On 10/05/2016 09:28 AM, Dawid Osuchowski wrote:> I've ran dd if=NV287MH.2K0 of=strip bs=1 skip=1536, put the ROM file in > /usr/share/qemu, run restorecon on it and it started working! I'm so > thankful for both of you Alex and Thomas, i've been trying to get it to > work for at least 4-5 days and you've helped me in just one day. While > we are still here, do you have any recommendations on optimizing the VM > so it runs smoothly almost as a native OS and how should i interact with > the VM? I've seen an article on > https://rokups.github.io/blog/#!pages/kvm-hid.md that made a software > KVM switch, would that be good?
https://www.redhat.com/archives/vfio-users/2016-September/msg00072.html this post explains ways of reducing latency for gaming but be aware that reducing latency also tends to reduce performance. I use synergy to share mouse and keyboard. Apparently they've switched to a pay model but you can still get betas for free: https://symless.com/nightly Using the "input-linux" driver for recent versions of qemu is also popular but you won't get shared clipboard with that. https://www.kraxel.org/blog/2016/04/linux-evdev-input-support-in-qemu-2-6/ The virtual soundcards in qemu doesn't work so well. I get the audio out over hdmi. I then loop an audio cable from the audio out on my monitor to the line-in on my regular soundcard. That way the sound from the host and guest are mixed together and I can control the volume independently. There are some issues with hdmi audio which is explained here: https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF#Slowed_down_audio_pumped_through_HDMI_on_the_video_card >>> On 10/05/2016 03:46 AM, Alex Williamson wrote: >>>> If you want to send me your ROM file, I'll compare to mine and see >>>> whether it works with my card (not sure whether it should or not given >>>> different vendors). Thanks, >>> This conversation from irc explains where that strip.rom file comes from. >>> >>> <tulphoon> Hello. I've extracted ROM file from my card and i would like to >>> apply UEFI "patch" to it. How should i do it? I don't want to use nvflash >>> directly on the card. >>> <tulphoon> My card is MSI GTX 660, and i've got the "patch" file from this >>> thread https://forum-en.msi.com/index.php?topic=274331.0 >>> <tulphoon> Basically i want to merge the two files (if that's even >>> possible) and have single EFI compatible file in the end. >>> <tholin> I see no mentioning of "patch" in that thread. It looks like >>> just a .rom file. Use that rom instead of the one you dumped. >>> <tulphoon> That one doesn't qualify as rom tho. >>> <tulphoon> at least, EfiRom -d throws out error: 3001 >>> <tholin> looks like you are right, it's some metadata format >>> <tulphoon> but i don't want to nvflash it tho. >>> <tulphoon> Unless that's the last solution >>> <tholin> the real vbios is embedded in it. It starts at byte offset 1536 >>> and I suppose it's 128K big like most vbios. >>> <tulphoon> probably the nvflash thingy is able to strip the thign and make >>> it work. >>> <tulphoon> the thing* >>> <tholin> try running this on it "dd if=NV287MH.2K0 of=strip bs=1 >>> skip=1536 count=131072" >>> <tulphoon> okay, gimme a sec. >>> <tholin> the vbios rom-parser can parse the resultant file >>> <tulphoon> holy fuck >>> <tulphoon> you are a genius sir. >>> <tulphoon> wait. >>> <tulphoon> Okay, the rom is working and has EFI support. >>> <tulphoon> but i'm still getting Code 43 on my Win 10 VM. >>> <tulphoon> I'll investigate further tomorrow though. Huge thank you for >>> help tholin :) >>> <tholin> np >>> >>> Perhaps the real rom is larger than 128K? That seems unlikely. >>> At least you can recreate that stripping and get the same rom. >> Yes, it is more than 128K, mine and the one in that rar archive. That >> could very well be the problem. Dawid, repeat what you did above, but >> remove the count=131072 part of the dd command, which will just let it >> run to the end of the file. Thanks Thomas, that could very well be the >> key. >> >> Alex I'm not such a genius after all. Glad you found an answer. _______________________________________________ vfio-users mailing list [email protected] https://www.redhat.com/mailman/listinfo/vfio-users
