type
Post
status
Published
date
Oct 12, 2024
slug
summary
OpenSBI MPXY 的 codes trace 筆記。
tags
OpenSBI
OP-TEE
category
Security
icon
password
The code is based on: https://gitlab.com/riseproject/riscv-optee/opensbi/-/tree/dev-optee-mpxy
Commit ID:
7d4c90953afe3bd86f9e2501bd4c2501e8db1898init_coldboot()
sbi_mpxy_init()- Allocate
struct mpxy_statefor each domain. sbi_platform_mpxy_init()- Call platform-defined
mpxy_init(). - e.g. For generic platform:
fdt_mpxy_init().
fdt_mpxy_init()- Iterate MPXY drivers in
fdt_mpxy_drivers[]. - MPXY drivers are generated at compile time:
- Call
drv->init(). - e.g.
mpxy_opteed_init()
sbi_ecall_mpxy_handler()sbi_ecall_mpxy_handler()is the handler for SBI MPXY ecalls, which will call the corresponding function based on SBI function ID, e.g.