[PATCH v3 07/18] KVM: arm64: nVHE: Don't consume host SErrors with ESB

[Marc Zyngier]

On Thu, 03 Sep 2020 14:52:56 +0100,
Andrew Scull <ascull at google.com> wrote:
> 
> The ESB at the start of the host vector may cause SErrors to be consumed
> to DISR_EL1. However, this is not checked for the host so the SError
> could go unhandled.
> 
> Remove the ESB so that SErrors are not consumed but are instead left
> pending for the host to consume. __guest_enter already defers entry into
> a guest if there are any SErrors pending.
> 
> Fixes: 0e5b9c085dce ("KVM: arm64: Consume pending SError as early as possible")

I'd drop the Fixes: tag here. The KVM RAS support was never designed
to use nVHE the first place, and this patch is impossible to backport
without dragging tons of other patches, turning it into a nightmare.

The patch itself is fine.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.