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    • 3. 发明申请
    • DIRECT I/O DEVICE ACCESS BY A VIRTUAL MACHINE WITH MEMORY MANAGED USING MEMORY DISAGGREGATION
    • 使用存储器分解管理的虚拟机进行直接I / O设备访问
    • US20110271014A1
    • 2011-11-03
    • US12769897
    • 2010-04-29
    • Yoshio TurnerJose Renato SantosJichuan Chang
    • Yoshio TurnerJose Renato SantosJichuan Chang
    • G06F13/28G06F12/10G06F12/00
    • G06F12/1081
    • Illustrated is a system and method for identifying a memory page that is accessible via a common physical address, the common physical address simultaneously accessed by a hypervisor remapping the physical address to a machine address, and the physical address used as part of a DMA operation generated by an I/O device that is programmed by a VM. It also includes transmitting data associated with the memory page as part of a memory disaggregation regime, the memory disaggregation regime to include an allocation of an additional memory page, on a remote memory device, to which the data will be written. It further includes updating a P2M translation table associated with the hypervisor, and an IOMMU translation table associated with the I/O device, to reflect a mapping from the physical address to a machine address associated with the remote memory device and used to identify the additional memory page.
    • 示出了用于识别可通过公共物理地址访问的存储器页面的系统和方法,由管理程序同时访问的公共物理地址将物理地址重新映射到机器地址,以及用作生成的DMA操作的一部分使用的物理地址 通过由VM编程的I / O设备。 它还包括发送与存储器页相关联的数据作为存储器分解方案的一部分,该存储器分解方案包括在要写入数据的远程存储器设备上的附加存储器页的分配。 它还包括更新与管理程序相关联的P2M转换表和与I / O设备相关联的IOMMU转换表,以反映从物理地址到与远程存储器设备相关联的机器地址的映射,并用于标识附加 记忆页。
    • 5. 发明授权
    • Direct I/O device access by a virtual machine with memory managed using memory disaggregation
    • 通过使用内存分解管理的内存的虚拟机进行直接I / O设备访问
    • US08086765B2
    • 2011-12-27
    • US12769897
    • 2010-04-29
    • Yoshio TurnerJose Renato SantosJichuan Chang
    • Yoshio TurnerJose Renato SantosJichuan Chang
    • G06F3/00G06F13/28G06F5/00G06F13/12G06F13/38G06F13/36
    • G06F12/1081
    • Illustrated is a system and method for identifying a memory page that is accessible via a common physical address, the common physical address simultaneously accessed by a hypervisor remapping the physical address to a machine address, and the physical address used as part of a DMA operation generated by an I/O device that is programmed by a VM. It also includes transmitting data associated with the memory page as part of a memory disaggregation regime, the memory disaggregation regime to include an allocation of an additional memory page, on a remote memory device, to which the data will be written. It further includes updating a P2M translation table associated with the hypervisor, and an IOMMU translation table associated with the I/O device, to reflect a mapping from the physical address to a machine address associated with the remote memory device and used to identify the additional memory page.
    • 示出了用于识别可通过公共物理地址访问的存储器页面的系统和方法,由管理程序同时访问的公共物理地址将物理地址重新映射到机器地址,以及用作生成的DMA操作的一部分使用的物理地址 通过由VM编程的I / O设备。 它还包括发送与存储器页相关联的数据作为存储器分解方案的一部分,该存储器分解方案包括在要写入数据的远程存储器设备上的附加存储器页的分配。 它还包括更新与管理程序相关联的P2M转换表和与I / O设备相关联的IOMMU转换表,以反映从物理地址到与远程存储器设备相关联的机器地址的映射,并用于标识附加 记忆页。