Method and apparatus for a guest to access a privileged register
    8.
    发明授权
    Method and apparatus for a guest to access a privileged register 有权
    客人访问特权登记册的方法和装置

    公开(公告)号:US08312452B2

    公开(公告)日:2012-11-13

    申请号:US11173312

    申请日:2005-06-30

    IPC分类号: G06F9/455 G06F9/46

    CPC分类号: G06F9/45533

    摘要: Embodiments of apparatuses and methods for guest processes to access registers are disclosed. In one embodiment, an apparatus includes an interface to a first register, shadow logic, evaluation logic, and exit logic. The shadow logic is to, in response to a guest attempt to write data to the first register, cause the data to be written to a second register. The evaluation logic is to determine, based on the value of the data, whether to transfer control to a host in response to the guest attempt. The exit logic is to transfer control to the host after the data is written to the second register if the evaluation logic determines to transfer control.

    摘要翻译: 公开了访问进程访问寄存器的装置和方法的实施例。 在一个实施例中,装置包括到第一寄存器,影子逻辑,评估逻辑和退出逻辑的接口。 影子逻辑是为了响应客人尝试向第一寄存器写入数据,使数据被写入第二寄存器。 评估逻辑是基于数据的值来确定是否将控制转移给主机以响应客人尝试。 如果评估逻辑确定传输控制,则退出逻辑是在将数据写入第二寄存器之后将控制传送到主机。