[Xen-users] xen assing nic

[rainbow <lvqq05@xxxxxxxxx>]

Hi,all, I install Xen for linux-3.0 and compile the kernel with iommu.  my domu kernel is the same kernel with the host machine. I hide nic  as http://wiki.xen.org/xenwiki/VTdHowTo procedure. 
If I add pci=['10:00.0'] at guest config file, then I will get 
NET: Registered protocol family 36
Registering the dns_resolver key type
registered taskstats version 1
blkfront: xvda2: barriers disabled
blkfront: xvda1: barriers disabled
XENBUS: Waiting for devices to initialise: 295s...290s...285s...280s...275s...270s...265s...260s...255s...250s...245s...240s...235s...230s...225s...220s...215s...210s...205s...200s...195s...190s...185s...180s...175s...170s...165s...160s...155s...150s...145s...140s...135s...130s...125s...120s...115s...110s...105s...100s...95s...90s...85s...80s...75s...70s...65s...60s...55s...50s...45s...40s...35s...30s...25s...20s...15s...10s...5s...0s...
XENBUS: Timeout connecting to device: device/pci/0 (local state 3, remote state 1)
XENBUS: Device with no driver: device/console/0
Freeing unused kernel memory: 716k freed
EXT3-fs: barriers not enabled
kjournald starting.  Commit interval 5 seconds
EXT3-fs (xvda2): mounted filesystem with writeback data mode
udev[862]: starting version 164
input: PC Speaker as /devices/platform/pcspkr/input/input0
Adding 131068k swap on /dev/xvda1.  Priority:-1 extents:1 across:131068k SS
EXT3-fs (xvda2): using internal journal
sshd (1291): /proc/1291/oom_adj is deprecated, please use /proc/1291/oom_score_adj instead.
eth0: no IPv6 routers present

Then I log on to guest os: 
#lspci 
get no output. but if I run #xm pci-list my_dom 
then I will get pci information. I don't know why. 

