On Wed, 27 Apr 2022 18:13:32 +0100, Will Deacon wrote:
> When pKVM is enabled, host memory accesses are translated by an identity
> mapping at stage-2, which is populated lazily in response to synchronous
> exceptions from 64-bit EL1 and EL0.
>
> Extend this handling to cover exceptions originating from 32-bit EL0 as
> well. Although these are very unlikely to occur in practice, as the
> kernel typically ensures that user pages are initialised before mapping
> them in, drivers could still map previously untouched device pages into
> userspace and expect things to work rather than panic the system.
Applied to fixes, thanks!
[1/1] KVM: arm64: Handle host stage-2 faults from 32-bit EL0
commit: 2a50fc5fd09798cc154b587acd4f4ee261ea19be
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
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