WebSVN – HelenOS – Diff – /kernel/trunk/arch/ia32/include/pm.h


/*
 * Copyright (C) 2001-2004 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef __PM_H__
#define __PM_H__
 
#define IDT_ITEMS 64
#define GDT_ITEMS 7
 
#define NULL_DES    0
#define KTEXT_DES   1
#define KDATA_DES   2
#define UTEXT_DES   3
#define UDATA_DES   4
#define TSS_DES     5
#define TLS_DES         6 /* Pointer to Thread-Local-Storage data */
 
#define selector(des)   ((des)<<3)
 
#define PL_KERNEL   0
#define PL_USER     3
 
#define AR_PRESENT  (1<<7)
#define AR_DATA     (2<<3)
#define AR_CODE     (3<<3)
#define AR_WRITABLE (1<<1)
#define AR_INTERRUPT    (0xe)
#define AR_TSS      (0x9)
 
#define DPL_KERNEL  (PL_KERNEL<<5)
#define DPL_USER    (PL_USER<<5)
 
#define TSS_BASIC_SIZE  104
 
#ifndef __ASM__
 
#include <arch/types.h>
#include <typedefs.h>
#include <arch/context.h>
 
struct ptr_16_32 {
    __u16 limit;
    __u32 base;
} __attribute__ ((packed));
typedef struct ptr_16_32 ptr_16_32_t;
 
struct descriptor {
    unsigned limit_0_15: 16;
    unsigned base_0_15: 16;
    unsigned base_16_23: 8;
    unsigned access: 8;
    unsigned limit_16_19: 4;
    unsigned available: 1;
    unsigned unused: 1;
    unsigned special: 1;
    unsigned granularity : 1;
    unsigned base_24_31: 8;
} __attribute__ ((packed));
typedef struct descriptor  descriptor_t;
 
struct idescriptor {
    unsigned offset_0_15: 16;
    unsigned selector: 16;
    unsigned unused: 8;
    unsigned access: 8;
    unsigned offset_16_31: 16;
} __attribute__ ((packed));
 
typedef struct idescriptor idescriptor_t;
 
struct tss {
    __u16 link;
    unsigned : 16;
    __u32 esp0;
    __u16 ss0;
    unsigned : 16;
    __u32 esp1;
    __u16 ss1;
    unsigned : 16;
    __u32 esp2;
    __u16 ss2;
    unsigned : 16;
    __u32 cr3;
    __u32 eip;
    __u32 eflags;
    __u32 eax;
    __u32 ecx;
    __u32 edx;
    __u32 ebx;
    __u32 esp;
    __u32 ebp;
    __u32 esi;
    __u32 edi;
    __u16 es;
    unsigned : 16;
    __u16 cs;
    unsigned : 16;
    __u16 ss;
    unsigned : 16;
    __u16 ds;
    unsigned : 16;
    __u16 fs;
    unsigned : 16;
    __u16 gs;
    unsigned : 16;
    __u16 ldtr;
    unsigned : 16;
    unsigned : 16;
    __u16 iomap_base;
    __u8 iomap[0x10000+1];  /* 64K + 1 terminating byte */
} __attribute__ ((packed));
typedef struct tss tss_t;
 
extern ptr_16_32_t gdtr;
extern ptr_16_32_t bootstrap_gdtr;
extern ptr_16_32_t protected_ap_gdtr;
extern struct tss *tss_p;
 
extern descriptor_t gdt[];
 
extern void pm_init(void);
 
extern void gdt_setbase(descriptor_t *d, __address base);
extern void gdt_setlimit(descriptor_t *d, __u32 limit);
 
extern void idt_init(void);
extern void idt_setoffset(idescriptor_t *d, __address offset);
 
extern void tss_initialize(tss_t *t);
extern void set_tls_desc(__address tls);
 
