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Fix omission of Sspm and Supm from RVA23/RVB23 #152

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Mar 22, 2024
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Fix omission of Sspm and Supm from RVA23/RVB23 #152

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6 changes: 6 additions & 0 deletions rva23-profile.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,9 @@ NOTE: V was optional in RVA22U64.

- *Zawrs* Wait on reservation set.

- *Supm* Pointer masking, with the execution environment providing a means to
select PMLEN=0 and PMLEN=7 at minimum.

==== RVA23U64 Optional Extensions

RVA23U64 has eleven profile options (Zvkng, Zvksg, Zacas, Zvbc, Zfh, Zbc,
Expand Down Expand Up @@ -363,6 +366,9 @@ spaces or CSRs.
- *Svvptc* Transitions from invalid to valid PTEs will be visible in
bounded time without an explicit SFENCE.

- *Sspm* Supervisor-mode pointer masking, with the supervisor execution
environment providing a means to select PMLEN=0 and PMLEN=7 at minimum.

===== Transitory Options

There are no privileged transitory options in RVA23S64.
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5 changes: 5 additions & 0 deletions rvb23-profile.adoc
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Expand Up @@ -188,6 +188,8 @@ NOTE: Unclear if other Zve* extensions should also be supported in RVB.
- *Zvfhmin* Vector FP16 conversion instructions.
- *Zvbb* Vector bitmanip extension.
- *Zvkt* Vector data-independent execution time.
- *Supm* Pointer masking, with the execution environment providing a means to
select PMLEN=0 and PMLEN=7 at minimum.

The following extensions are expansion options in both RVA23U64 and RVB23U64:

Expand Down Expand Up @@ -315,6 +317,9 @@ The following privileged expansion options are mandatory in RVA22S64 but options
- *Ssnpm* Pointer masking, with `senvcfg.PME` supporting at minimum,
settings PMLEN=0 and PMLEN=7.

- *Sspm* Supervisor-mode pointer masking, with the supervisor execution
environment providing a means to select PMLEN=0 and PMLEN=7 at minimum.

The following hypervisor extension and mandates were also in RVA22S64
and are available as an expansion option in RVB23S64:

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