diff options
| author | Andy Lutomirski <luto@amacapital.net> | 2014-11-22 18:00:31 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-12-06 15:05:46 -0800 |
| commit | ea21cb1f6b15abb6f6c039654412ff460175cb0f (patch) | |
| tree | 6cf5b15be799b1dae791d30f31b0c6f118e3e0fe /include/linux | |
| parent | f5e905d72508585bbb75622f0f75564d120084cb (diff) | |
x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
commit af726f21ed8af2cdaa4e93098dc211521218ae65 upstream.
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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions