tree 65188c4b33d2170a4bcd46120be745ceb9238ccf
parent c65273a83da79d474affb7f6d431ac53beac0761
author Will Deacon <will.deacon@arm.com> 1510676379 +0000
committer Greg Kroah-Hartman <gregkh@google.com> 1515238956 +0100

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: Greg Kroah-Hartman <gregkh@google.com>