#endif /* __ASM__ */
 
#endif
 

Rev 1184	Rev 1187
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#ifndef __PM_H__	29	#ifndef __PM_H__
30	#define __PM_H__	30	#define __PM_H__
31		31
32	#define IDT_ITEMS 64	32	#define IDT_ITEMS 64
33	#define GDT_ITEMS 7	33	#define GDT_ITEMS 7
34		34
35	#define NULL_DES 0	35	#define NULL_DES 0
36	#define KTEXT_DES 1	36	#define KTEXT_DES 1
37	#define KDATA_DES 2	37	#define KDATA_DES 2
38	#define UTEXT_DES 3	38	#define UTEXT_DES 3
39	#define UDATA_DES 4	39	#define UDATA_DES 4
40	#define TSS_DES 5	40	#define TSS_DES 5
41	#define TLS_DES 6 /* Pointer to Thread-Local-Storage data */	41	#define TLS_DES 6 /* Pointer to Thread-Local-Storage data */
42		42
43	#define selector(des) ((des)<<3)	43	#define selector(des) ((des)<<3)
44		44
45	#define PL_KERNEL 0	45	#define PL_KERNEL 0
46	#define PL_USER 3	46	#define PL_USER 3
47		47
48	#define AR_PRESENT (1<<7)	48	#define AR_PRESENT (1<<7)
49	#define AR_DATA (2<<3)	49	#define AR_DATA (2<<3)
50	#define AR_CODE (3<<3)	50	#define AR_CODE (3<<3)
51	#define AR_WRITABLE (1<<1)	51	#define AR_WRITABLE (1<<1)
52	#define AR_INTERRUPT (0xe)	52	#define AR_INTERRUPT (0xe)
53	#define AR_TSS (0x9)	53	#define AR_TSS (0x9)
54		54
55	#define DPL_KERNEL (PL_KERNEL<<5)	55	#define DPL_KERNEL (PL_KERNEL<<5)
56	#define DPL_USER (PL_USER<<5)	56	#define DPL_USER (PL_USER<<5)
57		57
58	#define IO_MAP_BASE (104)	58	#define TSS_BASIC_SIZE 104
59		59
60	#ifndef __ASM__	60	#ifndef __ASM__
61		61
62	#include <arch/types.h>	62	#include <arch/types.h>
63	#include <typedefs.h>	63	#include <typedefs.h>
64	#include <arch/context.h>	64	#include <arch/context.h>
65		65
66	struct ptr_16_32 {	66	struct ptr_16_32 {
67	__u16 limit;	67	__u16 limit;
68	__u32 base;	68	__u32 base;
69	} __attribute__ ((packed));	69	} __attribute__ ((packed));
-		70	typedef struct ptr_16_32 ptr_16_32_t;
70		71
71	struct descriptor {	72	struct descriptor {
72	unsigned limit_0_15: 16;	73	unsigned limit_0_15: 16;
73	unsigned base_0_15: 16;	74	unsigned base_0_15: 16;
74	unsigned base_16_23: 8;	75	unsigned base_16_23: 8;
75	unsigned access: 8;	76	unsigned access: 8;
76	unsigned limit_16_19: 4;	77	unsigned limit_16_19: 4;
77	unsigned available: 1;	78	unsigned available: 1;
78	unsigned unused: 1;	79	unsigned unused: 1;
79	unsigned special: 1;	80	unsigned special: 1;
80	unsigned granularity : 1;	81	unsigned granularity : 1;
81	unsigned base_24_31: 8;	82	unsigned base_24_31: 8;
82	} __attribute__ ((packed));	83	} __attribute__ ((packed));
-		84	typedef struct descriptor descriptor_t;
83		85
84	struct idescriptor {	86	struct idescriptor {
85	unsigned offset_0_15: 16;	87	unsigned offset_0_15: 16;
86	unsigned selector: 16;	88	unsigned selector: 16;
87	unsigned unused: 8;	89	unsigned unused: 8;
88	unsigned access: 8;	90	unsigned access: 8;
89	unsigned offset_16_31: 16;	91	unsigned offset_16_31: 16;
90	} __attribute__ ((packed));	92	} __attribute__ ((packed));
