Hello, Some news for people who could be interested.
Vega 64 works (nearly) perfectly on vfio! 1 thing to keep in mind, the vega have a 'funny' pcie system which look like this: - bridge \- bridge |- GPU |- Sound card Using acs patch, forwarding only GPU on kernel 4.13, it works. I did not test sound card as i have a separate pcie one for the VM I did not test on native linux to switch between host and vm, but i have few hopes I did tested suspend mode of the vm (then i suspend the host). Both works perfectly at out of sleep. (with a little virsh domtime --sync so windows is not lost) 1 bug: - RESET! - But if you put the host to sleep, the card come back to life... Note something because of the tricksy pcie bridges: 02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1470 (rev c0) (prog-if 00 [Normal decode]) LnkSta: Speed 8GT/s, Width x4 03:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1471 (prog-if 00 [Normal decode]) LnkSta: Speed 8GT/s, Width x16 04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 XT [Radeon RX Vega 64] (rev c0) (prog-if 00 [VGA controller]) LnkSta: Speed 8GT/s, Width x16 04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device aaf8 LnkSta: Speed 8GT/s, Width x16 The card is in an x4 port. But it sees iself connected to a x16 one (windows thinks it is x16, gpu-z benchmark find it as x16). I will try to make a benchmark later between both slots of my motherboard. x8 vs x4 ( no x16, sorry, my nvme drive limits my available lanes to x8). -- Deldycke Quentin
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