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authorWill Deacon <will.deacon@arm.com>2018-10-01 17:24:48 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2018-10-01 18:28:17 +0300
commitee91176120bd584aa10c564e7e9fdcaf397190a1 (patch)
tree714d25f3342062700bf4eb991436d338011fe709 /Documentation/arm64
parent4bfbe5eee309e8c86e1b1155e82136c8fbffd155 (diff)
downloadlinux-ee91176120bd584aa10c564e7e9fdcaf397190a1.tar.xz
arm64: docs: Document SSBS HWCAP
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>
Diffstat (limited to 'Documentation/arm64')
-rw-r--r--Documentation/arm64/elf_hwcaps.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.txt b/Documentation/arm64/elf_hwcaps.txt
index 51ccfab408cc..ea819ae024dd 100644
--- 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.