OpenSBI

⚠️ The code is based on: https://gitlab.com/riseproject/riscv-optee/opensbi/-/tree/dev-optee-mpxy Commit ID: 7d4c90953afe3bd86f9e2501bd4c2501e8db1898 mpxy_opteed_init() Match compatible string: "riscv,sbi-mpxy-opteed". Allocate channel. opteed_domain_setup() Setup domain for OP-TEE dispatcher by looking up the domain specified by opensbi-domain-instance phandle in DTS. Assign the domain name to opteed_domain_name. Get channel ID from DTS property: riscv,sbi-mpxy-channel-id. Initialize channel: 1 2 3 4 5 6 // lib/utils/mpxy/fdt_mpxy_opteed.c channel->channel_id = channel_id; channel->send_message = mpxy_opteed_send_message; channel->attrs.msg_proto_id = SBI_MPXY_MSGPROTO_TEE_ID; channel->attrs.msg_data_maxlen = PAGE_SIZE; Register channel: sbi_mpxy_register_channel() ...

⚠️ The code is based on: https://gitlab.com/riseproject/riscv-optee/opensbi/-/tree/dev-optee-mpxy Commit ID: 7d4c90953afe3bd86f9e2501bd4c2501e8db1898 init_coldboot() sbi_mpxy_init() sbi_mpxy_init() Allocate struct mpxy_state for 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: 1 2 3 4 5 6 7 8 9 10 11 // lib/utils/mpxy/objects.mk libsbiutils-objs-$(CONFIG_FDT_MPXY) += mpxy/fdt_mpxy.o libsbiutils-objs-$(CONFIG_FDT_MPXY) += mpxy/fdt_mpxy_drivers.o carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_RPMI_MBOX) += fdt_mpxy_rpmi_mbox libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_MBOX) += mpxy/fdt_mpxy_rpmi_mbox.o carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_MM) += fdt_mpxy_mm libsbiutils-objs-$(CONFIG_FDT_MPXY_MM) += mpxy/fdt_mpxy_mm.o carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_OPTEED) += fdt_mpxy_opteed libsbiutils-objs-$(CONFIG_FDT_MPXY_OPTEED) += mpxy/fdt_mpxy_opteed.o 1 2 3 4 5 // lib/utils/mpxy/fdt_mpxy_drivers.carray HEADER: sbi_utils/mpxy/fdt_mpxy.h TYPE: struct fdt_mpxy NAME: fdt_mpxy_drivers 1 2 3 4 5 6 7 // include/sbi_utils/mpxy/fdt_mpxy.h struct fdt_mpxy { const struct fdt_match *match_table; int (*init)(void *fdt, int nodeoff, const struct fdt_match *match); void (*exit)(void); }; Call drv->init(). ...