linux-kernel - Re: (subset) [PATCH v6 0/6] Add PSCI v1.3 SYSTEM

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Message-ID: <172989416837.3684225.4795897590830335669.b4-ty@linux.dev>
Date: Fri, 25 Oct 2024 22:12:41 +0000
From: Oliver Upton <oliver.upton@...ux.dev>
To: Zenghui Yu <yuzenghui@...wei.com>,
	James Morse <james.morse@....com>,
	linux-doc@...r.kernel.org,
	David Woodhouse <dwmw2@...radead.org>,
	Marc Zyngier <maz@...nel.org>,
	Jonathan Corbet <corbet@....net>,
	kvmarm@...ts.linux.dev,
	Len Brown <len.brown@...el.com>,
	Mark Rutland <mark.rutland@....com>,
	linux-kernel@...r.kernel.org,
	Pavel Machek <pavel@....cz>,
	Shuah Khan <shuah@...nel.org>,
	kvm@...r.kernel.org,
	Suzuki K Poulose <suzuki.poulose@....com>,
	David Woodhouse <dwmw@...zon.co.uk>,
	Miguel Luis <miguel.luis@...cle.com>,
	Will Deacon <will@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	linux-kselftest@...r.kernel.org,
	Francesco Lavra <francescolavra.fl@...il.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	linux-pm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: Oliver Upton <oliver.upton@...ux.dev>
Subject: Re: (subset) [PATCH v6 0/6] Add PSCI v1.3 SYSTEM_OFF2 support for hibernation

On Sat, 19 Oct 2024 18:15:41 +0100, David Woodhouse wrote:
> The PSCI v1.3 spec (https://developer.arm.com/documentation/den0022)
> adds support for a SYSTEM_OFF2 function enabling a HIBERNATE_OFF state
> which is analogous to ACPI S4. This will allow hosting environments to
> determine that a guest is hibernated rather than just powered off, and
> ensure that they preserve the virtual environment appropriately to
> allow the guest to resume safely (or bump the hardware_signature in the
> FACS to trigger a clean reboot instead).
> 
> [...]

I grabbed the KVM portions of this series, as they look ready to go. Happy
to take the last one through kvmarm tree w/ acks, and can toss it on top.

Applied to kvmarm/next, thanks!

[1/6] firmware/psci: Add definitions for PSCI v1.3 specification
      https://git.kernel.org/kvmarm/kvmarm/c/2f2d46959808
[2/6] KVM: arm64: Add PSCI v1.3 SYSTEM_OFF2 function for hibernation
      https://git.kernel.org/kvmarm/kvmarm/c/97413cea1c48
[3/6] KVM: arm64: Add support for PSCI v1.2 and v1.3
      https://git.kernel.org/kvmarm/kvmarm/c/8be82d536a9f
[4/6] KVM: selftests: Add test for PSCI SYSTEM_OFF2
      https://git.kernel.org/kvmarm/kvmarm/c/72be5aa6be4a
[5/6] KVM: arm64: nvhe: Pass through PSCI v1.3 SYSTEM_OFF2 call
      https://git.kernel.org/kvmarm/kvmarm/c/94f985c39a1e

--
Best,
Oliver