WebSVN – HelenOS-historic – 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
#define TSS_IOMAP_SIZE  (16*1024+1) /* 16K for bitmap + 1 terminating byte for convenience */
 
#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[TSS_IOMAP_SIZE];
} __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 1187	Rev 1201
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 TSS_BASIC_SIZE 104	58	#define TSS_BASIC_SIZE 104
-		59	#define TSS_IOMAP_SIZE (161024+1) / 16K for bitmap + 1 terminating byte for convenience */
59		60
60	#ifndef __ASM__	61	#ifndef __ASM__
61		62
62	#include <arch/types.h>	63	#include <arch/types.h>
63	#include <typedefs.h>	64	#include <typedefs.h>
64	#include <arch/context.h>	65	#include <arch/context.h>
65		66
66	struct ptr_16_32 {	67	struct ptr_16_32 {
67	__u16 limit;	68	__u16 limit;
68	__u32 base;	69	__u32 base;
69	} __attribute__ ((packed));	70	} __attribute__ ((packed));
70	typedef struct ptr_16_32 ptr_16_32_t;	71	typedef struct ptr_16_32 ptr_16_32_t;
71		72
72	struct descriptor {	73	struct descriptor {
73	unsigned limit_0_15: 16;	74	unsigned limit_0_15: 16;
74	unsigned base_0_15: 16;	75	unsigned base_0_15: 16;
75	unsigned base_16_23: 8;	76	unsigned base_16_23: 8;
76	unsigned access: 8;	77	unsigned access: 8;
77	unsigned limit_16_19: 4;	78	unsigned limit_16_19: 4;
78	unsigned available: 1;	79	unsigned available: 1;
79	unsigned unused: 1;	80	unsigned unused: 1;
80	unsigned special: 1;	81	unsigned special: 1;
81	unsigned granularity : 1;	82	unsigned granularity : 1;
82	unsigned base_24_31: 8;	83	unsigned base_24_31: 8;
83	} __attribute__ ((packed));	84	} __attribute__ ((packed));
84	typedef struct descriptor descriptor_t;	85	typedef struct descriptor descriptor_t;
85		86
86	struct idescriptor {	87	struct idescriptor {
87	unsigned offset_0_15: 16;	88	unsigned offset_0_15: 16;
88	unsigned selector: 16;	89	unsigned selector: 16;
89	unsigned unused: 8;	90	unsigned unused: 8;
90	unsigned access: 8;	91	unsigned access: 8;
91	unsigned offset_16_31: 16;	92	unsigned offset_16_31: 16;
92	} __attribute__ ((packed));	93	} __attribute__ ((packed));
93	typedef struct idescriptor idescriptor_t;	94	typedef struct idescriptor idescriptor_t;
94		95
95	struct tss {	96	struct tss {
96	__u16 link;	97	__u16 link;
97	unsigned : 16;	98	unsigned : 16;
98	__u32 esp0;	99	__u32 esp0;
99	__u16 ss0;	100	__u16 ss0;
100	unsigned : 16;	101	unsigned : 16;
101	__u32 esp1;	102	__u32 esp1;
102	__u16 ss1;	103	__u16 ss1;
103	unsigned : 16;	104	unsigned : 16;
104	__u32 esp2;	105	__u32 esp2;
105	__u16 ss2;	106	__u16 ss2;
106	unsigned : 16;	107	unsigned : 16;
107	__u32 cr3;	108	__u32 cr3;
108	__u32 eip;	109	__u32 eip;
109	__u32 eflags;	110	__u32 eflags;
110	__u32 eax;	111	__u32 eax;
111	__u32 ecx;	112	__u32 ecx;
112	__u32 edx;	113	__u32 edx;
113	__u32 ebx;	114	__u32 ebx;
114	__u32 esp;	115	__u32 esp;
115	__u32 ebp;	116	__u32 ebp;
116	__u32 esi;	117	__u32 esi;
117	__u32 edi;	118	__u32 edi;
118	__u16 es;	119	__u16 es;
119	unsigned : 16;	120	unsigned : 16;
120	__u16 cs;	121	__u16 cs;
121	unsigned : 16;	122	unsigned : 16;
122	__u16 ss;	123	__u16 ss;
123	unsigned : 16;	124	unsigned : 16;
124	__u16 ds;	125	__u16 ds;
125	unsigned : 16;	126	unsigned : 16;
126	__u16 fs;	127	__u16 fs;
127	unsigned : 16;	128	unsigned : 16;
128	__u16 gs;	129	__u16 gs;
129	unsigned : 16;	130	unsigned : 16;
130	__u16 ldtr;	131	__u16 ldtr;
131	unsigned : 16;	132	unsigned : 16;
132	unsigned : 16;	133	unsigned : 16;
133	__u16 iomap_base;	134	__u16 iomap_base;
134	__u8 iomap[0x10000+1]; /* 64K + 1 terminating byte */	135	__u8 iomap[TSS_IOMAP_SIZE];
135	} __attribute__ ((packed));	136	} __attribute__ ((packed));
136	typedef struct tss tss_t;	137	typedef struct tss tss_t;
137		138
138	extern ptr_16_32_t gdtr;	139	extern ptr_16_32_t gdtr;
139	extern ptr_16_32_t bootstrap_gdtr;	140	extern ptr_16_32_t bootstrap_gdtr;
140	extern ptr_16_32_t protected_ap_gdtr;	141	extern ptr_16_32_t protected_ap_gdtr;
141	extern struct tss *tss_p;	142	extern struct tss *tss_p;
142		143
143	extern descriptor_t gdt[];	144	extern descriptor_t gdt[];
144		145
145	extern void pm_init(void);	146	extern void pm_init(void);
146		147
147	extern void gdt_setbase(descriptor_t *d, __address base);	148	extern void gdt_setbase(descriptor_t *d, __address base);
148	extern void gdt_setlimit(descriptor_t *d, __u32 limit);	149	extern void gdt_setlimit(descriptor_t *d, __u32 limit);
149		150
150	extern void idt_init(void);	151	extern void idt_init(void);
151	extern void idt_setoffset(idescriptor_t *d, __address offset);	152	extern void idt_setoffset(idescriptor_t *d, __address offset);
152		153
153	extern void tss_initialize(tss_t *t);	154	extern void tss_initialize(tss_t *t);
154	extern void set_tls_desc(__address tls);	155	extern void set_tls_desc(__address tls);
155		156
156	#endif /* __ASM__ */	157	#endif /* __ASM__ */
157		158
158	#endif	159	#endif
159		160

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia32/include/pm.h @ 1729 – Rev 1187 → 1201