91		-
-		93	typedef struct idescriptor idescriptor_t;
92		94
93	struct tss {	95	struct tss {
94	__u16 link;	96	__u16 link;
95	unsigned : 16;	97	unsigned : 16;
96	__u32 esp0;	98	__u32 esp0;
97	__u16 ss0;	99	__u16 ss0;
98	unsigned : 16;	100	unsigned : 16;
99	__u32 esp1;	101	__u32 esp1;
100	__u16 ss1;	102	__u16 ss1;
101	unsigned : 16;	103	unsigned : 16;
102	__u32 esp2;	104	__u32 esp2;
103	__u16 ss2;	105	__u16 ss2;
104	unsigned : 16;	106	unsigned : 16;
105	__u32 cr3;	107	__u32 cr3;
106	__u32 eip;	108	__u32 eip;
107	__u32 eflags;	109	__u32 eflags;
108	__u32 eax;	110	__u32 eax;
109	__u32 ecx;	111	__u32 ecx;
110	__u32 edx;	112	__u32 edx;
111	__u32 ebx;	113	__u32 ebx;
112	__u32 esp;	114	__u32 esp;
113	__u32 ebp;	115	__u32 ebp;
114	__u32 esi;	116	__u32 esi;
115	__u32 edi;	117	__u32 edi;
116	__u16 es;	118	__u16 es;
117	unsigned : 16;	119	unsigned : 16;
118	__u16 cs;	120	__u16 cs;
119	unsigned : 16;	121	unsigned : 16;
120	__u16 ss;	122	__u16 ss;
121	unsigned : 16;	123	unsigned : 16;
122	__u16 ds;	124	__u16 ds;
123	unsigned : 16;	125	unsigned : 16;
124	__u16 fs;	126	__u16 fs;
125	unsigned : 16;	127	unsigned : 16;
126	__u16 gs;	128	__u16 gs;
127	unsigned : 16;	129	unsigned : 16;
128	__u16 ldtr;	130	__u16 ldtr;
129	unsigned : 16;	131	unsigned : 16;
130	unsigned : 16;	132	unsigned : 16;
131	__u16 iomap_base;	133	__u16 iomap_base;
132	__u8 iomap[0x10000+1]; /* 64K + 1 terminating byte */	134	__u8 iomap[0x10000+1]; /* 64K + 1 terminating byte */
133	} __attribute__ ((packed));	135	} __attribute__ ((packed));
-		136	typedef struct tss tss_t;
134		137
135	extern struct ptr_16_32 gdtr;	138	extern ptr_16_32_t gdtr;
136	extern struct ptr_16_32 bootstrap_gdtr;	139	extern ptr_16_32_t bootstrap_gdtr;
137	extern struct ptr_16_32 protected_ap_gdtr;	140	extern ptr_16_32_t protected_ap_gdtr;
138	extern struct tss *tss_p;	141	extern struct tss *tss_p;
139		142
140	extern struct descriptor gdt[];	143	extern descriptor_t gdt[];
141		144
142	extern void pm_init(void);	145	extern void pm_init(void);
143		146
144	extern void gdt_setbase(struct descriptor *d, __address base);	147	extern void gdt_setbase(descriptor_t *d, __address base);
145	extern void gdt_setlimit(struct descriptor *d, __u32 limit);	148	extern void gdt_setlimit(descriptor_t *d, __u32 limit);
146		149
147	extern void idt_init(void);	150	extern void idt_init(void);
148	extern void idt_setoffset(struct idescriptor *d, __address offset);	151	extern void idt_setoffset(idescriptor_t *d, __address offset);
149		152
150	extern void tss_initialize(struct tss *t);	153	extern void tss_initialize(tss_t *t);
151	extern void set_tls_desc(__address tls);	154	extern void set_tls_desc(__address tls);
152		155
153	#endif /* __ASM__ */	156	#endif /* __ASM__ */
154		157
155	#endif	158	#endif
156		159

Subversion Repositories HelenOS

(root)/kernel/trunk/arch/ia32/include/pm.h – Rev 1184 → 1187