diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-04-15 23:34:53 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-04-21 16:13:07 +0300 |
| commit | 5addc235199f15ae964e7ac6b20cf43f4a661573 (patch) | |
| tree | 3a087d2882574416aa96c29b8227724ea423918e /arch/x86/kvm/vmx/vmx.h | |
| parent | ec0241f3bbe155a58455ce4a6057be5db6529b0f (diff) | |
| download | linux-5addc235199f15ae964e7ac6b20cf43f4a661573.tar.xz | |
KVM: VMX: Cache vmcs.EXIT_QUALIFICATION using arch avail_reg flags
Introduce a new "extended register" type, EXIT_INFO_1 (to pair with the
nomenclature in .get_exit_info()), and use it to cache VMX's
vmcs.EXIT_QUALIFICATION.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200415203454.8296-5-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 | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index 78c99a60fa49..a13eafec67fc 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -210,6 +210,7 @@ struct vcpu_vmx { */ bool guest_state_loaded; + unsigned long exit_qualification; u32 exit_intr_info; u32 idt_vectoring_info; ulong rflags; @@ -449,7 +450,8 @@ static inline void vmx_register_cache_reset(struct kvm_vcpu *vcpu) | (1 << VCPU_EXREG_RFLAGS) | (1 << VCPU_EXREG_PDPTR) | (1 << VCPU_EXREG_SEGMENTS) - | (1 << VCPU_EXREG_CR3)); + | (1 << VCPU_EXREG_CR3) + | (1 << VCPU_EXREG_EXIT_INFO_1)); vcpu->arch.regs_dirty = 0; } @@ -493,6 +495,17 @@ static inline struct pi_desc *vcpu_to_pi_desc(struct kvm_vcpu *vcpu) return &(to_vmx(vcpu)->pi_desc); } +static inline unsigned long vmx_get_exit_qual(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + + if (!kvm_register_is_available(vcpu, VCPU_EXREG_EXIT_INFO_1)) { + kvm_register_mark_available(vcpu, VCPU_EXREG_EXIT_INFO_1); + vmx->exit_qualification = vmcs_readl(EXIT_QUALIFICATION); + } + return vmx->exit_qualification; +} + 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); |