Hello,
I'm trying to do a PCI passthrough using OVMF and libvirt. The general problem is that if I use libvirt+virtmanager, if I create a UEFI VM, booting it just gives me a solid (not blinking) cursor on a black screen, and virt-manager shows CPU being maxed, so I'm assuming it hung. If I do the same thing with qemu directly, it works fine. I'm able to boot into my specified devices and work with it like any other VM.
The guest I'm trying to create
OS: Windows 10 x64
RAM: 8 GB
Storage: LVM partition
PCI device: nvidia 980 ti
My host is running Ubuntu 15.10 x64
Here are the following versions of my VM stack
OVMF I pulled from https://www.kraxel.org/repos/jenkins/edk2/
directories related to OVMF
libvirt XML config (It says win8.1, I was just lazy and didn't change it. It's running win10.
And this is the working qemu command that works as expected
Does anybody know why I can't get libvirt to work? I'd like to get that working so I can do things like trigger guest shutdowns / suspends when the host wants to shutdown.
I'm trying to do a PCI passthrough using OVMF and libvirt. The general problem is that if I use libvirt+virtmanager, if I create a UEFI VM, booting it just gives me a solid (not blinking) cursor on a black screen, and virt-manager shows CPU being maxed, so I'm assuming it hung. If I do the same thing with qemu directly, it works fine. I'm able to boot into my specified devices and work with it like any other VM.
The guest I'm trying to create
OS: Windows 10 x64
RAM: 8 GB
Storage: LVM partition
PCI device: nvidia 980 ti
My host is running Ubuntu 15.10 x64
Here are the following versions of my VM stack
Code:
libvirt-bin
Version: 1.2.16-2ubuntu11
virt-manager
Version: 1:1.3.2-0ubuntu1~ppa0
qemu-kvm
Version: 1:2.3+dfsg-5ubuntu9.2directories related to OVMF
Code:
anthony@Galactica:~$ ls -l /usr/share/edk2.git/ovmf-x64/total 15244
-rw-r--r-- 1 root root 1966080 Mar 4 14:14 OVMF_CODE-need-smm.fd
-rw-r--r-- 1 root root 1966080 Mar 4 14:04 OVMF_CODE-pure-efi.fd
-rw-r--r-- 1 root root 1966080 Mar 4 14:08 OVMF_CODE-with-csm.fd
-rw-r--r-- 1 root root 2097152 Mar 4 14:14 OVMF-need-smm.fd
-rw-r--r-- 1 root root 2097152 Mar 4 14:04 OVMF-pure-efi.fd
-rw-r--r-- 1 root root 131072 Mar 4 14:14 OVMF_VARS-need-smm.fd
-rw-r--r-- 1 root root 131072 Mar 6 14:03 OVMF_VARS-pure-efi.fd
-rw-r--r-- 1 root root 131072 Mar 4 14:08 OVMF_VARS-with-csm.fd
-rw-r--r-- 1 root root 2097152 Mar 4 14:08 OVMF-with-csm.fd
-rw-r--r-- 1 root root 3024896 Mar 4 14:14 UefiShell.iso
root@Galactica:~# ls -l /var/lib/libvirt/qemu/nvram/
total 128
-rw------- 1 root root 131072 Mar 6 15:00 win8.1_VARS.fdlibvirt XML config (It says win8.1, I was just lazy and didn't change it. It's running win10.
Code:
<domain type='kvm'> <name>win8.1</name>
<uuid>f8686458-2a8e-4f6e-9a68-608d7be35618</uuid>
<memory unit='KiB'>1048576</memory>
<currentMemory unit='KiB'>1048576</currentMemory>
<memoryBacking>
<hugepages/>
<nosharepages/>
</memoryBacking>
<vcpu placement='static' current='1'>4</vcpu>
<os>
<type arch='x86_64' machine='pc-i440fx-wily'>hvm</type>
<loader readonly='yes' type='pflash'>/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
<nvram template='/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd'>/var/lib/libvirt/qemu/nvram/win8.1_VARS.fd</nvram>
</os>
<features>
<acpi/>
<apic/>
<hyperv>
<relaxed state='off'/>
<vapic state='off'/>
<spinlocks state='off'/>
</hyperv>
<kvm>
<hidden state='on'/>
</kvm>
<vmport state='off'/>
</features>
<cpu mode='host-model'>
<model fallback='allow'/>
<topology sockets='1' cores='2' threads='2'/>
</cpu>
<clock offset='localtime'>
<timer name='rtc' tickpolicy='catchup'/>
<timer name='pit' tickpolicy='delay'/>
<timer name='hpet' present='no'/>
<timer name='hypervclock' present='no'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='no'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none' io='native'/>
<source dev='/dev/mapper/system-winroot'/>
<target dev='vda' bus='virtio'/>
<boot order='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='virtio-serial' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</controller>
<interface type='network'>
<mac address='52:54:00:43:27:2d'/>
<source network='default'/>
<model type='rtl8139'/>
<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>
<channel type='spicevmc'>
<target type='virtio' name='com.redhat.spice.0'/>
<address type='virtio-serial' controller='0' bus='0' port='1'/>
</channel>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='spice' autoport='yes'>
<image compression='off'/>
</graphics>
<sound model='ich6'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</sound>
<video>
<model type='qxl' ram='65536' vram='65536' vgamem='16384' 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='0x01' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='usb' managed='yes'>
<source>
<vendor id='0x1532'/>
<product id='0x0043'/>
</source>
</hostdev>
<redirdev bus='usb' type='spicevmc'>
</redirdev>
<redirdev bus='usb' type='spicevmc'>
</redirdev>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
</memballoon>
</devices>
</domain>And this is the working qemu command that works as expected
Code:
#!/bin/bash
cp /usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd /tmp/my_vars.fd
qemu-system-x86_64 \
-enable-kvm \
-mem-path /dev/hugepages \
-m 8192 \
-cpu host,kvm=off \
-vga none \
-device vfio-pci,host=01:00.0,multifunction=on \
-device vfio-pci,host=01:00.1 \
-drive if=pflash,format=raw,readonly,file=/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd \
-drive if=pflash,format=raw,file=/tmp/my_vars.fd \
-device virtio-scsi-pci,id=scsi \
-drive file=/dev/mapper/system-winroot,id=disk,format=raw,if=none -device scsi-hd,drive=disk \
-usb -usbdevice host:2516:0004Does anybody know why I can't get libvirt to work? I'd like to get that working so I can do things like trigger guest shutdowns / suspends when the host wants to shutdown.