* Added new `WOLFBOOT_TPM_SEAL` and `WOLFBOOT_TPM_SEAL_NV_BASE` config options.
* Added new `tools/tpm/policy_create` tool for assisting with creation of a policy digest. The sign keytool `--policy=file` signs the policy.
* Added new `WOLFBOOT_TPM_VERIFY` option to enable offloading of the asymmetric verification to the TPM. By default wolfCrypt will be used.
* Added example seal/unseal to update_flash for ARCH_SIM.
* Renamed `WOLFBOOT_TPM_KEYSTORE_NV_INDEX` to `WOLFBOOT_TPM_KEYSTORE_NV_BASE` to support multiple public keys.
* Refactored most TPM code into tpm.c.
* Refactored the keystore ROT to use new `wolfBoot_check_rot` API.
* Refactored the sign keytool to have a sign_digest function to allow signing firmware and policy for sealing/unsealing.
* Fix for make distclean && make using the wrong key tools.
* Added simulator support for Mac.
* Fix for simulator to properly assemble wolfboot.bin + signedtestapp + update + swap.
* Fixes for handling 64-bit assigned mmap virtual addresses. Added hal_flash_write and hal_flash_erase support for 64-bit address using uintptr_t. Enabled if platform is 64-bit and `FORCE_32BIT` is not defined
* Fix simulator conflict with src/libwolfboot.o object in test-app.
* Cleanup test-app linker flags.
* Update documentation for signing with `--no-sign`, as the key argument should not be supplied.
* Recommend `make keysclean` instead of distclean on keys mismatch.
* Renesas headings/readme link and white-space.
* Added ELF32 and ELF64 loader support (config `ELF=1` or build option `WOLFBOOT_ELF`).
* Add ELF support to `update_ram.c` loader.
* Add support for loading entire flash image to RAM when `EXT_FLASH=1` and `NO_XIP=1` (or `WOLFBOOT_USE_RAMBOOT`).
* Added QUICC Engine support to load microcode and enable.
* Add multiple core support for NXP P1021.
* Fixes to resolve first stage boot ROM relocation.
- Implemented temporary workaround to resolve stack traps.
* Added PPC GOT relocation support.
* Fix for the PPC `isr_empty` handler address.
* Fix to allow stack to use DDR by having assembly setup DDR TLB. After relocating wolfBoot use stack on DDR.
* Cleanup wolfBoot output.
- Only remove extra .bin/.elf created unless `make distclean` is used.
- Don't output the key grep test (only check result).
- Adjust build order (first stage, wolfboot, test app, key, sign test app and factory).
- Fix to make sure linker script is rebuilt before objects.
Sample NXP P1021 Output:
```
Relocating BOOT ROM to DDR
Loading wolfBoot to DDR
Jumping to full wolfBoot
wolfBoot HAL Init
Flash Init: Ret 0, ID 0x76207620
QE: Length 63732, Count 1
QE: uploading 'Microcode for P1021 r1.0' version 0.0.1
QE: Traps 0
MP: Starting core 2 (spin table 0xFFFFF240)
Versions: Boot 1, Update 0
Trying Boot partition at 0x200000
Loading header 512 bytes to 0x1DFFFE00
Loading image 3170724 bytes to 0x1E000000
Image size 3170724
Firmware Valid
Loading elf at 0x1E000000
Found valid elf32 (big endian)
Booting at 0x6000
```
fix a key not being unloaded, normaly doesn't crop up since in normal circumstances wolfBoot and the TPM both turn on fresh but on the simulator not freeing the key caseus a leak
move pcr reset and extend outside of session
the tpm uses policy checking for modifying PCR's so we need to reset and extend the PCR's with the image hash before the session begins, currently tested unseal, having trouble getting the simulator to run update in order to test reseal
* Fixes for e500 L1/L2 cache.
* Fixes for eLBC and DDR3 drivers on P1021.
* Fixes for LAW and TLB for P1021.
* Fix for the e500v2 core peripheral issues with data barrier / coherency safety.
* Support for SP math all (`SPMATHALL=1`).
* Support for stage 1 loader (`make stage1`).
Daniele Lacamera
David Garske
jordan
John Bland
Daniele Lacamera
Dimitri Papadopoulos
Hideki Miyazaki
billphipps
Brett Nicholas