发明授权
US08583875B1 Efficient readable ballooning of guest memory by backing balloon pages with a shared page
有权
通过使用共享页面支持气球页面来高效地读取客户机内存空间
- 专利标题： Efficient readable ballooning of guest memory by backing balloon pages with a shared page
- 专利标题（中）： 通过使用共享页面支持气球页面来高效地读取客户机内存空间
-
申请号： US12835303申请日： 2010-07-13
-
公开(公告)号： US08583875B1公开(公告)日： 2013-11-12
- 发明人: Alexander Thomas Garthwaite , Yury Baskakov
- 申请人： Alexander Thomas Garthwaite , Yury Baskakov
- 申请人地址： US CA Palo Alto
- 专利权人： VMware, Inc.
- 当前专利权人： VMware, Inc.
- 当前专利权人地址： US CA Palo Alto
- 主分类号： G06F12/00
- IPC分类号： G06F12/00
摘要：
Methods, systems, and computer programs for managing physical memory in a host of a virtual infrastructure are presented. One method includes an operation for detecting that a guest physical page (GPP) of a virtual machine (VM) is a balloon page. The GPP, previously mapped to a machine page (MP), is re-mapped to a shared page of memory in order to free the MP, such that a read to the GPP causes a read to the shared page of memory. Further, the method includes an operation for detecting a write to the shared page of memory after the re-mapping of the GPP to the shared page, where the write to the shared page is caused by a write to the GPP. After detecting the write, all balloon pages created by the VM are reset in order to reset the balloon application in the VM.
信息查询
