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| author | Nadav Amit <namit@cs.technion.ac.il> | 2014-10-13 13:04:13 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-10-24 13:30:36 +0200 |
| commit | 13e457e0eebf0a0c82c38ceb890d93eb826d62a6 (patch) | |
| tree | f0ab042f6b4b419ec6cda09f0f199764636fda25 /kernel | |
| parent | a430c9166312e1aa3d80bce32374233bdbfeba32 (diff) | |
KVM: x86: Emulator does not decode clflush well
Currently, all group15 instructions are decoded as clflush (e.g., mfence,
xsave). In addition, the clflush instruction requires no prefix (66/f2/f3)
would exist. If prefix exists it may encode a different instruction (e.g.,
clflushopt).
Creating a group for clflush, and different group for each prefix.
This has been the case forever, but the next patch needs the cflush group
in order to fix a bug introduced in 3.17.
Fixes: 41061cdb98a0bec464278b4db8e894a3121671f5
Cc: stable@vger.kernel.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions