[PATCH v2 0/2] Fix riscv64 virtual-to-physical address translation

[HAGIO KAZUHITO(萩尾 一仁)]

On 2026/05/15 17:07, Rui Qi wrote:
> This patchset fixes two bugs in the riscv64 architecture support of
> makedumpfile related to virtual-to-physical address translation.
> 
> Patch 1 fixes vaddr_to_paddr_riscv64() to exclude vmalloc and vmemmap
> regions from the VTOP() fast path. These regions are not linearly mapped
> and must go through page table walk.
> 
> Patch 2 fixes vtop_riscv64() to correctly handle huge pages when
> _PAGE_LEAF is set at PGD/P4D/PUD/PMD level. The original code incorrectly
> fell through to the next level, causing wrong physical address computation.
> 
> 
> Changes in v2:
> - Patch 2: Changed `goto invalid;` to `return paddr;` when huge page
>    (_PAGE_LEAF) hits, as the calculated physical address is valid.
> - Patch 2: Removed the unused `out:` label to fix a compiler warning.

Thank you for the update, applied.

Thanks,
Kazu

> 
> Rui Qi (2):
>    riscv64: Fix vaddr_to_paddr for vmalloc and vmemmap regions
>    riscv64: Fix huge page translation in vtop_riscv64()
> 
>   arch/riscv64.c | 31 +++++++++++++++++++++----------
>   1 file changed, 21 insertions(+), 10 deletions(-)
>