diff options
Diffstat (limited to 'bsps/i386/pc386/start/smp-imps.c')
| -rw-r--r-- | bsps/i386/pc386/start/smp-imps.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/bsps/i386/pc386/start/smp-imps.c b/bsps/i386/pc386/start/smp-imps.c index 58d9178f90..6480c0d25e 100644 --- a/bsps/i386/pc386/start/smp-imps.c +++ b/bsps/i386/pc386/start/smp-imps.c @@ -83,6 +83,7 @@ #include <assert.h> extern void _pc386_delay(void); +extern uint32_t* gdtdesc; /* #define KERNEL_PRINT(_format) printk(_format) */ @@ -258,10 +259,10 @@ boot_cpu(imps_processor *proc) * under the 1MB boundary. */ - uint32_t *reset; + volatile uint32_t *reset; bootaddr = (512-64)*1024; - reset= (uint32_t *)bootaddr; + reset= (volatile uint32_t *)bootaddr; memcpy( (char *) bootaddr, @@ -269,9 +270,14 @@ boot_cpu(imps_processor *proc) (size_t)_binary_appstart_bin_size ); + /* Pass start function, stack region and gdtdescr to AP + * see startAP.S for location */ reset[1] = (uint32_t)secondary_cpu_initialize; reset[2] = (uint32_t)_Per_CPU_Get_by_index(apicid)->interrupt_stack_high; - + memcpy( + (char*) &reset[3], + &gdtdesc, + 6); /* * Generic CPU startup sequence starts here. */ @@ -325,8 +331,6 @@ boot_cpu(imps_processor *proc) CMOS_WRITE_BYTE(CMOS_RESET_CODE, 0); *((volatile unsigned *) bios_reset_vector) = 0; - printk("\n"); - return success; } @@ -359,6 +363,7 @@ add_processor(imps_processor *proc) /* AP booted successfully, increase number of available cores */ imps_num_cpus++; + printk("#%d Application Processor (AP)\n", imps_apic_cpu_map[apicid]); } } |