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From 09e42278625a78997f11ffe898e82684a6524131 Mon Sep 17 00:00:00 2001
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Message-Id: <09e42278625a78997f11ffe898e82684a6524131@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Fri, 28 Apr 2017 11:59:47 +0200
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Subject: [PATCH] qemu: change the logic of setting default USB controller
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The new logic will set the piix3-uhci if available regardless of
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any architecture and it will be updated to better model based on
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architecture and device existence.
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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Acked-by: Andrea Bolognani <abologna@redhat.com>
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(cherry picked from commit e69001b46448ae7e0f9f727965d4bea169ca2d9e)
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1438682
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_domain.c | 23 ++++++++++++++---------
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1 file changed, 14 insertions(+), 9 deletions(-)
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diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
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index 53586878b..a1a4003af 100644
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--- a/src/qemu/qemu_domain.c
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+++ b/src/qemu/qemu_domain.c
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@@ -3223,11 +3223,17 @@ qemuDomainControllerDefPostParse(virDomainControllerDefPtr cont,
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* when the relevant device is not available.
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*
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* See qemuBuildControllerDevCommandLine() */
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- if (ARCH_IS_S390(def->os.arch) &&
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- cont->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
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- /* set the default USB model to none for s390 unless an
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- * address is found */
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- cont->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE;
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+
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+ /* Default USB controller is piix3-uhci if available. */
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+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI))
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+ cont->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI;
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+
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+ if (ARCH_IS_S390(def->os.arch)) {
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+ if (cont->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
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+ /* set the default USB model to none for s390 unless an
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+ * address is found */
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+ cont->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE;
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+ }
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} else if (ARCH_IS_PPC64(def->os.arch)) {
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/* To not break migration we need to set default USB controller
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* for ppc64 to pci-ohci if we cannot change ABI of the VM.
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@@ -3238,11 +3244,10 @@ qemuDomainControllerDefPostParse(virDomainControllerDefPtr cont,
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cont->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI;
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} else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_OHCI)) {
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cont->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI;
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+ } else {
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+ /* Explicitly fallback to legacy USB controller for PPC64. */
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+ cont->model = -1;
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}
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- } else {
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- /* Default USB controller for anything else is piix3-uhci */
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- if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI))
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- cont->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI;
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}
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}
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/* forbid usb model 'qusb1' and 'qusb2' in this kind of hyperviosr */
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--
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2.12.2
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