Invention Grant
US08015388B1 Bypassing guest page table walk for shadow page table entries not present in guest page table
有权
绕过客人页面表进行访客页表中不存在的影子页表项
- Patent Title: Bypassing guest page table walk for shadow page table entries not present in guest page table
- Patent Title (中): 绕过客人页面表进行访客页表中不存在的影子页表项
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Application No.: US11499125Application Date: 2006-08-04
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Publication No.: US08015388B1Publication Date: 2011-09-06
- Inventor: Sahil Rihan , Pratap Subrahmanyam
- Applicant: Sahil Rihan , Pratap Subrahmanyam
- Applicant Address: US CA Palo Alto
- Assignee: VMware, Inc.
- Current Assignee: VMware, Inc.
- Current Assignee Address: US CA Palo Alto
- Main IPC: G06F12/00
- IPC: G06F12/00
Abstract:
A method and system are provided that does not perform a page walk on the guest page tables if the shadow page table entry corresponding to the guest virtual address for accessing the virtual memory indicates that a corresponding mapping from the guest virtual address to a guest physical address is not present in the guest page tables. A marker or indicator is stored in the shadow page table entries to indicate that a mapping corresponding to the guest virtual address of the shadow page table entry is not present in the guest page table.
Information query
