priority than any faults on in x86_emulate_instruction()
9162 if (ctxt->have_exception && in x86_emulate_instruction()
9165 * #UD should result in just EMULATION_FAILED, and trap-like in x86_emulate_instruction()
9168 WARN_ON_ONCE(ctxt->exception.vector == UD_VECTOR || in x86_emulate_instruction()
9169 exception_type(ctxt->exception.vector) == EXCPT_TRAP); in x86_emulate_instruction()
9187 * injecting single-step #DBs. in x86_emulate_instruction()
9190 if (ctxt->mode != X86EMUL_MODE_PROT64) in x86_emulate_instruction()
9191 ctxt->eip = (u32)ctxt->_eip; in x86_emulate_instruction()
9193 ctxt->eip = ctxt->_eip; in x86_emulate_instruction()
9200 kvm_rip_write(vcpu, ctxt->eip); in x86_emulate_instruction()
9201 if (ctxt->eflags & X86_EFLAGS_RF) in x86_emulate_instruction()
9202 kvm_set_rflags(vcpu, ctxt->eflags & ~X86_EFLAGS_RF); in x86_emulate_instruction()
9207 * If emulation was caused by a write-protection #PF on a non-page_table in x86_emulate_instruction()
9219 if (vcpu->arch.emulate_regs_need_sync_from_vcpu) { in x86_emulate_instruction()
9220 vcpu->arch.emulate_regs_need_sync_from_vcpu = false; in x86_emulate_instruction()
9227 ctxt->exception.address = cr2_or_gpa; in x86_emulate_instruction()
9230 if (vcpu->arch.mmu->root_role.direct) { in x86_emulate_instruction()
9231 ctxt->gpa_available = true; in x86_emulate_instruction()
9232 ctxt->gpa_val = cr2_or_gpa; in x86_emulate_instruction()
9236 ctxt->exception.address = 0; in x86_emulate_instruction()
9252 if (ctxt->have_exception) { in x86_emulate_instruction()
9253 WARN_ON_ONCE(vcpu->mmio_needed && !vcpu->mmio_is_write); in x86_emulate_instruction()
9254 vcpu->mmio_needed = false; in x86_emulate_instruction()
9257 } else if (vcpu->arch.pio.count) { in x86_emulate_instruction()
9258 if (!vcpu->arch.pio.in) { in x86_emulate_instruction()
9259 /* FIXME: return into emulator if single-stepping. */ in x86_emulate_instruction()
9260 vcpu->arch.pio.count = 0; in x86_emulate_instruction()
9263 vcpu->arch.complete_userspace_io = complete_emulated_pio; in x86_emulate_instruction()
9266 } else if (vcpu->mmio_needed) { in x86_emulate_instruction()
9267 ++vcpu->stat.mmio_exits; in x86_emulate_instruction()
9269 if (!vcpu->mmio_is_write) in x86_emulate_instruction()
9272 vcpu->arch.complete_userspace_io = complete_emulated_mmio; in x86_emulate_instruction()
9273 } else if (vcpu->arch.complete_userspace_io) { in x86_emulate_instruction()
9284 toggle_interruptibility(vcpu, ctxt->interruptibility); in x86_emulate_instruction()
9285 vcpu->arch.emulate_regs_need_sync_to_vcpu = false; in x86_emulate_instruction()
9288 * Note, EXCPT_DB is assumed to be fault-like as the emulator in x86_emulate_instruction()
9290 * of which are fault-like. in x86_emulate_instruction()
9292 if (!ctxt->have_exception || in x86_emulate_instruction()
9293 exception_type(ctxt->exception.vector) == EXCPT_TRAP) { in x86_emulate_instruction()
9295 if (ctxt->is_branch) in x86_emulate_instruction()
9297 kvm_rip_write(vcpu, ctxt->eip); in x86_emulate_instruction()
9298 if (r && (ctxt->tf || (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP))) in x86_emulate_instruction()
9301 __kvm_set_rflags(vcpu, ctxt->eflags); in x86_emulate_instruction()
9310 if (unlikely((ctxt->eflags & ~rflags) & X86_EFLAGS_IF)) in x86_emulate_instruction()
9313 vcpu->arch.emulate_regs_need_sync_to_vcpu = true; in x86_emulate_instruction()
9333 vcpu->arch.pio.count = 0; in complete_fast_pio_out_port_0x7e()
9339 vcpu->arch.pio.count = 0; in complete_fast_pio_out()
9341 if (unlikely(!kvm_is_linear_rip(vcpu, vcpu->arch.pio.linear_rip))) in complete_fast_pio_out()
9361 kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_OUT_7E_INC_RIP)) { in kvm_fast_pio_out()
9362 vcpu->arch.complete_userspace_io = in kvm_fast_pio_out()
9366 vcpu->arch.pio.linear_rip = kvm_get_linear_rip(vcpu); in kvm_fast_pio_out()
9367 vcpu->arch.complete_userspace_io = complete_fast_pio_out; in kvm_fast_pio_out()
9377 BUG_ON(vcpu->arch.pio.count != 1); in complete_fast_pio_in()
9379 if (unlikely(!kvm_is_linear_rip(vcpu, vcpu->arch.pio.linear_rip))) { in complete_fast_pio_in()
9380 vcpu->arch.pio.count = 0; in complete_fast_pio_in()
9385 val = (vcpu->arch.pio.size < 4) ? kvm_rax_read(vcpu) : 0; in complete_fast_pio_in()
9408 vcpu->arch.pio.linear_rip = kvm_get_linear_rip(vcpu); in kvm_fast_pio_in()
9409 vcpu->arch.complete_userspace_io = complete_fast_pio_in; in kvm_fast_pio_in()
9440 khz = freq->new; in tsc_khz_changed()
9461 /* TSC frequency always matches when on Hyper-V */ in kvm_hyperv_tsc_notifier()
9529 if (vcpu->cpu != cpu) in __kvmclock_cpufreq_notifier()
9532 if (vcpu->cpu != raw_smp_processor_id()) in __kvmclock_cpufreq_notifier()
9538 if (freq->old < freq->new && send_ipi) { in __kvmclock_cpufreq_notifier()
9561 if (val == CPUFREQ_PRECHANGE && freq->old > freq->new) in kvmclock_cpufreq_notifier()
9563 if (val == CPUFREQ_POSTCHANGE && freq->old < freq->new) in kvmclock_cpufreq_notifier()
9566 for_each_cpu(cpu, freq->policy->cpus) in kvmclock_cpufreq_notifier()
9594 if (policy->cpuinfo.max_freq) in kvm_timer_init()
9595 max_tsc_khz = policy->cpuinfo.max_freq; in kvm_timer_init()
9653 if (!gtod_is_based_on_tsc(gtod->clock.vclock_mode) && in pvclock_gtod_notify()
9666 memcpy(&kvm_x86_ops, ops->runtime_ops, sizeof(kvm_x86_ops)); in kvm_ops_update()
9676 #include <asm/kvm-x86-ops.h> in kvm_ops_update()
9679 kvm_pmu_ops_update(ops->pmu_ops); in kvm_ops_update()
9697 return -EIO; in kvm_x86_check_processor_compatibility()
9716 return -EEXIST; in kvm_x86_vendor_init()
9726 return -EOPNOTSUPP; in kvm_x86_vendor_init()
9731 return -EOPNOTSUPP; in kvm_x86_vendor_init()
9744 return -EIO; in kvm_x86_vendor_init()
9752 return -ENOMEM; in kvm_x86_vendor_init()
9758 r = -ENOMEM; in kvm_x86_vendor_init()
9780 kvm_init_pmu_capability(ops->pmu_ops); in kvm_x86_vendor_init()
9785 r = ops->hardware_setup(); in kvm_x86_vendor_init()
9804 if (pi_inject_timer == -1) in kvm_x86_vendor_init()
9813 kvm_register_perf_callbacks(ops->handle_intel_pt_intr); in kvm_x86_vendor_init()
9893 return -KVM_EOPNOTSUPP; in kvm_pv_clock_pairing()
9899 if (vcpu->arch.tsc_always_catchup) in kvm_pv_clock_pairing()
9900 return -KVM_EOPNOTSUPP; in kvm_pv_clock_pairing()
9903 return -KVM_EOPNOTSUPP; in kvm_pv_clock_pairing()
9912 if (kvm_write_guest(vcpu->kvm, paddr, &clock_pairing, in kvm_pv_clock_pairing()
9914 ret = -KVM_EFAULT; in kvm_pv_clock_pairing()
9923 * @apicid - apicid of vcpu to be kicked.
9943 return (READ_ONCE(kvm->arch.apicv_inhibit_reasons) == 0); in kvm_apicv_activated()
9949 ulong vm_reasons = READ_ONCE(vcpu->kvm->arch.apicv_inhibit_reasons); in kvm_vcpu_apicv_activated()
9977 set_or_clear_apicv_inhibit(&kvm->arch.apicv_inhibit_reasons, reason, true); in kvm_apicv_init()
9979 init_rwsem(&kvm->arch.apicv_update_lock); in kvm_apicv_init()
9987 vcpu->stat.directed_yield_attempted++; in kvm_sched_yield()
9993 map = rcu_dereference(vcpu->kvm->arch.apic_map); in kvm_sched_yield()
9995 if (likely(map) && dest_id <= map->max_apic_id && map->phys_map[dest_id]) in kvm_sched_yield()
9996 target = map->phys_map[dest_id]->vcpu; in kvm_sched_yield()
10000 if (!target || !READ_ONCE(target->ready)) in kvm_sched_yield()
10010 vcpu->stat.directed_yield_successful++; in kvm_sched_yield()
10018 u64 ret = vcpu->run->hypercall.ret; in complete_hypercall_exit()
10034 ++vcpu->stat.hypercalls; in ____kvm_emulate_hypercall()
10047 ret = -KVM_EPERM; in ____kvm_emulate_hypercall()
10051 ret = -KVM_ENOSYS; in ____kvm_emulate_hypercall()
10061 kvm_pv_kick_cpu_op(vcpu->kvm, a1); in ____kvm_emulate_hypercall()
10074 ret = kvm_pv_send_ipi(vcpu->kvm, a0, a1, a2, a3, op_64_bit); in ____kvm_emulate_hypercall()
10086 ret = -KVM_ENOSYS; in ____kvm_emulate_hypercall()
10087 if (!user_exit_on_hypercall(vcpu->kvm, KVM_HC_MAP_GPA_RANGE)) in ____kvm_emulate_hypercall()
10092 ret = -KVM_EINVAL; in ____kvm_emulate_hypercall()
10096 vcpu->run->exit_reason = KVM_EXIT_HYPERCALL; in ____kvm_emulate_hypercall()
10097 vcpu->run->hypercall.nr = KVM_HC_MAP_GPA_RANGE; in ____kvm_emulate_hypercall()
10099 * In principle this should have been -KVM_ENOSYS, but userspace (QEMU <=9.2) in ____kvm_emulate_hypercall()
10100 * assumed that vcpu->run->hypercall.ret is never changed by KVM and thus that in ____kvm_emulate_hypercall()
10102 * vcpu->run->hypercall.ret, ensuring that it is zero to not break QEMU. in ____kvm_emulate_hypercall()
10104 vcpu->run->hypercall.ret = 0; in ____kvm_emulate_hypercall()
10105 vcpu->run->hypercall.args[0] = gpa; in ____kvm_emulate_hypercall()
10106 vcpu->run->hypercall.args[1] = npages; in ____kvm_emulate_hypercall()
10107 vcpu->run->hypercall.args[2] = attrs; in ____kvm_emulate_hypercall()
10108 vcpu->run->hypercall.flags = 0; in ____kvm_emulate_hypercall()
10110 vcpu->run->hypercall.flags |= KVM_EXIT_HYPERCALL_LONG_MODE; in ____kvm_emulate_hypercall()
10112 WARN_ON_ONCE(vcpu->run->hypercall.flags & KVM_EXIT_HYPERCALL_MBZ); in ____kvm_emulate_hypercall()
10113 vcpu->arch.complete_userspace_io = complete_hypercall; in ____kvm_emulate_hypercall()
10117 ret = -KVM_ENOSYS; in ____kvm_emulate_hypercall()
10122 vcpu->run->hypercall.ret = ret; in ____kvm_emulate_hypercall()
10129 if (kvm_xen_hypercall_enabled(vcpu->kvm)) in kvm_emulate_hypercall()
10152 if (!kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_FIX_HYPERCALL_INSN)) { in emulator_fix_hypercall()
10153 ctxt->exception.error_code_valid = false; in emulator_fix_hypercall()
10154 ctxt->exception.vector = UD_VECTOR; in emulator_fix_hypercall()
10155 ctxt->have_exception = true; in emulator_fix_hypercall()
10162 &ctxt->exception); in emulator_fix_hypercall()
10167 return vcpu->run->request_interrupt_window && in dm_request_for_irq_injection()
10168 likely(!pic_in_kernel(vcpu->kvm)); in dm_request_for_irq_injection()
10171 /* Called within kvm->srcu read side. */
10174 struct kvm_run *kvm_run = vcpu->run; in post_kvm_run_save()
10176 kvm_run->if_flag = kvm_x86_call(get_if_flag)(vcpu); in post_kvm_run_save()
10177 kvm_run->cr8 = kvm_get_cr8(vcpu); in post_kvm_run_save()
10178 kvm_run->apic_base = vcpu->arch.apic_base; in post_kvm_run_save()
10180 kvm_run->ready_for_interrupt_injection = in post_kvm_run_save()
10181 pic_in_kernel(vcpu->kvm) || in post_kvm_run_save()
10185 kvm_run->flags |= KVM_RUN_X86_SMM; in post_kvm_run_save()
10187 kvm_run->flags |= KVM_RUN_X86_GUEST_MODE; in post_kvm_run_save()
10200 if (vcpu->arch.apic->apicv_active) in update_cr8_intercept()
10203 if (!vcpu->arch.apic->vapic_addr) in update_cr8_intercept()
10206 max_irr = -1; in update_cr8_intercept()
10208 if (max_irr != -1) in update_cr8_intercept()
10220 kvm_x86_ops.nested_ops->triple_fault(vcpu); in kvm_check_nested_events()
10224 return kvm_x86_ops.nested_ops->check_events(vcpu); in kvm_check_nested_events()
10233 * is injected as intercepted #PF VM-Exits for AMD's Paged Real Mode do in kvm_inject_exception()
10236 vcpu->arch.exception.has_error_code &= is_protmode(vcpu); in kvm_inject_exception()
10238 trace_kvm_inj_exception(vcpu->arch.exception.vector, in kvm_inject_exception()
10239 vcpu->arch.exception.has_error_code, in kvm_inject_exception()
10240 vcpu->arch.exception.error_code, in kvm_inject_exception()
10241 vcpu->arch.exception.injected); in kvm_inject_exception()
10251 * injected as part of a previous VM-Enter, but weren't successfully delivered
10252 * and need to be re-injected.
