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KVM: nVMX: Update vmcs12 on BNDCFGS write, not at vmcs02=>vmcs12 sync
authorSean Christopherson <seanjc@google.com>
Tue, 14 Jun 2022 21:58:31 +0000 (21:58 +0000)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 20 Jun 2022 10:21:21 +0000 (06:21 -0400)
commit913d6c9b8fe48f0836c00e359fb1ea39089d25e9
tree974f8391a3884323cd70f0e7a1517d8c3adcbe7ftree | snapshot
parent308a4fffeb361af90f17837c1bcace3139d1f677commit | diff
KVM: nVMX: Update vmcs12 on BNDCFGS write, not at vmcs02=>vmcs12 sync

Update vmcs12->guest_bndcfgs on intercepted writes to BNDCFGS from L2
instead of waiting until vmcs02 is synchronized to vmcs12.  KVM always
intercepts BNDCFGS accesses, so the only way the value in vmcs02 can
change is via KVM's explicit VMWRITE during emulation.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220614215831.3762138-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/vmx/nested.c diff | blob | history
arch/x86/kvm/vmx/vmx.c diff | blob | history
Domain: System / Kernel;