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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-05-07 12:17:57 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-06-18 11:47:42 +0200 |
| commit | fe7f895dae4fa5725c0459b316b3e9ee814d2583 (patch) | |
| tree | d1a559e0d41ecd20c2ae872fc946bd29194e8186 /arch/x86/kvm/vmx/nested.c | |
| parent | 2183f5645ae7e074ed1777f3de9a782dd23db248 (diff) | |
| download | lwn-fe7f895dae4fa5725c0459b316b3e9ee814d2583.tar.gz lwn-fe7f895dae4fa5725c0459b316b3e9ee814d2583.zip | |
KVM: VMX: Shadow VMCS secondary execution controls
Prepare to shadow all major control fields on a per-VMCS basis, which
allows KVM to avoid costly VMWRITEs when switching between vmcs01 and
vmcs02.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/nested.c')
| -rw-r--r-- | arch/x86/kvm/vmx/nested.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 3f80df186476..21cb6cd88765 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -192,7 +192,7 @@ static void nested_vmx_abort(struct kvm_vcpu *vcpu, u32 indicator) static void vmx_disable_shadow_vmcs(struct vcpu_vmx *vmx) { - vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL, SECONDARY_EXEC_SHADOW_VMCS); + secondary_exec_controls_clearbit(vmx, SECONDARY_EXEC_SHADOW_VMCS); vmcs_write64(VMCS_LINK_POINTER, -1ull); } @@ -287,6 +287,7 @@ static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs) vm_exit_controls_reset_shadow(vmx); pin_controls_reset_shadow(vmx); exec_controls_reset_shadow(vmx); + secondary_exec_controls_reset_shadow(vmx); vmx_segment_cache_clear(vmx); } @@ -2083,7 +2084,7 @@ static void prepare_vmcs02_early(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12) vmcs_write16(GUEST_INTR_STATUS, vmcs12->guest_intr_status); - vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control); + secondary_exec_controls_init(vmx, exec_control); } /* @@ -2853,8 +2854,8 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu) hpa = page_to_phys(vmx->nested.apic_access_page); vmcs_write64(APIC_ACCESS_ADDR, hpa); } else { - vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL, - SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES); + secondary_exec_controls_clearbit(vmx, + SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES); } } @@ -4667,8 +4668,7 @@ static void set_current_vmptr(struct vcpu_vmx *vmx, gpa_t vmptr) { vmx->nested.current_vmptr = vmptr; if (enable_shadow_vmcs) { - vmcs_set_bits(SECONDARY_VM_EXEC_CONTROL, - SECONDARY_EXEC_SHADOW_VMCS); + secondary_exec_controls_setbit(vmx, SECONDARY_EXEC_SHADOW_VMCS); vmcs_write64(VMCS_LINK_POINTER, __pa(vmx->vmcs01.shadow_vmcs)); vmx->nested.need_vmcs12_to_shadow_sync = true; |