diff options
| author | Will Deacon <will.deacon@arm.com> | 2019-10-08 17:39:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-11 18:21:31 +0200 |
| commit | 09c22781dd2c641c1ed58fc95605fc36ca4fe50f (patch) | |
| tree | fd567c830320e78ee25f9dc06a7e1f908aa458cc | |
| parent | a59d42ac50a1e74a12c8b4b448318834a10cb887 (diff) | |
arm64: docs: Document SSBS HWCAP
[ 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>
| -rw-r--r-- | Documentation/arm64/elf_hwcaps.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.txt b/Documentation/arm64/elf_hwcaps.txt index d6aff2c5e9e2..6feaffe90e22 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. |