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| author | Yeoreum Yun <yeoreum.yun@arm.com> | 2026-03-14 17:51:31 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2026-03-27 17:29:10 +0000 |
| commit | e223258ed8a683d9debbb03ca1be0736f2c12e5b (patch) | |
| tree | 9b1cc036711ba9e9ba55709323818782c935a86b /rust/kernel | |
| parent | 377609ae8b6ac2ef522c9dcecfa20a7123116dbf (diff) | |
arm64: armv8_deprecated: Disable swp emulation when FEAT_LSUI present
The purpose of supporting LSUI is to eliminate PAN toggling. CPUs that
support LSUI are unlikely to support a 32-bit runtime. Rather than
emulating the SWP instruction using LSUI instructions in order to remove
PAN toggling, simply disable SWP emulation.
Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com>
[catalin.marinas@arm.com: some tweaks to the in-code comment]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'rust/kernel')
0 files changed, 0 insertions, 0 deletions