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(parent: 1f318b9) | patch
arm64: cpufeature: Add FEAT_LSUI
authorYeoreum Yun <yeoreum.yun@arm.com>
Sat, 14 Mar 2026 17:51:26 +0000 (17:51 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Thu, 26 Mar 2026 18:19:07 +0000 (18:19 +0000)
commit7181f718cb0fd47b37d13aad8744cbd6da9f1cbe
tree399ef77aced5594157f93fd02bceb1fb363e1f5atree | snapshot
parent1f318b96cc84d7c2ab792fcc0bfd42a7ca890681commit | diff
arm64: cpufeature: Add FEAT_LSUI

Since Armv9.6, FEAT_LSUI introduces atomic instructions that allow
privileged code to access user memory without clearing the PSTATE.PAN
bit. Add CPU feature detection for FEAT_LSUI.

Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com>
[catalin.marinas@arm.com: Remove commit log references to SW_PAN]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/include/asm/cpucaps.h diff | blob | blame | history
arch/arm64/kernel/cpufeature.c diff | blob | blame | history
arch/arm64/tools/cpucaps diff | blob | blame | history
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