On 2020-07-07 13:14, Michael S. Tsirkin wrote:
On Tue, Jul 07, 2020 at 11:46:33AM +0200, Cornelia Huck wrote:
On Tue, 7 Jul 2020 10:44:37 +0200
Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote:
S390, protecting the guest memory against unauthorized host access
needs to enforce VIRTIO I/O device protection through the use of
VIRTIO_F_VERSION_1 and VIRTIO_F_IOMMU_PLATFORM.
Hm... what about:
"If protected virtualization is active on s390, the virtio queues are
not accessible to the host, unless VIRTIO_F_IOMMU_PLATFORM has been
negotiated. Use the new arch_validate_virtio_features() interface to
enforce this."
s/enforce this/fail probe if that's not the case, preventing a host error on access attempt/
yes, more complete, thanks.
regards,
Pierre
--
Pierre Morel
IBM Lab Boeblingen
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