[Bug 94530] AMD R9 Nano reset problem
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Mar 14 09:55:40 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94530
Bug ID: 94530
Summary: AMD R9 Nano reset problem
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel at lists.freedesktop.org
Reporter: creakbeat at gmail.com
I am trying to passthrough R9 Nano to a VM, and facing some problems. After
Windows 7 has been installed, the latest AMD Crimson edition driver is
installed. At first time, the driver works properly. There appears to have the
problem when I power off the vm and restart it. The driver was not working
until I reboot the host.
Here is my system.
Manufacturer: Supermicro
Product Name: X10DAi
CPU: Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz
memory: 8GB
linux kernel: 3.19.0
$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.19.0 root=UUID=fc28306a-e168-406a-805d-cadf70de53ec
ro quiet splash intel-iommu=on vfio_iommu_type1.allow_unsafe_interrupts=1
vt.handoff=7
I tried to use qemu version 2.3.1, 2.4.1, and 2.5.1.
I also added the device id number into the function vfio_setup_resetfn(), but
the problem remains.
I start my virtual machine with the following code.
qemu-system-x86_64 -enable-kvm \
-M pc -m 4096 -cpu host \
-smp 4,sockets=1,cores=4,threads=1 \
-rtc base=localtime \
-vnc :0 \
-vga none \
-device lsi,id=scsi0,bus=pci.0 \
-device vfio-pci,host=03:00.0,x-vga=on \
-device vfio-pci,host=03:00.1 \
-hda $1 \
-monitor stdio
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