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| author | Jing Liu <jing2.liu@intel.com> | 2022-01-05 13:35:25 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-14 19:44:33 +0100 |
| commit | 61f208134a871047f1d642ed3b813f4f71e30b0e (patch) | |
| tree | abc436e9f9c01f21526833cf2b6c4948ab0d5b7b /arch/x86/kvm/vmx/vmx.h | |
| parent | kvm: x86: Emulate IA32_XFD_ERR for guest (diff) | |
| download | linux-61f208134a871047f1d642ed3b813f4f71e30b0e.tar.xz linux-61f208134a871047f1d642ed3b813f4f71e30b0e.zip | |
kvm: x86: Disable RDMSR interception of IA32_XFD_ERR
This saves one unnecessary VM-exit in guest #NM handler, given that the
MSR is already restored with the guest value before the guest is resumed.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jing Liu <jing2.liu@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <20220105123532.12586-15-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.h')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index 18111368cf85..69dd2f85abdc 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -349,7 +349,7 @@ struct vcpu_vmx { struct lbr_desc lbr_desc; /* Save desired MSR intercept (read: pass-through) state */ -#define MAX_POSSIBLE_PASSTHROUGH_MSRS 13 +#define MAX_POSSIBLE_PASSTHROUGH_MSRS 14 struct { DECLARE_BITMAP(read, MAX_POSSIBLE_PASSTHROUGH_MSRS); DECLARE_BITMAP(write, MAX_POSSIBLE_PASSTHROUGH_MSRS); |