On Thu, 15 Dec 2016 17:30:32 +0000 Zir Blazer <zir_bla...@hotmail.com> wrote:
> You WILL see it on consumer grade GPUs on a massive scale, as any Intel > platform with a Broadwell or Skylake Processor with IGP will have access to > Intel GVT-g. While the raw power of the Intel IGPs is a fraction of a bigger > Radeon or GeForce, they are rather on par with features, and as long that you > don't need a bigger GPU performance (Modern games, high resolutions or high > quality), it will be more than enough for the purpose of sharing one GPU > among multiple VMs. > On Desktop systems, the absolutely most simple setup will be to use the Intel > IGP for host and other 3 VMs with vGPU in one Monitor, and VGA Passthrough of > a big Video Card for your Windows gaming VM in another Monitor. > > XenGT also supported Haswell IGPs, but when the Intel devs started working in > KVMGT, they only worked on Broadwell+ and left Haswell out. I was > disappointed by that since I have a Haswell Processor. Maybe someone will > eventually want to port XenGT Haswell support to KVMGT, as most of the code > should be done... > > > What I don't know is how much work upstreaming KVMGT is left. They already > mainlined the guest Linux vGPU Drivers many Kernels ago, and also did it with > Windows, too. With this, they are getting in the host Linux Drivers for GPU > Virtualization support. I THINK they had already added the required code to > QEMU, too, but I'm not 100% sure about that since I can't find a clear > changelog, they are just talking about IGD Passthrough, which is not the same. > Regardless, chances are that in around 3-4 months with Linux Kernel 4.10 and > next QEMU, iGVT-g is going for the masses. I have been waiting for this > moment since I first heared about XenGT THREE YEARS AGO... One of the advantages of the vfio mediated device interface is that API exposed to the user, and thus QEMU, is identical to a directly assigned device. Therefore AFAIK, there are no QEMU changes necessary for KVMGT. This guide still indicates support for 4th generation (aka Haswell), but I don't know how accurate it is: https://github.com/01org/gvt-linux/wiki/GVTg_Setup_Guide Thanks, Alex _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
