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Virtual address capability (v-capability) support in the normal world #41

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Mingkai-Li opened this issue Sep 25, 2023 · 0 comments
Open

Virtual address capability (v-capability) support in the normal world #41

Mingkai-Li opened this issue Sep 25, 2023 · 0 comments
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enhancement New feature or request planned Delayed until future consideration

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Mingkai-Li commented Sep 25, 2023 •
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The limitations of existing CAPSTONE capabilities in the normal world:

  • The capability can only point to a memory region in the secure memory, hence no memory protection for the normal memory at all.
  • Since the OS and normal world applications are in the same domain, we can assume OS as trusted in this scenario, and provide some OS-managed v-capabilities to provide CAPSTONE-capability-like traits with virtual address.

Key traits for CAPSTONE v-capabilities:

  • Linearity
  • Revocation
  • Software-defined by the priviledged software in the normal world
  • Transparent to the secure world
@Mingkai-Li Mingkai-Li added enhancement New feature or request help wanted Extra attention is needed planned Delayed until future consideration and removed help wanted Extra attention is needed labels Sep 25, 2023
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