公开(公告)号：US20240320002A1

公开(公告)日：2024-09-26

申请号：US18375381

申请日：2023-09-29

申请人： Intel Corporation

发明人： Jay LAWLOR ,  David SHEFFIELD ,  Xiang ZOU ,  Michael KINNEY ,  Charles HOLTHAUS ,  Thomas TOLL ,  Salessawi Ferede YITBAREK ,  Andreas KLEEN ,  Keshavan TIRUVALLUR ,  Sarathy JAYAKUMAR ,  Ruiyu NI

IPC分类号： G06F9/30 ,  G06F9/48 ,  G06F12/02 ,  G06F12/1009

CPC分类号： G06F9/30043 ,  G06F9/4812 ,  G06F12/0238 ,  G06F12/1009

摘要： An apparatus and method for a more efficient system management mode. For example, one embodiment of a processor comprises: a plurality of cores, at least a first core of the plurality of cores to perform operations to cause the plurality of cores to enter into a system management mode (SMM), the operations comprising: allocating a memory region for a system management RAM (SMRAM); writing an SMRAM state save location to a first register; and generating a page table in the SMRAM, including mapping a virtual address space a physical address space.