diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-04-15 13:34:54 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-04-21 09:13:07 -0400 |
| commit | 8791585837f659943936b8e1cce9d039436ad1ca (patch) | |
| tree | 3771bdeda997bbb6182a6fa96376714bb7158ffb /arch/x86/kvm/vmx/vmx.h | |
| parent | 5addc235199f15ae964e7ac6b20cf43f4a661573 (diff) | |
KVM: VMX: Cache vmcs.EXIT_INTR_INFO using arch avail_reg flags
Introduce a new "extended register" type, EXIT_INFO_2 (to pair with the
nomenclature in .get_exit_info()), and use it to cache VMX's
vmcs.EXIT_INTR_INFO. Drop a comment in vmx_recover_nmi_blocking() that
is obsoleted by the generic caching mechanism.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200415203454.8296-6-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.h')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index a13eafec67fc..edfb739e5907 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -451,7 +451,8 @@ static inline void vmx_register_cache_reset(struct kvm_vcpu *vcpu) | (1 << VCPU_EXREG_PDPTR) | (1 << VCPU_EXREG_SEGMENTS) | (1 << VCPU_EXREG_CR3) - | (1 << VCPU_EXREG_EXIT_INFO_1)); + | (1 << VCPU_EXREG_EXIT_INFO_1) + | (1 << VCPU_EXREG_EXIT_INFO_2)); vcpu->arch.regs_dirty = 0; } @@ -506,6 +507,17 @@ static inline unsigned long vmx_get_exit_qual(struct kvm_vcpu *vcpu) return vmx->exit_qualification; } +static inline u32 vmx_get_intr_info(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + + if (!kvm_register_is_available(vcpu, VCPU_EXREG_EXIT_INFO_2)) { + kvm_register_mark_available(vcpu, VCPU_EXREG_EXIT_INFO_2); + vmx->exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO); + } + return vmx->exit_intr_info; +} + struct vmcs *alloc_vmcs_cpu(bool shadow, int cpu, gfp_t flags); void free_vmcs(struct vmcs *vmcs); int alloc_loaded_vmcs(struct loaded_vmcs *loaded_vmcs); |