Re: [PATCH v5 10/22] KVM: arm64: vgic-its: Implement vgic_mmio_uaccess_write_its_iidr

Prakash B
2017-04-26T11:27:57Z

On Fri, Apr 14, 2017 at 3:45 PM, Eric Auger <eric.auger@redhat.com> wrote:
> The GITS_IIDR revision field is used to encode the migration ABI
> revision. So we need to restore it to check the table layout is
> readable by the destination.
>
> By writing the IIDR, userspace thus force the ABI revision to be
> used and this msut be less or equal than the max revision KVM supports.
>
> Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Prakash, Brahmajyosyula <Brahmajyosyula.Prakash@cavium.com>