https://bugs.freedesktop.org/show_bug.cgi?id=101946
--- Comment #16 from Robin beanow@oscp.info --- (In reply to Alex Deucher from comment #15)
Are you using a patched qemu that attempts to do radeon device specific gpu reset? If so, does removing that code help? Next, are you sure pci config access is allowed in your configuration? As I mentioned in comment 11, it's required for gpu reset to work.
I have installed the ubuntu supplied version.
$ kvm --version QEMU emulator version 2.8.0(Debian 1:2.8+dfsg-3ubuntu2.3) Copyright (c) 2003-2016 Fabrice Bellard and the QEMU Project developers
But KVM/Qemu is not being invoked. After a fresh boot on bare metal, these are the results I get in a root TTY.
I have seen mention of vfio-pci using device specific resets though. https://www.spinics.net/lists/kvm/msg116277.html So I will try to completely take it out of my test.
I'm not sure about pci config access, since I don't know how to verify this. Any instructions would be appreciated.