qemuBuildPCIHostdevDevStr: Always format PCI domain onto cmd line

While it's true that older QEMUs were not able to deal with PCI
domains, we don't support those versions anymore (see
4a42ece13a538). Therefore it is safe to always format fully
expanded PCI address. Format PCI domain always as it will
simplify next commits.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

src/qemu/qemu_command.c

@@ -4933,10 +4933,10 @@ qemuBuildPCIHostdevDevStr(const virDomainDef *def,
     }
 
     virBufferAddLit(&buf, ",host=");
-    if (pcisrc->addr.domain)
+    virBufferAsprintf(&buf, "%.4x:%.2x:%.2x.%.1x",
-        virBufferAsprintf(&buf, "%.4x:", pcisrc->addr.domain);
+                      pcisrc->addr.domain,
-    virBufferAsprintf(&buf, "%.2x:%.2x.%.1x",
+                      pcisrc->addr.bus,
-                      pcisrc->addr.bus, pcisrc->addr.slot,
+                      pcisrc->addr.slot,
                       pcisrc->addr.function);
     virBufferAsprintf(&buf, ",id=%s", dev->info->alias);
     if (dev->info->bootIndex)

tests/qemuxml2argvdata/hostdev-pci-address-device.args

@@ -27,5 +27,5 @@ server,nowait \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest2,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
--device pci-assign,host=06:12.5,id=hostdev0,bus=pci.0,addr=0x3 \
+-device pci-assign,host=0000:06:12.5,id=hostdev0,bus=pci.0,addr=0x3 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

tests/qemuxml2argvdata/hostdev-pci-address.args

@@ -27,4 +27,4 @@ server,nowait \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest2,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
--device pci-assign,host=06:12.5,id=hostdev0,bus=pci.0,addr=0x3
+-device pci-assign,host=0000:06:12.5,id=hostdev0,bus=pci.0,addr=0x3

tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.args

@@ -24,6 +24,6 @@ server,nowait \
 -rtc base=utc \
 -no-shutdown \
 -device zpci,uid=1,fid=0,target=hostdev0,id=zpci1 \
--device vfio-pci,host=00:00.0,id=hostdev0,bus=pci.0,addr=0x1 \
+-device vfio-pci,host=0000:00:00.0,id=hostdev0,bus=pci.0,addr=0x1 \
 -device zpci,uid=2,fid=1,target=balloon0,id=zpci2 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2

tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.args

@@ -28,6 +28,6 @@ server,nowait \
 -device zpci,uid=65535,fid=4294967295,target=hostdev0,id=zpci65535 \
 -device vfio-pci,host=ffff:00:00.0,id=hostdev0,bus=pci.1,addr=0x1f \
 -device zpci,uid=1,fid=0,target=hostdev1,id=zpci1 \
--device vfio-pci,host=00:00.0,id=hostdev1,bus=pci.0,addr=0x2 \
+-device vfio-pci,host=0000:00:00.0,id=hostdev1,bus=pci.0,addr=0x2 \
 -device zpci,uid=2,fid=1,target=balloon0,id=zpci2 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3

tests/qemuxml2argvdata/hostdev-vfio-zpci.args

@@ -24,6 +24,6 @@ server,nowait \
 -rtc base=utc \
 -no-shutdown \
 -device zpci,uid=25,fid=31,target=hostdev0,id=zpci25 \
--device vfio-pci,host=00:00.0,id=hostdev0,bus=pci.0,addr=0x8 \
+-device vfio-pci,host=0000:00:00.0,id=hostdev0,bus=pci.0,addr=0x8 \
 -device zpci,uid=1,fid=0,target=balloon0,id=zpci1 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x1

tests/qemuxml2argvdata/hostdev-vfio.args

@@ -27,5 +27,5 @@ server,nowait \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest2,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
--device vfio-pci,host=06:12.5,id=hostdev0,bus=pci.0,addr=0x3 \
+-device vfio-pci,host=0000:06:12.5,id=hostdev0,bus=pci.0,addr=0x3 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

tests/qemuxml2argvdata/net-hostdev-bootorder.args

@@ -27,4 +27,5 @@ server,nowait \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 \
--device pci-assign,host=03:07.1,id=hostdev0,bootindex=1,bus=pci.0,addr=0x3
+-device pci-assign,host=0000:03:07.1,id=hostdev0,bootindex=1,bus=pci.0,\
+addr=0x3

tests/qemuxml2argvdata/net-hostdev-vfio.args

@@ -27,5 +27,5 @@ server,nowait \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
--device vfio-pci,host=03:07.1,id=hostdev0,bus=pci.0,addr=0x3 \
+-device vfio-pci,host=0000:03:07.1,id=hostdev0,bus=pci.0,addr=0x3 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

tests/qemuxml2argvdata/net-hostdev.args

@@ -27,5 +27,5 @@ server,nowait \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
--device pci-assign,host=03:07.1,id=hostdev0,bus=pci.0,addr=0x3 \
+-device pci-assign,host=0000:03:07.1,id=hostdev0,bus=pci.0,addr=0x3 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

tests/qemuxml2argvdata/pci-rom.args

@@ -33,7 +33,7 @@ addr=0x3,rombar=1 \
 -netdev user,id=hostnet1 \
 -device virtio-net-pci,netdev=hostnet1,id=net1,mac=52:54:00:24:a5:9e,bus=pci.0,\
 addr=0x4,romfile=/etc/fake/bootrom.bin \
--device pci-assign,host=06:12.5,id=hostdev0,bus=pci.0,addr=0x5,rombar=0 \
+-device pci-assign,host=0000:06:12.5,id=hostdev0,bus=pci.0,addr=0x5,rombar=0 \
--device pci-assign,host=06:12.6,id=hostdev1,bus=pci.0,addr=0x6,rombar=1,\
+-device pci-assign,host=0000:06:12.6,id=hostdev1,bus=pci.0,addr=0x6,rombar=1,\
 romfile=/etc/fake/bootrom.bin \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7