会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • Infrastructure Support for Accelerated Processing Device Memory Paging Without Operating System Integration
    • 基础设施支持加速处理设备内存寻呼,无需操作系统集成
    • US20130159664A1
    • 2013-06-20
    • US13325282
    • 2011-12-14
    • Paul BLINZERLeendert Peter Van DoornGongxian Jeffrey ChengElene TerryThomas Roy WollerArshad Rahman
    • Paul BLINZERLeendert Peter Van DoornGongxian Jeffrey ChengElene TerryThomas Roy WollerArshad Rahman
    • G06F12/10
    • G06F12/1009G06F9/3004G06F9/3881G06F12/1081G06F2009/3883G06F2212/683
    • In a CPU of the combined CPU/APD architecture system, the CPU having multiple CPU cores, each core having a first machine specific register for receiving a physical page table/page directory base address, a second machine specific register for receiving a physical address pointing to a location controlled by an IOMMUv2 that is communicatively coupled to an APD, and microcode which when executed causes a write notification to be issued to the physical address contained in the second machine specific register; receiving in the first machine specific register of a CPU core, a physical page table/page directory base address, receiving in the second machine specific register of the CPU core, a physical address pointing to a location controlled by the IOMMUv2, determining that a control register of the CPU core has been updated, and responsive to the determination that the control register has been updated, executing microcode in the CPU core that causes a write notification to be issued to the physical address contained in the second machine specific register, wherein the physical address is able to receive writes that affect IOMMUv2 page table invalidations.
    • 在组合的CPU / APD架构系统的CPU中,CPU具有多个CPU内核,每个核具有用于接收物理页表/页目录基地址的第一机器特定寄存器,用于接收物理地址指向 到由通信地耦合到APD的IOMMUv2控制的位置,以及当被执行时导致向包含在第二机器特定寄存器中的物理地址发出写入通知的微代码; 在CPU核心的第一机器特定寄存器中接收物理页表/页目录基地址,在CPU核心的第二机器特定寄存器中接收指向由IOMMUv2控制的位置的物理地址,确定控制 已经更新了CPU核心的寄存器,并且响应于控制寄存器被更新的确定,执行CPU核心中的微代码,使得向第二机器特定寄存器中包含的物理地址发出写入通知,其中, 物理地址能够接收影响IOMMUv2页表无效的写入。
    • 9. 发明授权
    • Method and system for bootstrapping a trusted server having redundant trusted platform modules
    • 用于引导具有冗余可信平台模块的可信服务器的方法和系统
    • US08055912B2
    • 2011-11-08
    • US12621524
    • 2009-11-19
    • Steven A. BadeLinda Nancy BetzAndrew Gregory KegelDavid R. SaffordLeendert Peter Van Doorn
    • Steven A. BadeLinda Nancy BetzAndrew Gregory KegelDavid R. SaffordLeendert Peter Van Doorn
    • G06F11/30
    • G06F21/575
    • Multiple trusted platform modules within a data processing system are used in a redundant manner that provides a reliable mechanism for securely storing secret data at rest that is used to bootstrap a system trusted platform module. A hypervisor requests each trusted platform module to encrypt a copy of the secret data, thereby generating multiple versions of encrypted secret data values, which are then stored within a non-volatile memory within the trusted platform. At some later point in time, the encrypted secret data values are retrieved, decrypted by the trusted platform module that performed the previous encryption, and then compared to each other. If any of the decrypted values do not match a quorum of values from the comparison operation, then a corresponding trusted platform module for a non-matching decrypted value is designated as defective because it has not been able to correctly decrypt a value that it previously encrypted.
    • 以冗余的方式使用数据处理系统内的多个可信任的平台模块,其提供用于安全地存储用于引导系统可信平台模块的休息处的秘密数据的可靠机制。 管理程序请求每个可信平台模块加密秘密数据的副本,从而生成加密的秘密数据值的多个版本,然后存储在可信平台内的非易失性存储器中。 在稍后的时间点,加密的秘密数据值由执行先前加密的可信任平台模块进行解密,然后进行比较。 如果解密值中的任何一个与比较操作中的值的数量不匹配,则用于非匹配解密值的相应的可信平台模块被指定为有缺陷的,因为它不能正确解密之前加密的值 。