Laukik Hase
873409da6b
- Remove `mret` for jumping to the service call dispatcher; instead, enable interrupts and execute directly - Fix potential corruption of the `t3` register when returning from a service call - Simplify the secure service dispatcher function
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdarg.h>
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#include "esp_tee.h"
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/* U-mode interrupt handler */
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extern int _tee_interrupt_handler(void);
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/* U-to-M mode switch */
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extern uint32_t _u2m_switch(int argc, va_list ap);
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/* REE IRAM end */
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extern uint32_t _iram_end;
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/* REE IROM end */
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extern uint32_t _instruction_reserved_end;
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/* REE DROM start */
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extern uint32_t _rodata_reserved_start;
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/* REE DROM end */
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extern uint32_t _rodata_reserved_end;
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esp_tee_config_t esp_tee_app_config __attribute__((section(".esp_tee_app_cfg"))) = {
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.magic_word = ESP_TEE_APP_CFG_MAGIC,
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.api_major_version = ESP_TEE_API_MAJOR_VER,
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.api_minor_version = ESP_TEE_API_MINOR_VER,
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/* s_intr_handler is NULL in the REE image, but will be written by
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* the TEE before it loads the binary
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*/
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.ns_int_handler = &_tee_interrupt_handler,
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.ns_entry_addr = &_u2m_switch,
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.ns_iram_end = &_iram_end,
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.ns_irom_end = &_instruction_reserved_end,
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.ns_drom_start = &_rodata_reserved_start,
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.ns_drom_end = &_rodata_reserved_end,
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};
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