Implement CVA6 ROT

[kasumi0223]

I'm trying to modify the CVA6 bootrom code to implement the CVA6 RoT.
I have done these steps in CVA6 bootrom repository:

• add ed25519, sha3 and other source code to CVA6 bootrom repository
• copy bootloader function to /fpga/src/bootrom/src/main.c
• modify /fpga/src/bootrom/linker.lds to include sanctum_params.lds
• replace sbi_memset(sm_hash, 0, MDSIZE); with sbi_memcpy(sm_hash, sanctum_sm_hash, MDSIZE); in sm_copy_key()

But when I ran attestor.ke, sanctum_sm_hash and sanctum_sm_signature were all zero.
I printed the value and address of sanctum_sm_hash during CVA6 booting. The hash value is correct but address is wrong (should be 0x801ff080 according to .lds file).

Where did I do wrong? Or did I miss any steps?

These are files that I modified from CVA6 bootrom repository.
code.zip