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Add TRAP_ON_RESERVED_INSTRUCTION #134

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Merged
dhower-qc merged 3 commits into from
Oct 18, 2024
Merged

Add TRAP_ON_RESERVED_INSTRUCTION #134

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f6bced7
Add TRAP_ON_RESERVED_INSTRUCTION
Oct 18, 2024
813908e
Remove inadvertant parameters
Oct 18, 2024
cc9a968
Merge branch 'main' into trap_on_reserved
dhower-qc Oct 18, 2024
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13 changes: 11 additions & 2 deletions arch/ext/Sm.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -291,9 +291,18 @@ Sm:
type: boolean
TRAP_ON_UNIMPLEMENTED_INSTRUCTION:
description: |
When true, fetching an unimplemented instruction will cause an `IllegalInstruction` exception.
When true, fetching an unimplemented instruction from the custom encoding space will cause
an `IllegalInstruction` exception.

When false, fetching an unimplemented instruction is `unpredictable`.
When false, fetching an unimplemented instruction is `UNPREDICTABLE`.
schema:
type: boolean
TRAP_ON_RESERVED_INSTRUCTION:
description: |
When true, fetching an unimplemented and/or undefined instruction from the standard/reserved
encoding space will cause an `IllegalInstruction` exception.

When false, fetching such an instruction is `UNPREDICTABLE`.
schema:
type: boolean
TRAP_ON_UNIMPLEMENTED_CSR:
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1 change: 1 addition & 0 deletions cfgs/generic_rv64/params.yaml
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Expand Up @@ -234,6 +234,7 @@ params:
# when false, writing an illegal value to a WLRL CSR field is ignored
TRAP_ON_ILLEGAL_WLRL: true
TRAP_ON_UNIMPLEMENTED_INSTRUCTION: true
TRAP_ON_RESERVED_INSTRUCTION: true
TRAP_ON_UNIMPLEMENTED_CSR: true

# Whether or not a real hardware `time` CSR exists. Implementations can either provide a real
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