公开(公告)号：US10089275B2

公开(公告)日：2018-10-02

申请号：US15168574

申请日：2016-05-31

Applicant: QUALCOMM Incorporated

Inventor： Ofer Rosenberg ,  Amit Gil ,  James Lionel Panian ,  Piyush Patel ,  Shaul Yohai Yifrach

IPC: G06F13/42 ,  G06F13/40 ,  G06F13/16

Abstract: Communicating transaction-specific attributes in a peripheral component interconnect express (PCIe) system is disclosed. A PCIe system includes a host system and at least one PCIe endpoint. The PCIe endpoint is configured to determine one or more transaction-specific attributes that can improve efficiency and performance of a predefined host transaction. In this regard, in one aspect, the PCIe endpoint encodes the transaction-specific attributes in a transaction layer packet (TLP) prefix of at least one PCIe TLP and provides the PCIe TLP to the host system. In another aspect, a PCIe root complex (RC) in the host system is configured to detect and extract the transaction-specific attributes from the TLP prefix of the PCIe TLP received from the PCIe endpoint. By communicating the transaction-specific attributes in the TLP prefix of the PCIe TLP, it is possible to improve efficiency and performance of the PCIe system without violating the existing PCIe standard.

公开(公告)号：US20160371208A1

公开(公告)日：2016-12-22

申请号：US15184124

申请日：2016-06-16

Applicant: QUALCOMM Incorporated

Inventor： Ofer Rosenberg ,  Amit Gil ,  James Lionel Panian ,  Piyush Patel ,  Shaul Yohai Yifrach

IPC: G06F13/24 ,  G06F13/42

Abstract: Extended message signaled interrupts (MSI) data are disclosed. In one aspect, MSI bits are modified to include a system level identifier. In an exemplary aspect, an upper sixteen bits of the MSI message data are modified to be the system level identifier. By providing the system level identifier within the MSI message data, an interrupt controller can verify the interrupt source.

Abstract translation: 公开了扩展消息信号中断（MSI）数据。 在一个方面，MSI比特被修改为包括系统级标识符。 在示例性方面，MSI消息数据的高16位被修改为系统级标识符。 通过在MSI消息数据内提供系统级标识符，中断控制器可以验证中断源。

公开(公告)号：US09396011B2

公开(公告)日：2016-07-19

申请号：US13796442

申请日：2013-03-12

Applicant: QUALCOMM Incorporated

Inventor： Thomas M. Zeng ,  Azzedine Touzni ,  Philip T. Mueller, Jr. ,  Piyush Patel

IPC: G06F9/455 ,  G06F9/50 ,  G06F12/10 ,  G06F12/14 ,  G06F21/53

CPC classification number: G06F9/45558 ,  G06F9/45533 ,  G06F9/45545 ,  G06F9/5016 ,  G06F12/10 ,  G06F12/1009 ,  G06F12/1027 ,  G06F12/1491 ,  G06F21/44 ,  G06F21/53 ,  G06F2009/45583 ,  G06F2009/45587 ,  G06F2212/1052 ,  G06F2212/151 ,  G06F2212/152 ,  G06F2212/68 ,  Y02D10/13 ,  Y02D10/26 ,  Y02D10/28

Abstract: In the various aspects, virtualization techniques may be used to improve performance and reduce the amount of power consumed by selectively enabling a hypervisor operating on a computing device during sandbox sessions. In the various aspects, a high-level operating system may allocate memory such that its intermediate physical addresses are equal to the physical addresses. When the hypervisor is disabled, the hypervisor may suspend second stage translations from intermediate physical addresses to physical addresses. During a sandbox session, the hypervisor may be enabled and resume performing second stage translations.

Abstract translation: 在各个方面，可以使用虚拟化技术来提高性能并且通过在沙盒会话期间选择性地启用在计算设备上操作的管理程序来减少所消耗的功率量。 在各个方面，高级操作系统可以分配存储器，使得其中间物理地址等于物理地址。 当管理程序被禁用时，管理程序可以将中间物理地址的第二级转换挂起到物理地址。 在沙箱会话期间，管理程序可能被启用，并恢复执行第二阶段转换。