10257 * also be able to re-inject NMIs and IRQs in the middle of an instruction.
10258 * I.e. for exceptions and re-injected events, NOT invoking this on instruction
10263 * instruction boundaries for asynchronous events. However, because VM-Exits
10269 * But, if a VM-Exit occurs during instruction execution, and KVM does NOT skip
10292 * Process nested events first, as nested VM-Exit supersedes event in kvm_check_and_inject_events()
10293 * re-injection. If there's an event queued for re-injection, it will in kvm_check_and_inject_events()
10294 * be saved into the appropriate vmc{b,s}12 fields on nested VM-Exit. in kvm_check_and_inject_events()
10302 * Re-inject exceptions and events *especially* if immediate entry+exit in kvm_check_and_inject_events()
10306 * Don't re-inject an NMI or interrupt if there is a pending exception. in kvm_check_and_inject_events()
10315 * as the exception "occurred" before the exit to userspace. Trap-like in kvm_check_and_inject_events()
10317 * And while fault-like exceptions, e.g. #GP and #PF, are the lowest in kvm_check_and_inject_events()
10320 * Thus a pending fault-like exception means the fault occurred on the in kvm_check_and_inject_events()
10324 if (vcpu->arch.exception.injected) in kvm_check_and_inject_events()
10328 else if (vcpu->arch.nmi_injected) in kvm_check_and_inject_events()
10330 else if (vcpu->arch.interrupt.injected) in kvm_check_and_inject_events()
10334 * Exceptions that morph to VM-Exits are handled above, and pending in kvm_check_and_inject_events()
10335 * exceptions on top of injected exceptions that do not VM-Exit should in kvm_check_and_inject_events()
10338 WARN_ON_ONCE(vcpu->arch.exception.injected && in kvm_check_and_inject_events()
10339 vcpu->arch.exception.pending); in kvm_check_and_inject_events()
10343 * nested VM-Enter or event re-injection so that a different pending in kvm_check_and_inject_events()
10346 * Otherwise, continue processing events even if VM-Exit occurred. The in kvm_check_and_inject_events()
10347 * VM-Exit will have cleared exceptions that were meant for L2, but in kvm_check_and_inject_events()
10354 * A pending exception VM-Exit should either result in nested VM-Exit in kvm_check_and_inject_events()
10355 * or force an immediate re-entry and exit to/from L2, and exception in kvm_check_and_inject_events()
10356 * VM-Exits cannot be injected (flag should _never_ be set). in kvm_check_and_inject_events()
10358 WARN_ON_ONCE(vcpu->arch.exception_vmexit.injected || in kvm_check_and_inject_events()
10359 vcpu->arch.exception_vmexit.pending); in kvm_check_and_inject_events()
10363 * to re-inject a previous event. See above comments on re-injecting in kvm_check_and_inject_events()
10368 if (vcpu->arch.exception.pending) { in kvm_check_and_inject_events()
10370 * Fault-class exceptions, except #DBs, set RF=1 in the RFLAGS in kvm_check_and_inject_events()
10371 * value pushed on the stack. Trap-like exception and all #DBs in kvm_check_and_inject_events()
10372 * leave RF as-is (KVM follows Intel's behavior in this regard; in kvm_check_and_inject_events()
10377 * fault-like. They do _not_ set RF, a la code breakpoints. in kvm_check_and_inject_events()
10379 if (exception_type(vcpu->arch.exception.vector) == EXCPT_FAULT) in kvm_check_and_inject_events()
10383 if (vcpu->arch.exception.vector == DB_VECTOR) { in kvm_check_and_inject_events()
10384 kvm_deliver_exception_payload(vcpu, &vcpu->arch.exception); in kvm_check_and_inject_events()
10385 if (vcpu->arch.dr7 & DR7_GD) { in kvm_check_and_inject_events()
10386 vcpu->arch.dr7 &= ~DR7_GD; in kvm_check_and_inject_events()
10393 vcpu->arch.exception.pending = false; in kvm_check_and_inject_events()
10394 vcpu->arch.exception.injected = true; in kvm_check_and_inject_events()
10400 if (vcpu->guest_debug & KVM_GUESTDBG_BLOCKIRQ) in kvm_check_and_inject_events()
10405 * due to architectural conditions (e.g. IF=0) a window-open exit in kvm_check_and_inject_events()
10406 * will re-request KVM_REQ_EVENT. Sometimes however an event is pending in kvm_check_and_inject_events()
10412 * The kvm_x86_ops hooks communicate this by returning -EBUSY. in kvm_check_and_inject_events()
10415 if (vcpu->arch.smi_pending) { in kvm_check_and_inject_events()
10417 -EBUSY; in kvm_check_and_inject_events()
10421 vcpu->arch.smi_pending = false; in kvm_check_and_inject_events()
10422 ++vcpu->arch.smi_count; in kvm_check_and_inject_events()
10430 if (vcpu->arch.nmi_pending) { in kvm_check_and_inject_events()
10432 -EBUSY; in kvm_check_and_inject_events()
10436 --vcpu->arch.nmi_pending; in kvm_check_and_inject_events()
10437 vcpu->arch.nmi_injected = true; in kvm_check_and_inject_events()
10442 if (vcpu->arch.nmi_pending) in kvm_check_and_inject_events()
10448 -EBUSY; in kvm_check_and_inject_events()
10454 if (!WARN_ON_ONCE(irq == -1)) { in kvm_check_and_inject_events()
10465 kvm_x86_ops.nested_ops->has_events && in kvm_check_and_inject_events()
10466 kvm_x86_ops.nested_ops->has_events(vcpu, true)) in kvm_check_and_inject_events()
10471 * is done emulating and should only propagate the to-be-injected event in kvm_check_and_inject_events()
10473 * infinite loop as KVM will bail from VM-Enter to inject the pending in kvm_check_and_inject_events()
10481 WARN_ON_ONCE(vcpu->arch.exception.pending || in kvm_check_and_inject_events()
10482 vcpu->arch.exception_vmexit.pending); in kvm_check_and_inject_events()
10486 if (r == -EBUSY) { in kvm_check_and_inject_events()
10507 if (kvm_x86_call(get_nmi_mask)(vcpu) || vcpu->arch.nmi_injected) in process_nmi()
10514 * tracked in vcpu->arch.nmi_pending. in process_nmi()
10517 limit--; in process_nmi()
10519 vcpu->arch.nmi_pending += atomic_xchg(&vcpu->arch.nmi_queued, 0); in process_nmi()
10520 vcpu->arch.nmi_pending = min(vcpu->arch.nmi_pending, limit); in process_nmi()
10522 if (vcpu->arch.nmi_pending && in process_nmi()
10524 vcpu->arch.nmi_pending--; in process_nmi()
10526 if (vcpu->arch.nmi_pending) in process_nmi()
10533 return vcpu->arch.nmi_pending + in kvm_get_nr_pending_nmis()
10550 struct kvm_lapic *apic = vcpu->arch.apic; in __kvm_vcpu_update_apicv()
10556 down_read(&vcpu->kvm->arch.apicv_update_lock); in __kvm_vcpu_update_apicv()
10563 if (apic->apicv_active == activate) in __kvm_vcpu_update_apicv()
10566 apic->apicv_active = activate; in __kvm_vcpu_update_apicv()
10576 if (!apic->apicv_active) in __kvm_vcpu_update_apicv()
10581 up_read(&vcpu->kvm->arch.apicv_update_lock); in __kvm_vcpu_update_apicv()
10601 if (apic_x2apic_mode(vcpu->arch.apic) && in kvm_vcpu_update_apicv()
10613 lockdep_assert_held_write(&kvm->arch.apicv_update_lock); in __kvm_set_or_clear_apicv_inhibit()
10618 old = new = kvm->arch.apicv_inhibit_reasons; in __kvm_set_or_clear_apicv_inhibit()
10636 kvm->arch.apicv_inhibit_reasons = new; in __kvm_set_or_clear_apicv_inhibit()
10639 int idx = srcu_read_lock(&kvm->srcu); in __kvm_set_or_clear_apicv_inhibit()
10642 srcu_read_unlock(&kvm->srcu, idx); in __kvm_set_or_clear_apicv_inhibit()
10645 kvm->arch.apicv_inhibit_reasons = new; in __kvm_set_or_clear_apicv_inhibit()
10655 down_write(&kvm->arch.apicv_update_lock); in kvm_set_or_clear_apicv_inhibit()
10657 up_write(&kvm->arch.apicv_update_lock); in kvm_set_or_clear_apicv_inhibit()
10666 bitmap_zero(vcpu->arch.ioapic_handled_vectors, 256); in vcpu_scan_ioapic()
10670 if (irqchip_split(vcpu->kvm)) in vcpu_scan_ioapic()
10671 kvm_scan_ioapic_routes(vcpu, vcpu->arch.ioapic_handled_vectors); in vcpu_scan_ioapic()
10672 else if (ioapic_in_kernel(vcpu->kvm)) in vcpu_scan_ioapic()
10673 kvm_ioapic_scan_entry(vcpu, vcpu->arch.ioapic_handled_vectors); in vcpu_scan_ioapic()
10676 vcpu->arch.load_eoi_exitmap_pending = true; in vcpu_scan_ioapic()
10683 if (!kvm_apic_hw_enabled(vcpu->arch.apic)) in vcpu_load_eoi_exitmap()
10691 vcpu->arch.ioapic_handled_vectors, in vcpu_load_eoi_exitmap()
10692 to_hv_synic(vcpu)->vec_bitmap, 256); in vcpu_load_eoi_exitmap()
10698 vcpu, (u64 *)vcpu->arch.ioapic_handled_vectors); in vcpu_load_eoi_exitmap()
10715 * Called within kvm->srcu read side.
