On 8/25/25 10:19, Andrea Bolognani via Devel wrote:
One of the new test cases demonstrates how firmware
autoselection doesn't currently work correctly for domains
using SEV-SNP: the descriptor for a suitable firmware exists,
and yet it doesn't get picked up.
But the descriptor is incorrect. Autoselection using current git master works
fine with a proper descriptor for SNP.
IMO, we need to fix the descriptors (patches 8 and 9) before adding more tests
with invalid config.
The other test cases shows that, while firmware autoselection
succeeds for non-SNP SEV domains, the results are not the
expected ones: the generic (stateful) edk2 build is used
instead of the SEV-specific (stateless) one.
We need patch 9 to prevent selection of the stateful firmware, but then we'd hit
the problem fixed by patch 5 :-).
...
diff --git
a/tests/qemuxmlconfdata/firmware-auto-efi-sev.x86_64-latest+amdsev.args
b/tests/qemuxmlconfdata/firmware-auto-efi-sev.x86_64-latest+amdsev.args
new file mode 100644
index 0000000000..550ac52b8a
--- /dev/null
+++ b/tests/qemuxmlconfdata/firmware-auto-efi-sev.x86_64-latest+amdsev.args
@@ -0,0 +1,37 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/var/lib/libvirt/qemu/domain--1-guest \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-guest/.local/share \
+XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-guest/.cache \
+XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-guest/.config \
+/usr/bin/qemu-system-x86_64 \
+-name guest=guest,debug-threads=on \
+-S \
+-object
'{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-guest/master-key.aes"}'
\
+-blockdev
'{"driver":"file","filename":"/usr/share/edk2/ovmf/OVMF_CODE.fd","node-name":"libvirt-pflash0-storage","auto-read-only":true,"discard":"unmap"}'
\
+-blockdev
'{"node-name":"libvirt-pflash0-format","read-only":true,"driver":"raw","file":"libvirt-pflash0-storage"}'
\
+-blockdev
'{"driver":"file","filename":"/var/lib/libvirt/qemu/nvram/guest_VARS.fd","node-name":"libvirt-pflash1-storage","read-only":false}'
\
Writable pflash is not compatible with SEV(-ES) guests.
Regards,
Jim
