diff options
| author | Andy Lutomirski <luto@amacapital.net> | 2014-11-22 18:00:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-11-23 13:56:18 -0800 |
| commit | af726f21ed8af2cdaa4e93098dc211521218ae65 (patch) | |
| tree | d3546c0fe44e49d283ed3d0ced3b92873f28df34 /arch/x86/include/asm/page_64_types.h | |
| parent | fc14f9c1272f62c3e8d01300f52467c0d9af50f9 (diff) | |
x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
There's nothing special enough about the espfix64 double fault fixup to
justify writing it in assembly. Move it to C.
This also fixes a bug: if the double fault came from an IST stack, the
old asm code would return to a partially uninitialized stack frame.
Fixes: 3891a04aafd668686239349ea58f3314ea2af86b
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/include/asm/page_64_types.h')
0 files changed, 0 insertions, 0 deletions