If UEFI shim is specified in domain XML but QEMU is too old, then
report an error.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
---
 src/qemu/qemu_validate.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index f3ef1be660..6be8c29b75 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -740,6 +740,13 @@ qemuValidateDomainDefBoot(const virDomainDef *def,
             return -1;
     }
 
+    if (def->os.shim &&
+        !virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_SHIM)) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("shim is not supported by this QEMU binary"));
+        return -1;
+    }
+
     return 0;
 }
 
-- 
2.45.3