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  1. /*
  2.  * Copyright (c) 2001-2004 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  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
  15.  *   derived from this software without specific prior written permission.
  16.  *
  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
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  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
  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
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup ia32mm 
  30.  * @{
  31.  */
  32. /** @file
  33.  * @ingroup ia32mm, amd64mm
  34.  */
  35.  
  36. #include <mm/frame.h>
  37. #include <arch/mm/frame.h>
  38. #include <mm/as.h>
  39. #include <config.h>
  40. #include <arch/boot/boot.h>
  41. #include <arch/boot/memmap.h>
  42. #include <panic.h>
  43. #include <debug.h>
  44. #include <align.h>
  45. #include <macros.h>
  46.  
  47. #include <print.h>
  48. #include <console/cmd.h>
  49. #include <console/kconsole.h>
  50.  
  51. size_t hardcoded_unmapped_ktext_size = 0;
  52. size_t hardcoded_unmapped_kdata_size = 0;
  53.  
  54. uintptr_t last_frame = 0;
  55.  
  56. static void init_e820_memory(pfn_t minconf)
  57. {
  58.     int i;
  59.     pfn_t start, conf;
  60.     size_t size;
  61.  
  62.     for (i = 0; i < e820counter; i++) {
  63.         if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {
  64.             start = ADDR2PFN(ALIGN_UP(e820table[i].base_address,
  65.                           FRAME_SIZE));
  66.             size = SIZE2FRAMES(ALIGN_DOWN(e820table[i].size,
  67.                            FRAME_SIZE));
  68.             if (minconf < start || minconf >= start + size)
  69.                 conf = start;
  70.             else
  71.                 conf = minconf;
  72.             zone_create(start, size, conf, 0);
  73.             if (last_frame < ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE))
  74.                 last_frame = ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE);
  75.         }          
  76.     }
  77. }
  78.  
  79. static int cmd_e820mem(cmd_arg_t *argv);
  80. static cmd_info_t e820_info = {
  81.     .name = "e820list",
  82.     .description = "List e820 memory.",
  83.     .func = cmd_e820mem,
  84.     .argc = 0
  85. };
  86.  
  87. static char *e820names[] = { "invalid", "available", "reserved",
  88.                  "acpi", "nvs", "unusable" };
  89.  
  90.  
  91. static int cmd_e820mem(cmd_arg_t *argv)
  92. {
  93.     int i;
  94.     char *name;
  95.  
  96.     for (i = 0; i < e820counter; i++) {
  97.         if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE)
  98.             name = e820names[e820table[i].type];
  99.         else
  100.             name = "invalid";
  101.         printf("%.*p %#.16llXB %s\n",
  102.             sizeof(unative_t) * 2,
  103.                (unative_t) e820table[i].base_address,
  104.                (uint64_t) e820table[i].size,
  105.                name);
  106.     }          
  107.     return 0;
  108. }
  109.  
  110.  
  111. void frame_arch_init(void)
  112. {
  113.     static pfn_t minconf;
  114.  
  115.     if (config.cpu_active == 1) {
  116.         cmd_initialize(&e820_info);
  117.         cmd_register(&e820_info);
  118.  
  119.  
  120.         minconf = 1;
  121. #ifdef CONFIG_SMP
  122.         minconf = max(minconf,
  123.                   ADDR2PFN(AP_BOOT_OFFSET+hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size));
  124. #endif
  125. #ifdef CONFIG_SIMICS_FIX
  126.         minconf = max(minconf, ADDR2PFN(0x10000));
  127. #endif
  128.         init_e820_memory(minconf);
  129.  
  130.         /* Reserve frame 0 (BIOS data) */
  131.         frame_mark_unavailable(0, 1);
  132.        
  133. #ifdef CONFIG_SMP
  134.         /* Reserve AP real mode bootstrap memory */
  135.         frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,
  136.                        (hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);
  137.        
  138. #ifdef CONFIG_SIMICS_FIX
  139.         /* Don't know why, but these addresses help */
  140.         frame_mark_unavailable(0xd000 >> FRAME_WIDTH,3);
  141. #endif
  142. #endif
  143.     }
  144. }
  145.  
  146. /** @}
  147.  */
  148.