[root@hsw-ex1 tools]# xl lis
Name                                        ID   Mem VCPUs	State	Time(s)
Domain-0                                     0  4096    32     r-----   33333.3
test_guest                                 633  4096     1     -b----      10.6
[root@hsw-ex1 tools]# pwd
/root/fengjuan/xen/tools/tests/mce-test/tools
[root@hsw-ex1 tools]# ./xen-mceinj -t 1
get gaddr of error inject is: 0x180020
Failed to inject MSR: Invalid argument

Putty output
(XEN) HV MSR INJECT (interpose) target 0 actual 0 MSR 0x17a <-- 0x5
(XEN) HV MSR INJECT (interpose) target 0 actual 0 MSR 0x421 <-- 0xbd00000000400f
(XEN) HV MSR INJECT (interpose) target 0 actual 0 MSR 0x423 <-- 0x86