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bootloader: Create option for enabling memory region protection

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Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
This commit is contained in:
Gustavo Henrique Nihei 2022-05-02 10:37:19 -03:00
parent 4995e24199
commit 477d11e9c1
2 changed files with 10 additions and 0 deletions
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8
components/bootloader/Kconfig.projbuild
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@ -193,6 +193,14 @@ menu "Bootloader config"
The GPIO must be held low continuously for this period of time after reset The GPIO must be held low continuously for this period of time after reset
before a factory reset or test partition boot (as applicable) is performed. before a factory reset or test partition boot (as applicable) is performed.
config BOOTLOADER_REGION_PROTECTION_ENABLE
bool "Enable protection for unmapped memory regions"
default y
help
Protects the unmapped memory regions of the entire address space from unintended accesses.
This will ensure that an exception will be triggered whenever the CPU performs a memory
operation on unmapped regions of the address space.
config BOOTLOADER_WDT_ENABLE config BOOTLOADER_WDT_ENABLE
bool "Use RTC watchdog in start code" bool "Use RTC watchdog in start code"
default y default y

2
components/bootloader_support/src/bootloader_mem.c
View File

@ -17,6 +17,8 @@ void bootloader_init_mem(void)
{ {
cpu_hal_init_hwloop(); cpu_hal_init_hwloop();
#ifdef CONFIG_BOOTLOADER_REGION_PROTECTION_ENABLE
// protect memory region // protect memory region
esp_cpu_configure_region_protection(); esp_cpu_configure_region_protection();
#endif
} }