Re: [Xen-users] pv assign pci device

[jacek burghardt <jaceksburghardt@xxxxxxxxx>]

Well the strange part is that when I assign devices in this case all usb ports lspci lsusb does not show anything. Is even posible to assign device if system does not support iommu there is vd-t ?

On Wed, Jun 12, 2013 at 12:13 AM, Gordan Bobic <gordan@xxxxxxxxxx> wrote:

On 06/12/2013 02:01 AM, jacek burghardt wrote:

I have xeon quad core server I wonder if is possible to assign pci usb
device to pv if the server does not suport iommu vd-t
I had blacklisted usb modules and hid devices and devices are listed as
assignable
but when I add them to pv I get this error libxl: error: libxl: error:
libxl_pci.c:989:libxl__device_pci_reset: The kernel doesn't support
reset from sysfs for PCI device 0000:00:1d.0
libxl: error: libxl_pci.c:989:libxl__device_pci_reset: The kernel
doesn't support reset from sysfs for PCI device 0000:00:1d.1
Daemon running with PID 897

I don't think that is a fatal error. I get that on, for example, the VGA card passed through to the VM, but it still works inside the domU. It just means the device doesn't support FLR.

Gordan

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