| /SPARTAN/trunk/arch/ia32/include/pm.h |
|---|
| 129,8 → 129,8 |
| } __attribute__ ((packed)); |
| extern struct ptr_16_32 gdtr; |
| extern struct ptr_16_32 bsp_bootstrap_gdtr; |
| extern struct ptr_16_32 ap_bootstrap_gdtr; |
| extern struct ptr_16_32 real_bootstrap_gdtr; |
| extern struct ptr_16_32 protected_bootstrap_gdtr; |
| extern struct tss *tss_p; |
| extern struct descriptor gdt[]; |
| /SPARTAN/trunk/arch/ia32/src/pm.c |
|---|
| 70,8 → 70,8 |
| struct tss *tss_p = NULL; |
| /* gdtr is changed by kmp before next CPU is initialized */ |
| struct ptr_16_32 bsp_bootstrap_gdtr __attribute__ ((section ("K_DATA_START"))) = { .limit = sizeof(gdt), .base = KA2PA((__address) gdt - BOOT_OFFSET) }; |
| struct ptr_16_32 ap_bootstrap_gdtr __attribute__ ((section ("K_DATA_START"))) = { .limit = sizeof(gdt), .base = KA2PA((__address) gdt) }; |
| struct ptr_16_32 real_bootstrap_gdtr __attribute__ ((section ("K_DATA_START"))) = { .limit = sizeof(gdt), .base = KA2PA((__address) gdt - BOOT_OFFSET) }; |
| struct ptr_16_32 protected_bootstrap_gdtr = { .limit = sizeof(gdt), .base = KA2PA((__address) gdt) }; |
| struct ptr_16_32 gdtr = { .limit = sizeof(gdt), .base = (__address) gdt }; |
| void gdt_setbase(struct descriptor *d, __address base) |
| /SPARTAN/trunk/arch/ia32/src/smp/smp.c |
|---|
| 144,7 → 144,7 |
| memcpy(gdt_new, gdt, GDT_ITEMS*sizeof(struct descriptor)); |
| memsetb((__address)(&gdt_new[TSS_DES]), sizeof(struct descriptor), 0); |
| ap_bootstrap_gdtr.base = KA2PA((__address) gdt_new); |
| real_bootstrap_gdtr.base = KA2PA((__address) gdt_new); |
| gdtr.base = (__address) gdt_new; |
| if (l_apic_send_init_ipi(ops->cpu_apic_id(i))) { |
| /SPARTAN/trunk/arch/ia32/src/smp/ap.S |
|---|
| 50,11 → 50,11 |
| xorw %ax, %ax |
| movw %ax, %ds |
| lgdt ap_bootstrap_gdtr # initialize Global Descriptor Table register |
| lgdt real_bootstrap_gdtr # initialize Global Descriptor Table register |
| movl %cr0, %eax |
| orl $1, %eax |
| movl %eax, %cr0 # switch to protected mode |
| movl %eax, %cr0 # switch to protected mode |
| jmpl $KTEXT, $jump_to_kernel |
| jump_to_kernel: |
| /SPARTAN/trunk/arch/ia32/src/boot/boot.S |
|---|
| 52,7 → 52,7 |
| call memmap_arch_init |
| lgdt bsp_bootstrap_gdtr # initialize Global Descriptor Table register |
| lgdt real_bootstrap_gdtr # initialize Global Descriptor Table register |
| movl %cr0, %eax |
| orl $0x1, %eax |
| 93,27 → 93,29 |
| cld |
| rep movsb |
| jmp protected |
| call main_bsp # never returns |
| cli |
| hlt |
| multiboot_image_start: |
| movl BOOTSTRAP_OFFSET - 0x400, %esp # initialize stack pointer |
| movl $BOOTSTRAP_OFFSET - 0x400, %esp # initialize stack pointer |
| lgdt gdtr # initialize Global Descriptor Table register |
| lgdt protected_bootstrap_gdtr - 0x80000000 # initialize Global Descriptor Table register |
| movw $KDATA, %ax |
| movw %ax, %es |
| movw %ax, %gs |
| movw %ax, %fs |
| movw %ax, %ds # kernel data + stack |
| movw %ax, %ds # kernel data + stack |
| movw %ax, %ss |
| jmpl $KTEXT, $multiboot_meeting_point |
| jmpl $KTEXT, $multiboot_meeting_point + BOOT_OFFSET |
| multiboot_meeting_point: |
| call map_kernel # map kernel and turn paging on |
| call map_kernel # map kernel and turn paging on |
| protected: |
| call main_bsp # never returns |
| call main_bsp - BOOT_OFFSET # never returns |
| cli |
| hlt |
| /SPARTAN/trunk/arch/ia32/Makefile.inc.cross |
|---|
| 6,7 → 6,11 |
| CC=$(IA-32_CC_DIR)/$(IA-32_TARGET)-gcc |
| AS=$(IA-32_BINUTILS_DIR)/$(IA-32_TARGET)-as |
| LD=$(IA-32_BINUTILS_DIR)/$(IA-32_TARGET)-ld |
| OBJCOPY=$(IA-32_BINUTILS_DIR)/$(IA-32_TARGET)-objcopy |
| BFD_NAME=elf32-i386 |
| BFD_ARCH=i386 |
| DEFS:=-DARCH=$(ARCH) |
| ifdef SMP |