10732 r = -EIO; in vcpu_enter_guest()
10742 if (unlikely(!kvm_x86_ops.nested_ops->get_nested_state_pages(vcpu))) { in vcpu_enter_guest()
10752 kvm_update_masterclock(vcpu->kvm); in vcpu_enter_guest()
10776 * Fall back to a "full" guest flush if Hyper-V's precise in vcpu_enter_guest()
10777 * flushing fails. Note, Hyper-V's flushing is per-vCPU, but in vcpu_enter_guest()
10788 vcpu->run->exit_reason = KVM_EXIT_TPR_ACCESS; in vcpu_enter_guest()
10794 kvm_x86_ops.nested_ops->triple_fault(vcpu); in vcpu_enter_guest()
10797 vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN; in vcpu_enter_guest()
10798 vcpu->mmio_needed = 0; in vcpu_enter_guest()
10805 vcpu->arch.apf.halted = true; in vcpu_enter_guest()
10822 BUG_ON(vcpu->arch.pending_ioapic_eoi > 255); in vcpu_enter_guest()
10823 if (test_bit(vcpu->arch.pending_ioapic_eoi, in vcpu_enter_guest()
10824 vcpu->arch.ioapic_handled_vectors)) { in vcpu_enter_guest()
10825 vcpu->run->exit_reason = KVM_EXIT_IOAPIC_EOI; in vcpu_enter_guest()
10826 vcpu->run->eoi.vector = in vcpu_enter_guest()
10827 vcpu->arch.pending_ioapic_eoi; in vcpu_enter_guest()
10840 vcpu->run->exit_reason = KVM_EXIT_SYSTEM_EVENT; in vcpu_enter_guest()
10841 vcpu->run->system_event.type = KVM_SYSTEM_EVENT_CRASH; in vcpu_enter_guest()
10842 vcpu->run->system_event.ndata = 0; in vcpu_enter_guest()
10847 vcpu->run->exit_reason = KVM_EXIT_SYSTEM_EVENT; in vcpu_enter_guest()
10848 vcpu->run->system_event.type = KVM_SYSTEM_EVENT_RESET; in vcpu_enter_guest()
10849 vcpu->run->system_event.ndata = 0; in vcpu_enter_guest()
10856 vcpu->run->exit_reason = KVM_EXIT_HYPERV; in vcpu_enter_guest()
10857 vcpu->run->hyperv = hv_vcpu->exit; in vcpu_enter_guest()
10864 * KVM_REQ_CLOCK_UPDATE, because Hyper-V SynIC timers in vcpu_enter_guest()
10865 * depend on the guest clock being up-to-date in vcpu_enter_guest()
10882 if (vcpu->arch.mp_state != KVM_MP_STATE_RUNNABLE) { in vcpu_enter_guest()
10891 ++vcpu->stat.req_event; in vcpu_enter_guest()
10897 if (vcpu->arch.mp_state == KVM_MP_STATE_INIT_RECEIVED) { in vcpu_enter_guest()
10932 /* Store vcpu->apicv_active before vcpu->mode. */ in vcpu_enter_guest()
10933 smp_store_release(&vcpu->mode, IN_GUEST_MODE); in vcpu_enter_guest()
10938 * 1) We should set ->mode before checking ->requests. Please see in vcpu_enter_guest()
10941 * 2) For APICv, we should set ->mode before checking PID.ON. This in vcpu_enter_guest()
10962 vcpu->mode = OUTSIDE_GUEST_MODE; in vcpu_enter_guest()
10978 if (vcpu->arch.guest_fpu.xfd_err) in vcpu_enter_guest()
10979 wrmsrl(MSR_IA32_XFD_ERR, vcpu->arch.guest_fpu.xfd_err); in vcpu_enter_guest()
10981 if (unlikely(vcpu->arch.switch_db_regs)) { in vcpu_enter_guest()
10983 set_debugreg(vcpu->arch.eff_db[0], 0); in vcpu_enter_guest()
10984 set_debugreg(vcpu->arch.eff_db[1], 1); in vcpu_enter_guest()
10985 set_debugreg(vcpu->arch.eff_db[2], 2); in vcpu_enter_guest()
10986 set_debugreg(vcpu->arch.eff_db[3], 3); in vcpu_enter_guest()
10988 if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) in vcpu_enter_guest()
10989 kvm_x86_call(set_dr6)(vcpu, vcpu->arch.dr6); in vcpu_enter_guest()
10994 vcpu->arch.host_debugctl = get_debugctlmsr(); in vcpu_enter_guest()
11002 * per-VM state, and responding vCPUs must wait for the update in vcpu_enter_guest()
11021 /* Note, VM-Exits that go down the "slow" path are accounted below. */ in vcpu_enter_guest()
11022 ++vcpu->stat.exits; in vcpu_enter_guest()
11031 if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) { in vcpu_enter_guest()
11032 WARN_ON(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP); in vcpu_enter_guest()
11048 vcpu->arch.last_vmentry_cpu = vcpu->cpu; in vcpu_enter_guest()
11049 vcpu->arch.last_guest_tsc = kvm_read_l1_tsc(vcpu, rdtsc()); in vcpu_enter_guest()
11051 vcpu->mode = OUTSIDE_GUEST_MODE; in vcpu_enter_guest()
11056 * rely on the fact that guest_fpu::xfd is up-to-date (e.g. in vcpu_enter_guest()
11059 if (vcpu->arch.xfd_no_write_intercept) in vcpu_enter_guest()
11064 if (vcpu->arch.guest_fpu.xfd_err) in vcpu_enter_guest()
11069 * VM-Exit on SVM and any ticks that occur between VM-Exit and now. in vcpu_enter_guest()
11076 ++vcpu->stat.exits; in vcpu_enter_guest()
11104 !vcpu->arch.guest_state_protected)) { in vcpu_enter_guest()
11109 if (unlikely(vcpu->arch.tsc_always_catchup)) in vcpu_enter_guest()
11112 if (vcpu->arch.apic_attention) in vcpu_enter_guest()
11125 if (unlikely(vcpu->arch.apic_attention)) in vcpu_enter_guest()
11133 return (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE && in kvm_vcpu_running()
11134 !vcpu->arch.apf.halted); in kvm_vcpu_running()
11139 if (!list_empty_careful(&vcpu->async_pf.done)) in kvm_vcpu_has_events()
11146 if (vcpu->arch.pv.pv_unhalted) in kvm_vcpu_has_events()
11153 (vcpu->arch.nmi_pending && in kvm_vcpu_has_events()
11159 (vcpu->arch.smi_pending && in kvm_vcpu_has_events()
11177 kvm_x86_ops.nested_ops->has_events && in kvm_vcpu_has_events()
11178 kvm_x86_ops.nested_ops->has_events(vcpu, false)) in kvm_vcpu_has_events()
11192 /* Called within kvm->srcu read side. */
11199 * Switch to the software timer before halt-polling/blocking as in vcpu_block()
11202 * Switch before halt-polling so that KVM recognizes an expired in vcpu_block()
11210 if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED) in vcpu_block()
11231 * state field (AMD does not have a similar field and a VM-Exit always in vcpu_block()
11237 WARN_ON_ONCE(r == -EBUSY); in vcpu_block()
11244 switch(vcpu->arch.mp_state) { in vcpu_block()
11250 vcpu->arch.apf.halted = false; in vcpu_block()
11261 /* Called within kvm->srcu read side. */
11266 vcpu->run->exit_reason = KVM_EXIT_UNKNOWN; in vcpu_run()
11275 vcpu->arch.at_instruction_boundary = false; in vcpu_run()
11295 vcpu->run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN; in vcpu_run()
11296 ++vcpu->stat.request_irq_exits; in vcpu_run()
11316 * local APIC is in-kernel, the run loop will detect the non-runnable in __kvm_emulate_halt()
11321 ++vcpu->stat.halt_exits; in __kvm_emulate_halt()
11328 vcpu->run->exit_reason = reason; in __kvm_emulate_halt()
11343 * TODO: we might be squashing a GUESTDBG_SINGLESTEP-triggered in kvm_emulate_halt()
11385 return vcpu->arch.preempted_in_kernel; in kvm_arch_vcpu_preempted_in_kernel()
11390 if (READ_ONCE(vcpu->arch.pv.pv_unhalted)) in kvm_arch_dy_runnable()
11410 BUG_ON(!vcpu->arch.pio.count); in complete_emulated_pio()
11435 struct kvm_run *run = vcpu->run; in complete_emulated_mmio()
11439 BUG_ON(!vcpu->mmio_needed); in complete_emulated_mmio()
11442 frag = &vcpu->mmio_fragments[vcpu->mmio_cur_fragment]; in complete_emulated_mmio()
11443 len = min(8u, frag->len); in complete_emulated_mmio()
11444 if (!vcpu->mmio_is_write) in complete_emulated_mmio()
11445 memcpy(frag->data, run->mmio.data, len); in complete_emulated_mmio()
11447 if (frag->len <= 8) { in complete_emulated_mmio()
11450 vcpu->mmio_cur_fragment++; in complete_emulated_mmio()
11453 frag->data += len; in complete_emulated_mmio()
11454 frag->gpa += len; in complete_emulated_mmio()
11455 frag->len -= len; in complete_emulated_mmio()
11458 if (vcpu->mmio_cur_fragment >= vcpu->mmio_nr_fragments) { in complete_emulated_mmio()
11459 vcpu->mmio_needed = 0; in complete_emulated_mmio()
11461 /* FIXME: return into emulator if single-stepping. */ in complete_emulated_mmio()
11462 if (vcpu->mmio_is_write) in complete_emulated_mmio()
11464 vcpu->mmio_read_completed = 1; in complete_emulated_mmio()
11468 run->exit_reason = KVM_EXIT_MMIO; in complete_emulated_mmio()
11469 run->mmio.phys_addr = frag->gpa; in complete_emulated_mmio()
11470 if (vcpu->mmio_is_write) in complete_emulated_mmio()
11471 memcpy(run->mmio.data, frag->data, min(8u, frag->len)); in complete_emulated_mmio()
11472 run->mmio.len = min(8u, frag->len); in complete_emulated_mmio()
11473 run->mmio.is_write = vcpu->mmio_is_write; in complete_emulated_mmio()
11474 vcpu->arch.complete_userspace_io = complete_emulated_mmio; in complete_emulated_mmio()
11481 /* Exclude PKRU, it's restored separately immediately after VM-Exit. */ in kvm_load_guest_fpu()
11482 fpu_swap_kvm_fpstate(&vcpu->arch.guest_fpu, true); in kvm_load_guest_fpu()
11489 fpu_swap_kvm_fpstate(&vcpu->arch.guest_fpu, false); in kvm_put_guest_fpu()
11490 ++vcpu->stat.fpu_reload; in kvm_put_guest_fpu()
11496 struct kvm_queued_exception *ex = &vcpu->arch.exception; in kvm_arch_vcpu_ioctl_run()
11497 struct kvm_run *kvm_run = vcpu->run; in kvm_arch_vcpu_ioctl_run()
11501 r = kvm_mmu_post_init_vm(vcpu->kvm); in kvm_arch_vcpu_ioctl_run()
11507 kvm_run->flags = 0; in kvm_arch_vcpu_ioctl_run()
11511 if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)) { in kvm_arch_vcpu_ioctl_run()
