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Code Issues Releases Activity

Reintroduce unmap_* in package2.c

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TuxSH 2018-03-02 07:33:47 +01:00
parent 78bee60485
commit cad9cdc6e0
1 changed files with 17 additions and 8 deletions
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25
exosphere/src/package2.c
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@ -340,21 +340,30 @@ static void sync_with_nx_bootloader(int state) {
}
}
static void identity_unmap_iram_cd(void) {
static void identity_unmap_iram_cd_tzram(void) {
/* See also: configure_ttbls (in coldboot_init.c). */
uintptr_t *mmu_l1_tbl = (uintptr_t *)(TZRAM_GET_SEGMENT_PA(TZRAM_SEGEMENT_ID_SECMON_EVT) + 0x800 - 64);
uintptr_t *mmu_l2_tbl = (uintptr_t *)TZRAM_GET_SEGMENT_PA(TZRAM_SEGMENT_ID_L2_TRANSLATION_TABLE);
uintptr_t *mmu_l3_tbl = (uintptr_t *)TZRAM_GET_SEGMENT_PA(TZRAM_SEGMENT_ID_L3_TRANSLATION_TABLE);
uintptr_t *mmu_l1_tbl = (uintptr_t *)(TZRAM_GET_SEGMENT_ADDRESS(TZRAM_SEGEMENT_ID_SECMON_EVT) + 0x800 - 64);
uintptr_t *mmu_l2_tbl = (uintptr_t *)TZRAM_GET_SEGMENT_ADDRESS(TZRAM_SEGMENT_ID_L2_TRANSLATION_TABLE);
uintptr_t *mmu_l3_tbl = (uintptr_t *)TZRAM_GET_SEGMENT_ADDRESS(TZRAM_SEGMENT_ID_L3_TRANSLATION_TABLE);
mmu_unmap_range(3, mmu_l3_tbl, IDENTITY_GET_MAPPING_ADDRESS(IDENTITY_MAPPING_IRAM_CD), IDENTITY_GET_MAPPING_SIZE(IDENTITY_MAPPING_IRAM_CD));
mmu_unmap_range(3, mmu_l3_tbl, IDENTITY_GET_MAPPING_ADDRESS(IDENTITY_MAPPING_TZRAM), IDENTITY_GET_MAPPING_SIZE(IDENTITY_MAPPING_TZRAM));
mmu_unmap(2, mmu_l2_tbl, 0x40000000);
mmu_unmap(2, mmu_l2_tbl, 0x7C000000);
mmu_unmap(1, mmu_l1_tbl, 0x40000000);
tlb_invalidate_all_inner_shareable();
}
static void indentity_unmap_dram(void) {
uintptr_t *mmu_l1_tbl = (uintptr_t *)(TZRAM_GET_SEGMENT_ADDRESS(TZRAM_SEGEMENT_ID_SECMON_EVT) + 0x800 - 64);
mmu_unmap_range(1, mmu_l1_tbl, IDENTITY_GET_MAPPING_ADDRESS(IDENTITY_MAPPING_DRAM), IDENTITY_GET_MAPPING_SIZE(IDENTITY_MAPPING_DRAM));
tlb_invalidate_all_inner_shareable();
}
uintptr_t get_pk2ldr_stack_address(void) {
return TZRAM_GET_SEGMENT_ADDRESS(TZRAM_SEGMENT_ID_PK2LDR) + 0x2000;
}
@ -399,8 +408,8 @@ void load_package2(coldboot_crt0_reloc_list_t *reloc_list) {
/* Synchronize with NX BOOTLOADER. */
sync_with_nx_bootloader(NX_BOOTLOADER_STATE_LOADED_PACKAGE2);
/* Remove the identity mapping for iRAM-C+D */
identity_unmap_iram_cd();
/* Remove the identity mapping for iRAM-C+D & TZRAM */
identity_unmap_iram_cd_tzram();
/* Load header from NX_BOOTLOADER-initialized DRAM. */
package2_header_t header;
@ -424,8 +433,8 @@ void load_package2(coldboot_crt0_reloc_list_t *reloc_list) {
/* Set CORE0 entrypoint for Package2. */
set_core_entrypoint_and_argument(0, DRAM_BASE_PHYSICAL + header.metadata.entrypoint, 0);
/* Remove the DRAM identity mapping. TODO: Should we bother? */
/* indentity_unmap_dram(); */
/* Remove the DRAM identity mapping. */
indentity_unmap_dram();
/* Synchronize with NX BOOTLOADER. */
sync_with_nx_bootloader(NX_BOOTLOADER_STATE_FINISHED);