QEMU 9.2 Released With VirtIO GPU Vulkan Support, AVX10 & Experimental Rust Support

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  • phoronix
    Administrator
    • Jan 2007
    • 67153

    QEMU 9.2 Released With VirtIO GPU Vulkan Support, AVX10 & Experimental Rust Support

    Phoronix: QEMU 9.2 Released With VirtIO GPU Vulkan Support, AVX10 & Experimental Rust Support

    QEMU 9.2 is out today for this processor emulator that plays an important role within the open-source Linux virtualization stack...

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite
  • Quackdoc
    Senior Member
    • Oct 2020
    • 4991

    #2
    vulkan is a game changer, literally. I was trying to debug it working on bliss, but ran out of time.

    Comment

    • joaquinvacas
      Junior Member
      • Nov 2022
      • 32

      #3
      Originally posted by Quackdoc View Post
      vulkan is a game changer, literally. I was trying to debug it working on bliss, but ran out of time.
      I am really interested on this, I also wonder if video transcoding could work now that Vulkan Video is a reality.

      Hope to see this on next Proxmox release!

      Comment

      • gustavoar
        Junior Member
        • Jun 2022
        • 26

        #4
        Please just give me a easy way to passthrough resizable BAR in VFIO

        Comment

        • Quackdoc
          Senior Member
          • Oct 2020
          • 4991

          #5
          Originally posted by gustavoar View Post
          Please just give me a easy way to passthrough resizable BAR in VFIO
          is that not solved yet? and here I thought it was able to do a static resize at vm start time.

          Comment

          • gustavoar
            Junior Member
            • Jun 2022
            • 26

            #6
            Originally posted by Quackdoc View Post

            is that not solved yet? and here I thought it was able to do a static resize at vm start time.
            Well, that works for some and not for others. I couldn't get it to work for me. Setting a static value is also kind of a workaround, would be nice to have proper support.

            Comment

            • akarypid
              Junior Member
              • Feb 2022
              • 26

              #7
              So with the VritIO vulkan-based driver, will we even be able to assign the same GPU to multiple VMs and have them share it? Or did I not understand this correctly?

              Comment

              • Quackdoc
                Senior Member
                • Oct 2020
                • 4991

                #8
                Originally posted by akarypid View Post
                So with the VritIO vulkan-based driver, will we even be able to assign the same GPU to multiple VMs and have them share it? Or did I not understand this correctly?
                kinda, the perf isn't 1:1 but it is really high, so it could in effect act like that. but in reality, all it is, is vulkan passthrough in a sense.

                Comment

                • pgoetz
                  Senior Member
                  • Sep 2014
                  • 121

                  #9
                  Originally posted by akarypid View Post
                  So with the VritIO vulkan-based driver, will we even be able to assign the same GPU to multiple VMs and have them share it? Or did I not understand this correctly?
                  I think this is a hardware/video driver issue? Dealing with sharing the GPU memory in a coherent fashion would likely require Nvidia MIG, or something similar. Currently these features are not available on consumer grade cards.

                  Comment

                  • zaps166
                    Junior Member
                    • Apr 2020
                    • 20

                    #10
                    Originally posted by gustavoar View Post
                    Please just give me a easy way to passthrough resizable BAR in VFIO
                    On AMD Ryzen platform I have to enable Above 4G decoding and disable RE-BAR in UEFI - in this configuration it works in Windows VMs when passing-through the GPU (CPU can see whole VRAM). Also the RE-BAR UEFI setting doesn't affect Linux host - it also work there regardless of this UEFI setting.

                    For me it looks like the "RE-BAR" UEFI setting affects only Windows (real, not VM).

                    Comment

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