Le 08/09/2012 19:46, Michael Tokarev a écrit :
> On 08.09.2012 20:55, michael chlon wrote:
>> Package: qemu-kvm
>> Version: 1.1.1+dfsg-1
>> Severity: normal
>>
>> Dear Maintainer,
>>
>> I try to bind my WiFi card - Atheros ( module ath5k) - with my VM
>> in dorder to present WiFi card to the VM.
>> I try this with PCi Passtrough.
>> I have read a lot on internet, and done this:
>>
>> - Activate iommu with for my kernel:
>>
> []
>
>> - Then, activate the kvm module parameter (as request in syslog and VM
>> log !):
>>
>> options kvm allow_unsafe_assigned_interrupts=1
>>
>> - Kernel: 3.2.0-3-amd64
>> - qmeu-kvm: 1.1.1+dfsg-1
>>
>> But each time, impossible to boot, with this messsage in virt-manager:
>> Unable to read from monitor: Connection reset by peer
>>
>> Traceback (most recent call last):
>> File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in
>> cb_wrapper
>> callback(asyncjob, *args, **kwargs)
>> File "/usr/share/virt-manager/virtManager/asyncjob.py", line 66,
>> in tmpcb
>> callback(*args, **kwargs)
>> File "/usr/share/virt-manager/virtManager/domain.py", line
>> 1114, in startup
>> self._backend.create()
>> File "/usr/lib/python2.7/dist-packages/libvirt.py",
>> line 620, in create
>> if ret == -1: raise libvirtError
>> ('virDomainCreate() failed', dom=self)
>> libvirtError: Unable to read from monitor:
>> Connection reset by peer
>>
>> The good new ... is that the VM boot with my ethernet NIC card !
> Please show what _kvm_ process says. It might be somewhere in
> libvirt logs. And please complain to libvirt for not showing
> error messages.
=== 8< ================================================================
=> Output of libvirt.log:
2012-09-08 21:27:35.632+0000: 7778: warning : qemuDomainObjTaint:1371 :
Domain id=2 name='android_4_0' uuid=65471d1a-613d-9046-94ce-2d57e234033e
is tainted: high-privileges
2012-09-08 21:27:36.803+0000: 7776: error : qemuMonitorIORead:527 :
Unable to read from monitor: Connection reset by peer
=== 8< ===============================================================
=> And in the VM log (qemu log):
2012-09-08 21:27:35.632+0000: starting up
LC_ALL=C
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HOME=/
QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-1.1 -enable-kvm -m 1024 -smp
1,sockets=1,cores=1,threads=1 -name android_4
_0 -uuid 65471d1a-613d-9046-94ce-2d57e234033e -nodefconfig -nodefaults
-chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/android_4_0.monitor,server,nowait
-mon chardev=charmonitor,id=monitor
,mode=control -rtc base=utc -no-shutdown -device
piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
file=/etc/libvirt/qemu/android_4_0.img,if=none,id=drive-ide0-0-0,format=raw
-device ide-hd,bus=id
e.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -drive
if=none,id=drive-ide0-1-0,readonly=on,format=raw -device
ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -chardev
pty,id=chars
erial0 -device isa-serial,chardev=charserial0,id=serial0 -vnc
127.0.0.1:0 -vga cirrus -device intel-hda,id=sound0,bus=pci.0,addr=0x4
-device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device pc
i-assign,host=37:09.0,id=hostdev0,configfd=34,bus=pci.0,addr=0x3 -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
Domain id=2 is tainted: high-privileges
char device redirected to /dev/pts/10
Failed to assign irq for "hostdev0": Input/output error
Perhaps you are assigning a device that shares an IRQ with another device?
kvm: -device
pci-assign,host=37:09.0,id=hostdev0,configfd=34,bus=pci.0,addr=0x3:
Device 'pci-assign' could not be initialized
2012-09-08 21:27:36.845+0000: shutting down
=== 8< ================================================================
> Did this wifi card work before, with some previous version of
> qemu-kvm? I mean, is it a regression of an old bug?
I haven't try. I have try it on the host and everything is working fine!
That is why I would like to test it with a VM, with PCI Passthrough ...
> Please try running stuff without libvirt.
=== 8< ===========================================================
=> Here is the CLI, i have try ( copy from the qemu log):
sudo /usr/bin/kvm -S -M pc-1.1 -enable-kvm -m 1024 -smp
1,sockets=1,cores=1,threads=1 -name android_4_0 -uuid
65471d1a-613d-9046-94ce-2d57e234033e -nodefconfig -nodefaults -chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/android_4_0.monitor,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc
-no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
file=/etc/libvirt/qemu/android_4_0.img,if=none,id=drive-ide0-0-0,format=raw
-device
ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1
-drive if=none,id=drive-ide0-1-0,readonly=on,format=raw -device
ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -chardev
pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0
-vnc 127.0.0.1:0 -vga cirrus -device
intel-hda,id=sound0,bus=pci.0,addr=0x4 -device
hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device
pci-assign,host=37:09.0,id=hostdev0,configfd=34,bus=pci.0,addr=0x3
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
=> And stdout:
char device redirected to /dev/pts/9
get_real_device: read failed, errno = 9
assigned_dev_pci_read: pread failed, ret = -1 errno = 9
=== 8< =============================================================
=> The output of dmesg:
[ 1172.509550] ath5k 0000:37:09.0: PCI INT A disabled
[ 1172.509655] pci-stub 0000:37:09.0: claimed by stub
[ 1173.891518] pci-stub 0000:37:09.0: PCI INT A -> GSI 21 (level, low)
-> IRQ 21
[ 1173.925004] pci-stub 0000:37:09.0: restoring config space at offset
0x1 (was 0x2900400, writing 0x2900102)
[ 1174.275116] assign device 0:37:9.0
[ 1174.275356] deassign device 0:37:9.0
[ 1174.304978] pci-stub 0000:37:09.0: restoring config space at offset
0x1 (was 0x2900400, writing 0x2900102)
[ 1174.305034] pci-stub 0000:37:09.0: PCI INT A disabled
[ 1174.847781] ath5k 0000:37:09.0: PCI INT A -> GSI 21 (level, low) ->
IRQ 21
[ 1174.848000] ath5k 0000:37:09.0: registered as 'phy1'
[ 1175.433859] ath: EEPROM regdomain: 0x30
[ 1175.433862] ath: EEPROM indicates we should expect a direct regpair map
[ 1175.433867] ath: Country alpha2 being used: AM
[ 1175.433868] ath: Regpair used: 0x30
[ 1175.433969] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[ 1175.434632] ath5k phy1: Atheros AR2414 chip found (MAC: 0x79, PHY: 0x45)
=== 8< ==============================================================
I hope that's will help.
>
> Thanks,
>
> /mjt
Thanks for the reply.
Rgds,
Michaël
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