🐛 bug fix

kernel/common/printk.c

@@ -35,13 +35,42 @@ int printk_init(const int char_size_x, const int char_size_y)
 
     // @todo:将来需要将帧缓冲区物理地址填写到这个地址的页表项中
     VBE_FB_phys_addr = (ul *)info.framebuffer_addr;
-    pos.FB_address = (unsigned int *)0x0000000003000000;
+    pos.FB_address = (uint *)0x0000000003000000;
-    pos.FB_length = pos.width * pos.height;
+    pos.FB_length = pos.width * pos.height*2;
+
+    // ======== 临时的将物理地址填写到0x0000000003000000处 之后会在mm内将帧缓存区重新映射=====
+
+    global_CR3 = get_CR3();
+    ul fb_virt_addr = pos.FB_address;
+    ul fb_phys_addr = VBE_FB_phys_addr;
+
+    // 计算帧缓冲区的线性地址对应的pml4页表项的地址
+    ul *tmp = phys_2_virt((ul *)((ul)global_CR3 & (~0xfffUL)) + ((fb_virt_addr >> PAGE_GDT_SHIFT) & 0x1ff));
+
+    tmp = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + ((fb_virt_addr >> PAGE_1G_SHIFT) & 0x1ff));
+
+    ul *tmp1;
+    // 初始化2M物理页
+    for (ul i = 0; i < (PAGE_2M_SIZE<<3); i += PAGE_2M_SIZE)
+    {
+        // 计算当前2M物理页对应的pdt的页表项的物理地址
+        tmp1 = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + (((fb_virt_addr + i) >> PAGE_2M_SHIFT) & 0x1ff));
+
+        // 页面写穿，禁止缓存
+        set_pdt(tmp1, mk_pdt((ul)fb_phys_addr + i, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD));
+    }
+
+    flush_tlb();
 
     pos.x = 0;
     pos.y = 0;
+
     cls();
 
+    kdebug("width=%d\theight=%d", pos.width, pos.height);
+
+    while(1)
+
     return 0;
 }
 
@@ -571,7 +600,7 @@ static char *write_float_point_num(char *str, double num, int field_width, int p
     return str;
 }
 
-static void putchar(unsigned int *fb, int Xsize, int x, int y, unsigned int FRcolor, unsigned int BKcolor, unsigned char font)
+static void putchar(uint *fb, int Xsize, int x, int y, unsigned int FRcolor, unsigned int BKcolor, unsigned char font)
 {
     /**
      * @brief 在屏幕上指定位置打印字符
@@ -809,7 +838,12 @@ ul get_VBE_FB_length()
  * @brief 设置pos变量中的VBE帧缓存区的线性地址
  * @param virt_addr VBE帧缓存区线性地址
  */
-void set_pos_VBE_FB_addr(ul virt_addr)
+void set_pos_VBE_FB_addr(uint *virt_addr)
 {
-    pos.FB_address = virt_addr;
+    pos.FB_address = (uint *)virt_addr;
+}
+
+uint* get_pos_VBE_FB_addr()
+{
+    return pos.FB_address;
 }

kernel/common/printk.h

@@ -45,7 +45,7 @@ struct screen_info
 
     int char_size_x, char_size_y;
 
-    unsigned int *FB_address; //帧缓冲区首地址
+    uint *FB_address; //帧缓冲区首地址
 
     unsigned long FB_length; // 帧缓冲区长度
 };
@@ -103,7 +103,7 @@ static char *write_float_point_num(char *str, double num, int field_width, int p
  * @param BKcolor 背景颜色
  * @param font 字符的bitmap
  */
-static void putchar(unsigned int *fb, int Xsize, int x, int y, unsigned int FRcolor, unsigned int BKcolor, unsigned char font);
+static void putchar(uint *fb, int Xsize, int x, int y, unsigned int FRcolor, unsigned int BKcolor, unsigned char font);
 
 /**
  * @brief 格式化打印字符串
@@ -148,4 +148,6 @@ ul get_VBE_FB_length();
  * @brief 设置pos变量中的VBE帧缓存区的线性地址
  * @param virt_addr VBE帧缓存区线性地址
  */
-void set_pos_VBE_FB_addr(ul virt_addr);
+void set_pos_VBE_FB_addr(uint* virt_addr);
+
+uint* get_pos_VBE_FB_addr();

kernel/head.S

@@ -533,6 +533,10 @@ __PDE:
 	.quad	0x2a00083
 	.quad	0x2c00083
 	.quad	0x2e00083
+	.quad	0x3000083
+	.quad	0x3200083
+	.quad	0x3400083
+	.quad	0x3600083
 
 
 	.quad	0xe0000083		/*虚拟地址0x 3000000 初始情况下，帧缓冲区映射到这里*/ 
@@ -543,7 +547,15 @@ __PDE:
 	.quad	0xe0a00083
 	.quad	0xe0c00083
 	.quad	0xe0e00083
-	.fill	480,8,0
+    .quad	0xe1000083
+    .quad	0xe1200083
+    .quad	0xe1400083
+    .quad	0xe1600083
+    .quad	0xe1800083
+    .quad	0xe1a00083
+    .quad	0xe1c00083
+    .quad	0xe1e00083
+	.fill	468,8,0
 
 // GDT表
 .section .data

kernel/main.c

@@ -133,9 +133,10 @@ void system_initialize()
 {
 
     // 初始化printk
-
     printk_init(8, 16);
 
+    kinfo("Kernel Starting...");
+
     load_TR(10); // 加载TR寄存器
     ul tss_item_addr = 0x7c00;
 
@@ -157,9 +158,9 @@ void system_initialize()
     cpu_init();
 
     // test_slab();
-    //test_mm();
+    // test_mm();
     //  再初始化进程模块。顺序不能调转
-    //process_init();
+    // process_init();
 }
 
 //操作系统内核从这里开始执行

kernel/mm/mm.c

@@ -492,7 +492,7 @@ void init_frame_buffer()
 {
     kinfo("Re-mapping VBE frame buffer...");
     global_CR3 = get_CR3();
-    ul fb_virt_addr = 0xffff800003000000;
+    ul fb_virt_addr = 0xffff800008000000;
     ul fb_phys_addr = get_VBE_FB_phys_addr();
 
     // 计算帧缓冲区的线性地址对应的pml4页表项的地址
@@ -514,16 +514,16 @@ void init_frame_buffer()
     ul vbe_fb_length = get_VBE_FB_length();
     ul *tmp1;
     // 初始化2M物理页
-    for (ul i = 0; i < vbe_fb_length; i += PAGE_2M_SIZE)
+    for (ul i = 0; i < (PAGE_2M_SIZE<<3); i += PAGE_2M_SIZE)
     {
         // 计算当前2M物理页对应的pdt的页表项的物理地址
-        tmp1 = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + (((fb_virt_addr + i) >> PAGE_2M_SHIFT) & 0x1ff));
+        tmp1 = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + (((ul)(fb_virt_addr + i) >> PAGE_2M_SHIFT) & 0x1ff));
 
         // 页面写穿，禁止缓存
         set_pdt(tmp1, mk_pdt((ul)fb_phys_addr+i, PAGE_KERNEL_PAGE| PAGE_PWT| PAGE_PCD));
     }
 
-    set_pos_VBE_FB_addr(fb_virt_addr);
+    set_pos_VBE_FB_addr((uint*)fb_virt_addr);
     flush_tlb();
     kinfo("VBE frame buffer successfully Re-mapped!");
 }

kernel/mm/slab.c

@@ -332,6 +332,7 @@ ul slab_init()
     {
         // 将slab内存池对象的空间放置在mms的后面，并且预留4个unsigned long 的空间以防止内存越界
         kmalloc_cache_group[i].cache_pool_entry = (struct slab_obj *)memory_management_struct.end_of_struct;
+
         memory_management_struct.end_of_struct += sizeof(struct slab_obj) + (sizeof(ul) << 2);
 
         list_init(&kmalloc_cache_group[i].cache_pool_entry->list);
@@ -362,14 +363,18 @@ ul slab_init()
     // 将上面初始化内存池组时，所占用的内存页进行初始化
     ul tmp_page_mms_end = virt_2_phys(memory_management_struct.end_of_struct) >> PAGE_2M_SHIFT;
 
+    ul page_num = 0;
     for (int i = PAGE_2M_ALIGN(virt_2_phys(tmp_addr)) >> PAGE_2M_SHIFT; i <= tmp_page_mms_end; ++i)
     {
         page = memory_management_struct.pages_struct + i;
-
+        page_num = page->addr_phys >> PAGE_2M_SHIFT;
+        *(memory_management_struct.bmp + (page_num >> 6)) |= (1UL << (page_num % 64));
+        ++page->zone->count_pages_using;
+        --page->zone->count_pages_free;
         page_init(page, PAGE_KERNEL_INIT | PAGE_KERNEL | PAGE_PGT_MAPPED);
     }
 
