178 	 * We don't need to force sync to shadow VMCS because  in nested_vmx_failValid()
179 	 * VM_INSTRUCTION_ERROR is not shadowed. Enlightened VMCS 'shadows' all  in nested_vmx_failValid()
193 	 * failValid writes the error number to the current VMCS, which  in nested_vmx_fail()
194 	 * can't be done if there isn't a current VMCS.  in nested_vmx_fail()
254 	 * memory area pointer by vmptr as Enlightened VMCS (as there's no good  in nested_evmcs_handle_vmclear()
294 static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs)  in vmx_switch_vmcs()  argument
300 	if (WARN_ON_ONCE(vmx->loaded_vmcs == vmcs))  in vmx_switch_vmcs()
305 	vmx->loaded_vmcs = vmcs;  in vmx_switch_vmcs()
369  * Ensure that the current vmcs of the logical processor is the
489 	 * check.  All VMCS fields involved are 32 bits, but Intel CPUs never  in nested_vmx_is_exception_vmexit()
1243 	 * addresses of VMX structures (e.g. VMCS) to 32-bits.  in vmx_restore_vmx_basic()
1536  * Copy the writable VMCS shadow fields back to the VMCS12, in case they have
1541  * configured to support "VMWRITE to any supported field in the VMCS").
1545 	struct vmcs *shadow_vmcs = vmx->vmcs01.shadow_vmcs;  in copy_shadow_to_vmcs12()
1565 	vmcs_load(vmx->loaded_vmcs->vmcs);  in copy_shadow_to_vmcs12()
1580 	struct vmcs *shadow_vmcs = vmx->vmcs01.shadow_vmcs;  in copy_vmcs12_to_shadow()
1601 	vmcs_load(vmx->loaded_vmcs->vmcs);  in copy_vmcs12_to_shadow()
2361 		/* VMCS shadowing for L2 is emulated for now */  in prepare_vmcs02_early()
2393 	 * loading PERF_GLOBAL_CTRL via the VMCS for L1, then KVM will want to  in prepare_vmcs02_early()
2561  * L2 guest. L1 has a vmcs for L2 (vmcs12), and this function "merges" it
2564  * needs. In addition to modifying the active vmcs (which is vmcs02), this
3621 	 * Can't VMLAUNCH or VMRESUME a shadow VMCS. Despite the fact  in nested_vmx_run()
3622 	 * that there *is* a valid VMCS pointer, RFLAGS.CF is set  in nested_vmx_run()
3633 		/* Enlightened VMCS doesn't have launch state */  in nested_vmx_run()
3991  * with the 'pending debug exceptions' field, write the payload to the VMCS
4444  * and we want to prepare to run its L1 parent. L1 keeps a vmcs for L2 (vmcs12),
4448  * Note that we do not have to copy here all VMCS fields, just those that
4464 	 * On VM-Exit due to a failed VM-Entry, the VMCS isn't marked launched  in prepare_vmcs12()
4507  * This function should be called when the active VMCS is L1's (vmcs01).
4783 		 * Enlightened VMCS after migration and we still need to  in nested_vmx_vmexit()
4866 	/* Update any VMCS fields that might have changed while L2 ran */  in nested_vmx_vmexit()
4935 	 * flag and the VM-instruction error field of the VMCS  in nested_vmx_vmexit()
5112  * Allocate a shadow VMCS and associate it with the currently loaded
5113  * VMCS, unless such a shadow VMCS already exists. The newly allocated
5114  * VMCS is also VMCLEARed, so that it is ready for use.
5116 static struct vmcs *alloc_shadow_vmcs(struct kvm_vcpu *vcpu)  in alloc_shadow_vmcs()
5122 	 * KVM allocates a shadow VMCS only when L1 executes VMXON and frees it  in alloc_shadow_vmcs()
5125 	 * should be impossible to already have an allocated shadow VMCS.  KVM  in alloc_shadow_vmcs()
5126 	 * doesn't support virtualization of VMCS shadowing, so vmcs01 should  in alloc_shadow_vmcs()
5127 	 * always be the loaded VMCS.  in alloc_shadow_vmcs()
5261 	 * VMCS revision identifier  in handle_vmxon()
5348 		 * for VMCLEAR includes a "ensure that data for VMCS referenced  in handle_vmclear()
5399 		 * In VMX non-root operation, when the VMCS-link pointer is INVALID_GPA,  in handle_vmread()
5419 		 * enlightened VMCS is active VMREAD/VMWRITE instructions are  in handle_vmread()
5422 		 * genuine Hyper-V. Allow VMREAD from an enlightened VMCS as a  in handle_vmread()
5424 		 * Note, enlightened VMCS is incompatible with shadow VMCS so  in handle_vmread()
5509 	 * In VMX non-root operation, when the VMCS-link pointer is INVALID_GPA,  in handle_vmwrite()
5537 	 * VMCS," then the "read-only" fields are actually read/write.  in handle_vmwrite()
5572 		 * shadow VMCS is up-to-date.  in handle_vmwrite()
5581 			vmcs_load(vmx->loaded_vmcs->vmcs);  in handle_vmwrite()
6426 	 * vmcs.VM_EXIT_INTR_INFO is only valid for EXCEPTION_NMI exits.  For  in nested_vmx_reflect_vmexit()
6524 	 * in the shadow or enlightened vmcs linked to vmcs01, unless  in vmx_get_nested_state()
6658 	/* Empty 'VMXON' state is permitted if no VMCS loaded */  in vmx_set_nested_state()
6773  * Indexing into the vmcs12 uses the VMCS encoding rotated left by 6.  Undo
6781 	 * Note these are the so called "index" of the VMCS field encoding, not  in nested_vmx_calc_vmcs_enum_msr()
6925 	 * We can emulate "VMCS shadowing," even if the hardware  in nested_vmx_setup_secondary_ctls()
7002 	 * guest, and the VMCS structure we give it - not about the  in nested_vmx_setup_basic()