Re: [PATCH v13 18/40] arm64/hwcap: Add hwcap for GCS

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To: Mark Brown <broonie@xxxxxxxxxx>
Subject: Re: [PATCH v13 18/40] arm64/hwcap: Add hwcap for GCS
From: Yury Khrustalev <yury.khrustalev@xxxxxxx>
Date: Thu, 3 Oct 2024 17:25:39 +0100
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Marc Zyngier <maz@xxxxxxxxxx>, Oliver Upton <oliver.upton@xxxxxxxxx>, "James Morse" <james.morse@xxxxxxx>, Suzuki K Poulose <suzuki.poulose@xxxxxxx>, "Arnd Bergmann" <arnd@xxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Eric Biederman <ebiederm@xxxxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, "Rick P. Edgecombe" <rick.p.edgecombe@xxxxxxxxx>, Deepak Gupta <debug@xxxxxxxxxxxx>, "Ard Biesheuvel" <ardb@xxxxxxxxxx>, Szabolcs Nagy <Szabolcs.Nagy@xxxxxxx>, "Kees Cook" <kees@xxxxxxxxxx>, "H.J. Lu" <hjl.tools@xxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, Florian Weimer <fweimer@xxxxxxxxxx>, "Christian Brauner" <brauner@xxxxxxxxxx>, Thiago Jung Bauermann <thiago.bauermann@xxxxxxxxxx>, Ross Burton <ross.burton@xxxxxxx>, "David Spickett" <david.spickett@xxxxxxx>, Wilco Dijkstra <wilco.dijkstra@xxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, <linux-doc@xxxxxxxxxxxxxxx>, <kvmarm@xxxxxxxxxxxxxxx>, <linux-fsdevel@xxxxxxxxxxxxxxx>, <linux-arch@xxxxxxxxxxxxxxx>, <linux-mm@xxxxxxxxx>, <linux-kselftest@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <linux-riscv@xxxxxxxxxxxxxxxxxxx>
In-reply-to: <20241001-arm64-gcs-v13-18-222b78d87eee@kernel.org>
Nodisclaimer: true
References: <20241001-arm64-gcs-v13-0-222b78d87eee@kernel.org> <20241001-arm64-gcs-v13-18-222b78d87eee@kernel.org>

On Tue, Oct 01, 2024 at 11:58:57PM +0100, Mark Brown wrote:
> Provide a hwcap to enable userspace to detect support for GCS.
> 
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
>  #define HWCAP_PACA		(1 << 30)
>  #define HWCAP_PACG		(1UL << 31)
> +#define HWCAP_GCS		(1UL << 32)
>

Acked-by: Yury Khrustalev <yury.khrustalev@xxxxxxx>

References:
- [PATCH v13 00/40] arm64/gcs: Provide support for GCS in userspace
  - From: Mark Brown
- [PATCH v13 18/40] arm64/hwcap: Add hwcap for GCS
  - From: Mark Brown

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