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authorOliver Upton <oliver.upton@linux.dev>2023-06-16 03:49:36 +0300
committerOliver Upton <oliver.upton@linux.dev>2023-06-16 03:49:36 +0300
commit92d05e2492f1400029e84b5a72e15811ef787ee9 (patch)
tree61fa35f4027af086ddcb80ce003b06a74b6a3e0c /Documentation
parente1e315c4d5282c1713ab08acec2ac17b8dbd6591 (diff)
parent082fdfd13841fa4e38a8b073561d182e195d528c (diff)
downloadlinux-92d05e2492f1400029e84b5a72e15811ef787ee9.tar.xz
Merge branch kvm-arm64/ampere1-hafdbs-mitigation into kvmarm/next
* kvm-arm64/ampere1-hafdbs-mitigation: : AmpereOne erratum AC03_CPU_38 mitigation : : AmpereOne does not advertise support for FEAT_HAFDBS due to an : underlying erratum in the feature. The associated control bits do not : have RES0 behavior as required by the architecture. : : Introduce mitigations to prevent KVM from enabling the feature at : stage-2 as well as preventing KVM guests from enabling HAFDBS at : stage-1. KVM: arm64: Prevent guests from enabling HA/HD on Ampere1 KVM: arm64: Refactor HFGxTR configuration into separate helpers arm64: errata: Mitigate Ampere1 erratum AC03_CPU_38 at stage-2 Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/arm64/silicon-errata.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
index 9e311bc43e05..cd46e2b20a81 100644
--- a/Documentation/arm64/silicon-errata.rst
+++ b/Documentation/arm64/silicon-errata.rst
@@ -52,6 +52,9 @@ stable kernels.
| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
+| Ampere | AmpereOne | AC03_CPU_38 | AMPERE_ERRATUM_AC03_CPU_38 |
++----------------+-----------------+-----------------+-----------------------------+
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2457168 | ARM64_ERRATUM_2457168 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2064142 | ARM64_ERRATUM_2064142 |