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    • 64. 发明授权
    • Flash memory protection scheme for secured shared BIOS implementation in personal computers with an embedded controller
    • 用于具有嵌入式控制器的个人计算机中的安全共享BIOS实现的闪存保护方案
    • US07890726B1
    • 2011-02-15
    • US11894977
    • 2007-08-22
    • Ohad FalikMichal Schramm
    • Ohad FalikMichal Schramm
    • G06F12/00
    • G06F13/1605G06F8/654G06F12/1425
    • An apparatus and method are disclosed. The apparatus allows dynamic setting of access permissions to contents of a shared memory in a memory device controlled by an embedded controller and allows updating and recovery of the contents. A computerized system comprising at least one Host linked to the memory device provides access paths to the shared memory, to the Host, and to the embedded controller. The memory device is partitioned into separate blocks, each of which is used to store different types of data. A location is designated in the shared memory for storing protection information that includes data related to access operations allowed by at least one access path to a part of the shared memory. Access, via an arbitration device, to separate parts of the shared memory is permitted by using an access control unit that enables/disables access to predetermined portions of the shared memory.
    • 公开了一种装置和方法。 该装置允许对由嵌入式控制器控制的存储器件中的共享存储器的内容的访问许可权的动态设置,并允许更新和恢复内容。 包括至少一个与存储器件连接的主机的计算机化系统提供到共享存储器,主机和嵌入式控制器的访问路径。 存储器件被分割成单独的块,每个块用于存储不同类型的数据。 在共享存储器中指定一个位置,用于存储保护信息,该保护信息包括与由共享存储器的一部分的至少一个访问路径允许的访问操作有关的数据。 通过使用访问控制单元允许/禁止访问共享存储器的预定部分,通过仲裁设备访问共享存储器的单独部分。
    • 67. 发明授权
    • Flash memory protection scheme for secured shared BIOS implementation in personal computers with an embedded controller
    • 用于具有嵌入式控制器的个人计算机中的安全共享BIOS实现的闪存保护方案
    • US07318129B1
    • 2008-01-08
    • US11301287
    • 2005-12-12
    • Ohad FalikMichal Schramm
    • Ohad FalikMichal Schramm
    • G06F12/14
    • G06F13/1605G06F8/654G06F12/1425
    • An apparatus and method are disclosed for protecting the contents of a shared memory in a memory device controlled by an embedded controller. The apparatus allows dynamic setting of access permissions to said contents and allows updating and recovery of the contents. A computerized system comprising at least one Host linked to the memory device provides access paths to the shared memory, to the Host, and to the embedded controller. An arbitration device for allocating access paths to the memory device is also provided. The memory device is partitioned into separate blocks, each of which is used to store different types of data. A location is designated in the shared memory for storing protection information that includes data related to access operations allowed by at least one access path to a part of the shared memory. Access, via the arbitration device, to separate parts of the shared memory is permitted by using an access control unit that enables/disables access to predetermined portions of the hared memory by at least one of the access paths.
    • 公开了一种用于保护由嵌入式控制器控制的存储器件中的共享存储器的内容的装置和方法。 该装置允许对所述内容的访问权限的动态设置,并且允许更新和恢复内容。 包括至少一个与存储器件连接的主机的计算机化系统提供到共享存储器,主机和嵌入式控制器的访问路径。 还提供了一种用于向存储设备分配访问路径的仲裁设备。 存储器件被分割成单独的块,每个块用于存储不同类型的数据。 在共享存储器中指定一个位置,用于存储保护信息,该保护信息包括与由共享存储器的一部分的至少一个访问路径允许的访问操作有关的数据。 通过使用访问控制单元来允许通过仲裁设备访问共享存储器的单独部分,该访问控制单元能够通过至少一个访问路径来启用/禁用访问已存储的存储器的预定部分。