diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2022-06-14 23:15:45 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-06-27 10:33:58 +0200 |
| commit | aa3d480315ba6c3025a60958e1981072ea37c3df (patch) | |
| tree | 8b8c57aa9dd990a7935a210603570617180171e3 /tools/lib/api/debug-internal.h | |
| parent | 0ee9073000e8791f8b134a8ded31bcc767f7f232 (diff) | |
x86: Use return-thunk in asm code
Use the return thunk in asm code. If the thunk isn't needed, it will
get patched into a RET instruction during boot by apply_returns().
Since alternatives can't handle relocations outside of the first
instruction, putting a 'jmp __x86_return_thunk' in one is not valid,
therefore carve out the memmove ERMS path into a separate label and jump
to it.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'tools/lib/api/debug-internal.h')
0 files changed, 0 insertions, 0 deletions