8:29 p.m.
hi,
i have a small trouble with pci-passthrough.
i have a working configuration passing a tv card into the guest, all is fine and dandy.
as soon as i add my second identical card into the host i cant start the guest anymore,
whether i add the second card to the guest or not. error message is identical in both
cases.
message of virt-manager|virsh|libvirtd.log:
libvirtError: internal error: Unable to reset PCI device
0000:03:00.0: internal error: Active 0000:03:01.0 devices on bus with 0000:03:00.0, not
doing bus reset
the host is a plain kvm server, no services or apps whatsoever accessing the two devices.
the other guests (firewall and fileserver) do not use the cards either.
if i (soft) remove the 2nd card via
echo -n 1 > /sys/bus/pci/devices/0000\:03\:01.0/remove
i can
start the guest with the 1st card assigned.
thx for anyone looking into this.
wbr,tja..
PS:
host:
root@father:~# lspci
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor Integrated Graphics Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI
(rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family
MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 05)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2
(rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express
Root Port #1 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1
(rev 05)
00:1f.0 ISA bridge: Intel Corporation H87 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port
SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller
(rev 05)
02:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03)
03:00.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
03:01.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
root@father:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=13.10
DISTRIB_CODENAME=saucy
DISTRIB_DESCRIPTION="Ubuntu 13.10"
root@father:~# uname -a
Linux father 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64
x86_64 GNU/Linux
root@father:~# libvirtd --version
libvirtd (libvirt) 1.1.1
guest:
root@father:~# cat /etc/libvirt/qemu/tvBackend.xml
<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:
virsh edit tvBackend
or other application using the libvirt API.
-->
<domain type='kvm'>
<name>tvBackend</name>
<uuid>f647bb10-7f9a-f94c-33b9-3d99e8e753e0</uuid>
<memory unit='KiB'>1048576</memory>
<currentMemory unit='KiB'>1048576</currentMemory>
<vcpu placement='static'>2</vcpu>
<os>
<type arch='x86_64' machine='pc-i440fx-1.5'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm-spice</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw'/>
<source file='/kvm/tvBackend.img'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
<disk type='block' device='cdrom'>
<driver name='qemu' type='raw'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1'
target='0' unit='0'/>
</disk>
<controller type='usb' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01' function='0x1'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:10:26:ec'/>
<source bridge='brlan'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<video>
<model type='vga' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x0'/>
</video>
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x03' slot='0x00'
function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x06' function='0x0'/>
</hostdev>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x05' function='0x0'/>
</memballoon>
</devices>
</domain>
--
thomas jagoditsch - tjaSoft
softWareEntwicklung - netzWerkManagement