[RTL] Fix for issue number 17 and 18 - Githubissues

zero-day-labs / riscv-iommu

IOMMU IP compliant with the RISC-V IOMMU Specification v1.0

Apache License 2.0

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[RTL] Fix for issue number 17 and 18 #23

Closed mhayat-10xe closed 2 months ago

mhayat-10xe commented 2 months ago

Description

This PR has the fix for issue #17 and #18.

Changes

Moved the pdte/ddte reserved check directly underneath the pdte/ddte validity check to ensure the second check activates only if the first validity check fails.
Introduced a condition within this block: if ddt_walk is high, cause_code will be set to "DDT Entry Misconfigured"; otherwise, it will be set to "PDT Entry Misconfigured".