diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-11 19:15:52 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2014-01-11 19:15:52 -0800 |
| commit | 26bef1318adc1b3a530ecc807ef99346db2aa8b0 (patch) | |
| tree | d7fe46fa037ee060ce9fced2ccc5014d5552f6ea /kernel/time.c | |
| parent | 1739f09e33d8f66bf48ddbc3eca615574da6c4f6 (diff) | |
| download | op-kernel-dev-26bef1318adc1b3a530ecc807ef99346db2aa8b0.zip op-kernel-dev-26bef1318adc1b3a530ecc807ef99346db2aa8b0.tar.gz | |
x86, fpu, amd: Clear exceptions in AMD FXSAVE workaround
Before we do an EMMS in the AMD FXSAVE information leak workaround we
need to clear any pending exceptions, otherwise we trap with a
floating-point exception inside this code.
Reported-by: halfdog <me@halfdog.net>
Tested-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/CA%2B55aFxQnY_PCG_n4=0w-VG=YLXL-yr7oMxyy0WU2gCBAf3ydg@mail.gmail.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'kernel/time.c')
0 files changed, 0 insertions, 0 deletions
