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Providing exception stack management using stack panic fault exceptions in processor-based devices

專利號
US11175926B2
公開日期
2021-11-16
申請人
Microsoft Technology Licensing, LLC（US WA Redmond）
發(fā)明人
Thomas Andrew Sartorius; Michael Scott McIlvaine; James Norris Dieffenderfer; Aaron S. Giles
IPC分類
G06F9/38; G06F9/30; G06F11/07
技術領域
exception,panic,stack,fault,handler,processor,store,device,in,registers
地域： WA WA Redmond

摘要

Providing exception stack management using stack panic fault exceptions in processor-based devices is disclosed. In this regard, a processor device defines a “stack panic fault exception” that may be raised upon execution of an exception handler store operation attempting to write state data into an exception stack, and provides a dedicated plurality of stack panic fault exception state registers in which stack panic fault exception state data may be saved. Upon detecting a first exception, the processor device transfers program control to an exception handler for the first exception. If a second exception occurs upon execution of a store operation in the exception handler, the processor device determines that the second exception should be handled as a stack panic fault exception, saves the stack panic fault exception state data in the stack panic fault exception state registers, and transfers program control to a stack panic fault exception handler.

說明書

Other devices can be connected to the system bus 506. As illustrated in FIG. 5, these devices can include the system memory 508, one or more input device(s) 516, one or more output device(s) 518, a modem 524, and one or more display controller(s) 520, as examples. The input device(s) 516 can include any type of input device, including, but not limited to, input keys, switches, voice processors, etc. The output device(s) 518 can include any type of output device, including, but not limited to, audio, video, other visual indicators, etc. The modem 524 can be any device configured to allow exchange of data to and from a network 526. The network 526 can be any type of network, including, but not limited to, a wired or wireless network, a private or public network, a local area network (LAN), a wireless local area network (WLAN), a wide area network (WAN), a BLUETOOTH? network, and the Internet. The modem 524 can be configured to support any type of communications protocol desired. The processor 502 may also be configured to access the display controller(s) 520 over the system bus 506 to control information sent to one or more display(s) 522. The display(s) 522 can include any type of display, including, but not limited to, a cathode ray tube (CRT), a liquid crystal display (LCD), a plasma display, etc.

權利要求

1
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