linux

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-02-24 00:43:23 -05:00

Files

Josh Poimboeuf fc9fd3f984 x86/bugs: Use SBPB in write_ibpb() if applicable

write_ibpb() does IBPB, which (among other things) flushes branch type
predictions on AMD.  If the CPU has SRSO_NO, or if the SRSO mitigation
has been disabled, branch type flushing isn't needed, in which case the
lighter-weight SBPB can be used.

The 'x86_pred_cmd' variable already keeps track of whether IBPB or SBPB
should be used.  Use that instead of hardcoding IBPB.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/17c5dcd14b29199b75199d67ff7758de9d9a4928.1744148254.git.jpoimboe@kernel.org

2025-04-09 12:41:30 +02:00

syscalls

Merge tag 'x86-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-03-24 22:06:11 -07:00

vdso

mseal sysmap: enable x86-64

2025-04-01 15:17:15 -07:00

vsyscall

x86/mm: Remove broken vsyscall emulation code from the page fault code

2024-05-01 09:41:43 +02:00

calling.h

x86/entry: Fix ORC unwinder for PUSH_REGS with save_ret=1