alistair23-linux/arch/x86/um/asm/segment.h
Richard Weinberger f8d65d27e6 um: Rework uaccess code
Rework UML's uaccess code to reuse as much as possible
from asm-generic/uaccess.c.

Signed-off-by: Richard Weinberger <richard@nod.at>
2015-05-31 17:32:36 +02:00

19 lines
425 B
C

#ifndef __UM_SEGMENT_H
#define __UM_SEGMENT_H
extern int host_gdt_entry_tls_min;
#define GDT_ENTRY_TLS_ENTRIES 3
#define GDT_ENTRY_TLS_MIN host_gdt_entry_tls_min
#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
typedef struct {
unsigned long seg;
} mm_segment_t;
#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
#define KERNEL_DS MAKE_MM_SEG(~0UL)
#define USER_DS MAKE_MM_SEG(TASK_SIZE)
#endif