[deliverable/linux.git] / arch / x86 / include / asm / mpx.h

#ifndef _ASM_X86_MPX_H
#define _ASM_X86_MPX_H

#include <linux/types.h>
#include <asm/ptrace.h>

#ifdef CONFIG_X86_64

/* upper 28 bits [47:20] of the virtual address in 64-bit used to
 * index into bounds directory (BD).
 */
#define MPX_BD_ENTRY_OFFSET	28
#define MPX_BD_ENTRY_SHIFT	3
/* bits [19:3] of the virtual address in 64-bit used to index into
 * bounds table (BT).
 */
#define MPX_BT_ENTRY_OFFSET	17
#define MPX_BT_ENTRY_SHIFT	5
#define MPX_IGN_BITS		3

#else

#define MPX_BD_ENTRY_OFFSET	20
#define MPX_BD_ENTRY_SHIFT	2
#define MPX_BT_ENTRY_OFFSET	10
#define MPX_BT_ENTRY_SHIFT	4
#define MPX_IGN_BITS		2

#endif

#define MPX_BD_SIZE_BYTES (1UL<<(MPX_BD_ENTRY_OFFSET+MPX_BD_ENTRY_SHIFT))
#define MPX_BT_SIZE_BYTES (1UL<<(MPX_BT_ENTRY_OFFSET+MPX_BT_ENTRY_SHIFT))

#define MPX_BNDSTA_ERROR_CODE	0x3

#endif /* _ASM_X86_MPX_H */
Commit	Line	Data
57319d80 QR	1	#ifndef _ASM_X86_MPX_H
	2	#define _ASM_X86_MPX_H
	3
	4	#include <linux/types.h>
	5	#include <asm/ptrace.h>
	6
	7	#ifdef CONFIG_X86_64
	8
	9	/* upper 28 bits [47:20] of the virtual address in 64-bit used to
	10	* index into bounds directory (BD).
	11	*/
	12	#define MPX_BD_ENTRY_OFFSET 28
	13	#define MPX_BD_ENTRY_SHIFT 3
	14	/* bits [19:3] of the virtual address in 64-bit used to index into
	15	* bounds table (BT).
	16	*/
	17	#define MPX_BT_ENTRY_OFFSET 17
	18	#define MPX_BT_ENTRY_SHIFT 5
	19	#define MPX_IGN_BITS 3
	20
	21	#else
	22
	23	#define MPX_BD_ENTRY_OFFSET 20
	24	#define MPX_BD_ENTRY_SHIFT 2
	25	#define MPX_BT_ENTRY_OFFSET 10
	26	#define MPX_BT_ENTRY_SHIFT 4
	27	#define MPX_IGN_BITS 2
	28
	29	#endif
	30
	31	#define MPX_BD_SIZE_BYTES (1UL<<(MPX_BD_ENTRY_OFFSET+MPX_BD_ENTRY_SHIFT))
	32	#define MPX_BT_SIZE_BYTES (1UL<<(MPX_BT_ENTRY_OFFSET+MPX_BT_ENTRY_SHIFT))
	33
	34	#define MPX_BNDSTA_ERROR_CODE 0x3
	35
	36	#endif /* _ASM_X86_MPX_H */