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Code Issues Releases Activity

Fix latest commit and set MAILBOX_NX_SECMON_BOOT_TIME

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TuxSH 2018-03-04 00:36:40 +01:00
parent 58036dac0b
commit ca80408349
2 changed files with 33 additions and 9 deletions
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40
exosphere/src/coldboot_init.c
View file

@ -3,12 +3,16 @@
#include "mmu.h"
#include "memory_map.h"
#include "arm.h"
#include "package2.h"
#include "timers.h"
#undef MAILBOX_NX_BOOTLOADER_BASE
#undef TIMERS_BASE
#define MAILBOX_NX_BOOTLOADER_BASE (MMIO_GET_DEVICE_PA(MMIO_DEVID_NXBOOTLOADER_MAILBOX))
#define TIMERS_BASE (MMIO_GET_DEVICE_PA(MMIO_DEVID_TMRs_WDTs))
extern const uint8_t __start_cold[];
/* warmboot_init.c */
void set_memory_registers_enable_mmu(void);
static void identity_map_all_mappings(uintptr_t *mmu_l1_tbl, uintptr_t *mmu_l3_tbl) {
static const uintptr_t addrs[] = { TUPLE_FOLD_LEFT_0(EVAL(IDENTIY_MAPPING_ID_MAX), _MMAPID, COMMA) };
static const size_t sizes[] = { TUPLE_FOLD_LEFT_1(EVAL(IDENTIY_MAPPING_ID_MAX), _MMAPID, COMMA) };
@ -93,14 +97,18 @@ static void configure_ttbls(void) {
tzram_map_all_segments(mmu_l3_tbl);
}
static void translate_warmboot_func_list(coldboot_crt0_reloc_list_t *reloc_list, boot_func_list_t *func_list) {
static void translate_func_list(coldboot_crt0_reloc_list_t *reloc_list, boot_func_list_t *func_list, bool in_tzram) {
coldboot_crt0_reloc_t *warmboot_crt0_reloc = &reloc_list->relocs[0];
coldboot_crt0_reloc_t *main_reloc = &reloc_list->relocs[reloc_list->nb_relocs_pre_mmu_init];
/* The main segment immediately follows the warmboot crt0 in TZRAM, in the same page. */
uintptr_t main_pa;
if (in_tzram) {
/* The main segment immediately follows the warmboot crt0 in TZRAM, in the same page. */
main_pa = (uintptr_t)warmboot_crt0_reloc->vma | ((uintptr_t)main_reloc->vma & 0xFFF);
} else {
main_pa = reloc_list->reloc_base + main_reloc->reloc_offset;
}
uintptr_t main_pa = (uintptr_t)warmboot_crt0_reloc->vma | ((uintptr_t)main_reloc->vma & 0xFFF);
for(size_t i = 0; i < func_list->nb_funcs; i++) {
if(func_list->addrs[i] >= 0x1F0000000ull) {
func_list->addrs[i] = main_pa + func_list->addrs[i] - (uintptr_t)main_reloc->vma;
@ -123,8 +131,23 @@ uintptr_t get_coldboot_crt0_stack_address(void) {
}
void coldboot_init(coldboot_crt0_reloc_list_t *reloc_list, boot_func_list_t *func_list, boot_func_list_t *func_list_warmboot) {
MAILBOX_NX_SECMON_BOOT_TIME = TIMERUS_CNTR_1US_0;
/* Custom approach */
reloc_list->reloc_base = (uintptr_t)__start_cold;
translate_func_list(reloc_list, func_list, false);
/*
From https://events.static.linuxfound.org/sites/events/files/slides/slides_17.pdf :
Caches may write back dirty lines at any time:
- To make space for new allocations
- Even if MMU is off
- Even if Cacheable accesses are disabled (caches are never 'off')
It should be fine to clear that here and not before.
*/
func_list->funcs.flush_dcache_all();
func_list->funcs.invalidate_icache_all();
/* TODO: Set NX BOOTLOADER clock time field */
@ -133,7 +156,6 @@ void coldboot_init(coldboot_crt0_reloc_list_t *reloc_list, boot_func_list_t *fun
do_relocation(reloc_list, i);
}
/* At this point, we can (and will) access functions located in .warm_crt0 */
translate_warmboot_func_list(reloc_list, func_list);
/* Initialize DMA controllers, and write to AHB_GIZMO_TZRAM. */
/* TZRAM accesses should work normally after this point. */
@ -151,5 +173,5 @@ void coldboot_init(coldboot_crt0_reloc_list_t *reloc_list, boot_func_list_t *fun
func_list->funcs.invalidate_icache_all();
/* At this point we can access all the mapped segments (all other functions, data...) normally */
*func_list_warmboot = *func_list;
translate_func_list(reloc_list, func_list_warmboot, true);
}

2
exosphere/src/package2.h
View file

@ -14,6 +14,8 @@ static inline uintptr_t get_nx_bootloader_mailbox_base(void) {
#define MAILBOX_NX_BOOTLOADER_BASE (get_nx_bootloader_mailbox_base())
#define MAILBOX_NX_SECMON_BOOT_TIME MAKE_REG32(MAILBOX_NX_BOOTLOADER_BASE + 0xE08ull)
#define MAILBOX_NX_BOOTLOADER_SETUP_STATE MAKE_REG32(MAILBOX_NX_BOOTLOADER_BASE + 0xEF8ull)
#define NX_BOOTLOADER_STATE_INIT 0