Abstract: Please amend the abstract of the specification as follows: Disclosed is a method for configuring an MMIOH base address of a server system. The method includes: when the server system is performing a power-on self-test, detecting a total capacity of all memories in the server system, and determining a minimum MMIOH base address of the server system according to an MMIO specification and the total capacity; if a target MMIOH base address range corresponding to a target PCIE device configured in the server system might be calculated according to a whitelist, and the minimum MMIOH base address is within the target MMIOH base address range, determining that the base address is the MMIOH base address of the server system, and storing the base address in a BIOS of the server system.

Abstract: A method, apparatus, and device for dynamically modifying a PCH PCIE root port where an onboard VGA is located, and a readable storage medium. The current item may be determined at a PEI phase by reading a GPIO interface, and a target PCH PCIE root port used by the item is further determined; then configuration information is acquired, and a target onboard VGA is found and initialized; because a video bridge configuration file defined in an SDL file is saved in a structure of a temporary file when code is compiled, in the method, the value of a target member of the structure is modified as the port number of the target PCH PCIE root port at a DXE phase, so that a video bridge is switched to the target PCH PCIE root port.

Abstract: Disclosed is a method for configuring an MMIOH base address of a server system. The method includes: when the server system is performing a power-on self-test, detecting a total capacity of all memories in the server system, and determining a minimum MMIOH base address of the server system according to an MMIO specification and the total capacity; if a target MMIOH base address range corresponding to a target PCIE device configured in the server system might be calculated according to a whitelist, and the minimum MMIOH base address is within the target MMIOH base address range, determining that the base address is the MMIOH base address of the server system, and storing the base address in a BIOS of the server system.

Abstract: A method, apparatus, and device for dynamically modifying a PCH PCIE root port where an onboard VGA is located, and a readable storage medium. The current item may be determined at a PEI phase by reading a GPIO interface, and a target PCH PCIE root port used by the item is further determined; then configuration information is acquired, and a target onboard VGA is found and initialized; because a video bridge configuration file defined in an SDL file is saved in a structure of a temporary file when code is compiled, in the method, the value of a target member of the structure is modified as the port number of the target PCH PCIE root port at a DXE phase, so that a video bridge is switched to the target PCH PCIE root port.