11512 if (!vcpu->wants_to_run) { in kvm_arch_vcpu_ioctl_run()
11513 r = -EINTR; in kvm_arch_vcpu_ioctl_run()
11535 r = -EAGAIN; in kvm_arch_vcpu_ioctl_run()
11537 r = -EINTR; in kvm_arch_vcpu_ioctl_run()
11538 kvm_run->exit_reason = KVM_EXIT_INTR; in kvm_arch_vcpu_ioctl_run()
11539 ++vcpu->stat.signal_exits; in kvm_arch_vcpu_ioctl_run()
11544 sync_valid_fields = kvm_sync_valid_fields(vcpu->kvm); in kvm_arch_vcpu_ioctl_run()
11545 if ((kvm_run->kvm_valid_regs & ~sync_valid_fields) || in kvm_arch_vcpu_ioctl_run()
11546 (kvm_run->kvm_dirty_regs & ~sync_valid_fields)) { in kvm_arch_vcpu_ioctl_run()
11547 r = -EINVAL; in kvm_arch_vcpu_ioctl_run()
11551 if (kvm_run->kvm_dirty_regs) { in kvm_arch_vcpu_ioctl_run()
11557 /* re-sync apic's tpr */ in kvm_arch_vcpu_ioctl_run()
11559 if (kvm_set_cr8(vcpu, kvm_run->cr8) != 0) { in kvm_arch_vcpu_ioctl_run()
11560 r = -EINVAL; in kvm_arch_vcpu_ioctl_run()
11567 * a pending VM-Exit if L1 wants to intercept the exception. in kvm_arch_vcpu_ioctl_run()
11569 if (vcpu->arch.exception_from_userspace && is_guest_mode(vcpu) && in kvm_arch_vcpu_ioctl_run()
11570 kvm_x86_ops.nested_ops->is_exception_vmexit(vcpu, ex->vector, in kvm_arch_vcpu_ioctl_run()
11571 ex->error_code)) { in kvm_arch_vcpu_ioctl_run()
11572 kvm_queue_exception_vmexit(vcpu, ex->vector, in kvm_arch_vcpu_ioctl_run()
11573 ex->has_error_code, ex->error_code, in kvm_arch_vcpu_ioctl_run()
11574 ex->has_payload, ex->payload); in kvm_arch_vcpu_ioctl_run()
11575 ex->injected = false; in kvm_arch_vcpu_ioctl_run()
11576 ex->pending = false; in kvm_arch_vcpu_ioctl_run()
11578 vcpu->arch.exception_from_userspace = false; in kvm_arch_vcpu_ioctl_run()
11580 if (unlikely(vcpu->arch.complete_userspace_io)) { in kvm_arch_vcpu_ioctl_run()
11581 int (*cui)(struct kvm_vcpu *) = vcpu->arch.complete_userspace_io; in kvm_arch_vcpu_ioctl_run()
11582 vcpu->arch.complete_userspace_io = NULL; in kvm_arch_vcpu_ioctl_run()
11587 WARN_ON_ONCE(vcpu->arch.pio.count); in kvm_arch_vcpu_ioctl_run()
11588 WARN_ON_ONCE(vcpu->mmio_needed); in kvm_arch_vcpu_ioctl_run()
11591 if (!vcpu->wants_to_run) { in kvm_arch_vcpu_ioctl_run()
11592 r = -EINTR; in kvm_arch_vcpu_ioctl_run()
11604 if (kvm_run->kvm_valid_regs && likely(!vcpu->arch.guest_state_protected)) in kvm_arch_vcpu_ioctl_run()
11616 if (vcpu->arch.emulate_regs_need_sync_to_vcpu) { in __get_regs()
11624 emulator_writeback_register_cache(vcpu->arch.emulate_ctxt); in __get_regs()
11625 vcpu->arch.emulate_regs_need_sync_to_vcpu = false; in __get_regs()
11627 regs->rax = kvm_rax_read(vcpu); in __get_regs()
11628 regs->rbx = kvm_rbx_read(vcpu); in __get_regs()
11629 regs->rcx = kvm_rcx_read(vcpu); in __get_regs()
11630 regs->rdx = kvm_rdx_read(vcpu); in __get_regs()
11631 regs->rsi = kvm_rsi_read(vcpu); in __get_regs()
11632 regs->rdi = kvm_rdi_read(vcpu); in __get_regs()
11633 regs->rsp = kvm_rsp_read(vcpu); in __get_regs()
11634 regs->rbp = kvm_rbp_read(vcpu); in __get_regs()
11636 regs->r8 = kvm_r8_read(vcpu); in __get_regs()
11637 regs->r9 = kvm_r9_read(vcpu); in __get_regs()
11638 regs->r10 = kvm_r10_read(vcpu); in __get_regs()
11639 regs->r11 = kvm_r11_read(vcpu); in __get_regs()
11640 regs->r12 = kvm_r12_read(vcpu); in __get_regs()
11641 regs->r13 = kvm_r13_read(vcpu); in __get_regs()
11642 regs->r14 = kvm_r14_read(vcpu); in __get_regs()
11643 regs->r15 = kvm_r15_read(vcpu); in __get_regs()
11646 regs->rip = kvm_rip_read(vcpu); in __get_regs()
11647 regs->rflags = kvm_get_rflags(vcpu); in __get_regs()
11652 if (vcpu->kvm->arch.has_protected_state && in kvm_arch_vcpu_ioctl_get_regs()
11653 vcpu->arch.guest_state_protected) in kvm_arch_vcpu_ioctl_get_regs()
11654 return -EINVAL; in kvm_arch_vcpu_ioctl_get_regs()
11664 vcpu->arch.emulate_regs_need_sync_from_vcpu = true; in __set_regs()
11665 vcpu->arch.emulate_regs_need_sync_to_vcpu = false; in __set_regs()
11667 kvm_rax_write(vcpu, regs->rax); in __set_regs()
11668 kvm_rbx_write(vcpu, regs->rbx); in __set_regs()
11669 kvm_rcx_write(vcpu, regs->rcx); in __set_regs()
11670 kvm_rdx_write(vcpu, regs->rdx); in __set_regs()
11671 kvm_rsi_write(vcpu, regs->rsi); in __set_regs()
11672 kvm_rdi_write(vcpu, regs->rdi); in __set_regs()
11673 kvm_rsp_write(vcpu, regs->rsp); in __set_regs()
11674 kvm_rbp_write(vcpu, regs->rbp); in __set_regs()
11676 kvm_r8_write(vcpu, regs->r8); in __set_regs()
11677 kvm_r9_write(vcpu, regs->r9); in __set_regs()
11678 kvm_r10_write(vcpu, regs->r10); in __set_regs()
11679 kvm_r11_write(vcpu, regs->r11); in __set_regs()
11680 kvm_r12_write(vcpu, regs->r12); in __set_regs()
11681 kvm_r13_write(vcpu, regs->r13); in __set_regs()
11682 kvm_r14_write(vcpu, regs->r14); in __set_regs()
11683 kvm_r15_write(vcpu, regs->r15); in __set_regs()
11686 kvm_rip_write(vcpu, regs->rip); in __set_regs()
11687 kvm_set_rflags(vcpu, regs->rflags | X86_EFLAGS_FIXED); in __set_regs()
11689 vcpu->arch.exception.pending = false; in __set_regs()
11690 vcpu->arch.exception_vmexit.pending = false; in __set_regs()
11697 if (vcpu->kvm->arch.has_protected_state && in kvm_arch_vcpu_ioctl_set_regs()
11698 vcpu->arch.guest_state_protected) in kvm_arch_vcpu_ioctl_set_regs()
11699 return -EINVAL; in kvm_arch_vcpu_ioctl_set_regs()
11711 if (vcpu->arch.guest_state_protected) in __get_sregs_common()
11714 kvm_get_segment(vcpu, &sregs->cs, VCPU_SREG_CS); in __get_sregs_common()
11715 kvm_get_segment(vcpu, &sregs->ds, VCPU_SREG_DS); in __get_sregs_common()
11716 kvm_get_segment(vcpu, &sregs->es, VCPU_SREG_ES); in __get_sregs_common()
11717 kvm_get_segment(vcpu, &sregs->fs, VCPU_SREG_FS); in __get_sregs_common()
11718 kvm_get_segment(vcpu, &sregs->gs, VCPU_SREG_GS); in __get_sregs_common()
11719 kvm_get_segment(vcpu, &sregs->ss, VCPU_SREG_SS); in __get_sregs_common()
11721 kvm_get_segment(vcpu, &sregs->tr, VCPU_SREG_TR); in __get_sregs_common()
11722 kvm_get_segment(vcpu, &sregs->ldt, VCPU_SREG_LDTR); in __get_sregs_common()
11725 sregs->idt.limit = dt.size; in __get_sregs_common()
11726 sregs->idt.base = dt.address; in __get_sregs_common()
11728 sregs->gdt.limit = dt.size; in __get_sregs_common()
11729 sregs->gdt.base = dt.address; in __get_sregs_common()
11731 sregs->cr2 = vcpu->arch.cr2; in __get_sregs_common()
11732 sregs->cr3 = kvm_read_cr3(vcpu); in __get_sregs_common()
11735 sregs->cr0 = kvm_read_cr0(vcpu); in __get_sregs_common()
11736 sregs->cr4 = kvm_read_cr4(vcpu); in __get_sregs_common()
11737 sregs->cr8 = kvm_get_cr8(vcpu); in __get_sregs_common()
11738 sregs->efer = vcpu->arch.efer; in __get_sregs_common()
11739 sregs->apic_base = vcpu->arch.apic_base; in __get_sregs_common()
11746 if (vcpu->arch.guest_state_protected) in __get_sregs()
11749 if (vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft) in __get_sregs()
11750 set_bit(vcpu->arch.interrupt.nr, in __get_sregs()
11751 (unsigned long *)sregs->interrupt_bitmap); in __get_sregs()
11760 if (vcpu->arch.guest_state_protected) in __get_sregs2()
11765 sregs2->pdptrs[i] = kvm_pdptr_read(vcpu, i); in __get_sregs2()
11766 sregs2->flags |= KVM_SREGS2_FLAGS_PDPTRS_VALID; in __get_sregs2()
11773 if (vcpu->kvm->arch.has_protected_state && in kvm_arch_vcpu_ioctl_get_sregs()
11774 vcpu->arch.guest_state_protected) in kvm_arch_vcpu_ioctl_get_sregs()
11775 return -EINVAL; in kvm_arch_vcpu_ioctl_get_sregs()
11799 if ((vcpu->arch.mp_state == KVM_MP_STATE_HALTED || in kvm_arch_vcpu_ioctl_get_mpstate()
11800 vcpu->arch.mp_state == KVM_MP_STATE_AP_RESET_HOLD) && in kvm_arch_vcpu_ioctl_get_mpstate()
11801 vcpu->arch.pv.pv_unhalted) in kvm_arch_vcpu_ioctl_get_mpstate()
11802 mp_state->mp_state = KVM_MP_STATE_RUNNABLE; in kvm_arch_vcpu_ioctl_get_mpstate()
11804 mp_state->mp_state = vcpu->arch.mp_state; in kvm_arch_vcpu_ioctl_get_mpstate()
11818 int ret = -EINVAL; in kvm_arch_vcpu_ioctl_set_mpstate()
11822 switch (mp_state->mp_state) { in kvm_arch_vcpu_ioctl_set_mpstate()
11845 if ((!kvm_apic_init_sipi_allowed(vcpu) || vcpu->arch.smi_pending) && in kvm_arch_vcpu_ioctl_set_mpstate()
11846 (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED || in kvm_arch_vcpu_ioctl_set_mpstate()
11847 mp_state->mp_state == KVM_MP_STATE_INIT_RECEIVED)) in kvm_arch_vcpu_ioctl_set_mpstate()
11850 if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) { in kvm_arch_vcpu_ioctl_set_mpstate()
11852 set_bit(KVM_APIC_SIPI, &vcpu->arch.apic->pending_events); in kvm_arch_vcpu_ioctl_set_mpstate()
11854 kvm_set_mp_state(vcpu, mp_state->mp_state); in kvm_arch_vcpu_ioctl_set_mpstate()
11866 struct x86_emulate_ctxt *ctxt = vcpu->arch.emulate_ctxt; in kvm_task_switch()
11878 if (ret || vcpu->mmio_needed) { in kvm_task_switch()
