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| author | Andy Lutomirski <luto@kernel.org> | 2016-09-12 15:05:51 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-09-13 20:34:16 +0200 |
| commit | 85063fac1f72419eec4349621fe829b07f9acb1e (patch) | |
| tree | a8cfff2b57faf887bb18c7c54c3814234688e1e4 /arch/x86/entry/common.c | |
| parent | 1ef0199a1a698d82ecd39d11d1daa3f4ab006c75 (diff) | |
x86/entry/64: Clean up and document espfix64 stack setup
The espfix64 setup code was a bit inscrutible and contained an
unnecessary push of RAX. Remove that push, update all the stack
offsets to match, and document the whole mess.
Reported-By: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/e5459eb10cf1175c8b36b840bc425f210d045f35.1473717910.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/entry/common.c')
0 files changed, 0 insertions, 0 deletions