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    OPERATING SYSTEM VIRTUAL MEMORY MANAGEMENT FOR HARDWARE TRANSACTIONAL MEMORY
    3.
    发明申请
    OPERATING SYSTEM VIRTUAL MEMORY MANAGEMENT FOR HARDWARE TRANSACTIONAL MEMORY 有权
    操作系统硬件事务存储器虚拟内存管理

    公开(公告)号：US20100332721A1

    公开(公告)日：2010-12-30

    申请号：US12493161

    申请日：2009-06-26

    申请人： Koichi Yamada ,  Gad Sheaffer ,  Ali-Reza Adl-Tabatabai ,  Landy Wang ,  Martin Taillefer ,  Arun Kishan ,  David Callahan ,  Jan Gray ,  Vadim Bassin

    发明人： Koichi Yamada ,  Gad Sheaffer ,  Ali-Reza Adl-Tabatabai ,  Landy Wang ,  Martin Taillefer ,  Arun Kishan ,  David Callahan ,  Jan Gray ,  Vadim Bassin

    IPC分类号： G06F12/08

    CPC分类号： G06F12/1045 ,  G06F12/0815

    摘要： Operating system virtual memory management for hardware transactional memory. A method may be performed in a computing environment where an application running on a first hardware thread has been in a hardware transaction, with transactional memory hardware state in cache entries correlated by memory hardware when data is read from or written to data cache entries. The data cache entries are correlated to physical addresses in a first physical page mapped from a first virtual page in a virtual memory page table. The method includes an operating system deciding to unmap the first virtual page. As a result, the operating system removes the mapping of the first virtual page to the first physical page from the virtual memory page table. As a result, the operating system performs an action to discard transactional memory hardware state for at least the first physical page. Embodiments may further suspend hardware transactions in kernel mode. Embodiments may further perform soft page fault handling without aborting a hardware transaction, resuming the hardware transaction upon return to user mode, and even successfully committing the hardware transaction.

    摘要翻译： 硬件事务内存的操作系统虚拟内存管理。 可以在运行在第一硬件线程上的应用程序已经处于硬件事务中的计算环境中执行一种方法，当数据从数据高速缓存条目读取或写入数据高速缓存条目时，高速缓存条目中的事务性存储器硬件状态由存储器硬件相关联。 数据高速缓存条目与从虚拟存储器页表中的第一虚拟页面映射的第一物理页面中的物理地址相关联。 该方法包括决定取消映射第一虚拟页面的操作系统。 结果，操作系统从虚拟存储器页表移除第一虚拟页面到第一物理页面的映射。 结果，操作系统执行至少第一物理页丢弃事务存储器硬件状态的动作。 实施例可以进一步挂起内核模式下的硬件事务。 实施例可以进一步执行软页错误处理，而不中止硬件事务，在返回到用户模式时恢复硬件事务，甚至成功地提交硬件事务。

    OPERATING SYSTEM VIRTUAL MEMORY MANAGEMENT FOR HARDWARE TRANSACTIONAL MEMORY
    6.
    发明申请
    OPERATING SYSTEM VIRTUAL MEMORY MANAGEMENT FOR HARDWARE TRANSACTIONAL MEMORY 有权
    操作系统硬件事务存储器虚拟内存管理

    公开(公告)号：US20120284485A1

    公开(公告)日：2012-11-08

    申请号：US13554558

    申请日：2012-07-20

    申请人： Koichi Yamada ,  Gad Sheaffer ,  Ali-Reza Adl-Tabatabai ,  Landy Wang ,  Martin Taillefer ,  Arun Kishan ,  David Callahan ,  Jan Gray ,  Vadim Bassin

    发明人： Koichi Yamada ,  Gad Sheaffer ,  Ali-Reza Adl-Tabatabai ,  Landy Wang ,  Martin Taillefer ,  Arun Kishan ,  David Callahan ,  Jan Gray ,  Vadim Bassin

    IPC分类号： G06F12/08

    CPC分类号： G06F12/1045 ,  G06F12/0815

    摘要： Operating system virtual memory management for hardware transactional memory. A system includes an operating system deciding to unmap a first virtual page. As a result, the operating system removes the mapping of the first virtual page to the first physical page from the virtual memory page table. As a result, the operating system performs an action to discard transactional memory hardware state for at least the first physical page. Embodiments may further suspend hardware transactions in kernel mode. Embodiments may further perform soft page fault handling without aborting a hardware transaction, resuming the hardware transaction upon return to user mode, and even successfully committing the hardware transaction.

