change(security): disable Key Manager support on ESP32-C5/P4/S31

The Key Manager hardware peripheral in its current form needs further
design changes before it can be offered as a production feature.
Until a revised peripheral design is available, withdraw ESP-IDF
support for it on all Key Manager capable targets.

components/esp_hw_support/include/esp_crypto_lock.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -122,7 +122,7 @@ void esp_crypto_ecdsa_lock_acquire(void);
 void esp_crypto_ecdsa_lock_release(void);
 #endif /* SOC_ECDSA_SUPPORTED */
 
-#ifdef SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 /**
  * @brief Acquire lock for Key Manager peripheral
  *
@@ -134,7 +134,7 @@ void esp_crypto_key_manager_lock_acquire(void);
  *
  */
 void esp_crypto_key_manager_lock_release(void);
-#endif /* SOC_KEY_MANAGER_SUPPORTED */
+#endif /* SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT */
 
 #ifdef __cplusplus
 }

components/esp_rom/esp32c5/include/esp32c5/rom/key_mgr.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,7 +8,6 @@
 
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
 
 #include "rom/ets_sys.h"
 #include "esp_attr.h"
@@ -112,4 +111,3 @@ struct km_deploy_ops {
 #if __cplusplus
 }
 #endif
-#endif

components/esp_rom/esp32c5/include/esp32c5/rom/km.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,7 +8,6 @@
 #define _KM_H
 
 #include "soc/soc_caps.h"
-#if SOC_KEY_MANAGER_SUPPORTED
 
 #include <stdint.h>
 #include "soc/soc.h"
@@ -58,6 +57,5 @@ int esp_rom_km_huk_risk(void);
 #ifdef __cplusplus
 }
 #endif
-#endif /* SOC_KEY_MANAGER_SUPPORTED */
 
 #endif /* _KM_H */

components/esp_rom/esp32p4/include/esp32p4/rom/key_mgr.h

@@ -7,7 +7,6 @@
 
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
 #include <stdint.h>
 #include "esp_attr.h"
 #include "ets_sys.h"
@@ -109,4 +108,3 @@ struct km_deploy_ops {
 #if __cplusplus
 }
 #endif
-#endif

components/esp_rom/esp32p4/include/esp32p4/rom/km.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,7 +8,6 @@
 #define _KM_H
 
 #include "soc/soc_caps.h"
-#if SOC_KEY_MANAGER_SUPPORTED
 
 #include <stdint.h>
 #include "soc/soc.h"
@@ -58,6 +57,5 @@ int esp_rom_km_huk_risk(void);
 #ifdef __cplusplus
 }
 #endif
-#endif
 
 #endif /* _KM_H */

components/esp_security/include/esp_key_mgr.h

@@ -8,7 +8,7 @@
 #include "esp_err.h"
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 
 #ifdef __cplusplus
 extern "C" {

components/esp_security/src/esp_crypto_lock.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -52,10 +52,10 @@ static _lock_t s_crypto_ecdsa_lock;
 #endif /* SOC_ECDSA_USES_MPI */
 #endif /* SOC_ECDSA_SUPPORTED */
 
-#ifdef SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 /* Lock for Key Manager peripheral */
 static _lock_t s_crypto_key_manager_lock;
-#endif /* SOC_KEY_MANAGER_SUPPORTED */
+#endif /* SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT */
 
 #ifdef SOC_HMAC_SUPPORTED
 void esp_crypto_hmac_lock_acquire(void)
@@ -159,7 +159,7 @@ void esp_crypto_ecdsa_lock_release(void)
 }
 #endif /* SOC_ECDSA_SUPPORTED */
 
-#ifdef SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 void esp_crypto_key_manager_lock_acquire(void)
 {
     _lock_acquire(&s_crypto_key_manager_lock);
@@ -169,7 +169,7 @@ void esp_crypto_key_manager_lock_release(void)
 {
     _lock_release(&s_crypto_key_manager_lock);
 }
-#endif /* SOC_KEY_MANAGER_SUPPORTED */
+#endif /* SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT */
 #else /* NON_OS_BUILD */
 #ifdef SOC_HMAC_SUPPORTED
 void esp_crypto_hmac_lock_acquire(void) {}
@@ -213,9 +213,9 @@ void esp_crypto_ecdsa_lock_acquire(void) {}
 void esp_crypto_ecdsa_lock_release(void) {}
 #endif /* SOC_ECDSA_SUPPORTED */
 
-#ifdef SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 void esp_crypto_key_manager_lock_acquire(void) {}
 
 void esp_crypto_key_manager_lock_release(void) {}
-#endif /* SOC_KEY_MANAGER_SUPPORTED */
+#endif /* SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT */
 #endif /* !NON_OS_BUILD */

components/esp_security/src/esp_crypto_periph_clk.c

@@ -30,7 +30,7 @@
 #if SOC_ECDSA_SUPPORTED
 #include "hal/ecdsa_ll.h"
 #endif
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 #include "hal/key_mgr_ll.h"
 #endif
 /* Crypto DMA, shared between AES and SHA */
@@ -140,7 +140,7 @@ void esp_crypto_ecdsa_enable_periph_clk(bool enable)
 }
 #endif
 
