diff options
Diffstat (limited to 'arch/x86/kvm/vmx/nested.h')
| -rw-r--r-- | arch/x86/kvm/vmx/nested.h | 78 |
1 files changed, 35 insertions, 43 deletions
diff --git a/arch/x86/kvm/vmx/nested.h b/arch/x86/kvm/vmx/nested.h index 9aeda46f473e..6312c9541c3c 100644 --- a/arch/x86/kvm/vmx/nested.h +++ b/arch/x86/kvm/vmx/nested.h @@ -17,22 +17,22 @@ enum nvmx_vmentry_status { }; void vmx_leave_nested(struct kvm_vcpu *vcpu); -void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps); +void nested_vmx_setup_ctls_msrs(struct vmcs_config *vmcs_conf, u32 ept_caps); void nested_vmx_hardware_unsetup(void); __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *)); void nested_vmx_set_vmcs_shadowing_bitmap(void); void nested_vmx_free_vcpu(struct kvm_vcpu *vcpu); enum nvmx_vmentry_status nested_vmx_enter_non_root_mode(struct kvm_vcpu *vcpu, bool from_vmentry); -bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason); -void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason, +bool nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu); +void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 vm_exit_reason, u32 exit_intr_info, unsigned long exit_qualification); void nested_sync_vmcs12_to_shadow(struct kvm_vcpu *vcpu); int vmx_set_vmx_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); int vmx_get_vmx_msr(struct nested_vmx_msrs *msrs, u32 msr_index, u64 *pdata); int get_vmx_mem_address(struct kvm_vcpu *vcpu, unsigned long exit_qualification, u32 vmx_instruction_info, bool wr, int len, gva_t *ret); -void nested_vmx_pmu_entry_exit_ctls_update(struct kvm_vcpu *vcpu); +void nested_mark_vmcs12_pages_dirty(struct kvm_vcpu *vcpu); bool nested_vmx_check_io_bitmaps(struct kvm_vcpu *vcpu, unsigned int port, int size); @@ -46,21 +46,28 @@ static inline struct vmcs12 *get_shadow_vmcs12(struct kvm_vcpu *vcpu) return to_vmx(vcpu)->nested.cached_shadow_vmcs12; } +/* + * Note: the same condition is checked against the state provided by userspace + * in vmx_set_nested_state; if it is satisfied, the nested state must include + * the VMCS12. + */ static inline int vmx_has_valid_vmcs12(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); - /* - * In case we do two consecutive get/set_nested_state()s while L2 was - * running hv_evmcs may end up not being mapped (we map it from - * nested_vmx_run()/vmx_vcpu_run()). Check is_guest_mode() as we always - * have vmcs12 if it is true. - */ - return is_guest_mode(vcpu) || vmx->nested.current_vmptr != -1ull || - vmx->nested.hv_evmcs; + /* 'hv_evmcs_vmptr' can also be EVMPTR_MAP_PENDING here */ + return vmx->nested.current_vmptr != -1ull || + vmx->nested.hv_evmcs_vmptr != EVMPTR_INVALID; +} + +static inline u16 nested_get_vpid02(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + + return vmx->nested.vpid02 ? vmx->nested.vpid02 : vmx->vpid; } -static inline unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu) +static inline unsigned long nested_ept_get_eptp(struct kvm_vcpu *vcpu) { /* return the page table to be shadowed - in our case, EPT12 */ return get_vmcs12(vcpu)->ept_pointer; @@ -68,35 +75,7 @@ static inline unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu) static inline bool nested_ept_ad_enabled(struct kvm_vcpu *vcpu) { - return nested_ept_get_cr3(vcpu) & VMX_EPTP_AD_ENABLE_BIT; -} - -/* - * Reflect a VM Exit into L1. - */ -static inline int nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu, - u32 exit_reason) -{ - u32 exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO); - - /* - * At this point, the exit interruption info in exit_intr_info - * is only valid for EXCEPTION_NMI exits. For EXTERNAL_INTERRUPT - * we need to query the in-kernel LAPIC. - */ - WARN_ON(exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT); - if ((exit_intr_info & - (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) == - (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) { - struct vmcs12 *vmcs12 = get_vmcs12(vcpu); - - vmcs12->vm_exit_intr_error_code = - vmcs_read32(VM_EXIT_INTR_ERROR_CODE); - } - - nested_vmx_vmexit(vcpu, exit_reason, exit_intr_info, - vmcs_readl(EXIT_QUALIFICATION)); - return 1; + return nested_ept_get_eptp(vcpu) & VMX_EPTP_AD_ENABLE_BIT; } /* @@ -244,6 +223,11 @@ static inline bool nested_cpu_has_save_preemption_timer(struct vmcs12 *vmcs12) VM_EXIT_SAVE_VMX_PREEMPTION_TIMER; } +static inline bool nested_exit_on_nmi(struct kvm_vcpu *vcpu) +{ + return nested_cpu_has_nmi_exiting(get_vmcs12(vcpu)); +} + /* * In nested virtualization, check if L1 asked to exit on external interrupts. * For most existing hypervisors, this will always return true. @@ -254,6 +238,11 @@ static inline bool nested_exit_on_intr(struct kvm_vcpu *vcpu) PIN_BASED_EXT_INTR_MASK; } +static inline bool nested_cpu_has_encls_exit(struct vmcs12 *vmcs12) +{ + return nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENCLS_EXITING); +} + /* * if fixed0[i] == 1: val[i] must be 1 * if fixed1[i] == 0: val[i] must be 0 @@ -290,11 +279,14 @@ static inline bool nested_cr4_valid(struct kvm_vcpu *vcpu, unsigned long val) u64 fixed0 = to_vmx(vcpu)->nested.msrs.cr4_fixed0; u64 fixed1 = to_vmx(vcpu)->nested.msrs.cr4_fixed1; - return fixed_bits_valid(val, fixed0, fixed1); + return fixed_bits_valid(val, fixed0, fixed1) && + __kvm_is_valid_cr4(vcpu, val); } /* No difference in the restrictions on guest and host CR4 in VMX operation. */ #define nested_guest_cr4_valid nested_cr4_valid #define nested_host_cr4_valid nested_cr4_valid +extern struct kvm_x86_nested_ops vmx_nested_ops; + #endif /* __KVM_X86_VMX_NESTED_H */ |