diff options
Diffstat (limited to 'src/cpu/x86/lapic/secondary.S')
| -rw-r--r-- | src/cpu/x86/lapic/secondary.S | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/cpu/x86/lapic/secondary.S b/src/cpu/x86/lapic/secondary.S index dc00b082e9..67e44c46df 100644 --- a/src/cpu/x86/lapic/secondary.S +++ b/src/cpu/x86/lapic/secondary.S @@ -2,7 +2,7 @@ #include <cpu/x86/lapic_def.h> .text - .globl _secondary_start, _secondary_start_end + .globl _secondary_start, _secondary_start_end, cpucount .balign 4096 _secondary_start: .code16 @@ -38,15 +38,25 @@ _secondary_start: /* Load the Interrupt descriptor table */ lidt idtarg - /* Set the stack pointer, and flag that we are done */ - xorl %eax, %eax - movl secondary_stack, %esp - movl %eax, secondary_stack + /* increment our cpu index */ + movl $1, %eax + lock xadd %eax, cpucount + incl %eax + movl %eax, %ecx + + /* assign stack for this specific cpu */ + mov _stack, %esp + mov $CONFIG_STACK_SIZE, %ebx + mul %ebx + add %eax, %esp + pushl %ecx call secondary_cpu_init 1: hlt jmp 1b +cpucount: + .long 1 gdtaddr: .word gdt_limit /* the table limit */ .long gdt /* we know the offset */ |