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cache-block management Instruction permissions check #1878

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qin996 opened this issue Mar 3, 2025 · 0 comments
Open

cache-block management Instruction permissions check #1878

qin996 opened this issue Mar 3, 2025 · 0 comments

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@qin996
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qin996 commented Mar 3, 2025

In RISC-V unprivileged architecture(Version, 20240411), it only says that "A clean operation performs a write transfer to another cache or to memory, ....."
Should a cache-block management instruction(cbo.flush, cbo.invalid, cbo.clean) check page and access permissions, just like a store?
For example, should a cache-block management instruction check write permission of a PTE?

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