diff options
| author | Bandan Das <bsd@redhat.com> | 2015-06-11 02:05:33 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-06-19 17:16:26 +0200 |
| commit | f104765b4f81fd74d69e0eb161e89096deade2db (patch) | |
| tree | 25e36bd9849498c5a939277cd6d31176bf525203 /arch/x86/kvm/x86.c | |
| parent | 0b8ba4a2b65860ac1fcd5be6cfca5d3b27a5b170 (diff) | |
| download | linux-f104765b4f81fd74d69e0eb161e89096deade2db.tar.bz2 | |
KVM: nSVM: Check for NRIPS support before updating control field
If hardware doesn't support DecodeAssist - a feature that provides
more information about the intercept in the VMCB, KVM decodes the
instruction and then updates the next_rip vmcb control field.
However, NRIP support itself depends on cpuid Fn8000_000A_EDX[NRIPS].
Since skip_emulated_instruction() doesn't verify nrip support
before accepting control.next_rip as valid, avoid writing this
field if support isn't present.
Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
0 files changed, 0 insertions, 0 deletions