11879 vcpu->mmio_needed = false; in kvm_task_switch()
11880 vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR; in kvm_task_switch()
11881 vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION; in kvm_task_switch()
11882 vcpu->run->internal.ndata = 0; in kvm_task_switch()
11886 kvm_rip_write(vcpu, ctxt->eip); in kvm_task_switch()
11887 kvm_set_rflags(vcpu, ctxt->eflags); in kvm_task_switch()
11894 if ((sregs->efer & EFER_LME) && (sregs->cr0 & X86_CR0_PG)) { in kvm_is_valid_sregs()
11897 * 64-bit mode (though maybe in a 32-bit code segment). in kvm_is_valid_sregs()
11900 if (!(sregs->cr4 & X86_CR4_PAE) || !(sregs->efer & EFER_LMA)) in kvm_is_valid_sregs()
11902 if (!kvm_vcpu_is_legal_cr3(vcpu, sregs->cr3)) in kvm_is_valid_sregs()
11906 * Not in 64-bit mode: EFER.LMA is clear and the code in kvm_is_valid_sregs()
11907 * segment cannot be 64-bit. in kvm_is_valid_sregs()
11909 if (sregs->efer & EFER_LMA || sregs->cs.l) in kvm_is_valid_sregs()
11913 return kvm_is_valid_cr4(vcpu, sregs->cr4) && in kvm_is_valid_sregs()
11914 kvm_is_valid_cr0(vcpu, sregs->cr0); in kvm_is_valid_sregs()
11924 return -EINVAL; in __set_sregs_common()
11926 if (kvm_apic_set_base(vcpu, sregs->apic_base, true)) in __set_sregs_common()
11927 return -EINVAL; in __set_sregs_common()
11929 if (vcpu->arch.guest_state_protected) in __set_sregs_common()
11932 dt.size = sregs->idt.limit; in __set_sregs_common()
11933 dt.address = sregs->idt.base; in __set_sregs_common()
11935 dt.size = sregs->gdt.limit; in __set_sregs_common()
11936 dt.address = sregs->gdt.base; in __set_sregs_common()
11939 vcpu->arch.cr2 = sregs->cr2; in __set_sregs_common()
11940 *mmu_reset_needed |= kvm_read_cr3(vcpu) != sregs->cr3; in __set_sregs_common()
11941 vcpu->arch.cr3 = sregs->cr3; in __set_sregs_common()
11943 kvm_x86_call(post_set_cr3)(vcpu, sregs->cr3); in __set_sregs_common()
11945 kvm_set_cr8(vcpu, sregs->cr8); in __set_sregs_common()
11947 *mmu_reset_needed |= vcpu->arch.efer != sregs->efer; in __set_sregs_common()
11948 kvm_x86_call(set_efer)(vcpu, sregs->efer); in __set_sregs_common()
11950 *mmu_reset_needed |= kvm_read_cr0(vcpu) != sregs->cr0; in __set_sregs_common()
11951 kvm_x86_call(set_cr0)(vcpu, sregs->cr0); in __set_sregs_common()
11953 *mmu_reset_needed |= kvm_read_cr4(vcpu) != sregs->cr4; in __set_sregs_common()
11954 kvm_x86_call(set_cr4)(vcpu, sregs->cr4); in __set_sregs_common()
11957 idx = srcu_read_lock(&vcpu->kvm->srcu); in __set_sregs_common()
11962 srcu_read_unlock(&vcpu->kvm->srcu, idx); in __set_sregs_common()
11965 kvm_set_segment(vcpu, &sregs->cs, VCPU_SREG_CS); in __set_sregs_common()
11966 kvm_set_segment(vcpu, &sregs->ds, VCPU_SREG_DS); in __set_sregs_common()
11967 kvm_set_segment(vcpu, &sregs->es, VCPU_SREG_ES); in __set_sregs_common()
11968 kvm_set_segment(vcpu, &sregs->fs, VCPU_SREG_FS); in __set_sregs_common()
11969 kvm_set_segment(vcpu, &sregs->gs, VCPU_SREG_GS); in __set_sregs_common()
11970 kvm_set_segment(vcpu, &sregs->ss, VCPU_SREG_SS); in __set_sregs_common()
11972 kvm_set_segment(vcpu, &sregs->tr, VCPU_SREG_TR); in __set_sregs_common()
11973 kvm_set_segment(vcpu, &sregs->ldt, VCPU_SREG_LDTR); in __set_sregs_common()
11979 sregs->cs.selector == 0xf000 && sregs->cs.base == 0xffff0000 && in __set_sregs_common()
12002 (const unsigned long *)sregs->interrupt_bitmap, max_bits); in __set_sregs()
12015 bool valid_pdptrs = sregs2->flags & KVM_SREGS2_FLAGS_PDPTRS_VALID; in __set_sregs2()
12016 bool pae = (sregs2->cr0 & X86_CR0_PG) && (sregs2->cr4 & X86_CR4_PAE) && in __set_sregs2()
12017 !(sregs2->efer & EFER_LMA); in __set_sregs2()
12020 if (sregs2->flags & ~KVM_SREGS2_FLAGS_PDPTRS_VALID) in __set_sregs2()
12021 return -EINVAL; in __set_sregs2()
12023 if (valid_pdptrs && (!pae || vcpu->arch.guest_state_protected)) in __set_sregs2()
12024 return -EINVAL; in __set_sregs2()
12033 kvm_pdptr_write(vcpu, i, sregs2->pdptrs[i]); in __set_sregs2()
12037 vcpu->arch.pdptrs_from_userspace = true; in __set_sregs2()
12051 if (vcpu->kvm->arch.has_protected_state && in kvm_arch_vcpu_ioctl_set_sregs()
12052 vcpu->arch.guest_state_protected) in kvm_arch_vcpu_ioctl_set_sregs()
12053 return -EINVAL; in kvm_arch_vcpu_ioctl_set_sregs()
12070 down_write(&kvm->arch.apicv_update_lock); in kvm_arch_vcpu_guestdbg_update_apicv_inhibit()
12073 if (vcpu->guest_debug & KVM_GUESTDBG_BLOCKIRQ) { in kvm_arch_vcpu_guestdbg_update_apicv_inhibit()
12079 up_write(&kvm->arch.apicv_update_lock); in kvm_arch_vcpu_guestdbg_update_apicv_inhibit()
12088 if (vcpu->arch.guest_state_protected) in kvm_arch_vcpu_ioctl_set_guest_debug()
12089 return -EINVAL; in kvm_arch_vcpu_ioctl_set_guest_debug()
12093 if (dbg->control & (KVM_GUESTDBG_INJECT_DB | KVM_GUESTDBG_INJECT_BP)) { in kvm_arch_vcpu_ioctl_set_guest_debug()
12094 r = -EBUSY; in kvm_arch_vcpu_ioctl_set_guest_debug()
12097 if (dbg->control & KVM_GUESTDBG_INJECT_DB) in kvm_arch_vcpu_ioctl_set_guest_debug()
12109 vcpu->guest_debug = dbg->control; in kvm_arch_vcpu_ioctl_set_guest_debug()
12110 if (!(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)) in kvm_arch_vcpu_ioctl_set_guest_debug()
12111 vcpu->guest_debug = 0; in kvm_arch_vcpu_ioctl_set_guest_debug()
12113 if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) { in kvm_arch_vcpu_ioctl_set_guest_debug()
12115 vcpu->arch.eff_db[i] = dbg->arch.debugreg[i]; in kvm_arch_vcpu_ioctl_set_guest_debug()
12116 vcpu->arch.guest_debug_dr7 = dbg->arch.debugreg[7]; in kvm_arch_vcpu_ioctl_set_guest_debug()
12119 vcpu->arch.eff_db[i] = vcpu->arch.db[i]; in kvm_arch_vcpu_ioctl_set_guest_debug()
12123 if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) in kvm_arch_vcpu_ioctl_set_guest_debug()
12124 vcpu->arch.singlestep_rip = kvm_get_linear_rip(vcpu); in kvm_arch_vcpu_ioctl_set_guest_debug()
12134 kvm_arch_vcpu_guestdbg_update_apicv_inhibit(vcpu->kvm); in kvm_arch_vcpu_ioctl_set_guest_debug()
12149 unsigned long vaddr = tr->linear_address; in kvm_arch_vcpu_ioctl_translate()
12155 idx = srcu_read_lock(&vcpu->kvm->srcu); in kvm_arch_vcpu_ioctl_translate()
12157 srcu_read_unlock(&vcpu->kvm->srcu, idx); in kvm_arch_vcpu_ioctl_translate()
12158 tr->physical_address = gpa; in kvm_arch_vcpu_ioctl_translate()
12159 tr->valid = gpa != INVALID_GPA; in kvm_arch_vcpu_ioctl_translate()
12160 tr->writeable = 1; in kvm_arch_vcpu_ioctl_translate()
12161 tr->usermode = 0; in kvm_arch_vcpu_ioctl_translate()
12171 if (fpstate_is_confidential(&vcpu->arch.guest_fpu)) in kvm_arch_vcpu_ioctl_get_fpu()
12172 return vcpu->kvm->arch.has_protected_state ? -EINVAL : 0; in kvm_arch_vcpu_ioctl_get_fpu()
12176 fxsave = &vcpu->arch.guest_fpu.fpstate->regs.fxsave; in kvm_arch_vcpu_ioctl_get_fpu()
12177 memcpy(fpu->fpr, fxsave->st_space, 128); in kvm_arch_vcpu_ioctl_get_fpu()
12178 fpu->fcw = fxsave->cwd; in kvm_arch_vcpu_ioctl_get_fpu()
12179 fpu->fsw = fxsave->swd; in kvm_arch_vcpu_ioctl_get_fpu()
12180 fpu->ftwx = fxsave->twd; in kvm_arch_vcpu_ioctl_get_fpu()
12181 fpu->last_opcode = fxsave->fop; in kvm_arch_vcpu_ioctl_get_fpu()
12182 fpu->last_ip = fxsave->rip; in kvm_arch_vcpu_ioctl_get_fpu()
12183 fpu->last_dp = fxsave->rdp; in kvm_arch_vcpu_ioctl_get_fpu()
12184 memcpy(fpu->xmm, fxsave->xmm_space, sizeof(fxsave->xmm_space)); in kvm_arch_vcpu_ioctl_get_fpu()
12194 if (fpstate_is_confidential(&vcpu->arch.guest_fpu)) in kvm_arch_vcpu_ioctl_set_fpu()
12195 return vcpu->kvm->arch.has_protected_state ? -EINVAL : 0; in kvm_arch_vcpu_ioctl_set_fpu()
12199 fxsave = &vcpu->arch.guest_fpu.fpstate->regs.fxsave; in kvm_arch_vcpu_ioctl_set_fpu()
12201 memcpy(fxsave->st_space, fpu->fpr, 128); in kvm_arch_vcpu_ioctl_set_fpu()
12202 fxsave->cwd = fpu->fcw; in kvm_arch_vcpu_ioctl_set_fpu()
12203 fxsave->swd = fpu->fsw; in kvm_arch_vcpu_ioctl_set_fpu()
12204 fxsave->twd = fpu->ftwx; in kvm_arch_vcpu_ioctl_set_fpu()
12205 fxsave->fop = fpu->last_opcode; in kvm_arch_vcpu_ioctl_set_fpu()
12206 fxsave->rip = fpu->last_ip; in kvm_arch_vcpu_ioctl_set_fpu()
12207 fxsave->rdp = fpu->last_dp; in kvm_arch_vcpu_ioctl_set_fpu()
12208 memcpy(fxsave->xmm_space, fpu->xmm, sizeof(fxsave->xmm_space)); in kvm_arch_vcpu_ioctl_set_fpu()
12218 if (vcpu->run->kvm_valid_regs & KVM_SYNC_X86_REGS) in store_regs()
12219 __get_regs(vcpu, &vcpu->run->s.regs.regs); in store_regs()
12221 if (vcpu->run->kvm_valid_regs & KVM_SYNC_X86_SREGS) in store_regs()
12222 __get_sregs(vcpu, &vcpu->run->s.regs.sregs); in store_regs()
12224 if (vcpu->run->kvm_valid_regs & KVM_SYNC_X86_EVENTS) in store_regs()
12226 vcpu, &vcpu->run->s.regs.events); in store_regs()
12231 if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_REGS) { in sync_regs()
12232 __set_regs(vcpu, &vcpu->run->s.regs.regs); in sync_regs()
