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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2022-05-19 12:27:02 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-06-24 18:50:26 +0200 |
| commit | 7a8f7c1f3434afc94b6895eff713e0fcea01e3b4 (patch) | |
| tree | 0d3d9a9a08974afb663e63d5cc1d085552b2895e /arch/x86/kvm/svm/svm.h | |
| parent | KVM: SVM: Refresh AVIC configuration when changing APIC mode (diff) | |
| download | linux-7a8f7c1f3434afc94b6895eff713e0fcea01e3b4.tar.xz linux-7a8f7c1f3434afc94b6895eff713e0fcea01e3b4.zip | |
KVM: x86: nSVM: always intercept x2apic msrs
As a preparation for x2avic, this patch ensures that x2apic msrs
are always intercepted for the nested guest.
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Tested-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220519102709.24125-11-suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm/svm.h')
| -rw-r--r-- | arch/x86/kvm/svm/svm.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 6d89842853cf..288a1384aa0f 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -521,6 +521,15 @@ static inline bool nested_npt_enabled(struct vcpu_svm *svm) return svm->nested.ctl.nested_ctl & SVM_NESTED_CTL_NP_ENABLE; } +static inline bool is_x2apic_msrpm_offset(u32 offset) +{ + /* 4 msrs per u8, and 4 u8 in u32 */ + u32 msr = offset * 16; + + return (msr >= APIC_BASE_MSR) && + (msr < (APIC_BASE_MSR + 0x100)); +} + /* svm.c */ #define MSR_INVALID 0xffffffffU |