Servicing a globally broadcast interrupt signal in a multi-threaded computer
US-9223729-B2 · Dec 29, 2015 · US
System and method for secure SMI memory services
US9047263B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9047263-B2 |
| Application number | US-201313749448-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2013 |
| Priority date | Jan 24, 2013 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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Abstract
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In accordance with the present disclosure, a system and method are herein disclosed for providing secure SMI memory services, including the protection of SMM memory from surreptitious attacks by, for example, rootkits. Information handling systems are susceptible to attacks, especially attacks on SMM memory. In one example, an SMI handler corresponding to the SMI Driver associated with an SMI interrupt performs validation of a password. An SSMS driver allocates memory for the SMI handler to use with the validation process and also performs a secure erase of allocated memory blocks upon completion of all secure SMI Memory Services. By controlling the validation and secure erase process through the use of the SMI handler and SSMS driver, information leakage can be prevented resulting in system data integrity.
First claim
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What is claimed is: 1. An information handling system for securing SMI memory services, comprising: a main memory; a system management mode (SMM) memory, wherein SMM memory is part of the main memory; a memory pool, wherein the memory pool is reserved memory within SMM memory and includes one or more blocks of memory; a system management interrupt (SMI) driver, wherein the SMI driver is initiated by triggering an SMI interrupt and wherein the one or more blocks of memory is…
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- What does patent US9047263B2 cover?
- In accordance with the present disclosure, a system and method are herein disclosed for providing secure SMI memory services, including the protection of SMM memory from surreptitious attacks by, for example, rootkits. Information handling systems are susceptible to attacks, especially attacks on SMM memory. In one example, an SMI handler corresponding to the SMI Driver associated with an SMI i…
- Who is the assignee on this patent?
- Wynn Allen, Dell Products Lp
- What technology area does this patent fall under?
- Primary CPC classification G06F13/24. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).