10:40 p.m.
We should ensure that QEMU supports zPCI when a zPCI address is defined
in XML and otherwise report an error. This patch introduces a generic
validation function qemuDomainDeviceDefValidateAddress() which calls
qemuDomainDeviceDefValidateZPCIAddress() if address type is PCI address.
Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com>
Reviewed-by: Andrea Bolognani <abologna(a)redhat.com>
---
src/qemu/qemu_domain.c | 36 +++++++++++++++++++
.../hostdev-vfio-zpci-wrong-arch.xml | 34 ++++++++++++++++++
tests/qemuxml2argvtest.c | 2 ++
3 files changed, 72 insertions(+)
create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci-wrong-arch.xml
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 961755ef84..8bdc3f58e8 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -5797,6 +5797,38 @@ qemuDomainDeviceDefValidateInput(const virDomainInputDef *input,
}
+static int
+qemuDomainDeviceDefValidateZPCIAddress(virDomainDeviceInfoPtr info,
+ virQEMUCapsPtr qemuCaps)
+{
+ if (!virZPCIDeviceAddressIsEmpty(&info->addr.pci.zpci) &&
+ !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ZPCI)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ "%s",
+ _("This QEMU binary doesn't support zPCI"));
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static int
+qemuDomainDeviceDefValidateAddress(const virDomainDeviceDef *dev,
+ virQEMUCapsPtr qemuCaps)
+{
+ virDomainDeviceInfoPtr info;
+
+ if (!(info = virDomainDeviceGetInfo((virDomainDeviceDef *)dev)))
+ return 0;
+
+ if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
+ return qemuDomainDeviceDefValidateZPCIAddress(info, qemuCaps);
+
+ return 0;
+}
+
+
static int
qemuDomainDeviceDefValidate(const virDomainDeviceDef *dev,
const virDomainDef *def,
@@ -5810,6 +5842,9 @@ qemuDomainDeviceDefValidate(const virDomainDeviceDef *dev,
def->emulator)))
return -1;
+ if ((ret = qemuDomainDeviceDefValidateAddress(dev, qemuCaps)) < 0)
+ goto cleanup;
+
switch ((virDomainDeviceType)dev->type) {
case VIR_DOMAIN_DEVICE_NET:
ret = qemuDomainDeviceDefValidateNetwork(dev->data.net);
@@ -5885,6 +5920,7 @@ qemuDomainDeviceDefValidate(const virDomainDeviceDef *dev,
break;
}
+ cleanup:
virObjectUnref(qemuCaps);
return ret;
}
diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci-wrong-arch.xml
b/tests/qemuxml2argvdata/hostdev-vfio-zpci-wrong-arch.xml
new file mode 100644
index 0000000000..bfb2f83a3b
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci-wrong-arch.xml
@@ -0,0 +1,34 @@
+<domain type='qemu'>
+ <name>QEMUGuest2</name>
+ <uuid>c7a5fdbd-edaf-9466-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i686</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest2'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0'
target='0' unit='0'/>
+ </disk>
+ <controller type='pci' index='0' model='pci-root'/>
+ <hostdev mode='subsystem' type='pci' managed='yes'>
+ <driver name='vfio'/>
+ <source>
+ <address domain='0x0001' bus='00' slot='00'
function='0'/>
+ </source>
+ <address type='pci' domain='0x0000' bus='0x00'
slot='0x08' function='0x0'>
+ <zpci uid='0x0019' fid='0x0000001f'/>
+ </address>
+ </hostdev>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 7b9e6bf2be..09c52f5f38 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1683,6 +1683,8 @@ mymain(void)
DO_TEST_PARSE_ERROR("hostdev-mdev-display-missing-graphics",
QEMU_CAPS_DEVICE_VFIO_PCI,
QEMU_CAPS_VFIO_PCI_DISPLAY);
+ DO_TEST_PARSE_ERROR("hostdev-vfio-zpci-wrong-arch",
+ QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST("hostdev-vfio-zpci",
QEMU_CAPS_DEVICE_VFIO_PCI,
QEMU_CAPS_DEVICE_ZPCI);
--
Yi Min