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feat(mt8188): update SVP region ID protection flow

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- Extend the SVP region number from 1 to 10
- Mapping one region each time

Change-Id: I2dd517127018c71174f3d52a2118463370caf569
Signed-off-by: Gavin Liu <gavin.liu@mediatek.com>
This commit is contained in:
Gavin Liu 2024-07-29 10:58:10 +08:00 • committed by Gavin Liu
parent 26f2f24c69
commit e66c4ea8ae
2 changed files with 8 additions and 5 deletions
plat/mediatek/drivers/emi_mpu/mt8188
emi_mpu.cemi_mpu_priv.h

8
plat/mediatek/drivers/emi_mpu/mt8188/emi_mpu.c
View file

@ -120,13 +120,13 @@ int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
{
uint64_t phys_addr = get_decoded_phys_addr(encoded_addr);
struct emi_region_info_t region_info;
enum MPU_REQ_ORIGIN_ZONE_ID zone_id = get_decoded_zone_id(zone_info);
enum region_ids zone_id = get_decoded_zone_id(zone_info);
uint32_t is_set = get_decoded_set_clear_info(zone_info);
INFO("encoded_addr = 0x%lx, zone_size = 0x%lx, zone_info = 0x%lx\n",
encoded_addr, zone_size, zone_info);
if (zone_id != MPU_REQ_ORIGIN_TEE_ZONE_SVP) {
if (zone_id < SVP_DRAM_REGION_ID_START || zone_id > SVP_DRAM_REGION_ID_END) {
ERROR("Invalid param %s, %d\n", __func__, __LINE__);
return MTK_SIP_E_INVALID_PARAM;
}
@ -135,7 +135,7 @@ int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
/* SVP DRAM */
region_info.start = phys_addr;
region_info.end = phys_addr + zone_size - 1;
region_info.region = SVP_DRAM_REGION_ID;
region_info.region = zone_id;
SET_ACCESS_PERMISSION(region_info.apc, UNLOCK,
FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
@ -144,7 +144,7 @@ int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
emi_mpu_set_protection(&region_info);
} else { /* clear region protection */
emi_mpu_clear_protection(SVP_DRAM_REGION_ID);
emi_mpu_clear_protection(zone_id);
}
return 0;

5
plat/mediatek/drivers/emi_mpu/mt8188/emi_mpu_priv.h
View file

@ -56,13 +56,16 @@
#define APUSYS_SEC_BUF_PA (0x55000000)
#define APUSYS_SEC_BUF_SZ (0x100000)
#define SVP_DRAM_REGION_COUNT (10)
enum region_ids {
BL31_EMI_REGION_ID = 0,
BL32_REGION_ID,
SCP_CORE0_REGION_ID,
SCP_CORE1_REGION_ID,
DSP_PROTECT_REGION_ID,
SVP_DRAM_REGION_ID,
SVP_DRAM_REGION_ID_START = 5,
SVP_DRAM_REGION_ID_END = SVP_DRAM_REGION_ID_START + SVP_DRAM_REGION_COUNT - 1,
APUSYS_SEC_BUF_EMI_REGION_ID = 21,