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 void esp_crypto_key_mgr_enable_periph_clk(bool enable)
 {
     KEY_MANAGER_RCC_ATOMIC() {

components/esp_security/src/esp_key_mgr.c

@@ -23,7 +23,6 @@
 #include "rom/key_mgr.h"
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
 static const char *TAG = "esp_key_mgr";
 
 static _lock_t s_key_mgr_ecdsa_key_lock;
@@ -905,4 +904,3 @@ cleanup:
     esp_key_mgr_release_hardware(true);
     return esp_ret;
 }
-#endif

components/hal/CMakeLists.txt

@@ -26,8 +26,11 @@ if(CONFIG_SOC_WDT_SUPPORTED AND NOT CONFIG_HAL_WDT_USE_ROM_IMPL)
     list(APPEND srcs "wdt_hal_iram.c")
 endif()
 
-if(CONFIG_SOC_KEY_MANAGER_SUPPORTED)
+if(CONFIG_SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT)
     list(APPEND srcs "key_mgr_hal.c")
+endif()
+
+if(CONFIG_SOC_HUK_SUPPORTED)
     list(APPEND srcs "huk_hal.c")
 endif()
 

components/hal/ecdsa_hal.c

@@ -38,7 +38,7 @@ static void configure_ecdsa_periph(ecdsa_hal_config_t *conf)
         key_mgr_hal_set_key_usage(ESP_KEY_MGR_ECDSA_KEY, ESP_KEY_MGR_USE_EFUSE_KEY);
 #endif
     }
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_ECDSA_KEY_DEPLOY
     else {
         if (!key_mgr_ll_is_supported()) {
             HAL_ASSERT(false && "Key manager is not supported");

components/hal/esp32c5/include/hal/huk_ll.h

@@ -13,7 +13,7 @@
 
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_HUK_SUPPORTED
 
 #include <stdint.h>
 #include <stdbool.h>

components/hal/esp32p4/include/hal/huk_ll.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -13,7 +13,7 @@
 
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_HUK_SUPPORTED
 
 #include <stdint.h>
 #include <stdbool.h>

components/hal/huk_hal.c

@@ -15,7 +15,7 @@
 #include "esp_err.h"
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_HUK_SUPPORTED
 esp_huk_state_t huk_hal_get_state(void)
 {
     return huk_ll_get_state();

components/hal/include/hal/huk_types.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -7,7 +7,7 @@
 
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_HUK_SUPPORTED
 
 #include "esp_assert.h"
 #include "rom/km.h"

components/hal/include/hal/key_mgr_hal.h

@@ -9,7 +9,7 @@
 
 #include "soc/soc_caps.h"
 
-#if SOC_KEY_MANAGER_SUPPORTED
+#if SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
 #include "hal/key_mgr_types.h"
 
 #ifdef __cplusplus
@@ -138,4 +138,4 @@ void key_mgr_hal_set_date_info(const uint32_t date_info);
 #ifdef __cplusplus
 }
 #endif
-#endif /* SOC_KEY_MANAGER_SUPPORTED */
+#endif /* SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT */

components/hal/test_apps/crypto/main/Kconfig.projbuild

@@ -46,8 +46,11 @@ menu "Test App Configuration"
         bool
         default n if IDF_TARGET_ESP32P4 && ESP32P4_SELECTS_REV_LESS_V3
         default y
-        depends on SOC_KEY_MANAGER_SUPPORTED
+        depends on SOC_KEY_MANAGER_SUPPORT_KEY_DEPLOYMENT
         help
             A hidden config to determine if the Key Manager tests should be included.
+            The tests build the esp_key_mgr driver from source so that the Key Manager
+            hardware stays covered by CI even on targets where IDF does not support
+            the Key Manager (SOC_KEY_MANAGER_SUPPORTED = 0).
 
 endmenu

components/soc/esp32c5/include/soc/Kconfig.soc_caps.in

@@ -245,7 +245,7 @@ config SOC_RNG_SUPPORTED
 
 config SOC_KEY_MANAGER_SUPPORTED
     bool
-    default y
+    default n
 
 config SOC_HUK_SUPPORTED
     bool

components/soc/esp32c5/include/soc/soc_caps.h

@@ -77,7 +77,7 @@
 #define SOC_SPI_FLASH_SUPPORTED         1     // TODO: [ESP32C5] IDF-8715
 #define SOC_ECDSA_SUPPORTED             1
 #define SOC_RNG_SUPPORTED               1
-#define SOC_KEY_MANAGER_SUPPORTED       1
+#define SOC_KEY_MANAGER_SUPPORTED       0
 #define SOC_HUK_SUPPORTED               1
 #define SOC_MODEM_CLOCK_SUPPORTED       1
 #define SOC_LIGHT_SLEEP_SUPPORTED       1

components/soc/esp32p4/include/soc/Kconfig.soc_caps.in

@@ -209,7 +209,7 @@ config SOC_ECDSA_SUPPORTED
 
 config SOC_KEY_MANAGER_SUPPORTED
     bool
-    default y
+    default n
 
 config SOC_HUK_SUPPORTED
     bool

components/soc/esp32p4/include/soc/soc_caps.h

@@ -68,7 +68,7 @@
 #define SOC_ECC_SUPPORTED               1
 #define SOC_ECC_EXTENDED_MODES_SUPPORTED   1
 #define SOC_ECDSA_SUPPORTED             1
-#define SOC_KEY_MANAGER_SUPPORTED       1
+#define SOC_KEY_MANAGER_SUPPORTED       0
 #define SOC_HUK_SUPPORTED               1
 #define SOC_FLASH_ENC_SUPPORTED         1
 #define SOC_SECURE_BOOT_SUPPORTED       1