KVM: VMX: fix nested vpid for old KVM guests

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commit ef697a712a 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: 99b83ac893
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Paolo Bonzini 2016-03-18 16:58:38 +01:00 • committed by Greg Kroah-Hartman

parent f9153f95f2

commit 6a84dfcbf5

1 changed files with 13 additions and 1 deletions

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arch/x86/kvm/vmx.c

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