diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-05-07 12:17:55 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-06-18 11:47:41 +0200 |
| commit | c5f2c76643b612ffa47e4660c8f44deba619b068 (patch) | |
| tree | d4893e980f629441b857ef9e4877e14ec0617198 /arch/x86/kvm/vmx/nested.c | |
| parent | 70f932ecdfe6b593ef6784d55d2c096aafac1510 (diff) | |
KVM: VMX: Shadow VMCS pin 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.
Shadowing pin controls also allows a future patch to remove the per-VMCS
'hv_timer_armed' flag, as the shadow copy is a superset of said flag.
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 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index cd33f3109f24..8617d305fbbd 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -285,6 +285,7 @@ static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs) vm_entry_controls_reset_shadow(vmx); vm_exit_controls_reset_shadow(vmx); + pin_controls_reset_shadow(vmx); vmx_segment_cache_clear(vmx); } @@ -2026,7 +2027,7 @@ static void prepare_vmcs02_early(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12) } else { exec_control &= ~PIN_BASED_POSTED_INTR; } - vmcs_write32(PIN_BASED_VM_EXEC_CONTROL, exec_control); + pin_controls_init(vmx, exec_control); /* * EXEC CONTROLS |