On 6/9/21 7:05 AM, Gerd Hoffmann wrote: > virtio-mmio support in ovmf seems to be the unloved child. The final > virto-1.0 specification was published five(!) years ago, nevertheless > the mmio transport doesn't support it yet ... > > Some people argue that it has been obsoleted by virtio-pci. Which is a > valid argument. But IMHO isn't a good reason to just let virtio-mmio > bitrot. We should either remove it from the tree, or support it. > > So, opening the discussion with this little patch series. It does the > latter and adds virtio 1.0 support. For the mmio transport the > difference between 0.9.5 and 1.0 is rather small (when compared to the > pci transport), it is just a bunch of new registers for the changed > virtio queue initialization. So the patch series is small too ... > > take care, > Gerd > > Gerd Hoffmann (2): > OvmfPkg/Virtio10: Add virtio-mmio 1.0 defines > OvmfPkg/VirtioMmioDeviceLib: Add virtio 1.0 support. > > OvmfPkg/Include/IndustryStandard/Virtio10.h | 12 +++++++ > .../VirtioMmioDeviceLib/VirtioMmioDevice.h | 1 + > .../VirtioMmioDeviceLib/VirtioMmioDevice.c | 17 +++++++--- > .../VirtioMmioDeviceFunctions.c | 31 +++++++++++++++++-- > 4 files changed, 54 insertions(+), 7 deletions(-)
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