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| author |   Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2019-09-25 23:37:21 +0200 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2019-09-26 13:20:55 +0200 |
| commit | 504ce1954fba888936c9d13ccc1e3db9b8f613d5 (patch) | |
| tree | db518fe49d637b5730ba70f41bb1e28af3e415bc /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | kvm: x86: Enumerate support for CLZERO instruction (diff) | |
| download | wireguard-linux-504ce1954fba888936c9d13ccc1e3db9b8f613d5.tar.xz wireguard-linux-504ce1954fba888936c9d13ccc1e3db9b8f613d5.zip | |
KVM: x86: Expose XSAVEERPTR to the guest
I was surprised to see that the guest reported `fxsave_leak' while the
host did not. After digging deeper I noticed that the bits are simply
masked out during enumeration.
The XSAVEERPTR feature is actually a bug fix on AMD which means the
kernel can disable a workaround.
Pass XSAVEERPTR to the guest if available on the host.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions