https://bugzilla.kernel.org/show_bug.cgi?id=207099 Bug ID: 207099 Summary: VM fails to boot with invariant tsc enabled with kvm_amd Product: Virtualization Version: unspecified Kernel Version: 5.6.0 - 5.6.2 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: geggen54@xxxxxxxxx Regression: No After the 5.6.0 release my windows 10 VM running on AMD 3950x fails to boot when option "migratable=no,+invtsc" is enabled. The VM starts the boot process but after a few seconds I get a bluescreen with the error "Kernel security check failed". Neither the host or guest has any logs that I can find with any more details on the issue, or even that it happens at all. The issue is reproducible at least for me with a minimum set of options in QEMU with no enlightenments: "-M type=q35,accel=kvm,kernel_irqchip=on -cpu host, kvm=off, migratable=no,+invtsc, topoext -smp 24,sockets=1, cores=12, threads=2 -enable-kvm" I've tried changing the options kvm_amd.avic and nested to no avail. -- You are receiving this mail because: You are watching the assignee of the bug.
