qemu: Auto add pci-root for s390/s390x guests

The pci-root depends on zpci capability. So autogenerate pci-root if
zpci exists.

Signed-off-by: Yi Min Zhao <zyimin@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Stefan Zimmermann <stzi@linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index c374219aabf948908ffdee8d3742df1a052ba303..b62f72a59eef9e67b52decd2eb13bb1f51c1abfc 100644 (file)
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3290,6 +3290,7 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def,
     case VIR_ARCH_S390X:
         addDefaultUSB = false;
         addPanicDevice = true;
+        addPCIRoot = virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ZPCI);
         break;
 
     case VIR_ARCH_SPARC: