Paolo Bonzini <pbonz...@redhat.com> 于2020年5月20日周三 下午5:34写道: > > On 20/05/20 10:55, Li Feng wrote: > >>> After computing xor, the result is 0b1000000000. > >>> The bit 9 is set. > >> Are you running KVM with a 32-bit kernel. > >> > > No, I'm running 64 bit. > > > > $ uname -a > > Linux 31_216 5.6.7-1.el7.centos.x86_64 #1 SMP Mon Apr 27 15:26:08 CST > > 2020 x86_64 x86_64 x86_64 GNU/Linux > > Can you do "rdmsr 0x48f" (as root)? On my machine for example I get > 1ffffff00036dfb. > $ rdmsr 0x48f 3fffff00036dfb
> Thanks, > > Paolo >