公开(公告)号：US20190042780A1

公开(公告)日：2019-02-07

申请号：US15941992

申请日：2018-03-30

Applicant: INTEL CORPORATION

Inventor： KIRK D. BRANNOCK ,  BARRY E. HUNTLEY

IPC: G06F21/62 ,  G06F21/64

Abstract: Various embodiments are generally directed to an apparatus, method and other techniques to detect an access request to access a computing resource while in a system management mode (SMM), determine a bit of a lock register is set to enable access to a bitmap associated with the computing resource, the bitmap to indicate an access policy for the computing resource, and determine whether the access request violate the access policy set in the bitmap. Embodiments may also include performing the access request if the access request does not violate the access policy, and causing a fault if the access request does violate the access policy.

公开(公告)号：US20170286318A1

公开(公告)日：2017-10-05

申请号：US15089235

申请日：2016-04-01

Applicant: INTEL CORPORATION

Inventor： KIRK D. BRANNOCK ,  BARRY E. HUNTLEY ,  VINCENT J. ZIMMER

IPC: G06F12/14 ,  G06F12/10 ,  G06F13/24

Abstract: Various embodiments are generally directed to an apparatus, method and other techniques for allocating a portion of the memory as system management random access memory (SMRAM) including a system management interrupt (SMI) handler for a system management mode (SMM), the SMI handler to handle SMIs for the SMM, generating a page table for the SMM, the page table comprising one or more mapped pages to map virtual addresses to physical addresses for the SMM, and setting one or more page table attributes for the page table to prevent a malicious code attack on the SMM.

公开(公告)号：US20190042117A1

公开(公告)日：2019-02-07

申请号：US16056490

申请日：2018-08-06

Applicant: INTEL CORPORATION

Inventor： KIRK D. BRANNOCK ,  BARRY E. HUNTLEY

IPC: G06F3/06 ,  G06F9/30 ,  G06F21/79 ,  G06F21/57 ,  G06F21/55

Abstract: Various embodiments are generally directed to an apparatus, method and other techniques for determining a region of the memory for which to store information, inserting the information into the region of the memory, and applying one or more characteristics to the region of the memory via an instruction set architecture (ISA) operation, the one or more characteristics comprising an immutable characteristic to prevent modification of the information in the region of the memory.

公开(公告)号：US20170285987A1

公开(公告)日：2017-10-05

申请号：US15087566

申请日：2016-03-31

Applicant: INTEL CORPORATION

Inventor： KIRK D. BRANNOCK ,  BARRY E. HUNTLEY

IPC: G06F3/06 ,  G06F21/55 ,  G06F9/30

CPC classification number: G06F3/0622 ,  G06F3/0637 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0673 ,  G06F9/3004 ,  G06F21/554 ,  G06F21/57 ,  G06F21/79 ,  G06F2221/034

Abstract: Various embodiments are generally directed to an apparatus, method and other techniques for determining a region of the memory for which to store information, inserting the information into the region of the memory, and applying one or more characteristics to the region of the memory via an instruction set architecture (ISA) operation, the one or more characteristics comprising an immutable characteristic to prevent modification of the information in the region of the memory.