feat(esp_tee): Support for ESP-TEE - riscv component

components/riscv/interrupt_plic.c

@@ -4,7 +4,10 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 #include <stdbool.h>
+#include "soc/soc_caps.h"
+#include "riscv/csr.h"
 #include "riscv/interrupt.h"
+#include "riscv/rv_utils.h"
 #include "esp_private/interrupt_plic.h"
 #include "hal/interrupt_plic_ll.h"
 
@@ -18,19 +21,35 @@ void intr_matrix_route(int intr_src, int intr_num)
 
 uint32_t esprv_get_interrupt_unmask(void)
 {
-    return interrupt_plic_ll_get_unmask();
+    if (IS_PRV_M_MODE()) {
+        return REG_READ(PLIC_MXINT_ENABLE_REG);
+    } else {
+        return REG_READ(PLIC_UXINT_ENABLE_REG);
+    }
 }
 
 
 enum intr_type esprv_int_get_type(int rv_int_num)
 {
-    return interrupt_plic_ll_get_type(rv_int_num) ? INTR_TYPE_EDGE : INTR_TYPE_LEVEL;
+    uint32_t intr_type_reg;
+
+    if (IS_PRV_M_MODE()) {
+        intr_type_reg = REG_READ(PLIC_MXINT_TYPE_REG);
+    } else {
+        intr_type_reg = REG_READ(PLIC_UXINT_TYPE_REG);
+    }
+
+    return (intr_type_reg & (1 << rv_int_num)) ? INTR_TYPE_EDGE : INTR_TYPE_LEVEL;
 }
 
 
 int esprv_int_get_priority(int rv_int_num)
 {
-    return interrupt_plic_ll_get_priority(rv_int_num);
+    if (IS_PRV_M_MODE()) {
+        return REG_READ(PLIC_MXINT0_PRI_REG + (rv_int_num) * 4);
+    } else {
+        return REG_READ(PLIC_UXINT0_PRI_REG + (rv_int_num) * 4);
+    }
 }
 
 
@@ -38,3 +57,44 @@ bool esprv_int_is_vectored(int rv_int_num)
 {
     return true;
 }
+
+
+#if CONFIG_SECURE_ENABLE_TEE && !ESP_TEE_BUILD
+DRAM_ATTR esprv_int_mgmt_t esp_tee_intr_sec_srv_cb = NULL;
+
+void esprv_int_setup_mgmt_cb(void *fptr)
+{
+    esp_tee_intr_sec_srv_cb = (esprv_int_mgmt_t)fptr;
+}
+
+
+/* NOTE: Overriding ROM-based interrupt configuration symbols */
+void esprv_int_enable(uint32_t unmask)
+{
+    rv_utils_intr_enable(unmask);
+}
+
+
+void esprv_int_disable(uint32_t mask)
+{
+    rv_utils_intr_disable(mask);
+}
+
+
+void esprv_int_set_type(int intr_num, enum intr_type type)
+{
+    rv_utils_intr_set_type(intr_num, type);
+}
+
+
+void esprv_int_set_priority(int rv_int_num, int priority)
+{
+    rv_utils_intr_set_priority(rv_int_num, priority);
+}
+
+
+void esprv_int_set_threshold(int priority_threshold)
+{
+    rv_utils_intr_set_threshold(priority_threshold);
+}
+#endif