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| author | David Woodhouse <dwmw@amazon.co.uk> | 2025-01-09 14:04:14 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-01-14 12:52:47 +0100 |
| commit | 4d5f1da98f5e94ecc39d6e7a990db2efe0ae3810 (patch) | |
| tree | b3921df5393f13d355699d6cdba3a08cd1faa33d /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | d144d8a65286fb4a9f06ca80dea6e02e7d846558 (diff) | |
x86/kexec: Ensure preserve_context flag is set on return to kernel
The swap_pages() function will only actually *swap*, as its name implies, if
the preserve_context flag in the %r11 register is non-zero. On the way back
from a ::preserve_context kexec, ensure that the %r11 register is non-zero so
that the pages get swapped back.
Fixes: 9e5683e2d0b5 ("x86/kexec: Only swap pages for ::preserve_context mode")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20250109140757.2841269-3-dwmw2@infradead.org
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions