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| author |   Vitaly Kuznetsov <vkuznets@redhat.com> | 2020-01-15 18:10:12 +0100 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2020-01-27 19:59:50 +0100 |
| commit | de9bf4d4cea369355440c5afbbbc7e62302de8fd (patch) | |
| tree | 21cf93b3f140c91f31af4528a2a4a27ed9d3e823 /arch/x86/kvm | |
| parent | KVM: x86: Perform non-canonical checks in 32-bit KVM (diff) | |
| download | linux-dev-de9bf4d4cea369355440c5afbbbc7e62302de8fd.tar.xz linux-dev-de9bf4d4cea369355440c5afbbbc7e62302de8fd.zip | |
x86/kvm/hyper-v: remove stale evmcs_already_enabled check from nested_enable_evmcs()
In nested_enable_evmcs() evmcs_already_enabled check doesn't really do
anything: controls are already sanitized and we return '0' regardless.
Just drop the check.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/vmx/evmcs.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/kvm/vmx/evmcs.c b/arch/x86/kvm/vmx/evmcs.c index 72359709cdc1..89c3e0caf39f 100644 --- a/arch/x86/kvm/vmx/evmcs.c +++ b/arch/x86/kvm/vmx/evmcs.c @@ -350,17 +350,12 @@ int nested_enable_evmcs(struct kvm_vcpu *vcpu, uint16_t *vmcs_version) { struct vcpu_vmx *vmx = to_vmx(vcpu); - bool evmcs_already_enabled = vmx->nested.enlightened_vmcs_enabled; vmx->nested.enlightened_vmcs_enabled = true; if (vmcs_version) *vmcs_version = nested_get_evmcs_version(vcpu); - /* We don't support disabling the feature for simplicity. */ - if (evmcs_already_enabled) - return 0; - vmx->nested.msrs.pinbased_ctls_high &= ~EVMCS1_UNSUPPORTED_PINCTRL; vmx->nested.msrs.entry_ctls_high &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL; vmx->nested.msrs.exit_ctls_high &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL; |