diff options
| author | Shan Haitao <[email protected]> | 2010-11-09 11:43:36 -0800 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <[email protected]> | 2011-04-06 08:31:13 -0400 |
| commit | 947ccf9c3c30307b774af3666ee74fcd9f47f646 (patch) | |
| tree | ade0284004bf6cb7a16a6afd85c3e79b2538fc4d /tools/perf/scripts/python/net_dropmonitor.py | |
| parent | 61f4237d5b005767a76f4f3694e68e6f78f392d9 (diff) | |
xen: Allow PV-OPS kernel to detect whether XSAVE is supported
Xen fails to mask XSAVE from the cpuid feature, despite not historically
supporting guest use of XSAVE. However, now that XSAVE support has been
added to Xen, we need to reliably detect its presence.
The most reliable way to do this is to look at the OSXSAVE feature in
cpuid which is set iff the OS (Xen, in this case), has set
CR4.OSXSAVE.
[ Cleaned up conditional a bit. - Jeremy ]
Signed-off-by: Shan Haitao <[email protected]>
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/net_dropmonitor.py')
0 files changed, 0 insertions, 0 deletions