驱动中PAGED_CODE的作用

1

#define PAGED_CODE() PAGED_ASSERT(KeGetCurrentIrql() <= APC_LEVEL);

1

2

3

4

5

6

7

8

9

10

11

12

13

14

#define PASSIVE_LEVEL 0             // Passive release level

#define LOW_LEVEL 0                 // Lowest interrupt level

#define APC_LEVEL 1                 // APC interrupt level

#define DISPATCH_LEVEL 2            // Dispatcher level

#define CMCI_LEVEL 5                // CMCI handler level

#define PROFILE_LEVEL 27            // timer used for profiling.

#define CLOCK1_LEVEL 28             // Interval clock 1 level - Not used on x86

#define CLOCK2_LEVEL 28             // Interval clock 2 level

#define IPI_LEVEL 29                // Interprocessor interrupt level

#define POWER_LEVEL 30              // Power failure level

#define HIGH_LEVEL 31               // Highest interrupt level

#define CLOCK_LEVEL                 (CLOCK2_LEVEL)