[Bug 1121007] New: Single GPU passthrough fails if using the Virtio SCSI controller and/or copying the CPU configuration
http://bugzilla.suse.com/show_bug.cgi?id=1121007 Bug ID: 1121007 Summary: Single GPU passthrough fails if using the Virtio SCSI controller and/or copying the CPU configuration Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: KVM Assignee: kvm-bugs@forge.provo.novell.com Reporter: gcanhete152@gmail.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 793816 --> http://bugzilla.suse.com/attachment.cgi?id=793816&action=edit Output from dmesg after attempting to start the VM Libvirt becomes unresponsive if you attempt to passthrough the system's only GPU to a virtual machine that uses the SCSI controller and/or the cpu configuration is set to "copy host". Processor: Ryzen Threadripper 1950X Motherboard: Asus Prime X399-A Graphics Card: Radeon RX 580 I'm trying to set GPU passthrough with a Windows 10 guest using the single graphics card on my system, as in this tutorial (https://github.com/joeknock90/Single-GPU-Passthrough). Since I'm storing the qcow2 file on my boot SSD, I tried to enable TRIM support on the guest to improve overral performance. While the VM boots fine with the standard virtio controller, enabling SCSI causes libvirtd to hang and the VM fails to boot, as verified by running top via ssh. The same thing happens if, in virt-manager I set the CPU modele to copy configuration of host. Setting it to Nehalem works fine. -- You are receiving this mail because: You are on the CC list for the bug.
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--- Comment #1 from Gabriel Canhete
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--- Comment #2 from Gabriel Canhete
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--- Comment #3 from Gabriel Canhete
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--- Comment #4 from Gabriel Canhete
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Liang Yan
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--- Comment #5 from Liang Yan
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--- Comment #6 from Gabriel Canhete
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--- Comment #7 from Gabriel Canhete
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Liang Yan
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Liang Yan
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