12233 vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_REGS; in sync_regs()
12236 if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_SREGS) { in sync_regs()
12237 struct kvm_sregs sregs = vcpu->run->s.regs.sregs; in sync_regs()
12240 return -EINVAL; in sync_regs()
12242 vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_SREGS; in sync_regs()
12245 if (vcpu->run->kvm_dirty_regs & KVM_SYNC_X86_EVENTS) { in sync_regs()
12246 struct kvm_vcpu_events events = vcpu->run->s.regs.events; in sync_regs()
12249 return -EINVAL; in sync_regs()
12251 vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_EVENTS; in sync_regs()
12259 if (kvm_check_tsc_unstable() && kvm->created_vcpus) in kvm_arch_vcpu_precreate()
12263 if (!kvm->arch.max_vcpu_ids) in kvm_arch_vcpu_precreate()
12264 kvm->arch.max_vcpu_ids = KVM_MAX_VCPU_IDS; in kvm_arch_vcpu_precreate()
12266 if (id >= kvm->arch.max_vcpu_ids) in kvm_arch_vcpu_precreate()
12267 return -EINVAL; in kvm_arch_vcpu_precreate()
12277 vcpu->arch.last_vmentry_cpu = -1; in kvm_arch_vcpu_create()
12278 vcpu->arch.regs_avail = ~0; in kvm_arch_vcpu_create()
12279 vcpu->arch.regs_dirty = ~0; in kvm_arch_vcpu_create()
12281 kvm_gpc_init(&vcpu->arch.pv_time, vcpu->kvm); in kvm_arch_vcpu_create()
12283 if (!irqchip_in_kernel(vcpu->kvm) || kvm_vcpu_is_reset_bsp(vcpu)) in kvm_arch_vcpu_create()
12296 r = -ENOMEM; in kvm_arch_vcpu_create()
12301 vcpu->arch.pio_data = page_address(page); in kvm_arch_vcpu_create()
12303 vcpu->arch.mce_banks = kcalloc(KVM_MAX_MCE_BANKS * 4, sizeof(u64), in kvm_arch_vcpu_create()
12305 vcpu->arch.mci_ctl2_banks = kcalloc(KVM_MAX_MCE_BANKS, sizeof(u64), in kvm_arch_vcpu_create()
12307 if (!vcpu->arch.mce_banks || !vcpu->arch.mci_ctl2_banks) in kvm_arch_vcpu_create()
12309 vcpu->arch.mcg_cap = KVM_MAX_MCE_BANKS; in kvm_arch_vcpu_create()
12311 if (!zalloc_cpumask_var(&vcpu->arch.wbinvd_dirty_mask, in kvm_arch_vcpu_create()
12318 if (!fpu_alloc_guest_fpstate(&vcpu->arch.guest_fpu)) { in kvm_arch_vcpu_create()
12325 if (kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_STUFF_FEATURE_MSRS)) { in kvm_arch_vcpu_create()
12326 vcpu->arch.arch_capabilities = kvm_get_arch_capabilities(); in kvm_arch_vcpu_create()
12327 vcpu->arch.msr_platform_info = MSR_PLATFORM_INFO_CPUID_FAULT; in kvm_arch_vcpu_create()
12328 vcpu->arch.perf_capabilities = kvm_caps.supported_perf_cap; in kvm_arch_vcpu_create()
12332 vcpu->arch.pending_external_vector = -1; in kvm_arch_vcpu_create()
12333 vcpu->arch.preempted_in_kernel = false; in kvm_arch_vcpu_create()
12336 vcpu->arch.hv_root_tdp = INVALID_PAGE; in kvm_arch_vcpu_create()
12346 kvm_set_tsc_khz(vcpu, vcpu->kvm->arch.default_tsc_khz); in kvm_arch_vcpu_create()
12353 fpu_free_guest_fpstate(&vcpu->arch.guest_fpu); in kvm_arch_vcpu_create()
12355 kmem_cache_free(x86_emulator_cache, vcpu->arch.emulate_ctxt); in kvm_arch_vcpu_create()
12357 free_cpumask_var(vcpu->arch.wbinvd_dirty_mask); in kvm_arch_vcpu_create()
12359 kfree(vcpu->arch.mce_banks); in kvm_arch_vcpu_create()
12360 kfree(vcpu->arch.mci_ctl2_banks); in kvm_arch_vcpu_create()
12361 free_page((unsigned long)vcpu->arch.pio_data); in kvm_arch_vcpu_create()
12371 struct kvm *kvm = vcpu->kvm; in kvm_arch_vcpu_postcreate()
12373 if (mutex_lock_killable(&vcpu->mutex)) in kvm_arch_vcpu_postcreate()
12380 vcpu->arch.msr_kvm_poll_control = 1; in kvm_arch_vcpu_postcreate()
12382 mutex_unlock(&vcpu->mutex); in kvm_arch_vcpu_postcreate()
12384 if (kvmclock_periodic_sync && vcpu->vcpu_idx == 0) in kvm_arch_vcpu_postcreate()
12385 schedule_delayed_work(&kvm->arch.kvmclock_sync_work, in kvm_arch_vcpu_postcreate()
12400 kmem_cache_free(x86_emulator_cache, vcpu->arch.emulate_ctxt); in kvm_arch_vcpu_destroy()
12401 free_cpumask_var(vcpu->arch.wbinvd_dirty_mask); in kvm_arch_vcpu_destroy()
12402 fpu_free_guest_fpstate(&vcpu->arch.guest_fpu); in kvm_arch_vcpu_destroy()
12407 kfree(vcpu->arch.mce_banks); in kvm_arch_vcpu_destroy()
12408 kfree(vcpu->arch.mci_ctl2_banks); in kvm_arch_vcpu_destroy()
12410 idx = srcu_read_lock(&vcpu->kvm->srcu); in kvm_arch_vcpu_destroy()
12412 srcu_read_unlock(&vcpu->kvm->srcu, idx); in kvm_arch_vcpu_destroy()
12413 free_page((unsigned long)vcpu->arch.pio_data); in kvm_arch_vcpu_destroy()
12414 kvfree(vcpu->arch.cpuid_entries); in kvm_arch_vcpu_destroy()
12424 * Several of the "set" flows, e.g. ->set_cr0(), read other registers in kvm_vcpu_reset()
12434 * SVM doesn't unconditionally VM-Exit on INIT and SHUTDOWN, thus it's in kvm_vcpu_reset()
12445 vcpu->arch.hflags = 0; in kvm_vcpu_reset()
12447 vcpu->arch.smi_pending = 0; in kvm_vcpu_reset()
12448 vcpu->arch.smi_count = 0; in kvm_vcpu_reset()
12449 atomic_set(&vcpu->arch.nmi_queued, 0); in kvm_vcpu_reset()
12450 vcpu->arch.nmi_pending = 0; in kvm_vcpu_reset()
12451 vcpu->arch.nmi_injected = false; in kvm_vcpu_reset()
12455 memset(vcpu->arch.db, 0, sizeof(vcpu->arch.db)); in kvm_vcpu_reset()
12457 vcpu->arch.dr6 = DR6_ACTIVE_LOW; in kvm_vcpu_reset()
12458 vcpu->arch.dr7 = DR7_FIXED_1; in kvm_vcpu_reset()
12461 vcpu->arch.cr2 = 0; in kvm_vcpu_reset()
12464 vcpu->arch.apf.msr_en_val = 0; in kvm_vcpu_reset()
12465 vcpu->arch.apf.msr_int_val = 0; in kvm_vcpu_reset()
12466 vcpu->arch.st.msr_val = 0; in kvm_vcpu_reset()
12472 vcpu->arch.apf.halted = false; in kvm_vcpu_reset()
12474 if (vcpu->arch.guest_fpu.fpstate && kvm_mpx_supported()) { in kvm_vcpu_reset()
12475 struct fpstate *fpstate = vcpu->arch.guest_fpu.fpstate; in kvm_vcpu_reset()
12492 vcpu->arch.smbase = 0x30000; in kvm_vcpu_reset()
12494 vcpu->arch.pat = MSR_IA32_CR_PAT_DEFAULT; in kvm_vcpu_reset()
12496 vcpu->arch.msr_misc_features_enables = 0; in kvm_vcpu_reset()
12497 vcpu->arch.ia32_misc_enable_msr = MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL | in kvm_vcpu_reset()
12505 memset(vcpu->arch.regs, 0, sizeof(vcpu->arch.regs)); in kvm_vcpu_reset()
12516 kvm_rdx_write(vcpu, cpuid_0x1 ? cpuid_0x1->eax : 0x600); in kvm_vcpu_reset()
12523 vcpu->arch.cr3 = 0; in kvm_vcpu_reset()
12545 * which PCIDs have to be flushed. However, CR0.WP and the paging-related in kvm_vcpu_reset()
12615 if (!stable && vcpu->cpu == smp_processor_id()) in kvm_arch_enable_virtualization_cpu()
12617 if (stable && vcpu->arch.last_host_tsc > local_tsc) { in kvm_arch_enable_virtualization_cpu()
12619 if (vcpu->arch.last_host_tsc > max_tsc) in kvm_arch_enable_virtualization_cpu()
12620 max_tsc = vcpu->arch.last_host_tsc; in kvm_arch_enable_virtualization_cpu()
12638 * the adjustment will be applied. Note that we accumulate in kvm_arch_enable_virtualization_cpu()
12650 * N.B. - this code below runs only on platforms with reliable TSC, in kvm_arch_enable_virtualization_cpu()
12664 u64 delta_cyc = max_tsc - local_tsc; in kvm_arch_enable_virtualization_cpu()
12666 kvm->arch.backwards_tsc_observed = true; in kvm_arch_enable_virtualization_cpu()
12668 vcpu->arch.tsc_offset_adjustment += delta_cyc; in kvm_arch_enable_virtualization_cpu()
12669 vcpu->arch.last_host_tsc = local_tsc; in kvm_arch_enable_virtualization_cpu()
12679 kvm->arch.last_tsc_nsec = 0; in kvm_arch_enable_virtualization_cpu()
12680 kvm->arch.last_tsc_write = 0; in kvm_arch_enable_virtualization_cpu()
12695 return vcpu->kvm->arch.bsp_vcpu_id == vcpu->vcpu_id; in kvm_vcpu_is_reset_bsp()
12700 return (vcpu->arch.apic_base & MSR_IA32_APICBASE_BSP) != 0; in kvm_vcpu_is_bsp()
12706 kfree(kvm->arch.hv_pa_pg); in kvm_arch_free_vm()
12718 return -EINVAL; in kvm_arch_init_vm()
12720 kvm->arch.vm_type = type; in kvm_arch_init_vm()
12721 kvm->arch.has_private_mem = in kvm_arch_init_vm()
12724 kvm->arch.pre_fault_allowed = in kvm_arch_init_vm()
12737 INIT_HLIST_HEAD(&kvm->arch.mask_notifier_list); in kvm_arch_init_vm()
12738 atomic_set(&kvm->arch.noncoherent_dma_count, 0); in kvm_arch_init_vm()
12741 set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap); in kvm_arch_init_vm()
12742 /* Reserve bit 1 of irq_sources_bitmap for irqfd-resampler */ in kvm_arch_init_vm()
12744 &kvm->arch.irq_sources_bitmap); in kvm_arch_init_vm()
12746 raw_spin_lock_init(&kvm->arch.tsc_write_lock); in kvm_arch_init_vm()
12747 mutex_init(&kvm->arch.apic_map_lock); in kvm_arch_init_vm()
12748 seqcount_raw_spinlock_init(&kvm->arch.pvclock_sc, &kvm->arch.tsc_write_lock); in kvm_arch_init_vm()
12749 kvm->arch.kvmclock_offset = -get_kvmclock_base_ns(); in kvm_arch_init_vm()
12751 raw_spin_lock_irqsave(&kvm->arch.tsc_write_lock, flags); in kvm_arch_init_vm()
12753 raw_spin_unlock_irqrestore(&kvm->arch.tsc_write_lock, flags); in kvm_arch_init_vm()
12755 kvm->arch.default_tsc_khz = max_tsc_khz ? : tsc_khz; in kvm_arch_init_vm()
