linux-kernel - Re: [PATCH v4 0/9] arm64: Support 2024 dpISA extensions

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Message-ID: <86zfk2wnik.wl-maz@kernel.org>
Date: Tue, 07 Jan 2025 17:18:43 +0000
From: Marc Zyngier <maz@...nel.org>
To: Will Deacon <will@...nel.org>
Cc: Catalin Marinas <catalin.marinas@....com>,
	Jonathan Corbet <corbet@....net>,
	Oliver Upton <oliver.upton@...ux.dev>,
	Joey Gouly <joey.gouly@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Shuah Khan <shuah@...nel.org>,
	Mark Brown <broonie@...nel.org>,
	kernel-team@...roid.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org,
	kvmarm@...ts.linux.dev,
	linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v4 0/9] arm64: Support 2024 dpISA extensions

On Tue, 07 Jan 2025 16:42:38 +0000,
Will Deacon <will@...nel.org> wrote:
> 
> On Wed, 11 Dec 2024 01:02:45 +0000, Mark Brown wrote:
> > The 2024 architecture release includes a number of data processing
> > extensions, mostly SVE and SME additions with a few others.  These are
> > all very straightforward extensions which add instructions but no
> > architectural state so only need hwcaps and exposing of the ID registers
> > to KVM guests and userspace.
> > 
> > 
> > [...]
> 
> For the sysreg definitions that Marc's fantastic script is happy with,
> applied to arm64 (for-next/cpufeature), thanks!
> 
> [1/9] arm64/sysreg: Update ID_AA64PFR2_EL1 to DDI0601 2024-09
>       https://git.kernel.org/arm64/c/1ad9a56442a0
> [2/9] arm64/sysreg: Update ID_AA64ISAR3_EL1 to DDI0601 2024-09
>       https://git.kernel.org/arm64/c/054339beae58
> [3/9] arm64/sysreg: Update ID_AA64FPFR0_EL1 to DDI0601 2024-09
>       https://git.kernel.org/arm64/c/12b5ff517a19
> [4/9] arm64/sysreg: Update ID_AA64ZFR0_EL1 to DDI0601 2024-09
>       https://git.kernel.org/arm64/c/9a43ee864349
> 
> [6/9] arm64/sysreg: Update ID_AA64ISAR2_EL1 to DDI0601 2024-09
>       https://git.kernel.org/arm64/c/d66e21d59ed0
> 
> The KVM patch needs an Ack from the maintainers and the hwcap change
> probably needs checking in light of [1].

I've now acked the KVM patch in case you want to take it, or I can add
it to the KVM queue, since I already have a merge of the cpufeature
branch.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.