http://read.pudn.com/downloads211/doc/comm/994029/pcifw_r3_0_updated.pdf
PCI Header Structure is defined by below table
BIOS Structure: how to find MMCFG Table?
RSDPTR: BIOS signature
RSDPTR pointer, will point to RSDT: Route system description tale
*HPET: pointer, point to High Performance Exx Table
*SRAT:
*HCFG: