This test case demonstrates how to explicitly opt into using
the uefi-vars device for an x86_64 guest.

Normally the firmware autoselection process will pick a UEFI
build that is loaded via pflash, but by including the <varstore>
element in the input XML we can tell the QEMU driver that we
want want the uefi-vars device to be used instead.

Currently this results in an error, because the firmware
autoselection algorithm doesn't yet know how to properly handle
the scenario. A future commit will address this and make things
work as expected.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
---
 ...are-auto-efi-varstore-q35.x86_64-latest.err |  1 +
 .../firmware-auto-efi-varstore-q35.xml         | 18 ++++++++++++++++++
 tests/qemuxmlconftest.c                        |  1 +
 3 files changed, 20 insertions(+)
 create mode 100644 tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.x86_64-latest.err
 create mode 100644 tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.xml

diff --git a/tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.x86_64-latest.err b/tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.x86_64-latest.err
new file mode 100644
index 0000000000..b45d304221
--- /dev/null
+++ b/tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.x86_64-latest.err
@@ -0,0 +1 @@
+Only one of NVRAM/varstore can be used
diff --git a/tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.xml b/tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.xml
new file mode 100644
index 0000000000..9cda95403e
--- /dev/null
+++ b/tests/qemuxmlconfdata/firmware-auto-efi-varstore-q35.xml
@@ -0,0 +1,18 @@
+<domain type='kvm'>
+  <name>guest</name>
+  <uuid>63840878-0deb-4095-97e6-fc444d9bc9fa</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os firmware='efi'>
+    <type arch='x86_64' machine='pc-q35-8.2'>hvm</type>
+    <varstore/>
+  </os>
+  <features>
+    <acpi/>
+  </features>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <controller type='usb' model='none'/>
+    <memballoon model='none'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconftest.c b/tests/qemuxmlconftest.c
index 95a890909d..c1542ae9b0 100644
--- a/tests/qemuxmlconftest.c
+++ b/tests/qemuxmlconftest.c
@@ -1645,6 +1645,7 @@ mymain(void)
     DO_TEST_CAPS_LATEST("firmware-auto-efi-nvram-file");
     DO_TEST_CAPS_LATEST("firmware-auto-efi-nvram-network-nbd");
     DO_TEST_CAPS_LATEST("firmware-auto-efi-nvram-network-iscsi");
+    DO_TEST_CAPS_LATEST_PARSE_ERROR("firmware-auto-efi-varstore-q35");
 
     DO_TEST_CAPS_LATEST("firmware-auto-efi-format-loader-qcow2");
     DO_TEST_CAPS_LATEST_PARSE_ERROR("firmware-auto-efi-format-loader-qcow2-rom");
-- 
2.53.0