From: Suresh Siddha <suresh.b.siddha@intel.com>
Date: Tue, 29 Jul 2008 17:29:24 +0000 (-0700)
Subject: x86, xsave: struct _fpstate extensions to include extended state information
X-Git-Tag: v2.6.28-rc1~699^2^8~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdd8caba5ed5bb7ee21c9f061597284ffeb280bf;p=pandora-kernel.git

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>
---

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