Index: src/cpu/x86/lapic/lapic_cpu_init.c =================================================================== --- src/cpu/x86/lapic/lapic_cpu_init.c (revision 5180) +++ src/cpu/x86/lapic/lapic_cpu_init.c (working copy) @@ -246,26 +246,8 @@ index = ++last_cpu_index; /* Find end of the new processors stack */ -#if (CONFIG_RAMTOP>0x100000) && (CONFIG_RAMBASE < 0x100000) && ((CONFIG_CONSOLE_VGA==1) || (CONFIG_PCI_ROM_RUN == 1)) - if(index<1) { // only keep bsp on low - stack_end = ((unsigned long)_estack) - (CONFIG_STACK_SIZE*index) - sizeof(struct cpu_info); - } else { - // for all APs, let use stack after pgtbl, 20480 is the pgtbl size for every cpu - stack_end = 0x100000+(20480 + CONFIG_STACK_SIZE)*CONFIG_MAX_CPUS - (CONFIG_STACK_SIZE*index); -#if (0x100000+(20480 + CONFIG_STACK_SIZE)*CONFIG_MAX_CPUS) > (CONFIG_RAMTOP) - #warning "We may need to increase CONFIG_RAMTOP, it need to be more than (0x100000+(20480 + CONFIG_STACK_SIZE)*CONFIG_MAX_CPUS)\n" -#endif - if(stack_end > (CONFIG_RAMTOP)) { - printk_debug("start_cpu: Please increase the CONFIG_RAMTOP more than %luK\n", stack_end); - die("Can not go on\n"); - } - stack_end -= sizeof(struct cpu_info); - } -#else stack_end = ((unsigned long)_estack) - (CONFIG_STACK_SIZE*index) - sizeof(struct cpu_info); -#endif - /* Record the index and which cpu structure we are using */ info = (struct cpu_info *)stack_end; info->index = index; Index: src/mainboard/technexion/tim5690/Kconfig =================================================================== --- src/mainboard/technexion/tim5690/Kconfig (revision 5180) +++ src/mainboard/technexion/tim5690/Kconfig (working copy) @@ -127,5 +127,5 @@ config RAMBASE hex - default 0x4000 + default 0x100000 depends on BOARD_TECHNEXION_TIM5690 Index: src/arch/i386/coreboot_ram.ld =================================================================== --- src/arch/i386/coreboot_ram.ld (revision 5180) +++ src/arch/i386/coreboot_ram.ld (working copy) @@ -100,11 +100,14 @@ _ebss = .; _end = .; . = ALIGN(CONFIG_STACK_SIZE); + + /* We require RAMBASE to be at least 1MB for SMP, to avoid writing into a-seg - f-seg */ + _bogus = ASSERT(CONFIG_MAX_CPUS == 1 || CONFIG_RAMBASE >= 0x100000, "Please move RAMBASE to 1MB"); + _stack = .; .stack . : { /* Reserve a stack for each possible cpu */ - /* the stack for ap will be put after pgtbl in 1M to CONFIG_RAMTOP range when VGA and ROM_RUN and CONFIG_RAMTOP>1M*/ - . += ((CONFIG_CONSOLE_VGA || CONFIG_PCI_ROM_RUN)&&(CONFIG_RAMBASE<0x100000)&&(CONFIG_RAMTOP>0x100000) ) ? CONFIG_STACK_SIZE : (CONFIG_MAX_CPUS*CONFIG_STACK_SIZE); + . += CONFIG_MAX_CPUS*CONFIG_STACK_SIZE; } _estack = .; _heap = .;