-    printk_color(ORANGE, BLACK, "2.memory_management_struct.bmp:%#018lx\tzone_struct->count_pages_using:%d\tzone_struct->count_pages_free:%d\n", *memory_management_struct.bmp, memory_management_struct.zones_struct->count_pages_using, memory_management_struct.zones_struct->count_pages_free);
+    kdebug("2.memory_management_struct.bmp:%#018lx\tzone_struct->count_pages_using:%d\tzone_struct->count_pages_free:%d", *memory_management_struct.bmp, memory_management_struct.zones_struct->count_pages_using, memory_management_struct.zones_struct->count_pages_free);
 
     // 为slab内存池对象分配内存空间
     ul *virt = NULL;
@@ -380,14 +385,17 @@ ul slab_init()
 
         page = Virt_To_2M_Page(virt);
 
+        page_num = page->addr_phys >> PAGE_2M_SHIFT;
+        *(memory_management_struct.bmp + (page_num >> 6)) |= (1UL << (page_num % 64));
+        ++page->zone->count_pages_using;
+        --page->zone->count_pages_free;
         page_init(page, PAGE_PGT_MAPPED | PAGE_KERNEL | PAGE_KERNEL_INIT);
 
-
         kmalloc_cache_group[i].cache_pool_entry->page = page;
 
         kmalloc_cache_group[i].cache_pool_entry->vaddr = virt;
     }
-    printk_color(ORANGE, BLACK, "3.memory_management_struct.bmp:%#018lx\tzone_struct->count_pages_using:%d\tzone_struct->count_pages_free:%d\n", *memory_management_struct.bmp, memory_management_struct.zones_struct->count_pages_using, memory_management_struct.zones_struct->count_pages_free);
+    kdebug("3.memory_management_struct.bmp:%#018lx\tzone_struct->count_pages_using:%d\tzone_struct->count_pages_free:%d", *memory_management_struct.bmp, memory_management_struct.zones_struct->count_pages_using, memory_management_struct.zones_struct->count_pages_free);
 
     kinfo("SLAB initialized successfully!");
 
@@ -487,7 +495,7 @@ struct slab_obj *kmalloc_create_slab_obj(ul size)
         break;
     // size 错误
     default:
-        kerror("kamlloc_create(): Wrong size%d\n", size);
+        kerror("kamlloc_create(): Wrong size%d", size);
         free_pages(page, 1);
         return NULL;
         break;
@@ -520,7 +528,7 @@ void *kmalloc(unsigned long size, unsigned long flags)
 
     struct slab_obj *slab_obj_ptr = kmalloc_cache_group[index].cache_pool_entry;
 
-    kdebug("count_total_free=%d", kmalloc_cache_group[index].count_total_free);
+    //kdebug("count_total_free=%d", kmalloc_cache_group[index].count_total_free);
 
     // 内存池没有可用的内存对象，需要进行扩容
     if (kmalloc_cache_group[index].count_total_free == 0)
@@ -551,17 +559,16 @@ void *kmalloc(unsigned long size, unsigned long flags)
     }
     // 寻找一块可用的内存对象
     int md;
-    kdebug("slab_obj_ptr->count_free=%d", slab_obj_ptr->count_free);
     for (int i = 0; i < slab_obj_ptr->bmp_count; ++i)
     {
+
         // 当前bmp全部被使用
-        if (*slab_obj_ptr->bmp + (i >> 6) == 0xffffffffffffffffUL)
+        if (*(slab_obj_ptr->bmp + (i >> 6)) == 0xffffffffffffffffUL)
         {
             i += 63;
             continue;
         }
         md = i % 64;
-
         // 找到相应的内存对象
         if ((*(slab_obj_ptr->bmp + (i >> 6)) & (1UL << md)) == 0)
         {

run.sh

@@ -12,7 +12,7 @@ if [ ! "$1" == "--nobuild" ]; then
     make clean
 fi
 
-IA32_USE_QEMU=0
+IA32_USE_QEMU=1
 bochsrc="./bochsrc"
 ARCH="x86_64"
 
@@ -92,7 +92,7 @@ if [ $flag_can_run -eq 1 ]; then
   if [ ${IA32_USE_QEMU} == 0 ]; then
         bochs -q -f ${bochsrc} -rc ./tools/bochsinit
     else
-        qemu-system-x86_64 -cdrom ${iso} -m 128M \
+        qemu-system-x86_64 -cdrom ${iso} -m 512M \
         -monitor telnet::2333,server,nowait -serial stdio -s
     fi
 else