hypervisor cannot boot on skylake i5-6500

[zhijianli88]

ACRN Hypervisor
calibrate_tsc, tsc_khz=3200000
[13645222us][cpu=0][sev=2][seq=5]:HV version 0.2-unstable-2018-08-20 15:30:10-16a8174-dirty DBG (daily tag:acrn-2018w33.3-140000p) build by cl-sos, start time 13640359us
[13662099us][cpu=0][sev=2][seq=6]:API version 1.0
[13667214us][cpu=0][sev=2][seq=7]:Detect processor: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
[13676373us][cpu=0][sev=2][seq=8]:hardware support HV
[13681911us][cpu=0][sev=1][seq=9]:SECURITY WARNING!!!!!!
[13687751us][cpu=0][sev=1][seq=10]:Please apply the latest CPU uCode patch!
Assertion failed in file boot/dmar_parse.c,line 91 : fatal error
Host Stack: CPU_ID = 0
addr(0x6e04dd08)        0x0000000000000004  0x0000000000000000  0x000000006e0012b0  0x000000006e0013a1
addr(0x6e04dd28)        0x000000000000010e  0x0000000000000000  0x0000000000000000  0x0000000000000004
addr(0x6e04dd48)        0x0000000000000000  0x00000000b8943b98  0x0000000400000000  0x000000006e0013da
addr(0x6e04dd68)        0x0000000000048000  0x0000000000007000  0x0000000000000000  0x00000000000000f0
addr(0x6e04dd88)        0x000000000000010e  0xa37a69d9067c2fc2  0x0000000000007000  0x0000000000000004
addr(0x6e04dda8)        0x0000000000000000  0x00000000b8943b98  0x0000000400000000  0x00000000b7b0af2e
addr(0x6e04ddc8)        0x0000000000000000  0x000000006e0017f9  0x00000000b8943b98  0x000000006e006ff1
addr(0x6e04dde8)        0x00000000b7b0af2e  0x0000000000000004  0x00000000b6b8a2d0  0x00000000b8943b98
addr(0x6e04de08)        0x0000000000100000  0x000000006e003418  0x0000000000000000  0x000000006e002e2f
addr(0x6e04de28)        0x00000000696e746c  0x0000000000000000  0x0000000000000000  0x353737383633315b
addr(0x6e04de48)        0x7570635b5d737531  0x3d7665735b5d303d  0x313d7165735b5d31  0x7361656c503a5d30
addr(0x6e04de68)        0x20796c7070612065  0x6574616c20656874  0x7520555043207473  0x7461702065646f43
addr(0x6e04de88)        0x0000000000216863  0x0000000000000000  0x0000000000000000  0x0000000000000000
addr(0x6e04dea8)        0x0000000000000000  0x0000000000000000  0x0000000000000000  0x0000000000000000
addr(0x6e04dec8)        0x0000000000000000  0x0000000000000000  0x0000000000000000  0x0000000000000000
addr(0x6e04dee8)        0x0000000000000000  0x0000000000000000  0x0000000000000000  0x0000000000000000

Host Call Trace:

[zhijianli88]

hardware platform: lenovo M6600-N000

[zhijianli88]

my fault, after enabling VT-d，this issue was gone