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| author |   Peter Zijlstra <peterz@infradead.org> | 2025-04-18 11:50:34 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2025-04-18 14:36:18 +0200 |
| commit | aef1d0209ddf127a8069aca5fa3a062be4136b76 (patch) | |
| tree | 7ba7624416fe05ec288301ba4dfadf6b88c00831 /scripts/gdb/linux/utils.py | |
| parent | x86/mm: Remove the mm_cpumask(prev) warning from switch_mm_irqs_off() (diff) | |
| download | linux-rng-aef1d0209ddf127a8069aca5fa3a062be4136b76.tar.xz linux-rng-aef1d0209ddf127a8069aca5fa3a062be4136b76.zip | |
x86/mm: Fix {,un}use_temporary_mm() IRQ state
As the function switch_mm_irqs_off() implies, it ought to be called with
IRQs *off*. Commit 58f8ffa91766 ("x86/mm: Allow temporary MMs when IRQs
are on") caused this to not be the case for EFI.
Ensure IRQs are off where it matters.
Fixes: 58f8ffa91766 ("x86/mm: Allow temporary MMs when IRQs are on")
Reported-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rik van Riel <riel@surriel.com>
Link: https://lore.kernel.org/r/20250418095034.GR38216@noisy.programming.kicks-ass.net
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions