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KVM: x86: avoid unnecessary XSETBV on guest entry
authorPaolo Bonzini <pbonzini@redhat.com>
Wed, 13 Dec 2017 12:51:32 +0000 (13:51 +0100)
committerRadim Krčmář <rkrcmar@redhat.com>
Tue, 16 Jan 2018 15:34:13 +0000 (16:34 +0100)
commit476b7adaa3272557168b287175b1e9e943913404
tree94fc0056f603db46d4026b5a179167783f728452tree
parentefdab992813fb2ed825745625b83c05032e9cda2commit | diff
KVM: x86: avoid unnecessary XSETBV on guest entry

xsetbv can be expensive when running on nested virtualization, try to
avoid it.

Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Wanpeng Li <wanpeng.li@hotmail.com>
Reviewed-by: Quan Xu <quan.xu0@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
arch/x86/kvm/x86.c diff | blob | history
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