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Rev 2787 Rev 4377
Line 52... Line 52...
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uintptr_t last_frame = 0;
 52 
uintptr_t last_frame = 0;
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 53 
 
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static void init_e820_memory(pfn_t minconf)
 54 
static void init_e820_memory(pfn_t minconf)
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{
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{
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    unsigned int i;
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    unsigned int i;
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    pfn_t start, conf;
 - 
 
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    size_t size;
 - 
 
59 
 
 - 
 
60 
    for (i = 0; i < e820counter; i++) {
 57 
    for (i = 0; i < e820counter; i++) {
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        uint64_t base = e820table[i].base_address;
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        uint64_t size = e820table[i].size;
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 60 
       
- 
 
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#ifdef __32_BITS__
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 62 
       
- 
 
 63 
        /* Ignore physical memory above 4 GB */
- 
 
 64 
        if ((base >> 32) != 0)
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 65 
            continue;
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 66 
       
- 
 
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        /* Clip regions above 4 GB */
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        if (((base + size) >> 32) != 0)
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            size = 0xffffffff - base;
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 70 
       
- 
 
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#endif
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        pfn_t pfn;
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        count_t count;
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        if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {
 75 
        if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {
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            /* To be safe, make available zone possibly smaller */
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            start = ADDR2PFN(ALIGN_UP(e820table[i].base_address, FRAME_SIZE));
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            pfn = ADDR2PFN(ALIGN_UP(base, FRAME_SIZE));
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            size = SIZE2FRAMES(ALIGN_DOWN(e820table[i].size, FRAME_SIZE));
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            count = SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE));
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 79 
           
- 
 
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            pfn_t conf;
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            if ((minconf < start) || (minconf >= start + size))
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            if ((minconf < pfn) || (minconf >= pfn + count))
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                conf = start;
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                conf = pfn;
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            else
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            else
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                conf = minconf;
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                conf = minconf;
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 85 
           
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            zone_create(start, size, conf, 0);
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            zone_create(pfn, count, conf, ZONE_AVAILABLE);
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- 
 
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            // XXX this has to be removed
- 
 
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            if (last_frame < ALIGN_UP(base + size, FRAME_SIZE))
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                last_frame = ALIGN_UP(base + size, FRAME_SIZE);
- 
 
 91 
        }
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 92 
       
- 
 
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        if (e820table[i].type == MEMMAP_MEMORY_RESERVED) {
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 94 
            /* To be safe, make reserved zone possibly larger */
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 95 
            pfn = ADDR2PFN(ALIGN_DOWN(base, FRAME_SIZE));
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            count = SIZE2FRAMES(ALIGN_UP(size, FRAME_SIZE));
71 
           
 97 
           
72 
            if (last_frame < ALIGN_UP(e820table[i].base_address +
 98 
            zone_create(pfn, count, 0, ZONE_RESERVED);
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 99 
        }
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 100 
       
73 
                e820table[i].size, FRAME_SIZE))
 101 
        if (e820table[i].type == MEMMAP_MEMORY_ACPI) {
74 
                last_frame =
 102 
            /* To be safe, make firmware zone possibly larger */
75 
                    ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE);
 103 
            pfn = ADDR2PFN(ALIGN_DOWN(base, (uintptr_t) FRAME_SIZE));
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 104 
            count = SIZE2FRAMES(ALIGN_UP(size, (uintptr_t) FRAME_SIZE));
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 105 
           
- 
 
 106 
            zone_create(pfn, count, 0, ZONE_FIRMWARE);
76 
        }          
 107 
        }
77 
    }
 108 
    }
78 
}
 109 
}
79 
 
 110 
 
80 
static char *e820names[] = {
 111 
static char *e820names[] = {
81 
    "invalid",
 112 
    "invalid",
Line 111... Line 142...
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{
 142 
{
112 
    pfn_t minconf;
 143 
    pfn_t minconf;
113 
   
 144 
   
114 
    if (config.cpu_active == 1) {
 145 
    if (config.cpu_active == 1) {
115 
        minconf = 1;
 146 
        minconf = 1;
- 
 
 147 
       
116 
#ifdef CONFIG_SMP
 148 
#ifdef CONFIG_SMP
117 
        minconf = max(minconf,
 149 
        minconf = max(minconf,
118 
            ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size +
 150 
            ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size +
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            hardcoded_unmapped_kdata_size));
 151 
            hardcoded_unmapped_kdata_size));
120 
#endif
 152 
#endif
121 
#ifdef CONFIG_SIMICS_FIX
 - 
 
122 
        minconf = max(minconf, ADDR2PFN(0x10000));
 - 
 
123 
#endif
 - 
 
124 
        init_e820_memory(minconf);
 153 
        init_e820_memory(minconf);
125 
 
 154 
       
126 
        /* Reserve frame 0 (BIOS data) */
 155 
        /* Reserve frame 0 (BIOS data) */
127 
        frame_mark_unavailable(0, 1);
 156 
        frame_mark_unavailable(0, 1);
128 
       
 157 
       
129 
#ifdef CONFIG_SMP
 158 
#ifdef CONFIG_SMP
130 
        /* Reserve AP real mode bootstrap memory */
 159 
        /* Reserve AP real mode bootstrap memory */
131 
        frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,
 160 
        frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,
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            (hardcoded_unmapped_ktext_size +
 161 
            (hardcoded_unmapped_ktext_size +
133 
            hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);
 162 
            hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);
134 
       
 - 
 
135 
#ifdef CONFIG_SIMICS_FIX
 - 
 
136 
        /* Don't know why, but these addresses help */
 - 
 
137 
        frame_mark_unavailable(0xd000 >> FRAME_WIDTH, 3);
 - 
 
138 
#endif
 - 
 
139 
#endif
 163 
#endif
140 
    }
 164 
    }
141 
}
 165 
}
142 
 
 166 
 
143 
/** @}
 167 
/** @}