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Mon, 13 Jan 2020 09:22:05 +0000 MIME-Version: 1.0 Date: Mon, 13 Jan 2020 09:22:05 +0000 From: Marc Zyngier To: Chanho Park Subject: Re: [PATCH] arm64: add Cortex-A76 to spectre v2 safe-list In-Reply-To: <20200112151014.2593-1-parkch98@gmail.com> References: <20200112151014.2593-1-parkch98@gmail.com> Message-ID: <81a4e97c116e5cb4378092411069a80e@kernel.org> X-Sender: maz@kernel.org User-Agent: Roundcube Webmail/1.3.8 X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: parkch98@gmail.com, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200113_012207_275531_5C1EFBD8 X-CRM114-Status: GOOD ( 12.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2020-01-12 15:10, Chanho Park wrote: > Cortex A76(Enyo) core can be added in spectre v2(CVE-2017-5715 > (Spectre, > Variant 2, Branch Target Injection) safe list. > > Signed-off-by: Chanho Park > --- > arch/arm64/kernel/cpu_errata.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/kernel/cpu_errata.c > b/arch/arm64/kernel/cpu_errata.c > index 85f4bec22f6d..9895d56bf5ac 100644 > --- a/arch/arm64/kernel/cpu_errata.c > +++ b/arch/arm64/kernel/cpu_errata.c > @@ -546,6 +546,7 @@ static const struct midr_range > spectre_v2_safe_list[] = { > MIDR_ALL_VERSIONS(MIDR_CORTEX_A35), > MIDR_ALL_VERSIONS(MIDR_CORTEX_A53), > MIDR_ALL_VERSIONS(MIDR_CORTEX_A55), > + MIDR_ALL_VERSIONS(MIDR_CORTEX_A76), > MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53), > MIDR_ALL_VERSIONS(MIDR_HISI_TSV110), > { /* sentinel */ } Why? Doesn't Cortex-A76 already advertize ID_AA64PFR0_EL1.CSV2? M. -- Jazz is not dead. It just smells funny... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel