公开(公告)号：US10409507B1

公开(公告)日：2019-09-10

申请号：US15797489

申请日：2017-10-30

Applicant: Marvell International Ltd.

Inventor： Zhengqiang Huang ,  Shuangqing Yuan ,  Tao Song ,  James Jan ,  Xinyu Zang ,  Yun-Chang Chang ,  Albert Xi Cheng

IPC: G06F9/00 ,  G06F3/06 ,  G06F9/445 ,  G06F12/10 ,  G06F13/42

Abstract: The present disclosure describes methods and apparatuses for implementing virtual dynamic library loading in embedded systems. In some aspects, a determination is made that a feature is not available in firmware executed from a first memory. Based on information associated with the feature, a portion of a second memory is allocated for code of the feature. In some cases, the portion of the second memory is allocated from a data buffer or part of a shared memory. The code of the feature is loaded to the allocated portion of the second memory and address aliasing logic is configured enable execution of the feature from the second memory. By allocating and executing firmware features from the second memory, a size of the firmware executed from the first memory can be reduced to conserve memory space and other firmware features may be dynamically loaded and executed from the second memory.