Hello,
After much digging and searching the internet, I have found what needs to be
used to get IOMMU enabled and, hence start a SEV vm using VIRTIO :
-device
virtio-blk-pci,drive=drive0,id=virblk0,num-queues=4,disable-modern=off,disable-legacy=on,iommu_platform=on
\
-drive file=/var/lib/libvirt/images/real-qemu.qcow2,if=none,id=drive0 \
The addition of disable-modern=off,disable-legacy=on does the trick !
Thanks for your suggestions.
...Louis
** Changed in: qemu (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1915509
Title:
QEMU 1:4.2-3ubuntu6.12 : Unable to start SEV enabled VM using virtio
driver
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