From: Will Deacon <will.deacon@arm.com>
Date: Mon, 1 Oct 2018 14:24:48 +0000 (+0100)
Subject: arm64: docs: Document SSBS HWCAP
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ee91176120bd584aa10c564e7e9fdcaf397190a1;p=linux.git

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>
---

diff --git a/Documentation/arm64/elf_hwcaps.txt b/Documentation/arm64/elf_hwcaps.txt
index 51ccfab408cc6..ea819ae024dd5 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.