Not able to reboot Linux guest on Windows host
Host environment
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Operating system: Windows 10 Enterprise
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OS/kernel version: 22H2
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Architecture: x86_64
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QEMU flavor: qemu-system-x86_64
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QEMU version: 8.1
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QEMU command line:
qemu-system-x86_64.exe -m 4G -drive file=Disk.img,format=raw -accel whpx -smp 4
Emulated/Virtualized environment
- Operating system: Linux Mint
- OS/kernel version: 5.15.0-76-generic
- Architecture: x86_64
Description of problem
I am running Linux Mint on Windows, but when I try to reboot the machine, I get the following error:
qemu: WHPX: Unexpected VP exit code 4
I did some experiments changing the flags I use when I launch Qemu and I realized that if I set -smp 1 it does not fail. Furthermore, if I set the irqchip to off (kernel-irqchip=off) it does not fail either, but both options do not have good performance at all. I realized too that if I set 4 cores (-smp 4), the error might appear up to 4 times.
What seems to be failing then is the APIC emulation that Hyper-V provides. Does anyone know if:
- Am I missing a flag when launching Qemu?
- Is it there a patch to solve this?
Any leads for solving this problem would be highly appreciated.
Steps to reproduce
- Install MSYS
- Open MSYS and run pacman -S mingw-w64-x86_64-qemu
- Launch Qemu and reboot machine