Rev 2089 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1816 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Martin Decky |
| 1816 | decky | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1952 | jermar | 29 | /** @addtogroup ia32xen |
| 1816 | decky | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1952 | jermar | 35 | #ifndef KERN_ia32xen_PM_H_ |
| 36 | #define KERN_ia32xen_PM_H_ |
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| 1816 | decky | 37 | |
| 38 | #define IDT_ITEMS 64 |
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| 39 | #define GDT_ITEMS 7 |
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| 40 | |||
| 41 | #define NULL_DES 0 |
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| 42 | #define KTEXT_DES 1 |
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| 43 | #define KDATA_DES 2 |
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| 44 | #define UTEXT_DES 3 |
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| 45 | #define UDATA_DES 4 |
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| 46 | #define TSS_DES 5 |
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| 47 | #define TLS_DES 6 /* Pointer to Thread-Local-Storage data */ |
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| 48 | |||
| 49 | #define selector(des) ((des) << 3) |
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| 50 | |||
| 51 | #define PL_KERNEL 1 |
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| 52 | #define PL_USER 3 |
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| 53 | |||
| 54 | #define AR_PRESENT (1<<7) |
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| 55 | #define AR_DATA (2<<3) |
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| 56 | #define AR_CODE (3<<3) |
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| 57 | #define AR_WRITABLE (1<<1) |
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| 58 | #define AR_INTERRUPT (0xe) |
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| 59 | #define AR_TSS (0x9) |
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| 60 | |||
| 61 | #define DPL_KERNEL (PL_KERNEL<<5) |
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| 62 | #define DPL_USER (PL_USER<<5) |
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| 63 | |||
| 64 | #define TSS_BASIC_SIZE 104 |
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| 65 | #define TSS_IOMAP_SIZE (16*1024+1) /* 16K for bitmap + 1 terminating byte for convenience */ |
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| 66 | |||
| 67 | #define IO_PORTS (64*1024) |
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| 68 | |||
| 69 | #ifndef __ASM__ |
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| 70 | |||
| 71 | #include <arch/types.h> |
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| 72 | #include <arch/context.h> |
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| 73 | |||
| 74 | struct ptr_16_32 { |
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| 75 | uint16_t limit; |
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| 76 | uint32_t base; |
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| 77 | } __attribute__ ((packed)); |
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| 78 | typedef struct ptr_16_32 ptr_16_32_t; |
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| 79 | |||
| 80 | struct descriptor { |
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| 81 | unsigned limit_0_15: 16; |
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| 82 | unsigned base_0_15: 16; |
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| 83 | unsigned base_16_23: 8; |
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| 84 | unsigned access: 8; |
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| 85 | unsigned limit_16_19: 4; |
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| 86 | unsigned available: 1; |
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| 87 | unsigned unused: 1; |
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| 88 | unsigned special: 1; |
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| 89 | unsigned granularity : 1; |
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| 90 | unsigned base_24_31: 8; |
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| 91 | } __attribute__ ((packed)); |
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| 92 | typedef struct descriptor descriptor_t; |
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| 93 | |||
| 94 | struct tss { |
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| 95 | uint16_t link; |
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| 96 | unsigned : 16; |
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| 97 | uint32_t esp0; |
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| 98 | uint16_t ss0; |
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| 99 | unsigned : 16; |
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| 100 | uint32_t esp1; |
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| 101 | uint16_t ss1; |
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| 102 | unsigned : 16; |
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| 103 | uint32_t esp2; |
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| 104 | uint16_t ss2; |
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| 105 | unsigned : 16; |
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| 106 | uint32_t cr3; |
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| 107 | uint32_t eip; |
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| 108 | uint32_t eflags; |
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| 109 | uint32_t eax; |
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| 110 | uint32_t ecx; |
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| 111 | uint32_t edx; |
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| 112 | uint32_t ebx; |
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| 113 | uint32_t esp; |
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| 114 | uint32_t ebp; |
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| 115 | uint32_t esi; |
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| 116 | uint32_t edi; |
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| 117 | uint16_t es; |
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| 118 | unsigned : 16; |
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| 119 | uint16_t cs; |
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| 120 | unsigned : 16; |
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| 121 | uint16_t ss; |
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| 122 | unsigned : 16; |
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| 123 | uint16_t ds; |
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| 124 | unsigned : 16; |
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| 125 | uint16_t fs; |
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| 126 | unsigned : 16; |
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| 127 | uint16_t gs; |
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| 128 | unsigned : 16; |
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| 129 | uint16_t ldtr; |
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| 130 | unsigned : 16; |
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| 131 | unsigned : 16; |
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| 132 | uint16_t iomap_base; |
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| 133 | uint8_t iomap[TSS_IOMAP_SIZE]; |
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| 134 | } __attribute__ ((packed)); |
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| 135 | typedef struct tss tss_t; |
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| 136 | |||
| 137 | extern ptr_16_32_t gdtr; |
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| 138 | extern ptr_16_32_t bootstrap_gdtr; |
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| 139 | extern ptr_16_32_t protected_ap_gdtr; |
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| 140 | extern struct tss *tss_p; |
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| 141 | |||
| 142 | extern descriptor_t gdt[]; |
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| 143 | |||
| 144 | extern void pm_init(void); |
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| 145 | |||
| 146 | extern void gdt_setbase(descriptor_t *d, uintptr_t base); |
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| 147 | extern void gdt_setlimit(descriptor_t *d, uint32_t limit); |
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| 148 | |||
| 1829 | decky | 149 | extern void traps_init(void); |
| 1816 | decky | 150 | |
| 151 | extern void tss_initialize(tss_t *t); |
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| 152 | extern void set_tls_desc(uintptr_t tls); |
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| 153 | |||
| 154 | #endif /* __ASM__ */ |
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| 155 | |||
| 156 | #endif |
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| 157 | |||
| 158 | /** @} |
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| 159 | */ |