On Tue, 12 Jan 2021 15:45:07 +1100
David Gibson wrote:
> The default behaviour for virtio devices is not to use the platforms normal
> DMA paths, but instead to use the fact that it's running in a hypervisor
> to directly access guest memory. That doesn't work if the guest's memory
> is
The default behaviour for virtio devices is not to use the platforms normal
DMA paths, but instead to use the fact that it's running in a hypervisor
to directly access guest memory. That doesn't work if the guest's memory
is protected from hypervisor access, such as with AMD's SEV or POWER's PEF.
