On 2014年04月09日 15:54, Nikunj A Dadhania wrote:
Li Zhang <zhlcindy@gmail.com> writes:
From: Li Zhang <zhlcindy@linux.vnet.ibm.com>
PPC64 prefers to set pci-ohci controller as default USB controller. Currently, libvirt is using legacy USB controller as default. There are problems with VGA which can't work correctly with USB Keyboard and USB Mouse. That requires would require a rephrase.
While providing -nodefaults, ppc64 should be specifying the usb controller explicitly in place of using the legacy controller(-usb). Qemu spapr initialization code when sees "-usb" adds a USB Keyboard and USB Mouse by default. And libvirt too has added a USB keyboard and USB mouse.
A recent fix in the in qemu VGA code uncoverd this problem, which resulted in addition of extra keyboard and mouse to the qemu machine.
Thanks, I will send out V2 with your information. :)
This patch is to set pci-ohci as USB default controller.
Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com> --- src/qemu/qemu_command.c | 5 +++-- tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-default.args | 2 +- 2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 379c094..46e851a 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -8466,8 +8466,9 @@ qemuBuildCommandLine(virConnectPtr conn, } else if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_USB && cont->model == -1 && !qemuDomainMachineIsQ35(def) && - (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI) || - def->os.arch == VIR_ARCH_PPC64)) { + (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI) || + (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_OHCI) && + def->os.arch == VIR_ARCH_PPC64))) { if (usblegacy) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("Multiple legacy USB controllers are " diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-default.args b/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-default.args index 3a21b76..eac7c56 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-default.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-default.args @@ -3,5 +3,5 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ -nographic -nodefconfig -nodefaults \ -chardev socket,id=charmonitor,path=/tmp/test-monitor,server,nowait \ -mon chardev=charmonitor,id=monitor,mode=readline -no-acpi -boot c \ --usb -chardev pty,id=charserial0 \ +-device pci-ohci,id=usb,bus=pci,addr=0x1 -chardev pty,id=charserial0 \ -device spapr-vty,chardev=charserial0,reg=0x30000000 -- 1.8.2.1