    摘要翻译： 硬件事务内存的操作系统虚拟内存管理。 系统包括决定取消映射第一虚拟页面的操作系统。 结果，操作系统从虚拟存储器页表移除第一虚拟页面到第一物理页面的映射。 结果，操作系统执行至少第一物理页丢弃事务存储器硬件状态的动作。 实施例可以进一步挂起内核模式下的硬件事务。 实施例可以进一步执行软页错误处理，而不中止硬件事务，在返回到用户模式时恢复硬件事务，甚至成功地提交硬件事务。

    Operating system virtual memory management for hardware transactional memory
    7.
    发明授权
    Operating system virtual memory management for hardware transactional memory 有权
    硬件事务内存的操作系统虚拟内存管理

    公开(公告)号：US08250331B2

    公开(公告)日：2012-08-21

    申请号：US12493161

    申请日：2009-06-26

    申请人： Koichi Yamada ,  Gad Sheaffer ,  Ali-Reza Adl-Tabatabai ,  Landy Wang ,  Martin Taillefer ,  Arun Kishan ,  David Callahan ,  Jan Gray ,  Vadim Bassin

    发明人： Koichi Yamada ,  Gad Sheaffer ,  Ali-Reza Adl-Tabatabai ,  Landy Wang ,  Martin Taillefer ,  Arun Kishan ,  David Callahan ,  Jan Gray ,  Vadim Bassin

    IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F9/26 ,  G06F9/34 ,  G06F9/455 ,  G06F9/46

    CPC分类号： G06F12/1045 ,  G06F12/0815

    摘要： Operating system virtual memory management for hardware transactional memory. A method may be performed in a computing environment where an application running on a first hardware thread has been in a hardware transaction, with transactional memory hardware state in cache entries correlated by memory hardware when data is read from or written to data cache entries. The data cache entries are correlated to physical addresses in a first physical page mapped from a first virtual page in a virtual memory page table. The method includes an operating system deciding to unmap the first virtual page. As a result, the operating system removes the mapping of the first virtual page to the first physical page from the virtual memory page table. As a result, the operating system performs an action to discard transactional memory hardware state for at least the first physical page. Embodiments may further suspend hardware transactions in kernel mode. Embodiments may further perform soft page fault handling without aborting a hardware transaction, resuming the hardware transaction upon return to user mode, and even successfully committing the hardware transaction.

    摘要翻译： 硬件事务内存的操作系统虚拟内存管理。 可以在运行在第一硬件线程上的应用程序已经处于硬件事务中的计算环境中执行一种方法，当数据从数据高速缓存条目读取或写入数据高速缓存条目时，高速缓存条目中的事务性存储器硬件状态由存储器硬件相关联。 数据高速缓存条目与从虚拟存储器页表中的第一虚拟页面映射的第一物理页面中的物理地址相关联。 该方法包括决定取消映射第一虚拟页面的操作系统。 结果，操作系统从虚拟存储器页表移除第一虚拟页面到第一物理页面的映射。 结果，操作系统执行至少第一物理页丢弃事务存储器硬件状态的动作。 实施例可以进一步挂起内核模式下的硬件事务。 实施例可以进一步执行软页错误处理，而不中止硬件事务，在返回到用户模式时恢复硬件事务，甚至成功地提交硬件事务。

    Systems, Methods, and Apparatuses for Last Branch Record Support
    9.
    发明申请
    Systems, Methods, and Apparatuses for Last Branch Record Support 审中-公开
    用于最后分支记录支持的系统，方法和设备

    公开(公告)号：US20160378498A1

    公开(公告)日：2016-12-29

    申请号：US14752891

    申请日：2015-06-27

    申请人： Paul Caprioli ,  Koichi Yamada ,  Jason M. Agron ,  Jiwei Lu

    发明人： Paul Caprioli ,  Koichi Yamada ,  Jason M. Agron ,  Jiwei Lu

    IPC分类号： G06F9/38 ,  G06F9/30

    CPC分类号： G06F9/3804 ,  G06F9/30101

    摘要： Systems, methods, and apparatuses for last branch record support are described. In an embodiment, a hardware processor core comprises a hardware execution unit to execute a branch instruction, at least two last branch record (LBR) registers to store a source and destination information of a branch taken during program execution, wherein an entry in a LBR register to include an encoding of the branch, a write bit array to indicate which LBR register is architecturally correct, an architectural bit array to indicate when an LBR register has been written, and a plurality of top of stack pointers to indicate which LBR register in a LBR register stack is to be written.

    摘要翻译： 描述用于最后一个分支记录支持的系统，方法和装置。 在一个实施例中，硬件处理器核心包括执行分支指令的硬件执行单元，至少两个最后一个分支记录（LBR）寄存器，用于存储在程序执行期间取得的分支的源和目的地信息，其中LBR中的条目 注册以包括分支的编码，用于指示哪个LBR寄存器在架构上正确的写入位阵列，用于指示何时写入LBR寄存器的架构位阵列以及多个堆栈指针顶部以指示哪个LBR寄存器在 要写入一个LBR寄存器堆栈。