diff options
| author | Suresh Siddha <suresh.b.siddha@intel.com> | 2012-09-06 18:05:18 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-09-18 18:52:23 -0400 |
| commit | 212b02125f3725127148475059a70031bd031bdb (patch) | |
| tree | 9505ae1f2d35ee9c803c0d3e64451b41db9ccb8b /Documentation/kernel-parameters.txt | |
| parent | 5d2bd7009f306c82afddd1ca4d9763ad8473c216 (diff) | |
x86, fpu: enable eagerfpu by default for xsaveopt
xsaveopt/xrstor support optimized state save/restore by tracking the
INIT state and MODIFIED state during context-switch.
Enable eagerfpu by default for processors supporting xsaveopt.
Can be disabled by passing "eagerfpu=off" boot parameter.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1347300665-6209-3-git-send-email-suresh.b.siddha@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 741d064fdc6a..e8f7faaa4571 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt | |||
| @@ -1834,7 +1834,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
| 1834 | enabling legacy floating-point and sse state. | 1834 | enabling legacy floating-point and sse state. |
| 1835 | 1835 | ||
| 1836 | eagerfpu= [X86] | 1836 | eagerfpu= [X86] |
| 1837 | on enable eager fpu restore | 1837 | on enable eager fpu restore (default for xsaveopt) |
| 1838 | off disable eager fpu restore | 1838 | off disable eager fpu restore |
| 1839 | 1839 | ||
| 1840 | nohlt [BUGS=ARM,SH] Tells the kernel that the sleep(SH) or | 1840 | nohlt [BUGS=ARM,SH] Tells the kernel that the sleep(SH) or |