From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org
Cc: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
kernel-team@android.com,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Stephen Boyd <swboyd@chromium.org>,
dianders@google.com, Will Deacon <will@kernel.org>
Subject: [PATCH v3 2/2] arm64: Allow booting of late CPUs affected by erratum 1418040
Date: Fri, 31 Jul 2020 18:38:24 +0100 [thread overview]
Message-ID: <20200731173824.107480-3-maz@kernel.org> (raw)
In-Reply-To: <20200731173824.107480-1-maz@kernel.org>
As we can now switch from a system that isn't affected by 1418040
to a system that globally is affected, let's allow affected CPUs
to come in at a later time.
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/kernel/cpu_errata.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 79728bfb5351..2c0b82db825b 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -910,6 +910,8 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
.desc = "ARM erratum 1418040",
.capability = ARM64_WORKAROUND_1418040,
ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
+ .type = (ARM64_CPUCAP_SCOPE_LOCAL_CPU |
+ ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU),
},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
--
2.27.0
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next prev parent reply other threads:[~2020-07-31 17:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-31 17:38 [PATCH v3 0/2] arm64: Allow erratum 1418040 for late CPUs Marc Zyngier
2020-07-31 17:38 ` [PATCH v3 1/2] arm64: Move handling of erratum 1418040 into C code Marc Zyngier
2020-07-31 18:00 ` Stephen Boyd
2020-07-31 17:38 ` Marc Zyngier [this message]
[not found] ` <159803353178.13439.17036526669146072985.b4-ty@arm.com>
2020-09-09 14:53 ` [PATCH v3 0/2] arm64: Allow erratum 1418040 for late CPUs Doug Anderson
2020-09-10 13:43 ` Sai Prakash Ranjan
[not found] ` <3d5f6d5289304c558830d5fb8820e6cb@codeaurora.org>
2020-09-11 13:30 ` Marc Zyngier
2020-09-11 16:34 ` Sai Prakash Ranjan
[not found] ` <51c30228d9fe3dd6e2a55991831e95b0@codeaurora.org>
2020-09-11 16:42 ` Will Deacon
2020-09-11 17:47 ` Marc Zyngier
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