feat(mt8195): add support for SMC from OP-TEE
- Add MTK_SIP_SMC_FROM_S_EL1_TABLE to handle the SMC call from OP-TEE.
- Register optee SMC ID for EMI MPU.
Change-Id: I924ea85d29d4113e92d8f3d411c0fb77daa0c205
diff --git a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c
index 794e21e..b6e5a2d 100644
--- a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c
+++ b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2021-2023, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -8,6 +8,7 @@
#include <common/debug.h>
#include <lib/mmio.h>
#include <emi_mpu.h>
+#include <mtk_sip_svc.h>
#if ENABLE_EMI_MPU_SW_LOCK
static unsigned char region_lock_state[EMI_MPU_REGION_NUM];
@@ -17,6 +18,7 @@
#define EMI_MPU_END_MASK (0x00FFFFFF)
#define EMI_MPU_APC_SW_LOCK_MASK (0x00FFFFFF)
#define EMI_MPU_APC_HW_LOCK_MASK (0x80FFFFFF)
+#define MPU_PHYSICAL_ADDR_SHIFT_BITS (16)
static int _emi_mpu_set_protection(unsigned int start, unsigned int end,
unsigned int apc)
@@ -139,7 +141,7 @@
/* Forbidden All */
region_info.start = 0x40000000ULL; /* dram base addr */
region_info.end = 0x1FFFF0000ULL;
- region_info.region = 4;
+ region_info.region = 5;
SET_ACCESS_PERMISSION(region_info.apc, 1,
FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
@@ -149,3 +151,42 @@
dump_emi_mpu_regions();
}
+
+static inline uint64_t get_decoded_phys_addr(uint64_t addr)
+{
+ return (addr << MPU_PHYSICAL_ADDR_SHIFT_BITS);
+}
+
+static inline uint32_t get_decoded_zone_id(uint32_t info)
+{
+ return ((info & 0xFFFF0000) >> MPU_PHYSICAL_ADDR_SHIFT_BITS);
+}
+
+int32_t emi_mpu_sip_handler(uint64_t encoded_addr, uint64_t zone_size, uint64_t zone_info)
+{
+ 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);
+
+ 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) {
+ ERROR("Invalid param %s, %d\n", __func__, __LINE__);
+ return MTK_SIP_E_INVALID_PARAM;
+ }
+
+ /* SVP DRAM */
+ region_info.start = phys_addr;
+ region_info.end = phys_addr + zone_size;
+ region_info.region = 4;
+ SET_ACCESS_PERMISSION(region_info.apc, 1,
+ FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
+ FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
+ FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
+ FORBIDDEN, FORBIDDEN, FORBIDDEN, SEC_RW);
+
+ emi_mpu_set_protection(®ion_info);
+
+ return 0;
+}
diff --git a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.h b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.h
index 415146e..83bd6de 100644
--- a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.h
+++ b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2021-2023, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -93,6 +93,15 @@
unsigned int apc[EMI_MPU_DGROUP_NUM];
};
+enum MPU_REQ_ORIGIN_ZONE_ID {
+ MPU_REQ_ORIGIN_TEE_ZONE_SVP = 0,
+ MPU_REQ_ORIGIN_TEE_ZONE_TUI = 1,
+ MPU_REQ_ORIGIN_TEE_ZONE_WFD = 2,
+ MPU_REQ_ORIGIN_TEE_ZONE_MAX = 3,
+ MPU_REQ_ORIGIN_ZONE_INVALID = 0x7FFFFFFF,
+};
+
void emi_mpu_init(void);
+int32_t emi_mpu_sip_handler(uint64_t encoded_addr, uint64_t zone_size, uint64_t zone_info);
#endif
diff --git a/plat/mediatek/mt8195/plat_sip_calls.c b/plat/mediatek/mt8195/plat_sip_calls.c
index 1cdd622..2debeff 100644
--- a/plat/mediatek/mt8195/plat_sip_calls.c
+++ b/plat/mediatek/mt8195/plat_sip_calls.c
@@ -1,11 +1,12 @@
/*
- * Copyright (c) 2020-2022, MediaTek Inc. All rights reserved.
+ * Copyright (c) 2020-2023, MediaTek Inc. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <common/debug.h>
#include <common/runtime_svc.h>
+#include <emi_mpu.h>
#include <mt_dp.h>
#include <mt_spm.h>
#include <mt_spm_vcorefs.h>
@@ -27,6 +28,11 @@
uint32_t ret_val;
switch (smc_fid) {
+ case MTK_SIP_TEE_MPU_PERM_SET_AARCH64:
+ case MTK_SIP_TEE_MPU_PERM_SET_AARCH32:
+ ret = emi_mpu_sip_handler(x1, x2, x3);
+ SMC_RET2(handle, ret, ret_val);
+ break;
case MTK_SIP_DP_CONTROL_AARCH32:
case MTK_SIP_DP_CONTROL_AARCH64:
ret = dp_secure_handler(x1, x2, &ret_val);