<html> <head> <meta content="text/html; charset=windows-1252" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <p>You can't really reset a card using SeaBIOS because it uses VGA arbitration, which has little to do with how an actual PCI passthrough would work IIRC. What makes you so sure that the issue comes from the gpu not resetting, is dmesg returning anything suspicious or is your qemu command completing successfully after you shutdown your VM? If you're not using libvirt, qemu is supposed to log error messages in the standard error stream instead, does anything abnormal come up when the VM shuts down?<br> </p> <p><br> </p> <p>- Nicolas<br> </p> <br> <div class="moz-cite-prefix">On 2016-07-04 15:46, Gerhard de Clercq wrote:<br> </div> <blockquote cite="mid:VI1PR0401MB1854AE523768F50D213E393CB8380@VI1PR0401MB1854.eurprd04.prod.outlook.com" type="cite"> <meta http-equiv="Content-Type" content="text/html; charset=windows-1252"> <style type="text/css" style="display:none;"></style> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <p>I was actually running though command line so no libvirt log and I didn't see anything in journalctl though I'm not entirely sure what to look for. I do indeed pass some other devices. I also saw in dmesg dat vfio-pci was warning about the ROM being invalid when I tried to start a VM the second or later time but passing a vgabios explicitly didn't make any difference. Here is my command:</p> <p><br> </p> <div>sudo qemu-system-x86_64 -enable-kvm -M q35 -m 4G -cpu core2duo,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff,kvm=off,hv_vendor_id=badapple -smp 4,sockets=1,cores=2,threads=2 -bios OVMF.fd -device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 -device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e -device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x1 -device piix3-usb-uhci,id=usb,bus=pci.2,addr=0x1 -device ahci,id=sata0,bus=pci.2,addr=0x5 -drive file=./Untitled.iso,if=none,id=drive-sata0-0-2,format=raw -device ide-hd,bus=ide.2,drive=drive-sata0-0-2,id=sata0-0-2,bootindex=1 -drive file=./nomachine.qcow2,if=none,media=disk,id=drive-sata0-0-0,format=qcow2 -device ide-hd,bus=sata0.0,drive=drive-sata0-0-0,id=sata0-0-0 -smbios type=2 -serial stdio -device vfio-pci,host=05:00.0,bus=pcie.0,multifunction=on -device vfio-pci,host=05:00.1,bus=pcie.0 -netdev tap,id=net0,ifname=tap0,script=no,downscript=no -device e1000-82545em,netdev=net0,id=net0,mac=52:54:00:c9:18:27 -usb -device usb-host,hostbus=3,hostaddr=3 -vga none<br> <br> Also, I was wondering, is it definitely impossible to reset a card when using vfio-vga and seabios?<br> </div> </div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> Nicolas Roy-Renaud <a class="moz-txt-link-rfc2396E" href="mailto:nicolas.roy-renaud.1@ens.etsmtl.ca"><nicolas.roy-renaud.1@ens.etsmtl.ca></a><br> <b>Sent:</b> 04 July 2016 07:18:12 PM<br> <b>To:</b> Gerhard de Clercq<br> <b>Cc:</b> vfio-users<br> <b>Subject:</b> Re: [vfio-users] No reset on GT730</font> <div> </div> </div> <div> <p>Are you passing through any other PCI devices, like USB controllers or soundcards? I'm guessing you've already checked your vm logs in /var/log/libvirt/qemu and the daemon logs in journalctl?<br> </p> <p><br> </p> <p>- Nicolas<br> </p> <br> <div class="moz-cite-prefix">On 2016-07-03 12:33, Gerhard de Clercq wrote:<br> </div> <blockquote cite="mid:VI1PR0401MB18542BB04F0D4FD51F9EBD41B8270@VI1PR0401MB1854.eurprd04.prod.outlook.com" type="cite"> <style type="text/css" style="display:none;"></style> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <p>I am trying to set up PCI passthrough of my Nvidia GT730 GPU on a fully up to date Fedora 24 system. I have managed to get it working but the problem is that it only works once after booting the host and to run again I need to reboot the host. I have determined that this is most likely caused by the fact that the GPU is not being reset. I bought this GPU because it has UEFI support after I could not get another one working with BIOS. It appeared as if though only AMD GPUs had a reset problem. Is this a known problem with this GPU and is there any way that I can try to force a reset?<br> </p> </div> <br> <fieldset class="mimeAttachmentHeader"></fieldset> <br> <pre wrap="">_______________________________________________ vfio-users mailing list <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> <a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://www.redhat.com/mailman/listinfo/vfio-users">https://www.redhat.com/mailman/listinfo/vfio-users</a> </pre> </blockquote> <br> </div> </blockquote> <br> </body> </html>