Source code of Windows XP (NT5)
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
title "Deferred Procedure Call Interrupt";++;; Copyright (c) 2000 Microsoft Corporation;; Module Name:;; dpcint.asm;; Abstract:;; This module implements the code necessary to process the Deferred; Procedure Call interrupt.;; Author:;; David N. Cutler (davec) 10-Nov-2000;; Environment:;; Kernel mode only.;;--
extern KiDispatchInterrupt:proc extern KiInitiateUserApc:proc extern __imp_HalEndSystemInterrupt:qword
include ksamd64.inc
subttl "Deferred Procedure Call Interrupt";++;; VOID; KiDpcInterrupt (; VOID; );; Routine Description:;; This routine is entered as the result of a software interrupt generated; at DISPATCH_LEVEL. Its function is to save the machine state and call; the dispatch interrupt routine.;; N.B. This is a directly connected interrupt that does not use an interrupt; object.;; Arguments:;; None.;; Return Value:;; None.;;--
NESTED_ENTRY KiDpcInterrupt, _TEXT$00
.pushframe ; mark machine frame
push_reg rbp ; push dummy vector push_reg rbp ; save nonvolatile register
GENERATE_INTERRUPT_FRAME ; generate interrupt frame
mov ecx, DISPATCH_LEVEL ; set new IRQL level
ENTER_INTERRUPT ; raise IRQL, do EOI, enable interrupts
call KiDispatchInterrupt ; process the dispatch interrupt
EXIT_INTERRUPT <NoEOI> ; lower IRQL and restore state
NESTED_END KiDpcInterrupt, _TEXT$00
end
|
