id = 2061
title = "Regression: QEMU 8.2.0 VFIO GPU guests cannot reboot due to improper reset"
state = "closed"
created_at = "2023-12-29T07:11:52.383Z"
closed_at = "2024-01-20T15:06:55.154Z"
labels = ["Stable::to backport", "VFIO", "workflow::Patch available"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2061"
host-os = "Arch Linux (up to date)"
host-arch = "x86_64"
qemu-version = "8.2.0"
guest-os = "Windows 11 Enterprise 23H2"
guest-arch = "x86_64"
description = """Prior to QEMU 8.2.0 (i.e. 8.1.4), rebooting the guest with VFIO GPU passed through would result in a proper reboot.
After updating to QEMU 8.2.0, rebooting the guest results in a black screen due to improper reset behaviour.
I was able to narrow this down to commit #3d779ab. Compiling and running with commit #0bddd88 results in the correct behaviour.
That is, the GPU properly resets on guest reboot and boots successfully to Windows."""
reproduce = """1. Update to QEMU 8.2.0
2. Boot Windows 11 23H2
3. Reboot
4. Notice a black screen"""
additional = """"""