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Re: [libvirt] [PATCH 1/1][RESEND] Set legacy USB option with default for ppc64.



On 2013年04月11日 17:41, Daniel P. Berrange wrote:
On Sun, Apr 07, 2013 at 05:00:06PM +0800, Li Zhang wrote:
On 2013年03月14日 14:54, Li Zhang wrote:
From: Li Zhang <zhlcindy linux vnet ibm com>

Currently, -device xxx still can't work well for ppc64 platform.
It's better use legacy USB option with default for ppc64.

This patch is to legacy USB option with default for ppc64.

Signed-off-by: Li Zhang <zhlcindy linux vnet ibm com>
---
  src/qemu/qemu_command.c |    3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 1c9bfc9..618dfb1 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -5783,7 +5783,8 @@ qemuBuildCommandLine(virConnectPtr conn,
                      }
                  } else if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_USB &&
                             cont->model == -1 &&
-                           !virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI)) {
+                           (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI) ||
+                            def->os.arch == VIR_ARCH_PPC64)) {
I think you ought to modify qemu_capabilities.c to clear the
QEMU_CAPS_PIIX3_USB_UHCI flag when arch == ppc, instead of
trying to modify every place which checks that cap.
Actually, PPC also can support PIIX3_USB_UHCI.
I think this patch is to set the default USB controller as in QEMU,
which can work correctly with USB keyboard and USB mouse.

In libvirt, there is no USB keyboard and mouse when no USB controller is specified.



Daniel


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