[RFC PATCH v1 2/2] KVM: arm64: Allow the RAS feature bit in ID_AA64PFR0_EL1 writable from userspace

[Oliver Upton]

On Wed, Sep 25, 2024 at 11:22:40PM -0400, Shaoqin Huang wrote:
> Currently FEAT_RAS is not writable, this makes migration fail between
> systems where this feature differ. Allow the FEAT_RAS writable in
> ID_AA64PFR0_EL1 to let the migration possible when the RAS is differ
> between two machines.
> 
> Also update the kselftest to test the RAS field.

Please do kernel + selftests changes in separate patches.

-- 
Thanks,
Oliver