发明名称 |
OPERATION OF A DUAL INSTRUCTION PIPE VIRUS CO-PROCESSOR |
摘要 |
Circuits and methods are provided for detecting, identifying and/or removing undesired content. According to one embodiment, a method for virus processing content objects is provided. A content object is stored within a system memory by a general purpose processor using a virtual address. Most recently used entries of a page directory and a page table of the system memory are cached within a translation lookaside buffer (TLB) of a virus co-processor. Instructions are read from a virus signature memory of the co-processor. Those of a first type are assigned to a first of multiple instruction pipes of the co-processor. The first instruction pipe executes an instruction including accessing a portion of the content object by performing direct virtual memory addressing of the system memory using a physical address derived based on the virtual address and the TLB and comparing it to a string associated with the instruction.
|
申请公布号 |
US2013152203(A1) |
申请公布日期 |
2013.06.13 |
申请号 |
US201313761723 |
申请日期 |
2013.02.07 |
申请人 |
FORTINET, INC.;FORTINET, INC. |
发明人 |
ZHOU XU;HUANG LIN;XIE MICHAEL |
分类号 |
G06F21/56 |
主分类号 |
G06F21/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|