Re: [Xen-devel] [TestDay]Xen-4.5.0-RC1: Not all PFs are available if assign multi VT-d devices to Wndows guest VM

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 13.11.14 at 03:23, <robert.hu@xxxxxxxxx> wrote:
> Bug detailed description:
> --------------------------
> Assign multi PF devices(I350, 82576, 82599) to installing Windows8.1 guest 
> VM
> with xl tool. After guest boot up, one PF could not get IP address and shows 
> as
> "Network cable unplugged", while other two PF devices could get IP address 
> and
> available.
> If only assign this unavailable PF to Windows guest VM, it worked normally.
> The issue could not be duplicated with multi VF devices assigned to Windows
> guest VM. 
> 
> Reproduce steps:
> ----------------
> 1. Create a HVM guest config file with multi PF devices(I350, 82576, 82599)
> assigned to installing Windows8.1 guest VM
> 2. Using xl tool to start guest with command "xl create hvm_config_file"
> 3. After guest boot up, check the network device, issue occurred.
> 
> Current result:
> ----------------
> Assign muti PF devices to windows guest, at least one PF device is not
> availabel.

And the same question again - without this being an Intel supported
scenario, and without it being excluded that this simply is a driver
issue, why do you report it in the first place. Plus I very much think
it ought to be your engineers to look into this (at least initially), and
in such a case posting with (at least) initial investigation results would
be more useful.

Jan


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