linux-kernel - Re: [RFC PATCH v3 2/5] KVM: arm64: Add support for PSCI v1.2 and v1.3

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Date: Tue, 19 Mar 2024 08:42:58 -0700
From: Oliver Upton <oliver.upton@...ux.dev>
To: David Woodhouse <dwmw2@...radead.org>
Cc: linux-arm-kernel@...ts.infradead.org, kvm@...r.kernel.org,
	Paolo Bonzini <pbonzini@...hat.com>,
	Jonathan Corbet <corbet@....net>, Marc Zyngier <maz@...nel.org>,
	James Morse <james.morse@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	David Woodhouse <dwmw@...zon.co.uk>,
	Mostafa Saleh <smostafa@...gle.com>,
	Jean-Philippe Brucker <jean-philippe@...aro.org>,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	kvmarm@...ts.linux.dev, linux-pm@...r.kernel.org
Subject: Re: [RFC PATCH v3 2/5] KVM: arm64: Add support for PSCI v1.2 and v1.3

On Tue, Mar 19, 2024 at 12:59:03PM +0000, David Woodhouse wrote:
> From: David Woodhouse <dwmw@...zon.co.uk>
> 
> Since the v1.3 specification is still in Alpha, only default to v1.2
> unless userspace explicitly requests v1.3 for now.

The ABI is final the moment we take this, alpha or not. Let's just
advertise v1.3 from the start and only apply the series when things are
ready to go.

-- 
Thanks,
Oliver