Am Freitag, 16. Februar 2018, 00:28:30 CET schrieb David Woodhouse: > On Fri, 2018-02-16 at 00:12 +0100, Richard Weinberger wrote: > > [ 2.791518] Code: 8b 45 00 49 8b 7d 08 49 83 c5 18 31 d2 31 f6 ff > > d0 49 8b 45 00 48 85 c0 75 e9 eb b1 b9 49 00 00 00 b8 01 00 00 00 ba > > 00 00 00 00 <0f> 30 e9 68 fd ff ff 9c 58 0f 1f 44 00 00 48 89 c5 fa > > 66 0f 1f > > 23: b9 49 00 00 00 mov $0x49,%ecx > 28: b8 01 00 00 00 mov $0x1,%eax > 2d: ba 00 00 00 00 mov $0x0,%edx > 32: 0f 30 wrmsr > > The faulting instruction is the wrmsr itself. That shouldn't happen; if > the CPUID bit indicates that the MSR exists, then it should exist. > > The reverted patch did use the C __wrmsr() macro which contained a > fixup for this GP# but it was just a side-effect of the "cleanup" — it > wasn't intentional because that really shouldn't happen. That looks > like a qemu bug as first glance. Hmmm, yes seems so. Just gave latest qemu a try, works fine. ;-\ Thanks, //richard -- sigma star gmbh - Eduard-Bodem-Gasse 6 - 6020 Innsbruck - Austria ATU66964118 - FN 374287y
