For the SoCs that support configurable MMU page size, it is possible
that the bootloader and application are built with different MMU page
size configuration. This mismatch is not supported at the moment and
application verification fails (at bootup or during OTA update).
Configuring MMU page size helps to optimize the flash space by having
smaller alignment and padding (secure) requirements. Please note that
the MMU page size is tied with the flash size configuration at the
moment (`ESPTOOLPY_FLASHSIZE_XMB`).
This MR ensures that application verification happens using the MMU page
size configured in its binary header. Thus, bootloader and application
can now have different MMU page sizes and different combinations shall
be supported.
Some additional checks related to secure version of the application in
anti-rollback case have been added to avoid any attempts to boot lower
security version but valid application (e.g., passive partition image).
- Read secure_version under sha256 protection
- First check has been added in the bootloader to ensure correct secure
version after application verification and loading stage. This check
happens before setting up the flash cache mapping and handling over
the final control to application. This check ensures that application
was not swapped (e.g., to lower security version but valid image) just
before the load stage in bootloader.
- Second check has been added in the application startup code to ensure
that currently booting app has higher security version than the one
programmed in the eFuse for anti-rollback scenario. This will ensure
that only the legit application boots-up on the device for
anti-rollback case.
This commit enables the standad VERSION argument for the project() macro
in ESP-IDF. The VERSION argument is compilant with the requirements of
cmake 3.16. This commit also adds new test cases for verifying the
validity of the version argument.
Merges https://github.com/espressif/esp-idf/pull/12461
Co-authored-by: Sudeep Mohanty <sudeep.mohanty@espressif.com>
* All components which won't build (yet) on Linux are excluded.
This enables switching to Linux in an application without
explicitly setting COMPONENTS to main in the main
CMakeLists.txt.
* ESP Timer provides headers for Linux now
* automatically disabling LWIP in Kconfig if it is not available
doc(linux): brought section
"Component Linux/Mock Support Overview" up to date
By doing so, the application will be able to define its own esp_app_desc generated at their discretion, with help of whatever build process they use, and removes the necessity to rebuild esp-idf every time only to have the esp_app_desc updated.
Removes the patch necessary for https://github.com/esp-rs/esp-idf-sys/pull/136, where we are building esp-idf and basically linking it as a static library. The process building the library doesn't have access to the real application version or the build time, since we are only rebuilding esp-idf if the sdkconfig changes.
