[libvirt] [PATCH] Fix USB model defaults for ppc64

Martin Kletzander mkletzan at redhat.com
Fri Jan 8 12:53:59 UTC 2016


The condition was checking for UHCI (and OHCI for ppc64) availability so
that it can specify the proper device instead of legacy usb.  However,
for ppc64, we don't need to check both OHCI and UHCI, but only OHCI as
that is the legacy default.  The condition is so big that it was just a
matter of time when someone will make a mistake there, so let's use more
lines so that it is visible what the condition checks for.

This fixes usage of -device instead of -usb for ppc64 that supports
pci-usb-ohci and does not support piix3-usb-uhci.

Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
---
 src/qemu/qemu_command.c                            | 34 +++++++++++++++-------
 .../qemuxml2argv-ppc64-usb-controller-legacy.args  | 20 +++++++++++++
 .../qemuxml2argv-ppc64-usb-controller-legacy.xml   |  1 +
 .../qemuxml2argv-ppc64-usb-controller.args         | 20 +++++++++++++
 .../qemuxml2argv-ppc64-usb-controller.xml          | 28 ++++++++++++++++++
 tests/qemuxml2argvtest.c                           |  3 ++
 6 files changed, 95 insertions(+), 11 deletions(-)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.args
 create mode 120000 tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.xml

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 1f0593526b55..3f464a5fc21d 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -10049,18 +10049,30 @@ qemuBuildCommandLine(virConnectPtr conn,

                 if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_USB &&
                     cont->model == -1 &&
-                    !qemuDomainMachineIsQ35(def) &&
-                    (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI) ||
-                     (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_OHCI) &&
-                      ARCH_IS_PPC64(def->os.arch)))) {
-                    if (usblegacy) {
-                        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                                       _("Multiple legacy USB controllers are "
-                                         "not supported"));
-                        goto error;
+                    !qemuDomainMachineIsQ35(def)) {
+                    bool need_legacy = false;
+
+                    /* We're not using legacy usb controller for q35 */
+                    if (ARCH_IS_PPC64(def->os.arch)) {
+                        /* For ppc64 the legacy was OHCI */
+                        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_OHCI))
+                            need_legacy = true;
+                    } else {
+                        /* For anything else, we used * PIIX3_USB_UHCI */
+                        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI))
+                            need_legacy = true;
+                    }
+
+                    if (need_legacy) {
+                        if (usblegacy) {
+                            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                                           _("Multiple legacy USB controllers are "
+                                             "not supported"));
+                            goto error;
+                        }
+                        usblegacy = true;
+                        continue;
                     }
-                    usblegacy = true;
-                    continue;
                 }

                 virCommandAddArg(cmd, "-device");
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.args b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.args
new file mode 100644
index 000000000000..3dee41e86481
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.args
@@ -0,0 +1,20 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/libexec/qemu-system-ppc64 \
+-name QEMUGuest1 \
+-S \
+-M pseries \
+-m 256 \
+-smp 1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-nographic \
+-monitor unix:/tmp/test-monitor,server,nowait \
+-boot c \
+-usb \
+-net none \
+-serial none \
+-parallel none
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.xml b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.xml
new file mode 120000
index 000000000000..831d9d4f1c1b
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller-legacy.xml
@@ -0,0 +1 @@
+qemuxml2argv-ppc64-usb-controller.xml
\ No newline at end of file
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.args b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.args
new file mode 100644
index 000000000000..3dee41e86481
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.args
@@ -0,0 +1,20 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/libexec/qemu-system-ppc64 \
+-name QEMUGuest1 \
+-S \
+-M pseries \
+-m 256 \
+-smp 1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-nographic \
+-monitor unix:/tmp/test-monitor,server,nowait \
+-boot c \
+-usb \
+-net none \
+-serial none \
+-parallel none
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.xml b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.xml
new file mode 100644
index 000000000000..ce180ee34989
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-ppc64-usb-controller.xml
@@ -0,0 +1,28 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219100</memory>
+  <currentMemory unit='KiB'>219100</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <pae/>
+  </features>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>/usr/libexec/qemu-system-ppc64</emulator>
+    <controller type='usb' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+    </controller>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 63480ce8af19..1476def2f57d 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1764,6 +1764,9 @@ mymain(void)
             QEMU_CAPS_VIRTIO_MOUSE, QEMU_CAPS_VIRTIO_TABLET);
     DO_TEST("virtio-input-passthrough", QEMU_CAPS_DEVICE, QEMU_CAPS_VIRTIO_INPUT_HOST);

+    DO_TEST("ppc64-usb-controller", QEMU_CAPS_PCI_OHCI);
+    DO_TEST("ppc64-usb-controller-legacy", QEMU_CAPS_PIIX3_USB_UHCI);
+
     qemuTestDriverFree(&driver);

     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
-- 
2.7.0




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