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Description of problem:
Attach a host NIC device to guest (VF or PF), and then suspend guest to mem. Guest will resume automatically instead of waiting for a wakeup action.
(I did not use kvmclock and virtio devices as there's existing S3 bug related kvmclock and virtio Bug 803132 and Bug 803187.)
Version-Release number of selected component (if applicable):
Host:
kernel-2.6.32-251.el6.x86_64
qemu-kvm-0.12.1.2-2.246.el6.x86_64
seabios-0.6.1.2-12.enableS3S4.v1.el6.x86_64 (Amit provides in https://bugzilla.redhat.com/show_bug.cgi?id=761586#c7)
Guest:
kernel-2.6.32-251.el6.x86_64
How reproducible:
Always
Steps to Reproduce:
1. Unbind a physical nic device from host (VF or PF)
# echo "8086 10c9" > /sys/bus/pci/drivers/pci-stub/new_id
# echo 0000:03:00.1 > /sys/bus/pci/devices/0000\:03\:00.1/driver/unbind
# echo 0000:03:00.1 > /sys/bus/pci/drivers/pci-stub/bind
2.Boot guest with the physical NIC device attached or hot plug it after boot
/usr/libexec/qemu-kvm -M rhel6.3.0 -cpu Nehalem,-kvmclock -enable-kvm -m 4G -smp 2,sockets=1,cores=2,threads=1 -name rhel6.3 -uuid 4c84db67-faf8-4498-9829-19a3d6431d9d -rtc base=localtime,driftfix=slew -drive file=/home/rhel6.3-64-virtio-backup.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,werror=stop,rerror=stop,aio=native -device ide-drive,bus=ide.0,unit=1,drive=drive-virtio-disk0,id=virtio-disk0 -netdev tap,id=hostnet0,script=/etc/qemu-ifup -device e1000,netdev=hostnet0,id=net0,mac=00:1a:2a:42:10:66,bus=pci.0,addr=0x3 -usb -boot c -monitor stdio -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -qmp tcp:0:4445,server,nowait -vnc :10 -chardev socket,id=charserial0,path=/tmp/qzhang-isa,server,nowait -device isa-serial,chardev=charserial0,id=serial0 -qmp tcp:0:4444,server,nowait -device pci-assign,host=03:00.1,id=hostne1
3. Suspend guest to mem
#pm-suspend
4. Hotplug the physical device and suspend to mem again.
Actual results:
Step3: Guest will resume automatically instead of waiting for a wakeup action.
Step4: Guest waits for the wakeup after suspend.
Expected results:
Guest should always wait for the wakeup instead of wakeup automatically itself.
Additional info:
This is the desired + planned behavior in 6.3 because we didn't have the time to go through the full d3 state of the device. We're planning to enable it in the future. Moving to 6.4
Test on RHEL7 host with RHEL7 guest.
kernel-3.10.0-40.el7.x86_64
qemu-kvm-rhev-1.5.3-10.el7.x86_64
After S3, guest not resume automatically, but hit bug 1025213 with PF, hit bug 1025243 with VF.
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.