diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2016-08-16 16:03:01 +0200 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-08-17 12:23:47 +0200 |
| commit | 674e70127069f3fd3c58fb0f94c60eb0f6567d78 (patch) | |
| tree | d36024aef039b0e277279f22747be0ae1283315c | |
| parent | KVM: arm/arm64: Change misleading use of is_error_pfn (diff) | |
| download | linux-674e70127069f3fd3c58fb0f94c60eb0f6567d78.tar.xz linux-674e70127069f3fd3c58fb0f94c60eb0f6567d78.zip | |
arm64: Document workaround for Cortex-A72 erratum #853709
We already have a workaround for Cortex-A57 erratum #852523,
but Cortex-A72 r0p0 to r0p2 do suffer from the same issue
(known as erratum #853709).
Let's document the fact that we already handle this.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
| -rw-r--r-- | Documentation/arm64/silicon-errata.txt | 1 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/switch.c | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt index 4da60b463995..ccc60324e738 100644 --- a/Documentation/arm64/silicon-errata.txt +++ b/Documentation/arm64/silicon-errata.txt @@ -53,6 +53,7 @@ stable kernels. | ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 | | ARM | Cortex-A57 | #852523 | N/A | | ARM | Cortex-A57 | #834220 | ARM64_ERRATUM_834220 | +| ARM | Cortex-A72 | #853709 | N/A | | ARM | MMU-500 | #841119,#826419 | N/A | | | | | | | Cavium | ThunderX ITS | #22375, #24313 | CAVIUM_ERRATUM_22375 | diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c index ae7855f16ec2..5a84b4562603 100644 --- a/arch/arm64/kvm/hyp/switch.c +++ b/arch/arm64/kvm/hyp/switch.c @@ -256,7 +256,7 @@ static int __hyp_text __guest_run(struct kvm_vcpu *vcpu) /* * We must restore the 32-bit state before the sysregs, thanks - * to Cortex-A57 erratum #852523. + * to erratum #852523 (Cortex-A57) or #853709 (Cortex-A72). */ __sysreg32_restore_state(vcpu); __sysreg_restore_guest_state(guest_ctxt); |