35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
#pragma once
|
|
// ke_irql.h - software IRQL skeleton
|
|
//
|
|
// This is intentionally small for the first IRQL/APC bring-up step. It does
|
|
// not yet program interrupt hardware or replace the spinlock interrupt-disable
|
|
// path. It gives the kernel one authoritative execution-level state plus
|
|
// assertions so blocking code can reject illegal callers early.
|
|
|
|
#include <stdint.h>
|
|
|
|
typedef uint8_t KIRQL;
|
|
|
|
#define PASSIVE_LEVEL ((KIRQL)0)
|
|
#define APC_LEVEL ((KIRQL)1)
|
|
#define DISPATCH_LEVEL ((KIRQL)2)
|
|
#define DIRQL_BASE ((KIRQL)16)
|
|
#define HIGH_LEVEL ((KIRQL)31)
|
|
|
|
__declspec(dllexport) KIRQL KeGetCurrentIrql(void);
|
|
|
|
// Raise to newIrql and return the previous level. Raising to a lower level is
|
|
// a kernel bug and will panic in checked/debug-style builds.
|
|
__declspec(dllexport) KIRQL KeRaiseIrql(KIRQL newIrql);
|
|
|
|
// Restore a previously returned level. Lowering to a higher level is a kernel
|
|
// bug and will panic.
|
|
__declspec(dllexport) void KeLowerIrql(KIRQL oldIrql);
|
|
|
|
__declspec(dllexport) void KeAssertIrql(KIRQL expected);
|
|
__declspec(dllexport) void KeAssertIrqlAtOrBelow(KIRQL maxIrql);
|
|
__declspec(dllexport) int KeCanWait(void);
|
|
|
|
// Internal/debug helper used by diagnostics and panic messages.
|
|
__declspec(dllexport) const char* KeIrqlName(KIRQL irql);
|