[PATCH][makedumpfile] Fix riscv64 virtual-to-physical address translation

[Rui Qi]

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.

Shuan He (2):
  riscv64: Fix vaddr_to_paddr for vmalloc and vmemmap regions
  riscv64: Fix huge page translation in vtop_riscv64()

 arch/riscv64.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

-- 
2.20.1