12756 kvm->arch.apic_bus_cycle_ns = APIC_BUS_CYCLE_NS_DEFAULT; in kvm_arch_init_vm()
12757 kvm->arch.guest_can_read_msr_platform_info = true; in kvm_arch_init_vm()
12758 kvm->arch.enable_pmu = enable_pmu; in kvm_arch_init_vm()
12761 spin_lock_init(&kvm->arch.hv_root_tdp_lock); in kvm_arch_init_vm()
12762 kvm->arch.hv_root_tdp = INVALID_PAGE; in kvm_arch_init_vm()
12765 INIT_DELAYED_WORK(&kvm->arch.kvmclock_update_work, kvmclock_update_fn); in kvm_arch_init_vm()
12766 INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn); in kvm_arch_init_vm()
12779 once_init(&kvm->arch.nx_once); in kvm_arch_init_vm()
12802 * -errno: on error
12807 * GPA->HVA translation will not change. However, the HVA is a user
12819 lockdep_assert_held(&kvm->slots_lock); in __x86_set_memory_region()
12822 return ERR_PTR_USR(-EINVAL); in __x86_set_memory_region()
12826 if (slot && slot->npages) in __x86_set_memory_region()
12827 return ERR_PTR_USR(-EEXIST); in __x86_set_memory_region()
12838 if (!slot || !slot->npages) in __x86_set_memory_region()
12841 old_npages = slot->npages; in __x86_set_memory_region()
12842 hva = slot->userspace_addr; in __x86_set_memory_region()
12870 * is unsafe, i.e. will lead to use-after-free. The PIT also needs to in kvm_arch_pre_destroy_vm()
12873 cancel_delayed_work_sync(&kvm->arch.kvmclock_sync_work); in kvm_arch_pre_destroy_vm()
12874 cancel_delayed_work_sync(&kvm->arch.kvmclock_update_work); in kvm_arch_pre_destroy_vm()
12883 if (current->mm == kvm->mm) { in kvm_arch_destroy_vm()
12889 mutex_lock(&kvm->slots_lock); in kvm_arch_destroy_vm()
12895 mutex_unlock(&kvm->slots_lock); in kvm_arch_destroy_vm()
12898 kvm_free_msr_filter(srcu_dereference_check(kvm->arch.msr_filter, &kvm->srcu, 1)); in kvm_arch_destroy_vm()
12901 kvfree(rcu_dereference_check(kvm->arch.apic_map, 1)); in kvm_arch_destroy_vm()
12902 kfree(srcu_dereference_check(kvm->arch.pmu_event_filter, &kvm->srcu, 1)); in kvm_arch_destroy_vm()
12915 vfree(slot->arch.rmap[i]); in memslot_rmap_free()
12916 slot->arch.rmap[i] = NULL; in memslot_rmap_free()
12927 vfree(slot->arch.lpage_info[i - 1]); in kvm_arch_free_memslot()
12928 slot->arch.lpage_info[i - 1] = NULL; in kvm_arch_free_memslot()
12936 const int sz = sizeof(*slot->arch.rmap[0]); in memslot_rmap_alloc()
12943 if (slot->arch.rmap[i]) in memslot_rmap_alloc()
12946 slot->arch.rmap[i] = __vcalloc(lpages, sz, GFP_KERNEL_ACCOUNT); in memslot_rmap_alloc()
12947 if (!slot->arch.rmap[i]) { in memslot_rmap_alloc()
12949 return -ENOMEM; in memslot_rmap_alloc()
12959 unsigned long npages = slot->npages; in kvm_alloc_memslot_metadata()
12967 memset(&slot->arch, 0, sizeof(slot->arch)); in kvm_alloc_memslot_metadata()
12987 slot->arch.lpage_info[i - 1] = linfo; in kvm_alloc_memslot_metadata()
12989 if (slot->base_gfn & (KVM_PAGES_PER_HPAGE(level) - 1)) in kvm_alloc_memslot_metadata()
12991 if ((slot->base_gfn + npages) & (KVM_PAGES_PER_HPAGE(level) - 1)) in kvm_alloc_memslot_metadata()
12992 linfo[lpages - 1].disallow_lpage = 1; in kvm_alloc_memslot_metadata()
12993 ugfn = slot->userspace_addr >> PAGE_SHIFT; in kvm_alloc_memslot_metadata()
12998 if ((slot->base_gfn ^ ugfn) & (KVM_PAGES_PER_HPAGE(level) - 1)) { in kvm_alloc_memslot_metadata()
13019 vfree(slot->arch.lpage_info[i - 1]); in kvm_alloc_memslot_metadata()
13020 slot->arch.lpage_info[i - 1] = NULL; in kvm_alloc_memslot_metadata()
13022 return -ENOMEM; in kvm_alloc_memslot_metadata()
13031 * memslots->generation has been incremented. in kvm_arch_memslots_updated()
13036 /* Force re-initialization of steal_time cache */ in kvm_arch_memslots_updated()
13051 return -EINVAL; in kvm_arch_prepare_memory_region()
13054 if ((new->base_gfn + new->npages - 1) > kvm_mmu_max_gfn()) in kvm_arch_prepare_memory_region()
13055 return -EINVAL; in kvm_arch_prepare_memory_region()
13057 if (kvm_is_gfn_alias(kvm, new->base_gfn + new->npages - 1)) in kvm_arch_prepare_memory_region()
13058 return -EINVAL; in kvm_arch_prepare_memory_region()
13064 memcpy(&new->arch, &old->arch, sizeof(old->arch)); in kvm_arch_prepare_memory_region()
13066 return -EIO; in kvm_arch_prepare_memory_region()
13079 nr_slots = atomic_read(&kvm->nr_memslots_dirty_logging); in kvm_mmu_update_cpu_dirty_logging()
13089 u32 old_flags = old ? old->flags : 0; in kvm_mmu_slot_apply_flags()
13090 u32 new_flags = new ? new->flags : 0; in kvm_mmu_slot_apply_flags()
13110 * CREATE: No shadow pages exist, thus nothing to write-protect in kvm_mmu_slot_apply_flags()
13119 * READONLY and non-flags changes were filtered out above, and the only in kvm_mmu_slot_apply_flags()
13139 * Initially-all-set does not require write protecting any page, in kvm_mmu_slot_apply_flags()
13164 * write-protected before returning to userspace, i.e. before in kvm_mmu_slot_apply_flags()
13171 * Specifically, KVM also write-protects guest page tables to in kvm_mmu_slot_apply_flags()
13180 * To handle these scenarios, KVM uses a separate software-only in kvm_mmu_slot_apply_flags()
13181 * bit (MMU-writable) to track if a SPTE is !writable due to in kvm_mmu_slot_apply_flags()
13182 * a guest page table being write-protected (KVM clears the in kvm_mmu_slot_apply_flags()
13183 * MMU-writable flag when write-protecting for shadow paging). in kvm_mmu_slot_apply_flags()
13185 * The use of MMU-writable is also the primary motivation for in kvm_mmu_slot_apply_flags()
13188 * !MMU-writable SPTE, KVM must flush if it encounters any in kvm_mmu_slot_apply_flags()
13189 * MMU-writable SPTE regardless of whether the actual hardware in kvm_mmu_slot_apply_flags()
13192 * write access" helpers to ignore MMU-writable entirely. in kvm_mmu_slot_apply_flags()
13195 * access-tracked SPTEs is particularly relevant). in kvm_mmu_slot_apply_flags()
13209 if (!kvm->arch.n_requested_mmu_pages && in kvm_arch_commit_memory_region()
13213 nr_mmu_pages = kvm->nr_memslot_pages / KVM_MEMSLOT_PAGES_TO_MMU_PAGES_RATIO; in kvm_arch_commit_memory_region()
13229 if (vcpu->arch.guest_state_protected) in kvm_arch_vcpu_in_kernel()
13239 if (vcpu->arch.guest_state_protected) in kvm_arch_vcpu_get_ip()
13258 if (vcpu->arch.guest_state_protected) in kvm_get_linear_rip()
13279 if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) in kvm_get_rflags()
13287 if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP && in __kvm_set_rflags()
13288 kvm_is_linear_rip(vcpu, vcpu->arch.singlestep_rip)) in __kvm_set_rflags()
13309 return (key + 1) & (ASYNC_PF_PER_VCPU - 1); in kvm_async_pf_next_probe()
13316 while (vcpu->arch.apf.gfns[key] != ~0) in kvm_add_async_pf_gfn()
13319 vcpu->arch.apf.gfns[key] = gfn; in kvm_add_async_pf_gfn()
13328 (vcpu->arch.apf.gfns[key] != gfn && in kvm_async_pf_gfn_slot()
13329 vcpu->arch.apf.gfns[key] != ~0); i++) in kvm_async_pf_gfn_slot()
13337 return vcpu->arch.apf.gfns[kvm_async_pf_gfn_slot(vcpu, gfn)] == gfn; in kvm_find_async_pf_gfn()
13346 if (WARN_ON_ONCE(vcpu->arch.apf.gfns[i] != gfn)) in kvm_del_async_pf_gfn()
13350 vcpu->arch.apf.gfns[i] = ~0; in kvm_del_async_pf_gfn()
13353 if (vcpu->arch.apf.gfns[j] == ~0) in kvm_del_async_pf_gfn()
13355 k = kvm_async_pf_hash_fn(vcpu->arch.apf.gfns[j]); in kvm_del_async_pf_gfn()
13362 vcpu->arch.apf.gfns[i] = vcpu->arch.apf.gfns[j]; in kvm_del_async_pf_gfn()
13371 return kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apf.data, &reason, in apf_put_user_notpresent()
13379 return kvm_write_guest_offset_cached(vcpu->kvm, &vcpu->arch.apf.data, in apf_put_user_ready()
13388 if (kvm_read_guest_offset_cached(vcpu->kvm, &vcpu->arch.apf.data, in apf_pageready_slot_free()
13401 if (!vcpu->arch.apf.send_always && in kvm_can_deliver_async_pf()
13402 (vcpu->arch.guest_state_protected || !kvm_x86_call(get_cpl)(vcpu))) in kvm_can_deliver_async_pf()
13410 return vcpu->arch.apf.delivery_as_pf_vmexit; in kvm_can_deliver_async_pf()
13428 if (kvm_hlt_in_guest(vcpu->kvm) && !kvm_can_deliver_async_pf(vcpu)) in kvm_can_do_async_pf()
13443 trace_kvm_async_pf_not_present(work->arch.token, work->cr2_or_gpa); in kvm_arch_async_page_not_present()
13444 kvm_add_async_pf_gfn(vcpu, work->arch.gfn); in kvm_arch_async_page_not_present()
13452 fault.address = work->arch.token; in kvm_arch_async_page_not_present()
13475 .vector = vcpu->arch.apf.vec in kvm_arch_async_page_present()
13478 if (work->wakeup_all) in kvm_arch_async_page_present()
13479 work->arch.token = ~0; /* broadcast wakeup */ in kvm_arch_async_page_present()
13481 kvm_del_async_pf_gfn(vcpu, work->arch.gfn); in kvm_arch_async_page_present()
13482 trace_kvm_async_pf_ready(work->arch.token, work->cr2_or_gpa); in kvm_arch_async_page_present()
13484 if ((work->wakeup_all || work->notpresent_injected) && in kvm_arch_async_page_present()
