diff options
| author | Sean Christopherson | 2019-05-07 21:17:55 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2019-06-18 11:47:41 +0200 |
| commit | c5f2c76643b612ffa47e4660c8f44deba619b068 (patch) | |
| tree | d4893e980f629441b857ef9e4877e14ec0617198 /arch/x86/kvm/vmx/vmx.c | |
| parent | KVM: VMX: Add builder macros for shadowing controls (diff) | |
| download | kernel-qcow2-linux-c5f2c76643b612ffa47e4660c8f44deba619b068.tar.gz kernel-qcow2-linux-c5f2c76643b612ffa47e4660c8f44deba619b068.tar.xz kernel-qcow2-linux-c5f2c76643b612ffa47e4660c8f44deba619b068.zip | |
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/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 0e722fa5e189..a709afb04c28 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -3844,7 +3844,7 @@ static void vmx_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); - vmcs_write32(PIN_BASED_VM_EXEC_CONTROL, vmx_pin_based_exec_ctrl(vmx)); + pin_controls_set(vmx, vmx_pin_based_exec_ctrl(vmx)); if (cpu_has_secondary_exec_ctrls()) { if (kvm_vcpu_apicv_active(vcpu)) vmcs_set_bits(SECONDARY_VM_EXEC_CONTROL, @@ -4042,7 +4042,7 @@ static void vmx_vcpu_setup(struct vcpu_vmx *vmx) vmcs_write64(VMCS_LINK_POINTER, -1ull); /* 22.3.1.5 */ /* Control */ - vmcs_write32(PIN_BASED_VM_EXEC_CONTROL, vmx_pin_based_exec_ctrl(vmx)); + pin_controls_init(vmx, vmx_pin_based_exec_ctrl(vmx)); vmx->hv_deadline_tsc = -1; vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, vmx_exec_control(vmx)); @@ -6366,8 +6366,7 @@ static void vmx_arm_hv_timer(struct vcpu_vmx *vmx, u32 val) { vmcs_write32(VMX_PREEMPTION_TIMER_VALUE, val); if (!vmx->loaded_vmcs->hv_timer_armed) - vmcs_set_bits(PIN_BASED_VM_EXEC_CONTROL, - PIN_BASED_VMX_PREEMPTION_TIMER); + pin_controls_setbit(vmx, PIN_BASED_VMX_PREEMPTION_TIMER); vmx->loaded_vmcs->hv_timer_armed = true; } @@ -6396,8 +6395,7 @@ static void vmx_update_hv_timer(struct kvm_vcpu *vcpu) } if (vmx->loaded_vmcs->hv_timer_armed) - vmcs_clear_bits(PIN_BASED_VM_EXEC_CONTROL, - PIN_BASED_VMX_PREEMPTION_TIMER); + pin_controls_clearbit(vmx, PIN_BASED_VMX_PREEMPTION_TIMER); vmx->loaded_vmcs->hv_timer_armed = false; } |