[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <Zr807_K0y2UtvPWg@arm.com>
Date: Fri, 16 Aug 2024 12:15:59 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Mark Brown <broonie@...nel.org>
Cc: Will Deacon <will@...nel.org>, Jonathan Corbet <corbet@....net>,
Andrew Morton <akpm@...ux-foundation.org>,
Marc Zyngier <maz@...nel.org>,
Oliver Upton <oliver.upton@...ux.dev>,
James Morse <james.morse@....com>,
Suzuki K Poulose <suzuki.poulose@....com>,
Arnd Bergmann <arnd@...db.de>, Oleg Nesterov <oleg@...hat.com>,
Eric Biederman <ebiederm@...ssion.com>,
Shuah Khan <shuah@...nel.org>,
"Rick P. Edgecombe" <rick.p.edgecombe@...el.com>,
Deepak Gupta <debug@...osinc.com>, Ard Biesheuvel <ardb@...nel.org>,
Szabolcs Nagy <Szabolcs.Nagy@....com>, Kees Cook <kees@...nel.org>,
"H.J. Lu" <hjl.tools@...il.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Florian Weimer <fweimer@...hat.com>,
Christian Brauner <brauner@...nel.org>,
Thiago Jung Bauermann <thiago.bauermann@...aro.org>,
Ross Burton <ross.burton@....com>,
linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
kvmarm@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
linux-arch@...r.kernel.org, linux-mm@...ck.org,
linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v10 10/40] arm64/cpufeature: Runtime detection of Guarded
Control Stack (GCS)
On Thu, Aug 01, 2024 at 01:06:37PM +0100, Mark Brown wrote:
> @@ -2870,6 +2872,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
> .matches = has_nv1,
> ARM64_CPUID_FIELDS_NEG(ID_AA64MMFR4_EL1, E2H0, NI_NV1)
> },
> + {
> + .desc = "Guarded Control Stack (GCS)",
> + .capability = ARM64_HAS_GCS,
> + .type = ARM64_CPUCAP_SYSTEM_FEATURE,
Given that it's for user space only, system feature makes sense.
Reviewed-by: Catalin Marinas <catalin.marinas@....com>
Powered by blists - more mailing lists