I would assume you see "Intel VT-d has been enabled" in you full log
file, correct?
Given that dom0 devices are working OK - this means VT-d translation is
working correctly for dom0.
The current code maps entire guest memory in VT-d by sharing with p2m
table. The vt-d page fault you are seeing should only happen if the
guest is using some DMA address that is not coverred by the P2m page
table - which is shouldn't have happened.
I have seen this type of fault if the BIOS is not programming VT-d HW
correctly.
Who's the vendor of this Stoakley system? We can try to duplicate the
problem here if we can get hold of the same system.
Allen
-----Original Message-----
From: Jean Guyader [mailto:jean...@eu.citrix.com]
Sent: Friday, March 28, 2008 10:50 AM
To: Kay, Allen M
Cc: xen-...@lists.xensource.com
Subject: Re: [Xen-devel] pci pass-through, NIC card
Kay, Allen M wrote:
Does this happen during xen/dom0 boot time or during HVM guest boot?
Are you using and desktop or server platform? Are you using
the latest
BIOS? Some older BIOS does not initialize VT-d HW properly.
It's a server platform, I could indeed check if it is the latest bios.
This is happen during the HVM guest boot, all initialisation
in dom0 are
ok. The device I tried to pass-through was a pci NIC.
I have tried to pass-through a PCIe NIC and it works better, I
mean the
hvm guest boot. The NIC card is well detected by the hvm guest but,
there is still a problem. When I tried to get an ip address
from dhcp I
received a storm of "iommu_page_fault" (enclosed the log).
The pci device I try to pass-through is at the address 8:0:0.
I have disable the pci msi in the guest.
Thanks,
7 messages in com.xensource.lists.xen-develRE: [Xen-devel] pci pass-through, NIC...
.Other, .dmesg, .lspci, 1 more