| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 091/114] arm64: docs: Document SSBS HWCAP | Date | Thu, 10 Oct 2019 10:36:38 +0200 |
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From: Will Deacon <will.deacon@arm.com>
[ Upstream commit ee91176120bd584aa10c564e7e9fdcaf397190a1 ]
We advertise the MRS/MSR instructions for toggling SSBS at EL0 using an HWCAP, so document it along with the others.
Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- Documentation/arm64/elf_hwcaps.txt | 4 ++++ 1 file changed, 4 insertions(+)
--- a/Documentation/arm64/elf_hwcaps.txt +++ b/Documentation/arm64/elf_hwcaps.txt @@ -178,3 +178,7 @@ HWCAP_ILRCPC HWCAP_FLAGM Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0001. + +HWCAP_SSBS + + Functionality implied by ID_AA64PFR1_EL1.SSBS == 0b0010.
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