wolfTPM Zephyr Project Port

[aidangarske]

Description

This is the pr for adding Zephyr support for wolfTPM. I added wolftpm_wrap_test and wolftpm_wrap_caps samples. Each one builds successfully. The user_settings.h in the zephyr project is used correctly. that means if you want to supply your own you can either change the file or add yours in place.

Testing

setup Zephyr module in zephyrproject and build samples:

west update
cd [zephyrproject]
west build -p auto -b qemu_x86 modules/lib/wolftpm/zephyr/samples/wolftpm_wrap_test
west build -p auto -b qemu_x86 modules/lib/wolftpm/zephyr/samples/wolftpm_wrap_caps

A zephyr.yml Github CI workflow was added to test builds.

TODO

I still need to run it with a physical tpm device or one of the supported boards.
when running west build -t run getting:

SeaBIOS (version rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org)
Booting from ROM..
*** Booting Zephyr OS build v4.0.0-2817-g19526795c6af ***
[00:00:00.010,000] <err> os: Page fault at address 0x4 (error code 0x0)
[00:00:00.010,000] <err> os: Linear address not present in page tables
[00:00:00.010,000] <err> os: Access violation: supervisor thread not allowed to read
[00:00:00.010,000] <err> os: PTE: not present
[00:00:00.010,000] <err> os: EAX: 0x00000000, EBX: 0x0010a0c0, ECX: 0x00000000, EDX: 0x00114558
[00:00:00.020,000] <err> os: ESI: 0x00000000, EDI: 0x00102791, EBP: 0x0012710c, ESP: 0x00125834
[00:00:00.020,000] <err> os: EFLAGS: 0x00010206 CS: 0x0008 CR3: 0x00113000
[00:00:00.020,000] <err> os: EIP: 0x00101bfd
[00:00:00.020,000] <err> os: call trace:
[00:00:00.020,000] <err> os:      0: 0x00101e42
[00:00:00.020,000] <err> os:      1: 0x0010599a
[00:00:00.020,000] <err> os:      2: 0x001027b3
[00:00:00.020,000] <err> os: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
[00:00:00.020,000] <err> os: Current thread: 0x1144e0 (unknown)
[00:00:00.020,000] <err> os: Halting system
FAILED: zephyr/CMakeFiles/run_qemu /Users/aidangarske/zephyrproject/build/zephyr/CMakeFiles/run_qemu 
cd /Users/aidangarske/zephyrproject/build && /usr/local/bin/qemu-system-i386 -m 32 -cpu qemu32,+nx,+pae -machine q35 -device isa-debug-exit,iobase=0xf4,iosize=0x04 -no-reboot -nographic -machine acpi=off -net none -pidfile qemu.pid -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -icount shift=5,align=off,sleep=off -rtc clock=vm 
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: /usr/local/bin/cmake --build /Users/aidangarske/zephyrproject/build --target run

Documentation

For now I have made a zephyr/README.md with all the information needed to get started.

[dgarske]

Great work.

[dgarske]

Wonderful work. As you get time please add a GitHub CI test. @ColtonWilley please review also.