It's most likely that your PCI devices reside on the same PCI bridge. When
including
support for FLR, a requirement check was added to have all PCI devices that
reside on
one PCI bridge to be co-assiged to one DomU, although that's not necessary when
the
DomU is PV.
You can check with lspci -tv whether this is the case and when you use pv
domains,
you might use this patch that will disable FLR and this kind of message.
BR,
Carsten.
diff -r 6ab55f716ce3 tools/python/xen/util/pci.py
--- a/tools/python/xen/util/pci.py Thu Oct 09 17:18:11 2008 +0100
+++ b/tools/python/xen/util/pci.py Fri Oct 10 13:16:00 2008 +0800
@@ -696,6 +696,7 @@ class PciDevice:
def do_FLR(self):
""" Perform FLR (Functional Level Reset) for the device.
"""
+ return
if self.dev_type == DEV_TYPE_PCIe_ENDPOINT:
# If PCIe device supports FLR, we use it.
if self.pcie_flr:
diff -r 6ab55f716ce3 tools/python/xen/xend/server/pciif.py
--- a/tools/python/xen/xend/server/pciif.py Thu Oct 09 17:18:11 2008 +0100
+++ b/tools/python/xen/xend/server/pciif.py Fri Oct 10 13:18:25 2008 +0800
@@ -375,6 +375,7 @@ class PciController(DevController):
pci_dev_list = pci_dev_list + [(domain, bus, slot, func)]
for (domain, bus, slot, func) in pci_dev_list:
+ continue
try:
dev = PciDevice(domain, bus, slot, func)
except Exception, e:
----- Originalnachricht -----
Von: Hans Jörg Maurer <hjm@xxxxxxxxxxxxx>
Gesendet: Die, 3.3.2009 11:56
An: xen-users@xxxxxxxxxxxxxxxxxxx
Betreff: [Xen-users] Paramters for PCI passthrough in config file
Hi,
I was trying now since two weeks to pass pci cards to different domU's.
First I used XEN 3.3, but there I got error messages like
must be co-assigned to the same guest , so I switched to other distris and
versions.
Now I have:
mainserver:/etc/xen# xm info
host : server
release : 2.6.26-1-xen-amd64
version : #1 SMP Sat Jan 10 20:39:26 UTC 2009
machine : x86_64
nr_cpus : 4
nr_nodes : 1
cores_per_socket : 4
threads_per_core : 1
cpu_mhz : 2394
hw_caps :
bfebfbff:20100800:00000000:00000140:0000e3bd:00000000:00000001
total_memory : 8180
free_memory : 256
node_to_cpu : node0:0-3
xen_major : 3
xen_minor : 2
xen_extra : -1
xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler : credit
xen_pagesize : 4096
platform_params : virt_start=0xffff800000000000
xen_changeset : unavailable
cc_compiler : gcc version 4.3.1 (Debian 4.3.1-2)
cc_compile_by : waldi
cc_compile_domain : debian.org
cc_compile_date : Sat Jun 28 09:32:18 UTC 2008
xend_config_format : 4
and run into the problem that I can pass only one pci to a DomU. I use the
following parameters in the /etc/xen/domU.cfg
pci = [ '11:00.0','11:09:0' ]
I have tried different versions like
pci = [ '11:00.0', '11:09:0' ] or
pci = [ '0000:11:00.0', '0000:11:09:0' ] and so on.
The only solution is to pass these parameters with the command line, like:
server:/etc/xen# xm create DomU.cfg -c pci='11:00.0' pci='11:09.0'
Then I get two PCI cards inside the DomU.
Does anyone know how to pass them correctly inside the config file.
Thanks
Hans
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