| Summary: | The interface info disappears from the dumpxml of the guest when manually unbind the vf pci device on host | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jingjing Shao <jishao> |
| Component: | libvirt | Assignee: | Libvirt Maintainers <libvirt-maint> |
| Status: | CLOSED NOTABUG | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.2 | CC: | dyuan, jdenemar, jishao, mzhan, rbalakri, shyu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-03-17 08:45:33 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
> 5.on the host
> [root@ibm-x3850x5-05 ~]# echo "0000:86:10.0" > /sys/bus/pci/devices/0000\:86\:10.0/driver/unbind
Just don't do that.
|
Description of problem: The interface info disappears from the dumpxml of the guest when manually unbind the vf pci device on host PKG OS-rhel7.2 libvirt-1.3.2-1.el7.x86_64 How reproducible: 100% Setup Steps to Reproduce: 1.[root@ibm-x3850x5-05 ~]# lspci | grep 82599 86:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01) 86:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01) 86:10.0 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01) 86:10.1 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01) 86:10.2 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01) 86:10.3 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01) 2.[root@ibm-x3850x5-05 ~]# virsh nodedev-dumpxml pci_0000_86_00_0 <device> <name>pci_0000_86_00_0</name> <path>/sys/devices/pci0000:80/0000:80:01.0/0000:86:00.0</path> <parent>pci_0000_80_01_0</parent> <driver> <name>ixgbe</name> </driver> <capability type='pci'> <domain>0</domain> <bus>134</bus> <slot>0</slot> <function>0</function> <product id='0x10fb'>82599ES 10-Gigabit SFI/SFP+ Network Connection</product> <vendor id='0x8086'>Intel Corporation</vendor> <capability type='virt_functions' maxCount='63'> <address domain='0x0000' bus='0x86' slot='0x10' function='0x0'/> <address domain='0x0000' bus='0x86' slot='0x10' function='0x2'/> <address domain='0x0000' bus='0x86' slot='0x10' function='0x4'/> <address domain='0x0000' bus='0x86' slot='0x10' function='0x6'/> </capability> <iommuGroup number='27'> <address domain='0x0000' bus='0x86' slot='0x00' function='0x0'/> </iommuGroup> <numa node='1'/> <pci-express> <link validity='cap' port='0' speed='5' width='8'/> <link validity='sta' speed='5' width='4'/> </pci-express> </capability> </device> 3.add the information to the guest r7 xml, then start r7 <interface type='hostdev' managed='yes'> <mac address='52:54:00:62:9d:13'/> <driver name='vfio'/> <source> <address type='pci' domain='0x0000' bus='0x86' slot='0x10' function='0x0'/> </source> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> [root@ibm-x3850x5-05 images]# virsh start r7 Domain r7 started [root@ibm-x3850x5-05 images]# virsh dumpxml r7 | grep hostdev -A8 -i <interface type='hostdev' managed='yes'> <mac address='52:54:00:62:9d:13'/> <driver name='vfio'/> <source> <address type='pci' domain='0x0000' bus='0x86' slot='0x10' function='0x0'/> </source> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> 4.get into the guest r7 [root@localhost ~]# ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet6 fe80::5054:ff:fe62:9d13 prefixlen 64 scopeid 0x20<link> ether 52:54:00:62:9d:13 txqueuelen 1000 (Ethernet) RX packets 14 bytes 840 (840.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 5 bytes 438 (438.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ..... [root@localhost ~]# ip l 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT qlen 1000 link/ether 52:54:00:62:9d:13 brd ff:ff:ff:ff:ff:ff 3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT link/ether 52:54:00:90:a7:02 brd ff:ff:ff:ff:ff:ff 4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN mode DEFAULT qlen 500 link/ether 52:54:00:90:a7:02 brd ff:ff:ff:ff:ff:ff 5.on the host [root@ibm-x3850x5-05 ~]# echo "0000:86:10.0" > /sys/bus/pci/devices/0000\:86\:10.0/driver/unbind 6.On the guest [root@localhost ~]# ifconfig lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ..... [root@localhost ~]# ip l 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT link/ether 52:54:00:90:a7:02 brd ff:ff:ff:ff:ff:ff 4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN mode DEFAULT qlen 500 link/ether 52:54:00:90:a7:02 brd ff:ff:ff:ff:ff:ff 7.On the host [root@ibm-x3850x5-05 ~]# virsh dumpxml r7 | grep hostdev -A8 -i [root@ibm-x3850x5-05 ~]# [root@ibm-x3850x5-05 ~]# [root@ibm-x3850x5-05 ~]# Expected results: Manually unbind the vf pci device, in step7 the interface info should not disappear from the dumpxml of the guest r7 Additional info: N/A