x86, xsave: Disable xsave in i387 emulation mode

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xsave is broken for (!HAVE_HWFP). This is the case if config
MATH_EMULATION is enabled, 'no387' kernel parameter is set and xsave
exists. xsave will not work because x86/math-emu and xsave share the
same memory. As this case can be treated as corner case we simply
disable xsave then.

Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <1279731838-1522-7-git-send-email-robert.richter@amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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Robert Richter 2010-07-21 19:03:57 +02:00 • committed by H. Peter Anvin

parent ad41a1e0ca

commit 1f999ab5a1

1 changed files with 6 additions and 0 deletions

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arch/x86/kernel/i387.c

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