https://bugzilla.kernel.org/show_bug.cgi?id=53361 Summary: Wrong CPUID data returned by KVM Product: Virtualization Version: unspecified Kernel Version: 3.2.0-37 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm AssignedTo: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx ReportedBy: kaloqn.ganchev@xxxxxxxxx Regression: No When booted like this kvm -cpu core2duo,+xsave -enable-kvm -m 8192 -drive file=freebsd-9.1-qcow2.img -boot d -net nic -net user -nographic -vnc :0 -cdrom ./isos/FreeBSD-9.1-RELEASE-amd64-disc1.iso Freebsd crash immediately after the loader with error; CPU0 does not support X87 or SSE2 : 0 Without the xsave instruction the FreeBSD boot as expected. I had response from the FreeBSD developers that CPUID should return presence of the FPU extensions and since long mode capable CPU , X87 and SSE2 should be present according to Unix amd64 ABI . It seems this is not the case when xsave flag is set. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html