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Add Secure Thread ID CSR for compartmentalisation #179

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tariqkurd-repo opened this issue Apr 4, 2024 · 0 comments · Fixed by #187
Closed

Add Secure Thread ID CSR for compartmentalisation #179

tariqkurd-repo opened this issue Apr 4, 2024 · 0 comments · Fixed by #187
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bug Something isn't working documentation Improvements or additions to documentation For next release

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tariqkurd-repo commented Apr 4, 2024 •
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A placeholder that we need to add compartmentalisation support as soon as possible, probably by adding a Secure Thread ID CSR.

@francislaus
@tariqkurd-repo tariqkurd-repo added bug Something isn't working documentation Improvements or additions to documentation For next release labels Apr 4, 2024
@arichardson arichardson linked a pull request Apr 8, 2024 that will close this issue
Added thread identifier (TID) #187
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@francislaus francislaus mentioned this issue Apr 10, 2024
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arichardson pushed a commit that referenced this issue Apr 15, 2024
@francislaus
Added thread identifier (TID) (#187)
8a8a3e8 
This new extension, currently tentatively named Zstid, makes it possible
to reliably retrieve a thread identifier for U-mode (and to some extent 
also S-mode). The unprivileged tp register cannot be used for this
purpose since any untrusted could overwrite it. Being able to
efficiently identify the current thread ID is important for efficient
software compartmentalization.

Fixes #179
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Added thread identifier (TID) francislaus/riscv-cheri
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