公开(公告)号：US20230229603A1

公开(公告)日：2023-07-20

申请号：US17565666

申请日：2021-12-30

Applicant: ADVANCED MICRO DEVICES, INC. ,  ATI TECHNOLOGIES ULC

Inventor： PHILIP NG ,  NIPPON RAVAL ,  DAVID A. KAPLAN ,  DONALD P. MATTHEWS, JR.

IPC: G06F13/10 ,  G06F12/084 ,  G06F12/1081

CPC classification number: G06F13/102 ,  G06F12/084 ,  G06F12/1081 ,  G06F2212/603

Abstract: Restricting peripheral device protocols in confidential compute architectures, the method including: receiving a first address translation request from a peripheral device supporting a first protocol, wherein the first protocol supports cache coherency between the peripheral device and a processor cache; determining that a confidential compute architecture is enabled; and providing, in response to the first address translation request, a response including an indication to the peripheral device to not use the first protocol.

公开(公告)号：US20140173290A1

公开(公告)日：2014-06-19

申请号：US13717329

申请日：2012-12-17

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： DAVID A. KAPLAN

IPC: G06F21/60

CPC classification number: G06F21/72 ,  G06F21/52

Abstract: A processor, a method and a computer-readable storage medium for tracking a return address are provided. The processor comprises a hardware register and logic configured to receive a call instruction. The logic is further configured to, based on the call instruction, encrypt a return address, store the encrypted return address onto a first address in a stack and store the first address on the hardware register.

Abstract translation: 提供了用于跟踪返回地址的处理器，方法和计算机可读存储介质。 处理器包括配置成接收呼叫指令的硬件寄存器和逻辑。 该逻辑被进一步配置为：基于该呼叫指令加密返回地址，将加密的返回地址存储在堆栈中的第一地址上，并将该第一地址存储在硬件寄存器上。