And a strange thing is when I start guest os first , I wii get the following information on the host dmesg:
181.154722] ------------[ cut here ]------------
 [  181.163039] WARNING: at arch/x86/xen/mmu.c:486 xen_make_pte_debug+0x99/0xfa()
 [  181.173959] Hardware name: ProLiant DL380 G6
 [  181.182005] 0x95bd3000 is using VM_IO, but it is 0x105dd8000!
 [  181.191559] Modules linked in: radeon ttm hpwdt drm_kms_helper bnx2 r8169 [last unloaded: scsi_wait_scan]
 [  181.205115] Pid: 3505, comm: xend Not tainted 3.0.0-xen2-iommu #2
 [  181.215108] Call Trace:
 [  181.221439]  [<ffffffff81006215>] ? xen_make_pte_debug+0x99/0xfa
 [  181.231354]  [<ffffffff81045d03>] warn_slowpath_common+0x80/0x99
 [  181.241248]  [<ffffffff81045dff>] warn_slowpath_fmt+0x69/0x6b
 [  181.250821]  [<ffffffff81006871>] ? xen_force_evtchn_callback+0xd/0xf
 [  181.261145]  [<ffffffff81006871>] ? xen_force_evtchn_callback+0xd/0xf
 [  181.271391]  [<ffffffff81006f12>] ? check_events+0x12/0x20
 [  181.280741]  [<ffffffff81007649>] ? get_phys_to_machine+0x26/0x5f
 [  181.290610]  [<ffffffff81004a2a>] ? pfn_to_mfn+0x12/0x2f
 [  181.299720]  [<ffffffff81006215>] xen_make_pte_debug+0x99/0xfa
 [  181.309293]  [<ffffffff810044cf>] __raw_callee_save_xen_make_pte_debug+0x11/0x1e
 [  181.320501]  [<ffffffff8100485b>] ? pfn_pte+0x33/0x35
 [  181.329317]  [<ffffffff810066cd>] remap_area_mfn_pte_fn+0x24/0x64
 [  181.339190]  [<ffffffff810cee32>] apply_to_page_range+0x20e/0x298
 [  181.349064]  [<ffffffff81006871>] ? xen_force_evtchn_callback+0xd/0xf
 [  181.359239]  [<ffffffff810066a9>] ? xen_set_domain_pte+0x7a/0x7a
 [  181.368912]  [<ffffffff81004cc0>] xen_remap_domain_mfn_range+0x97/0xef
 [  181.379136]  [<ffffffff811f0a28>] ? cpumask_any_but+0x1f/0x2c
 [  181.388454]  [<ffffffff810b8c84>] ? __alloc_pages_nodemask+0x13e/0x610
 [  181.398563]  [<ffffffff81038aee>] ? need_resched+0x1e/0x28
 [  181.407532]  [<ffffffff81271069>] mmap_batch_fn+0x32/0x51
 [  181.416364]  [<ffffffff81270b00>] traverse_pages+0x8c/0xad
 [  181.425262]  [<ffffffff81271037>] ? privcmd_ioctl+0x375/0x375
 [  181.434506]  [<ffffffff81270fde>] privcmd_ioctl+0x31c/0x375
 [  181.443515]  [<ffffffff811b8645>] ? inode_has_perm+0x2f/0x31
 [  181.452583]  [<ffffffff810fb4a4>] vfs_ioctl+0x18/0x2f
 [  181.461009]  [<ffffffff810fb9c2>] do_vfs_ioctl+0x437/0x48a
 [  181.469721]  [<ffffffff810fba6c>] sys_ioctl+0x57/0x7a
 [  181.477889]  [<ffffffff81513892>] system_call_fastpath+0x16/0x1b
 [  181.487033] ---[ end trace 3a9b3e835521feaa ]---
 [  181.781960] ADDRCONF(NETDEV_UP): vif1.0: link is not ready
 [  182.082542] device vif1.0 entered promiscuous mode
 [  182.135754] ADDRCONF(NETDEV_UP): vif1.0: link is not ready
 [  183.603896] xen-blkback:ring-ref 8, event-channel 9, protocol 1 (x86_64-abi)
 [  183.643943] xen-blkback:ring-ref 9, event-channel 10, protocol 1 (x86_64-abi)
 [  183.668937] ADDRCONF(NETDEV_CHANGE): vif1.0: link becomes ready
 [  183.678210] eth2: port 2(vif1.0) entering forwarding state
 [  183.686973] eth2: port 2(vif1.0) entering forwarding state
 [  194.547265] vif1.0: no IPv6 routers present
 [  246.549091] eth2: port 2(vif1.0) entering forwarding state
 [  246.557979] eth2: port 2(vif1.0) entering disabled state
 [  254.022803] ADDRCONF(NETDEV_UP): vif2.0: link is not ready
 [  254.320923] device vif2.0 entered promiscuous mode
 [  254.353327] ADDRCONF(NETDEV_UP): vif2.0: link is not ready
 [  255.045265] xen-blkback:ring-ref 9, event-channel 10, protocol 1 (x86_64-abi)
 [  255.100907] xen-blkback:ring-ref 10, event-channel 11, protocol 1 (x86_64-abi)
 [  255.125760] ADDRCONF(NETDEV_CHANGE): vif2.0: link becomes ready
 [  255.134859] eth2: port 2(vif2.0) entering forwarding state
 [  255.143391] eth2: port 2(vif2.0) entering forwarding state
 [  265.875280] vif2.0: no IPv6 routers present
 [ 1761.378188] eth2: port 2(vif2.0) entering forwarding state
 [ 1761.393523] eth2: port 2(vif2.0) entering disabled state
 [ 1805.767069] ADDRCONF(NETDEV_UP): vif3.0: link is not ready
 [ 1806.087673] device vif3.0 entered promiscuous mode
 [ 1806.132934] ADDRCONF(NETDEV_UP): vif3.0: link is not ready
 [ 1806.624631] xen-blkback:ring-ref 8, event-channel 9, protocol 1 (x86_64-abi)
 [ 1806.708691] xen-blkback:ring-ref 9, event-channel 10, protocol 1 (x86_64-abi)
 [ 1806.744669] ADDRCONF(NETDEV_CHANGE): vif3.0: link becomes ready
 [ 1806.753718] eth2: port 2(vif3.0) entering forwarding state
 [ 1806.762315] eth2: port 2(vif3.0) entering forwarding state
 [ 1817.123275] vif3.0: no IPv6 routers present

If I start the guest os again. there is no such information. 
I am very sorry for my english and I search many hours from the list but can not solve the problem. Thank you for your help!!
-- 
Qingquan Lv
School of Information Science & Engineering , Lanzhou University.
mail: lvqq05@xxxxxxxxx
Do what you like,
Enjoy your life.
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