Dear All:
I am trying pass my host intel xHCI Controller to VM, this is my command:
/opt/qemu-dev/bin/qemu-system-x86_64 \
-usb \
--enable-kvm -M pc -m 2048 \
-boot menu=on -monitor stdio \
-debugcon file:/var/log/bios.log -global isa-debugcon.iobase=0x402 \
-device vfio-pci,host=00:14.0 \
-bios /root/bios.bin
I turn on the xHCI support of seabios.
Most time, It works fine, seabios can init usb mouse and keyboard.
Ocasionally, usb device not work! I found this error message in host dmesg:
[ 781.972254] DMAR: DRHD: handling fault status reg 2
[ 781.972259] DMAR: [DMA Read] Request device [00:14.0] fault addr ee000
[fault reason 06] PTE Read access is not set
After this error occurred，xHCI device not work at all，even VM reboot。If
anyone can give me some advice?
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