Bug 1029275
| Summary: | Guest only find one 82576 VF(function 0) while use multifunction | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Xu Han <xuhan> | ||||
| Component: | qemu-kvm | Assignee: | Alex Williamson <alex.williamson> | ||||
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 7.0 | CC: | acathrow, alex.williamson, chayang, hhuang, juzhang, knoel, michen, virt-maint, xfu | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | qemu-kvm-1.5.3-20.el7 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2014-06-13 11:34:09 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: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 822744 [details]
host dmesg
found '[ 2723.891847] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:10.0 domain=0x0019 address=0x000000014f507000 flags=0x0020]' such message in host dmesg.
Fix included in qemu-kvm-1.5.3-20.el7 Verify this bug with component:
qemu-kvm-1.5.3-21.el7.x86_64
------
Steps:
1. boot guest with 82576 VFs use multifunction.
# /usr/libexec/qemu-kvm ... \
-device vfio-pci,host=01:10.0,id=vf0,multifunction=on,addr=0x07.0 \
-device vfio-pci,host=01:10.1,id=vf1,multifunction=on,addr=0x07.1 \
-device vfio-pci,host=01:10.2,id=vf2,multifunction=on,addr=0x07.2
2. check VFs via hmp.
(qemu) info pci
(qemu) info qtree
3. check VFs device on guest.
# lspci | grep 07
------
Results:
After step2,
(qemu) info pci
...
Bus 0, device 7, function 0:
Ethernet controller: PCI device 8086:10ca
BAR0: 64 bit memory at 0xfc010000 [0xfc013fff].
BAR3: 64 bit memory at 0xfc014000 [0xfc017fff].
id "vf0"
Bus 0, device 7, function 1:
Ethernet controller: PCI device 8086:10ca
BAR0: 64 bit memory at 0xfc018000 [0xfc01bfff].
BAR3: 64 bit memory at 0xfc01c000 [0xfc01ffff].
id "vf1"
Bus 0, device 7, function 2:
Ethernet controller: PCI device 8086:10ca
BAR0: 64 bit memory at 0xfc020000 [0xfc023fff].
BAR3: 64 bit memory at 0xfc024000 [0xfc027fff].
id "vf2"
...
(qemu) info qtree
...
dev: i440FX-pcihost, id ""
irq 0
bus: pci.0
type PCI
dev: vfio-pci, id "vf2"
host = 0000:01:10.2
x-intx-mmap-timeout-ms = 1100
x-vga = off
bootindex = -1
addr = 07.2
romfile = <null>
rombar = 1
multifunction = on
command_serr_enable = on
class Ethernet controller, addr 00:07.2, pci id 8086:10ca (sub 8086:a03c)
bar 0: mem at 0xfc020000 [0xfc023fff]
bar 3: mem at 0xfc024000 [0xfc027fff]
dev: vfio-pci, id "vf1"
host = 0000:01:10.1
x-intx-mmap-timeout-ms = 1100
x-vga = off
bootindex = -1
addr = 07.1
romfile = <null>
rombar = 1
multifunction = on
command_serr_enable = on
class Ethernet controller, addr 00:07.1, pci id 8086:10ca (sub 8086:a03c)
bar 0: mem at 0xfc018000 [0xfc01bfff]
bar 3: mem at 0xfc01c000 [0xfc01ffff]
dev: vfio-pci, id "vf0"
host = 0000:01:10.0
x-intx-mmap-timeout-ms = 1100
x-vga = off
bootindex = -1
addr = 07.0
romfile = <null>
rombar = 1
multifunction = on
command_serr_enable = on
class Ethernet controller, addr 00:07.0, pci id 8086:10ca (sub 8086:a03c)
bar 0: mem at 0xfc010000 [0xfc013fff]
bar 3: mem at 0xfc014000 [0xfc017fff]
...
After step3, could found all VFs in guest.
# lspci | grep 07
00:07.0 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01)
00:07.1 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01)
00:07.2 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01)
------
Base on these test results above, this bug has been fixed.
