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    • 9. 发明授权
    • Integrity protection in data processing systems
    • 数据处理系统中的完整性保护
    • US08689007B2
    • 2014-04-01
    • US12054860
    • 2008-03-25
    • Matthias SchunterAxel TannerBernhard Jansen
    • Matthias SchunterAxel TannerBernhard Jansen
    • G06F21/00
    • G06F12/145G06F12/1491G06F21/64G06F21/79
    • A method for protecting the integrity of a set of memory pages to be accessed by an operating system of a data processing system, includes running the operating system in a virtual machine (VM) of the data processing system; verifying the integrity of the set of memory pages on loading of pages in the set to a memory of the data processing system for access by the operating system; in response to verification of the integrity, designating the set of memory pages as trusted pages and, in a page table to be used by the operating system during the access, marking non-trusted pages as paged; and in response to a subsequent page fault interrupt for a non-trusted page, remapping the set of pages to a region of the data processing system memory which is inaccessible to the virtual machine.
    • 一种用于保护由数据处理系统的操作系统访问的一组存储器页面的完整性的方法,包括在所述数据处理系统的虚拟机(VM)中运行所述操作系统; 验证所述集合中的页面的集合在所述数据处理系统的存储器中的操作系统的存取的完整性; 响应于完整性的验证,将存储器页面集合指定为可信页面,并且在操作系统在访问期间使用的页表中将不可信页面标记为分页; 并且响应于不可信页面的后续页面错误中断,将该组页面重新映射到数据处理系统存储器的该虚拟机不可访问的区域。
    • 10. 发明授权
    • Integrity protection in data processing systems
    • 数据处理系统中的完整性保护
    • US08276201B2
    • 2012-09-25
    • US12020612
    • 2008-01-28
    • Matthias SchunterAxel TannerBernhard Jansen
    • Matthias SchunterAxel TannerBernhard Jansen
    • G06F21/00
    • G06F12/145G06F12/1491G06F21/64G06F21/79
    • A method for protecting the integrity of a set of memory pages to be accessed by an operating system of a data processing system, includes running the operating system in a virtual machine (VM) of the data processing system; verifying the integrity of the set of memory pages on loading of pages in the set to a memory of the data processing system for access by the operating system; in response to verification of the integrity, designating the set of memory pages as trusted pages and, in a page table to be used by the operating system during the access, marking non-trusted pages as paged; and in response to a subsequent page fault interrupt for a non-trusted page, remapping the set of pages to a region of the data processing system memory which is inaccessible to the virtual machine.
    • 一种用于保护由数据处理系统的操作系统访问的一组存储器页面的完整性的方法,包括在所述数据处理系统的虚拟机(VM)中运行所述操作系统; 验证所述集合中的页面的集合在所述数据处理系统的存储器中的操作系统的存取的完整性; 响应于完整性的验证,将存储器页面集合指定为可信页面,并且在操作系统在访问期间使用的页表中将不可信页面标记为分页; 并且响应于不可信页面的后续页面错误中断,将该组页面重新映射到数据处理系统存储器的该虚拟机不可访问的区域。