]> git.baikalelectronics.ru Git - kernel.git/commit
arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry
authorWill Deacon <will.deacon@arm.com>
Tue, 14 Nov 2017 16:19:39 +0000 (16:19 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Mon, 8 Jan 2018 18:43:33 +0000 (18:43 +0000)
commit5614e4c70702f11996a98b1df37c3caf6e62bd0b
tree4797bee1203ae87241f138a43396a90a73a27102
parentf59c540ae2b4d522462d1b45685b43f277189e0c
arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry

Although CONFIG_UNMAP_KERNEL_AT_EL0 does make KASLR more robust, it's
actually more useful as a mitigation against speculation attacks that
can leak arbitrary kernel data to userspace through speculation.

Reword the Kconfig help message to reflect this, and make the option
depend on EXPERT so that it is on by default for the majority of users.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/Kconfig