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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/platform_requirements.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/platform_requirements.md b/docs/platform_requirements.md index a843febf..dfda4f48 100644 --- a/docs/platform_requirements.md +++ b/docs/platform_requirements.md @@ -19,6 +19,10 @@ Base Platform Requirements The base RISC-V platform requirements for OpenSBI are as follows: 1. At least rv32ima_zicsr or rv64ima_zicsr required on all HARTs + + * Users may restrict the usage of atomic instructions to lr/sc + via rv32im_zalrsc_zicsr or rv64im_zalrsc_zicsr if preferred + 2. At least one HART should have S-mode support because: * SBI calls are meant for RISC-V S-mode (Supervisor mode) |