Paolo Bonzini 6a84dfcbf5 KVM: VMX: fix nested vpid for old KVM guests
commit ef697a712a6165aea7779c295604b099e8bfae2e upstream.

Old KVM guests invoke single-context invvpid without actually checking
whether it is supported.  This was fixed by commit 518c8ae ("KVM: VMX:
Make sure single type invvpid is supported before issuing invvpid
instruction", 2010-08-01) and the patch after, but pre-2.6.36
kernels lack it including RHEL 6.

Reported-by: jmontleo@redhat.com
Tested-by: jmontleo@redhat.com
Fixes: 99b83ac893b84ed1a62ad6d1f2b6cc32026b9e85
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:34 -07:00
..
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