1 /* 2 * QEMU Hypervisor.framework (HVF) support 3 * 4 * Copyright Google Inc., 2017 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 * 9 */ 10 11 /* header to be included in non-HVF-specific code */ 12 13 #ifndef HVF_H 14 #define HVF_H 15 16 #include "qemu/accel.h" 17 #include "qemu/queue.h" 18 #include "exec/vaddr.h" 19 #include "qom/object.h" 20 21 #ifdef COMPILING_PER_TARGET 22 # ifdef CONFIG_HVF 23 # define CONFIG_HVF_IS_POSSIBLE 24 # endif /* !CONFIG_HVF */ 25 #else 26 # define CONFIG_HVF_IS_POSSIBLE 27 #endif /* COMPILING_PER_TARGET */ 28 29 #ifdef CONFIG_HVF_IS_POSSIBLE 30 extern bool hvf_allowed; 31 #define hvf_enabled() (hvf_allowed) 32 #else /* !CONFIG_HVF_IS_POSSIBLE */ 33 #define hvf_enabled() 0 34 #endif /* !CONFIG_HVF_IS_POSSIBLE */ 35 36 #define TYPE_HVF_ACCEL ACCEL_CLASS_NAME("hvf") 37 38 typedef struct HVFState HVFState; 39 DECLARE_INSTANCE_CHECKER(HVFState, HVF_STATE, 40 TYPE_HVF_ACCEL) 41 42 #ifdef COMPILING_PER_TARGET 43 struct hvf_sw_breakpoint { 44 vaddr pc; 45 vaddr saved_insn; 46 int use_count; 47 QTAILQ_ENTRY(hvf_sw_breakpoint) entry; 48 }; 49 50 struct hvf_sw_breakpoint *hvf_find_sw_breakpoint(CPUState *cpu, 51 vaddr pc); 52 int hvf_sw_breakpoints_active(CPUState *cpu); 53 54 int hvf_arch_insert_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp); 55 int hvf_arch_remove_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp); 56 int hvf_arch_insert_hw_breakpoint(vaddr addr, vaddr len, int type); 57 int hvf_arch_remove_hw_breakpoint(vaddr addr, vaddr len, int type); 58 void hvf_arch_remove_all_hw_breakpoints(void); 59 60 /* 61 * hvf_update_guest_debug: 62 * @cs: CPUState for the CPU to update 63 * 64 * Update guest to enable or disable debugging. Per-arch specifics will be 65 * handled by calling down to hvf_arch_update_guest_debug. 66 */ 67 int hvf_update_guest_debug(CPUState *cpu); 68 void hvf_arch_update_guest_debug(CPUState *cpu); 69 70 /* 71 * Return whether the guest supports debugging. 72 */ 73 bool hvf_arch_supports_guest_debug(void); 74 #endif /* COMPILING_PER_TARGET */ 75 76 #endif 77