| /SPARTAN/trunk/arch/amd64/src/asm_utils.S |
|---|
| 44,6 → 44,39 |
| movq $halt, (%rsp) |
| jmp printf |
| .global has_cpuid |
| .global rdtsc |
| ## Determine CPUID support |
| # |
| # Return 0 in EAX if CPUID is not support, 1 if supported. |
| # |
| has_cpuid: |
| pushq %rbx |
| pushfq # store flags |
| popq %rax # read flags |
| movq %rax,%rbx # copy flags |
| btcl $21,%ebx # swap the ID bit |
| pushq %rbx |
| popfq # propagate the change into flags |
| pushfq |
| popq %rbx # read flags |
| andl $(1<<21),%eax # interested only in ID bit |
| andl $(1<<21),%ebx |
| xorl %ebx,%eax # 0 if not supported, 1 if supported |
| popq %rbx |
| ret |
| rdtsc: |
| xorq %rax,%rax |
| rdtsc |
| ret |
| # Push all general purpose registers on stack except %rbp, %rsp |
| .macro push_all_gpr |
| pushq %rax |
| /SPARTAN/trunk/arch/amd64/src/boot/memmap.S |
|---|
| File deleted |
| /SPARTAN/trunk/arch/amd64/src/boot/boot.S |
|---|
| 33,7 → 33,7 |
| #include <arch/pm.h> |
| #define START_STACK 0x7c00 |
| #define START_STACK_64 $0xffffffff80007c00 |
| #define START_STACK_64 0xffffffff80007c00 |
| # |
| # This is where we require any SPARTAN-kernel-compatible boot loader |
| 51,9 → 51,9 |
| xorw %ax,%ax |
| movw %ax,%ds |
| movw %ax,%ss # initialize stack segment register |
| movl START_STACK,%esp # initialize stack pointer |
| movl $(START_STACK),%esp # initialize stack pointer |
| # call memmap_arch_init |
| call memmap_arch_init |
| movl $0x80000000, %eax |
| cpuid |
| 116,7 → 116,7 |
| .code64 |
| start64: |
| movq START_STACK_64, %rsp |
| movq $(START_STACK_64), %rsp |
| call main_bsp # never returns |
| 1: |
| /SPARTAN/trunk/arch/amd64/src/amd64.c |
|---|
| 38,6 → 38,7 |
| #include <arch/i8259.h> |
| #include <arch/bios/bios.h> |
| #include <arch/mm/memory_init.h> |
| void arch_pre_mm_init(void) |
| { |
| 64,3 → 65,21 |
| ega_init(); /* video */ |
| } |
| } |
| void arch_late_init(void) |
| { |
| if (config.cpu_active == 1) { |
| memory_print_map(); |
| #ifdef __SMP__ |
| acpi_init(); |
| #endif /* __SMP__ */ |
| } |
| } |
| void calibrate_delay_loop(void) |
| { |
| return; |
| i8254_calibrate_delay_loop(); |
| i8254_normal_operation(); |
| } |
| /SPARTAN/trunk/arch/amd64/src/dummy.s |
|---|
| 34,33 → 34,18 |
| .global cpu_arch_init |
| .global cpu_sleep |
| .global cpu_print_report |
| .global arch_late_init |
| .global calibrate_delay_loop |
| .global dummy |
| .global rdtsc |
| .global reset_TS_flag |
| .global fpu_init |
| .global memory_print_map |
| .global get_memory_size |
| get_memory_size: |
| movq $4*1024*1024, %rax |
| ret |
| rdtsc: |
| before_thread_runs_arch: |
| userspace: |
| calibrate_delay_loop: |
| cpu_identify: |
| cpu_arch_init: |
| cpu_sleep: |
| cpu_print_report: |
| arch_late_init: |
| calibrate_delay_loop: |
| reset_TS_flag: |
| fpu_init: |
| memory_print_map: |
| dummy: |
| 0: |