RE: [PATCH v9 0/7] Enable Linux guests on Hyper-V on ARM64

[Michael Kelley]

From: Michael Kelley <mikelley@xxxxxxxxxxxxx>
> Sent: Wednesday, March 24, 2021 8:55 AM
> To: will@xxxxxxxxxx; catalin.marinas@xxxxxxx; Mark Rutland <Mark.Rutland@xxxxxxx>;
> lorenzo.pieralisi@xxxxxxx; sudeep.holla@xxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-
> hyperv@xxxxxxxxxxxxxxx; linux-efi@xxxxxxxxxxxxxxx; arnd@xxxxxxxx; wei.liu@xxxxxxxxxx;
> ardb@xxxxxxxxxx; daniel.lezcano@xxxxxxxxxx; KY Srinivasan <kys@xxxxxxxxxxxxx>
> Subject: RE: [PATCH v9 0/7] Enable Linux guests on Hyper-V on ARM64
> 
> From: Michael Kelley <mikelley@xxxxxxxxxxxxx> Sent: Monday, March 8, 2021 11:57 AM
> >
> > This series enables Linux guests running on Hyper-V on ARM64
> > hardware. New ARM64-specific code in arch/arm64/hyperv initializes
> > Hyper-V, including its interrupts and hypercall mechanism.
> > Existing architecture independent drivers for Hyper-V's VMbus and
> > synthetic devices just work when built for ARM64. Hyper-V code is
> > built and included in the image and modules only if CONFIG_HYPERV
> > is enabled.
> 
> ARM64 maintainers --
> 
> What are the prospects for getting your review and Ack on this patch set?
> We're wanting to get the Hyper-V support on ARM64 finally accepted upstream.
> Previous comments should be addressed in this revision, with perhaps a
> remaining discussion point around the alternate SMCCC hypercall interface
> in Patch 1 that makes use of changes in v1.2 of the SMCCC spec.  There are
> several viable approaches that I've noted in the patch, depending on
> your preferences.
> 
> Michael

Thanks, Mark, for jumping in on the SMCCC hypercall interface.  But I'm still
looking for feedback or ACKs on the other patches in the series.  There's only
one place in Patch 2 of the series that needs the SMCCC v1.2 interface, and I'd
like to be able to respond to any remaining issues with the other patches
while the SMCCC details are finished up.

Michael