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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2022-02-02 12:50:57 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-02-10 21:50:44 +0300 |
| commit | 73c25546d47f65165ae50f225272e05629fab164 (patch) | |
| tree | 74178afcc376c08afb42b90c790685c64d0f7c9f /arch/x86/kvm/svm/svm.h | |
| parent | 951cb0a3b5f2acc61ed84c752fb0bcef6806496f (diff) | |
| download | linux-73c25546d47f65165ae50f225272e05629fab164.tar.xz | |
KVM: nSVM: Track whether changes in L0 require MSR bitmap for L2 to be rebuilt
Similar to nVMX commit ed2a4800ae9d ("KVM: nVMX: Track whether changes in
L0 require MSR bitmap for L2 to be rebuilt"), introduce a flag to keep
track of whether MSR bitmap for L2 needs to be rebuilt due to changes in
MSR bitmap for L1 or switching to a different L2.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220202095100.129834-2-vkuznets@redhat.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 ffc24305e600..365c17b9fe55 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -163,6 +163,15 @@ struct svm_nested_state { struct vmcb_save_area_cached save; bool initialized; + + /* + * Indicates whether MSR bitmap for L2 needs to be rebuilt due to + * changes in MSR bitmap for L1 or switching to a different L2. Note, + * this flag can only be used reliably in conjunction with a paravirt L1 + * which informs L0 whether any changes to MSR bitmap for L2 were done + * on its side. + */ + bool force_msr_bitmap_recalc; }; struct vcpu_sev_es_state { |