<html><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:8pt"><div>i found this discussion of the same error: <div class="im" style="color: rgb(80, 0, 80); "><a href="http://www.linux-kvm.com/content/pci-passthrough-error" target="_blank" style="color: rgb(17, 85, 204); ">http://www.linux-kvm.com/content/pci-passthrough-error</a> > "I've solved my problem by deleting the '.save' file in > /var/lib/libvirt/qemu/save" </div>but i don't have that file: > sudo ls -al /var/lib/libvirt/qemu/save total 8 drwxr-xr-x 2 qemu qemu 4096 Sep 16 03:22 . drwxr-x--- 5 qemu qemu 4096 Sep 19 10:13 ..</div><div> </div><div>-erik</div><div> <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><div style="font-size: 8pt; font-family: 'Courier New', courier, monaco, monospace, sans-serif; "><div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "><hr size="1">From: erik flister <erik.flister@gmail.com> To: virt-tools-list@redhat.com Sent: Monday, September 19, 2011 9:19 PM Subject: [virt-tools-list] pci passthrough fail on fedora 15/kvm/qemu/virt-manager hosting win 7 (all 64 bit) AMD phenom II X6 1075T proc ASUS M4A87TD mobo BIOS ver 2001 (built 3/8/11) advanced/cpu config/secure virtual machine mode enabled in BIOS not sure if this turns on iommu, how do i verify? /proc/cpuinfo has hits for svm but not iommu or vmx. > dmesg | grep -i iommu [ 0.000000] Please enable the IOMMU option in the BIOS setup [ 1.515596] PCI-DMA: using GART IOMMU. [ 1.515599] PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture note my pci cards have windows drivers, but not linux drivers as far as i know. i have latest yummed kvm/qemu/virt-manager. i am using this virtualization method: <a href="http://www.techotopia.com/index.php/Running_Windows_on_Fedora_Using_KVM_Virtualization" target="_blank">http://www.techotopia.com/index.php/Running_Windows_on_Fedora_Using_KVM_Virtualization</a> i didn't know to disconnect the pci cards from the host before adding them to the guest until finding: <a href="http://docs.fedoraproject.org/en-US/Fedora/13/html/Virtualization_Guide/sect-Virtualization-PCding_a_PCI_device_to_a_host.html" target="_blank">http://docs.fedoraproject.org/en-US/Fedora/13/html/Virtualization_Guide/sect-Virtualization-PCding_a_PCI_device_to_a_host.html</a> > lspci 02:06.0 Unassigned class [ff00]: National Instruments PCI-6110 02:07.0 Serial controller: NetMos Technology PCI 9865 Multi-I/O Controller 02:07.1 Serial controller: NetMos Technology PCI 9865 Multi-I/O Controller 02:07.2 Parallel controller: NetMos Technology PCI 9865 Multi-I/O Controller > lspci -n 02:06.0 ff00: 1093:14e0 02:07.0 0700: 9710:9865 02:07.1 0700: 9710:9865 02:07.2 0701: 9710:9865 > virsh nodedev-list | grep pci pci_0000_02_06_0 pci_0000_02_07_0 pci_0000_02_07_1 pci_0000_02_07_2 > sudo virsh nodedev-dettach pci_0000_02_06_0 Device pci_0000_02_06_0 dettached but then, after adding it to the guest and trying to boot it, i get: Error starting domain: this function is not supported by the connection driver: Unable to reset PCI device 0000:02:06.0: this function is not supported by the connection driver: Active 0000:02:07.0 devices on bus with 0000:02:06.0, not doing bus reset Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/engine.py", line 959, in asyncfunc vm.startup() File "/usr/share/virt-manager/virtManager/domain.py", line 1128, in startup self._backend.create() File "/usr/lib64/python2.7/site-packages/libvirt.py", line 330, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) if i disable the other devices on bus 02 and add them to the guest: > sudo virsh nodedev-dettach pci_0000_02_07_0 Device pci_0000_02_07_0 dettached > sudo virsh nodedev-dettach pci_0000_02_07_1 Device pci_0000_02_07_1 dettached > sudo virsh nodedev-dettach pci_0000_02_07_2 Device pci_0000_02_07_2 dettached i then get this error on booting the guest (but with the same stack trace as above): Error starting domain: cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer and then networking fails on the host until i reboot, and fedora won't even shutdown all the way (i have to do a hard reboot by holding down the power button). any idea how i can fix this? why isn't detaching the device automatically done when it is added to the guest? even if i get this working, it seems i will have to detach stuff every time i reboot the host? finally, in this case, i actually do want to give everything on bus 02 to the guest, but what if i didn't? thanks for your help! -erik see also iommu/bios stuff here: <a href="http://docs.fedoraproject.org/en-US/Fedora/13/html-single/Virtualization_Guide/index.html" target="_blank">http://docs.fedoraproject.org/en-US/Fedora/13/html-single/Virtualization_Guide/index.html</a> _______________________________________________ virt-tools-list mailing list <a ymailto="mailto:virt-tools-list@redhat.com" href="mailto:virt-tools-list@redhat.com">virt-tools-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/virt-tools-list" target="_blank">https://www.redhat.com/mailman/listinfo/virt-tools-list</a> </div></div></blockquote></div></div></body></html>