This request was resolved in Red Hat Enterprise Linux 7.0. Contact your manager or support representative in case you have further questions about the request. |
Description of problem: Guest only find one 82576 VF(function 0) while use multifunction. 1. Test with 82576 PF, not hit this issue. 2. Test with 82599 VF, hit this issue as well. Version-Release number of selected component (if applicable): qemu-kvm-rhev-1.5.3-18.el7.x86_64 kernel-3.10.0-48.el7.x86_64 How reproducible: always Steps to Reproduce: 1. boot guest with 82576 VFs use multifunction. /usr/libexec/qemu-kvm -nodefaults -M pc -m 4G -cpu Opteron_G3 -smp 4,cores=2,threads=2,sockets=1 -boot menu=on -monitor stdio -rtc base=localtime,clock=host,driftfix=slew -qmp tcp:0:5555,server,nowait -vga qxl -drive file=/home/rhel7base.qcow2,format=qcow2,id=guest-img,if=none,werror=stop,rerror=stop -device virtio-blk-pci,scsi=off,drive=guest-img,id=os-disk -spice disable-ticketing,port=5931 -device virtio-balloon,id=balloon -netdev tap,id=hostnet0,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -device e1000,netdev=hostnet0,id=net0,mac=00:1a:4a:42:0b:00 \ -device vfio-pci,host=01:10.0,id=vf0,multifunction=on,addr=0x07.0 \ -device vfio-pci,host=01:10.1,id=vf1,multifunction=on,addr=0x07.1 \ -device vfio-pci,host=01:10.2,id=vf2,multifunction=on,addr=0x07.2 2. check VFs via hmp. (qemu) info pci (qemu) info qtree 3. check VFs device on guest. # lspci | grep 07 Actual results: after step2, could found all VFs. (qemu) info pci ... Bus 0, device 7, function 0: Ethernet controller: PCI device 8086:10ca BAR0: 64 bit memory at 0xfc050000 [0xfc053fff]. BAR3: 64 bit memory at 0xfc054000 [0xfc057fff]. id "vf0" Bus 0, device 7, function 1: Ethernet controller: PCI device 8086:10ca BAR0: 64 bit memory at 0xffffffffffffffff [0x00003ffe]. BAR3: 64 bit memory at 0xffffffffffffffff [0x00003ffe]. id "vf1" Bus 0, device 7, function 2: Ethernet controller: PCI device 8086:10ca BAR0: 64 bit memory at 0xffffffffffffffff [0x00003ffe]. BAR3: 64 bit memory at 0xffffffffffffffff [0x00003ffe]. id "vf2" ... (qemu) info qtree bus: main-system-bus type System dev: kvm-ioapic, id "" gpio-in 24 gsi_base = 0 irq 0 mmio 00000000fec00000/0000000000001000 dev: i440FX-pcihost, id "" irq 0 bus: pci.0 type PCI dev: vfio-pci, id "vf2" host = 0000:01:10.2 x-intx-mmap-timeout-ms = 1100 x-vga = off bootindex = -1 addr = 07.2 romfile = <null> rombar = 1 multifunction = on command_serr_enable = on class Ethernet controller, addr 00:07.2, pci id 8086:10ca (sub 8086:a03c) bar 0: mem at 0xffffffffffffffff [0x3ffe] bar 3: mem at 0xffffffffffffffff [0x3ffe] dev: vfio-pci, id "vf1" host = 0000:01:10.1 x-intx-mmap-timeout-ms = 1100 x-vga = off bootindex = -1 addr = 07.1 romfile = <null> rombar = 1 multifunction = on command_serr_enable = on class Ethernet controller, addr 00:07.1, pci id 8086:10ca (sub 8086:a03c) bar 0: mem at 0xffffffffffffffff [0x3ffe] bar 3: mem at 0xffffffffffffffff [0x3ffe] dev: vfio-pci, id "vf0" host = 0000:01:10.0 x-intx-mmap-timeout-ms = 1100 x-vga = off bootindex = -1 addr = 07.0 romfile = <null> rombar = 1 multifunction = on command_serr_enable = on class Ethernet controller, addr 00:07.0, pci id 8086:10ca (sub 8086:a03c) bar 0: mem at 0xfc050000 [0xfc053fff] bar 3: mem at 0xfc054000 [0xfc057fff] ... after step3, could only found one VF. # lspci | grep 07 00:07.0 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) Expected results: can find all VFs on guest. Additional info: