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authorSean Christopherson <sean.j.christopherson@intel.com>2021-03-05 10:31:22 -0800
committerPaolo Bonzini <pbonzini@redhat.com>2021-03-15 04:44:05 -0400
commit14072e56958cc167a049d2be0aca78c733777d25 (patch)
tree73c9e055d03dd4bf0c8eaa1feb69422a40972144 /arch/x86/kvm/svm/nested.c
parentKVM: VMX: Define Hyper-V paravirt TLB flush fields iff Hyper-V is enabled (diff)
downloadlinux-dev-14072e56958cc167a049d2be0aca78c733777d25.tar.xz
linux-dev-14072e56958cc167a049d2be0aca78c733777d25.zip
KVM: VMX: Skip additional Hyper-V TLB EPTP flushes if one fails
Skip additional EPTP flushes if one fails when processing EPTPs for Hyper-V's paravirt TLB flushing. If _any_ flush fails, KVM falls back to a full global flush, i.e. additional flushes are unnecessary (and will likely fail anyways). Continue processing the loop unless a mismatch was already detected, e.g. to handle the case where the first flush fails and there is a yet-to-be-detected mismatch. Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210305183123.3978098-11-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm/nested.c')
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