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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-05-07 09:06:39 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-06-18 11:47:38 +0200 |
| commit | c27e5b0d139b8728abd6b087cb0d3b2eae6ab079 (patch) | |
| tree | 32c80d0b4a68f2c6c26380bbc3e23727d28f48a9 /arch/x86/kvm/vmx | |
| parent | 699a1ac214328569d203b9c6bfc22903d5642dee (diff) | |
| download | blackbird-op-linux-c27e5b0d139b8728abd6b087cb0d3b2eae6ab079.tar.gz blackbird-op-linux-c27e5b0d139b8728abd6b087cb0d3b2eae6ab079.zip | |
KVM: nVMX: Don't update GUEST_BNDCFGS if it's clean in HV eVMCS
L1 is responsible for dirtying GUEST_GRP1 if it writes GUEST_BNDCFGS.
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
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')
| -rw-r--r-- | arch/x86/kvm/vmx/nested.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index ba7f16b37719..3363fe1e743b 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -2197,6 +2197,10 @@ static void prepare_vmcs02_rare(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12) vmcs_write64(GUEST_PDPTR2, vmcs12->guest_pdptr2); vmcs_write64(GUEST_PDPTR3, vmcs12->guest_pdptr3); } + + if (kvm_mpx_supported() && vmx->nested.nested_run_pending && + (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS)) + vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs); } if (nested_cpu_has_xsaves(vmcs12)) @@ -2232,10 +2236,6 @@ static void prepare_vmcs02_rare(struct vcpu_vmx *vmx, struct vmcs12 *vmcs12) vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, vmx->msr_autoload.guest.nr); set_cr4_guest_host_mask(vmx); - - if (kvm_mpx_supported() && vmx->nested.nested_run_pending && - (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS)) - vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs); } /* |
