Il 14/06/2013 09:36, Zhanghaoyu (A) ha scritto: > __kvm_set_xcr function does the CPL check when set xcr. __kvm_set_xcr is called in two flows, > one is invoked by guest, call stack shown as below, > handle_xsetbv(or xsetbv_interception) > kvm_set_xcr > __kvm_set_xcr > the other one is invoked by host(QEMU), call stack shown as below, > kvm_arch_vcpu_ioctl > kvm_vcpu_ioctl_x86_set_xcrs > __kvm_set_xcr > > The former does need the CPL check, but the latter does not. > > Signed-off-by: Zhang Haoyu <haoyu.zhang@xxxxxxxxxx> What does this patch fix? I suppose it is some kind of migration problem since you mentioned QEMU, but I'd rather be sure. I can fix the commit message myself when applying. Thanks, Paolo -- 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
