At 09/02/2011 09:18 AM, Marc-André Lureau Write:
Changes sinces v1:
- apply only to piix3
- check if piix3 controller is on correct address, or report error
I add usb controller:
<controller type='usb' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01' function='0x3'/>
</controller>
The address 0x01.0x3 is used by piix3-usb-uhci. Your patch does not
detect this error
---
src/qemu/qemu_command.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 2b8f548..3b1b4e5 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1089,6 +1089,7 @@ qemuAssignDevicePCISlots(virDomainDefPtr def,
qemuDomainPCIAddressSetPtr addrs)
{
int i;
bool reservedIDE = false;
+ bool reservedUSB = false;
bool reservedVGA = false;
/* Host bridge */
@@ -1119,13 +1120,20 @@ qemuAssignDevicePCISlots(virDomainDefPtr def,
qemuDomainPCIAddressSetPtr addrs)
def->controllers[i]->info.addr.pci.slot = 1;
def->controllers[i]->info.addr.pci.function = 1;
}
+ } else if (def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_USB
&&
+ def->controllers[i]->idx == 0 &&
+ def->controllers[i]->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI &&
+ def->controllers[i]->info.addr.pci.domain == 0 &&
+ def->controllers[i]->info.addr.pci.bus == 0 &&
+ def->controllers[i]->info.addr.pci.slot == 1) {
+ reservedUSB = true;
You must check the function. The slot 1 is reserved by qemu, we should only allow
the user to use function 1 for usb controller.
Thanks
Wen Congyang
}
}
/* PIIX3 (ISA bridge, IDE controller, something else unknown, USB controller)
* hardcoded slot=1, multifunction device
*/
- if (!reservedIDE &&
+ if (!reservedIDE && !reservedUSB &&
qemuDomainPCIAddressReserveSlot(addrs, 1) < 0)
goto error;