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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.7 45/53] arm64: kpti: Add KRYO{3, 4}XX silver CPU cores to kpti safelist
Date: Wed,  1 Jul 2020 21:21:54 -0400	[thread overview]
Message-ID: <20200702012202.2700645-45-sashal@kernel.org> (raw)
In-Reply-To: <20200702012202.2700645-1-sashal@kernel.org>

From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>

[ Upstream commit f4617be35b4b547e82d30993f56d631dfc2d5f88 ]

QCOM KRYO{3,4}XX silver/LITTLE CPU cores are based on Cortex-A55
and are meltdown safe, hence add them to kpti_safe_list[].

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/20200624123406.3472-1-saiprakash.ranjan@codeaurora.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kernel/cpufeature.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 9fac745aa7bb2..b0fb1d5bf2235 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1059,6 +1059,8 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
 		MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
 		MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
 		MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
+		MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER),
+		MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
 		{ /* sentinel */ }
 	};
 	char const *str = "kpti command line option";
-- 
2.25.1


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  parent reply	other threads:[~2020-07-02  1:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-02  1:21 [PATCH AUTOSEL 5.7 01/53] soc: ti: omap-prm: use atomic iopoll instead of sleeping one Sasha Levin
2020-07-02  1:21 ` [PATCH AUTOSEL 5.7 38/53] drm/sun4i: mixer: Call of_dma_configure if there's an IOMMU Sasha Levin
2020-07-02  1:21 ` [PATCH AUTOSEL 5.7 41/53] ARM: imx6: add missing put_device() call in imx6q_suspend_init() Sasha Levin
2020-07-02  1:21 ` Sasha Levin [this message]
2020-07-02  1:21 ` [PATCH AUTOSEL 5.7 50/53] arm64: Add KRYO{3, 4}XX silver CPU cores to SSB safelist Sasha Levin

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