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author | Oliver Upton <oliver.upton@linux.dev> | 2023-06-16 03:49:36 +0300 |
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committer | Oliver Upton <oliver.upton@linux.dev> | 2023-06-16 03:49:36 +0300 |
commit | 92d05e2492f1400029e84b5a72e15811ef787ee9 (patch) | |
tree | 61fa35f4027af086ddcb80ce003b06a74b6a3e0c /Documentation | |
parent | e1e315c4d5282c1713ab08acec2ac17b8dbd6591 (diff) | |
parent | 082fdfd13841fa4e38a8b073561d182e195d528c (diff) | |
download | linux-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.rst | 3 |
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 | |