[PATCH v2 2/4] KVM: arm64: Don't WARN from __pkvm_host_share_guest()
Marc Zyngier
maz at kernel.org
Wed Feb 26 06:21:04 PST 2025
On Tue, 25 Feb 2025 19:49:43 +0000,
Quentin Perret <qperret at google.com> wrote:
>
> On Tuesday 25 Feb 2025 at 18:02:02 (+0000), Marc Zyngier wrote:
> > On Tue, 25 Feb 2025 01:53:25 +0000,
> > Quentin Perret <qperret at google.com> wrote:
> > >
> > > We currently WARN() if the host attempts to share a page that is not in
> > > an acceptable state with a guest. This isn't strictly necessary and
> > > makes testing much harder, so drop the WARN and fix the error code.
> >
> > Are you really fixing the error code? You still seem to return a
> > -EPERM. I guess this was never reachable thanks to WARN() being a
> > panic with pKVM?
>
> Exactly, this is really poor wording in the commit message. 'Fix the
> error code' in this case was intended to mean 'make sure to return the
> error code properly instead outright crashing the device'.
>
> Happy to send out a v3 with a better commit message.
Nah, that's probably something Oliver can fixup when picking up the
patch.
Thanks,
M.
--
Without deviation from the norm, progress is not possible.
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