docs(esp_psram): document MALLOC_CAP_SPIRAM_NO_ENC carve-out

Extends the External RAM encryption section to describe
CONFIG_SPIRAM_ENC_EXEMPT and the MALLOC_CAP_SPIRAM_NO_ENC heap
capability, including a security warning and a typical DMA-alignment
use case. Mirrors the change in zh_CN.
This commit is contained in:
Mahavir Jain
2026-05-21 20:54:30 +05:30
parent e7cd4a1500
commit 10d2d9cb9f
3 changed files with 45 additions and 1 deletions
+1 -1
View File
@@ -160,7 +160,7 @@ config SPIRAM_ALLOW_NOINIT_SEG_EXTERNAL_MEMORY
config SPIRAM_ENC_EXEMPT
bool "Reserve a PSRAM region exempt from encryption"
default n
depends on SPIRAM && SECURE_FLASH_ENC_ENABLED && SOC_PSRAM_ENCRYPTION_PAGE_CONFIGURABLE
depends on SPIRAM && SOC_PSRAM_ENCRYPTION_PAGE_CONFIGURABLE
help
!!! SECURITY WARNING !!!