id = 2712
title = "Windows VM doesn't boot on QEMU KVM when hypervisor is disabled in Linux 6.12"
state = "closed"
created_at = "2024-12-07T20:54:57.655Z"
closed_at = "2024-12-14T08:36:17.730Z"
labels = ["accel: KVM", "guest: Windows"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2712"
host-os = "Manjaro Linux"
host-arch = "x86"
qemu-version = "9.1.2"
guest-os = "Windows 10, Windows 11 24H2"
guest-arch = "x86"
description = """Windows VM doesn't boot on QEMU KVM when hypervisor is disabled in Linux 6.12. QEMU uses 100% CPU core usage and nothing happens.

It boots properly in Linux 6.11.10. I don't know if it's a kernel bug or QEMU needs some changes to work with the new kernel correctly."""
reproduce = """1. Boot Windows 10 or 11 (can be installation ISO form official website) with KVM, but set "hypervisor=off" CPU parameter.
2. Wait.
3. Nothing happens - doesn't boot."""
additional = """Nothing is displayed in console."""