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KVM: x86: hyper-v: Check access to hypercall before reading XMM registers
authorVitaly Kuznetsov <vkuznets@redhat.com>
Fri, 30 Jul 2021 12:26:22 +0000 (14:26 +0200)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 3 Aug 2021 10:16:40 +0000 (06:16 -0400)
commit2e2f1e8d0450c561c0c936b4b67e8b5a95975fb7
tree73dc45ea0c70fae07154f91c909ccc1598e75d0atree | snapshot
parentfa7a549d321a4189677b0cea86e58d9db7977f7bcommit | diff
KVM: x86: hyper-v: Check access to hypercall before reading XMM registers

In case guest doesn't have access to the particular hypercall we can avoid
reading XMM registers.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Siddharth Chandrasekaran <sidcha@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210730122625.112848-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/hyperv.c diff | blob | history
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