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From: David Woodhouse <dwmw2@infradead.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>
Cc: Zenghui Yu <yuzenghui@huawei.com>,
	James Morse <james.morse@arm.com>,
	 linux-doc@vger.kernel.org, Marc Zyngier <maz@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	kvmarm@lists.linux.dev, Len Brown <len.brown@intel.com>,
	 Mark Rutland <mark.rutland@arm.com>,
	linux-kernel@vger.kernel.org, Pavel Machek <pavel@ucw.cz>,
	Shuah Khan <shuah@kernel.org>,
	kvm@vger.kernel.org, Suzuki K Poulose <suzuki.poulose@arm.com>,
	 Miguel Luis <miguel.luis@oracle.com>,
	Will Deacon <will@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	 Paolo Bonzini <pbonzini@redhat.com>,
	linux-kselftest@vger.kernel.org,
	Francesco Lavra <francescolavra.fl@gmail.com>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	 linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: (subset) [PATCH v6 0/6] Add PSCI v1.3 SYSTEM_OFF2 support for hibernation
Date: Thu, 31 Oct 2024 17:18:57 +0000	[thread overview]
Message-ID: <74db59658c40fad82d681bd1ebcf893c7ec27322.camel@infradead.org> (raw)
In-Reply-To: <ZyN09BSZqKLXLi6_@arm.com>

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On Thu, 2024-10-31 at 12:15 +0000, Catalin Marinas wrote:
> On Fri, Oct 25, 2024 at 10:12:41PM +0000, Oliver Upton wrote:
> > 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.
> 
> Happy for you to take the last patch as well through the KVM tree. Feel
> free to adjust the code comment as you see fit.

Thanks. that's probably the best option, as it depends on the
definitions in psci.h.



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  reply	other threads:[~2024-10-31 17:25 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-19 17:15 [PATCH v6 0/6] Add PSCI v1.3 SYSTEM_OFF2 support for hibernation David Woodhouse
2024-10-19 17:15 ` [PATCH v6 1/6] firmware/psci: Add definitions for PSCI v1.3 specification David Woodhouse
2024-10-23 15:31   ` Miguel Luis
2024-10-19 17:15 ` [PATCH v6 2/6] KVM: arm64: Add PSCI v1.3 SYSTEM_OFF2 function for hibernation David Woodhouse
2024-10-23 16:02   ` Miguel Luis
2024-10-19 17:15 ` [PATCH v6 3/6] KVM: arm64: Add support for PSCI v1.2 and v1.3 David Woodhouse
2024-10-23 16:21   ` Miguel Luis
2024-10-19 17:15 ` [PATCH v6 4/6] KVM: selftests: Add test for PSCI SYSTEM_OFF2 David Woodhouse
2024-10-19 17:15 ` [PATCH v6 5/6] KVM: arm64: nvhe: Pass through PSCI v1.3 SYSTEM_OFF2 call David Woodhouse
2024-10-24 10:42   ` Miguel Luis
2024-10-19 17:15 ` [PATCH v6 6/6] arm64: Use SYSTEM_OFF2 PSCI call to power off for hibernate David Woodhouse
2024-10-24 12:54   ` Miguel Luis
2024-10-24 13:48     ` David Woodhouse
2024-10-24 15:44       ` Oliver Upton
2024-10-24 15:56         ` David Woodhouse
2024-10-24 19:57           ` Oliver Upton
2024-10-25  6:13             ` David Woodhouse
2024-10-25 20:40               ` Oliver Upton
2024-10-31 18:00                 ` David Woodhouse
2024-10-31 12:16   ` Catalin Marinas
2024-10-31 17:55   ` Lorenzo Pieralisi
2024-11-01 17:48     ` Lorenzo Pieralisi
2024-11-04 13:54       ` Ard Biesheuvel
2024-11-04 15:11         ` Lorenzo Pieralisi
2024-10-25 22:12 ` (subset) [PATCH v6 0/6] Add PSCI v1.3 SYSTEM_OFF2 support for hibernation Oliver Upton
2024-10-31 12:15   ` Catalin Marinas
2024-10-31 17:18     ` David Woodhouse [this message]
2024-10-31 17:56 ` Oliver Upton
2024-10-31 18:01   ` David Woodhouse

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