RT-Thread / RT-Thread/rt-thread
[Bug] [RISC-V] riscv64 SMP hartid的保存无效
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- Dominant language
- C
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Description
RT-Thread Version
master
Hardware Type/Architectures
RISC-V ur-dp1000
Develop Toolchain
Other
Describe the bug
risc-v common64中，SMP多核运行时，目前标准版使用satp保存hartid，risc-v Privileged Architecture spec中对satp寄存器的说明：
Other additional context
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the RISC-V common64 SMP hartid handling that writes the hartid to satp, then compare that path with the Privileged Architecture requirement described in the issue. Reproduce or inspect the behavior on the RISC-V ur-dp1000 hardware rather than relying only on QEMU. Done means SMP hartid handling works on the reported board without relying on invalid satp fields.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- embedded-iot, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100