diff options
| author | Suresh Siddha <suresh.b.siddha@intel.com> | 2008-07-29 10:29:24 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-30 19:49:27 +0200 |
| commit | bdd8caba5ed5bb7ee21c9f061597284ffeb280bf (patch) | |
| tree | 036491dc4b283979f462008bc961800847187937 /arch/x86/kernel/early-quirks.c | |
| parent | 9dc89c0f96a6ce6a1b7f9a47dd8bf6f17e2002c9 (diff) | |
x86, xsave: struct _fpstate extensions to include extended state information
Bytes 464..511 in the current 512byte layout of fxsave/fxrstor
frame, are reserved for SW usage. On cpu's supporting xsave/xrstor, these bytes
are used to extended the fpstate pointer in the sigcontext, which now includes
the extended state information along with fpstate information.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/early-quirks.c')
0 files changed, 0 insertions, 0 deletions