发明名称 |
LAZY MEMORY TRANSFORMATION IN VIRTUAL MACHINE LIVE MIGRATION |
摘要 |
Systems and methods for lazy memory transformation in virtual machine live migration. An example method may comprise: receiving, by a computer system, a plurality of transformed memory blocks, each transformed memory block comprising one or more memory pages mapped into an address space of a virtual machine being migrated to the computer system; storing, in a memory data structure, one or more mappings, each mapping comprising a guest virtual address of a memory page and an identifier of a transformed memory block containing the memory page; responsive to detecting an access to a memory page by the virtual machine, identifying, using the memory data structure, a transformed memory block containing the memory page being accessed; and storing in a memory mapped into the address space of the virtual machine the memory page produced by performing a reverse transformation of the transformed memory block. |
申请公布号 |
US2015212948(A1) |
申请公布日期 |
2015.07.30 |
申请号 |
US201414166533 |
申请日期 |
2014.01.28 |
申请人 |
Red Hat Israel, Ltd. |
发明人 |
Tsirkin Michael |
分类号 |
G06F12/10 |
主分类号 |
G06F12/10 |
代理机构 |
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代理人 |
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主权项 |
1. A method, comprising:
receiving, by a computer system, a plurality of transformed memory blocks, each transformed memory block comprising one or more memory pages mapped into an address space of a virtual machine being migrated to the computer system; storing, in a memory data structure, one or more mappings, each mapping comprising a guest virtual address of a memory page and an identifier of a transformed memory block containing the memory page; responsive to detecting an access to the memory page by the virtual machine, identifying, using the memory data structure, the transformed memory block containing the memory page being accessed; and storing in a memory mapped into the address space of the virtual machine the memory page produced by performing a reverse transformation of the transformed memory block. |
地址 |
Raanana IL |