doublefault_32.c File Reference

#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/init_task.h>
#include <linux/fs.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/desc.h>

Go to the source code of this file.

Macros
#define	DOUBLEFAULT_STACKSIZE   (1024)
#define	STACK_START   (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
#define	ptr_ok(x)   ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)

Variables
struct tss_struct doublefault_tss	__cacheline_aligned

Macro Definition Documentation

#define DOUBLEFAULT_STACKSIZE   (1024)

Definition at line 12 of file doublefault_32.c.

#define ptr_ok

(

x

)

((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)

Definition at line 16 of file doublefault_32.c.

#define STACK_START   (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)

Definition at line 14 of file doublefault_32.c.

Variable Documentation

struct tss_struct doublefault_tss __cacheline_aligned

Initial value:

= {
    .x86_tss = {
        .sp0        = STACK_START,
        .ss0        = __KERNEL_DS,
        .ldt        = 0,
        .io_bitmap_base = INVALID_IO_BITMAP_OFFSET,

        .ip     = (unsigned long) doublefault_fn,
        
        .flags      = X86_EFLAGS_SF | 0x2,
        .sp     = STACK_START,
        .es     = __USER_DS,
        .cs     = __KERNEL_CS,
        .ss     = __KERNEL_DS,
        .ds     = __USER_DS,
        .fs     = __KERNEL_PERCPU,

        .__cr3      = __pa_nodebug(swapper_pg_dir),
    }
}

Definition at line 50 of file doublefault_32.c.