(subset) [PATCH v6 0/6] Add PSCI v1.3 SYSTEM_OFF2 support for hibernation
David Woodhouse
dwmw2 at infradead.org
Thu Oct 31 10:18:57 PDT 2024
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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