13486 !apf_put_user_ready(vcpu, work->arch.token)) { in kvm_arch_async_page_present()
13487 vcpu->arch.apf.pageready_pending = true; in kvm_arch_async_page_present()
13491 vcpu->arch.apf.halted = false; in kvm_arch_async_page_present()
13498 if (!vcpu->arch.apf.pageready_pending) in kvm_arch_async_page_present_queued()
13512 if (atomic_inc_return(&kvm->arch.assigned_device_count) == 1) in kvm_arch_start_assignment()
13519 atomic_dec(&kvm->arch.assigned_device_count); in kvm_arch_end_assignment()
13525 return raw_atomic_read(&kvm->arch.assigned_device_count); in kvm_arch_has_assigned_device()
13532 * Non-coherent DMA assignment and de-assignment may affect whether or in kvm_noncoherent_dma_assignment_start_or_stop()
13535 * (or last) non-coherent device is (un)registered to so that new SPTEs in kvm_noncoherent_dma_assignment_start_or_stop()
13544 if (atomic_inc_return(&kvm->arch.noncoherent_dma_count) == 1) in kvm_arch_register_noncoherent_dma()
13551 if (!atomic_dec_return(&kvm->arch.noncoherent_dma_count)) in kvm_arch_unregister_noncoherent_dma()
13558 return atomic_read(&kvm->arch.noncoherent_dma_count); in kvm_arch_has_noncoherent_dma()
13567 struct kvm *kvm = irqfd->kvm; in kvm_arch_irq_bypass_add_producer()
13570 kvm_arch_start_assignment(irqfd->kvm); in kvm_arch_irq_bypass_add_producer()
13572 spin_lock_irq(&kvm->irqfds.lock); in kvm_arch_irq_bypass_add_producer()
13573 irqfd->producer = prod; in kvm_arch_irq_bypass_add_producer()
13575 ret = kvm_x86_call(pi_update_irte)(irqfd->kvm, in kvm_arch_irq_bypass_add_producer()
13576 prod->irq, irqfd->gsi, 1); in kvm_arch_irq_bypass_add_producer()
13578 kvm_arch_end_assignment(irqfd->kvm); in kvm_arch_irq_bypass_add_producer()
13580 spin_unlock_irq(&kvm->irqfds.lock); in kvm_arch_irq_bypass_add_producer()
13592 struct kvm *kvm = irqfd->kvm; in kvm_arch_irq_bypass_del_producer()
13594 WARN_ON(irqfd->producer != prod); in kvm_arch_irq_bypass_del_producer()
13598 * remapped mode, so we can re-use the current implementation in kvm_arch_irq_bypass_del_producer()
13602 spin_lock_irq(&kvm->irqfds.lock); in kvm_arch_irq_bypass_del_producer()
13603 irqfd->producer = NULL; in kvm_arch_irq_bypass_del_producer()
13605 ret = kvm_x86_call(pi_update_irte)(irqfd->kvm, in kvm_arch_irq_bypass_del_producer()
13606 prod->irq, irqfd->gsi, 0); in kvm_arch_irq_bypass_del_producer()
13609 " fails: %d\n", irqfd->consumer.token, ret); in kvm_arch_irq_bypass_del_producer()
13611 spin_unlock_irq(&kvm->irqfds.lock); in kvm_arch_irq_bypass_del_producer()
13614 kvm_arch_end_assignment(irqfd->kvm); in kvm_arch_irq_bypass_del_producer()
13626 if (old->type != KVM_IRQ_ROUTING_MSI || in kvm_arch_irqfd_route_changed()
13627 new->type != KVM_IRQ_ROUTING_MSI) in kvm_arch_irqfd_route_changed()
13630 return !!memcmp(&old->msi, &new->msi, sizeof(new->msi)); in kvm_arch_irqfd_route_changed()
13640 return (vcpu->arch.msr_kvm_poll_control & 1) == 0; in kvm_arch_no_poll()
13686 struct kvm_mmu *mmu = vcpu->arch.walk_mmu; in kvm_fixup_and_inject_pf_error()
13692 mmu->gva_to_gpa(vcpu, mmu, gva, access, &fault) != INVALID_GPA) { in kvm_fixup_and_inject_pf_error()
13694 * If vcpu->arch.walk_mmu->gva_to_gpa succeeded, the page in kvm_fixup_and_inject_pf_error()
13705 vcpu->arch.walk_mmu->inject_page_fault(vcpu, &fault); in kvm_fixup_and_inject_pf_error()
13718 if (KVM_BUG_ON(!e, vcpu->kvm)) in kvm_handle_memory_failure()
13719 return -EIO; in kvm_handle_memory_failure()
13729 * doesn't seem to be a real use-case behind such requests, just return in kvm_handle_memory_failure()
13785 * page tables, so a non-global flush just degenerates to a in kvm_handle_invpcid()
13804 struct kvm_run *run = vcpu->run; in complete_sev_es_emulated_mmio()
13808 BUG_ON(!vcpu->mmio_needed); in complete_sev_es_emulated_mmio()
13811 frag = &vcpu->mmio_fragments[vcpu->mmio_cur_fragment]; in complete_sev_es_emulated_mmio()
13812 len = min(8u, frag->len); in complete_sev_es_emulated_mmio()
13813 if (!vcpu->mmio_is_write) in complete_sev_es_emulated_mmio()
13814 memcpy(frag->data, run->mmio.data, len); in complete_sev_es_emulated_mmio()
13816 if (frag->len <= 8) { in complete_sev_es_emulated_mmio()
13819 vcpu->mmio_cur_fragment++; in complete_sev_es_emulated_mmio()
13822 frag->data += len; in complete_sev_es_emulated_mmio()
13823 frag->gpa += len; in complete_sev_es_emulated_mmio()
13824 frag->len -= len; in complete_sev_es_emulated_mmio()
13827 if (vcpu->mmio_cur_fragment >= vcpu->mmio_nr_fragments) { in complete_sev_es_emulated_mmio()
13828 vcpu->mmio_needed = 0; in complete_sev_es_emulated_mmio()
13836 run->mmio.phys_addr = frag->gpa; in complete_sev_es_emulated_mmio()
13837 run->mmio.len = min(8u, frag->len); in complete_sev_es_emulated_mmio()
13838 run->mmio.is_write = vcpu->mmio_is_write; in complete_sev_es_emulated_mmio()
13839 if (run->mmio.is_write) in complete_sev_es_emulated_mmio()
13840 memcpy(run->mmio.data, frag->data, min(8u, frag->len)); in complete_sev_es_emulated_mmio()
13841 run->exit_reason = KVM_EXIT_MMIO; in complete_sev_es_emulated_mmio()
13843 vcpu->arch.complete_userspace_io = complete_sev_es_emulated_mmio; in complete_sev_es_emulated_mmio()
13855 return -EINVAL; in kvm_sev_es_mmio_write()
13861 bytes -= handled; in kvm_sev_es_mmio_write()
13866 frag = vcpu->mmio_fragments; in kvm_sev_es_mmio_write()
13867 vcpu->mmio_nr_fragments = 1; in kvm_sev_es_mmio_write()
13868 frag->len = bytes; in kvm_sev_es_mmio_write()
13869 frag->gpa = gpa; in kvm_sev_es_mmio_write()
13870 frag->data = data; in kvm_sev_es_mmio_write()
13872 vcpu->mmio_needed = 1; in kvm_sev_es_mmio_write()
13873 vcpu->mmio_cur_fragment = 0; in kvm_sev_es_mmio_write()
13875 vcpu->run->mmio.phys_addr = gpa; in kvm_sev_es_mmio_write()
13876 vcpu->run->mmio.len = min(8u, frag->len); in kvm_sev_es_mmio_write()
13877 vcpu->run->mmio.is_write = 1; in kvm_sev_es_mmio_write()
13878 memcpy(vcpu->run->mmio.data, frag->data, min(8u, frag->len)); in kvm_sev_es_mmio_write()
13879 vcpu->run->exit_reason = KVM_EXIT_MMIO; in kvm_sev_es_mmio_write()
13881 vcpu->arch.complete_userspace_io = complete_sev_es_emulated_mmio; in kvm_sev_es_mmio_write()
13894 return -EINVAL; in kvm_sev_es_mmio_read()
13900 bytes -= handled; in kvm_sev_es_mmio_read()
13905 frag = vcpu->mmio_fragments; in kvm_sev_es_mmio_read()
13906 vcpu->mmio_nr_fragments = 1; in kvm_sev_es_mmio_read()
13907 frag->len = bytes; in kvm_sev_es_mmio_read()
13908 frag->gpa = gpa; in kvm_sev_es_mmio_read()
13909 frag->data = data; in kvm_sev_es_mmio_read()
13911 vcpu->mmio_needed = 1; in kvm_sev_es_mmio_read()
13912 vcpu->mmio_cur_fragment = 0; in kvm_sev_es_mmio_read()
13914 vcpu->run->mmio.phys_addr = gpa; in kvm_sev_es_mmio_read()
13915 vcpu->run->mmio.len = min(8u, frag->len); in kvm_sev_es_mmio_read()
13916 vcpu->run->mmio.is_write = 0; in kvm_sev_es_mmio_read()
13917 vcpu->run->exit_reason = KVM_EXIT_MMIO; in kvm_sev_es_mmio_read()
13919 vcpu->arch.complete_userspace_io = complete_sev_es_emulated_mmio; in kvm_sev_es_mmio_read()
13927 vcpu->arch.sev_pio_count -= count; in advance_sev_es_emulated_pio()
13928 vcpu->arch.sev_pio_data += count * size; in advance_sev_es_emulated_pio()
13936 int size = vcpu->arch.pio.size; in complete_sev_es_emulated_outs()
13937 int port = vcpu->arch.pio.port; in complete_sev_es_emulated_outs()
13939 vcpu->arch.pio.count = 0; in complete_sev_es_emulated_outs()
13940 if (vcpu->arch.sev_pio_count) in complete_sev_es_emulated_outs()
13950 min_t(unsigned int, PAGE_SIZE / size, vcpu->arch.sev_pio_count); in kvm_sev_es_outs()
13951 int ret = emulator_pio_out(vcpu, size, port, vcpu->arch.sev_pio_data, count); in kvm_sev_es_outs()
13959 if (!vcpu->arch.sev_pio_count) in kvm_sev_es_outs()
13963 vcpu->arch.complete_userspace_io = complete_sev_es_emulated_outs; in kvm_sev_es_outs()
13972 unsigned count = vcpu->arch.pio.count; in complete_sev_es_emulated_ins()
13973 int size = vcpu->arch.pio.size; in complete_sev_es_emulated_ins()
13974 int port = vcpu->arch.pio.port; in complete_sev_es_emulated_ins()
13976 complete_emulator_pio_in(vcpu, vcpu->arch.sev_pio_data); in complete_sev_es_emulated_ins()
13978 if (vcpu->arch.sev_pio_count) in complete_sev_es_emulated_ins()
13988 min_t(unsigned int, PAGE_SIZE / size, vcpu->arch.sev_pio_count); in kvm_sev_es_ins()
13989 if (!emulator_pio_in(vcpu, size, port, vcpu->arch.sev_pio_data, count)) in kvm_sev_es_ins()
13994 if (!vcpu->arch.sev_pio_count) in kvm_sev_es_ins()
13998 vcpu->arch.complete_userspace_io = complete_sev_es_emulated_ins; in kvm_sev_es_ins()
14006 vcpu->arch.sev_pio_data = data; in kvm_sev_es_string_io()
14007 vcpu->arch.sev_pio_count = count; in kvm_sev_es_string_io()