KVM: selftests: Add RISC-V Sv57 page table indexing

RISC-V selftests can create guests with five page-table levels, for
example when the selected guest mode is Sv57. The RISC-V page-table
walker only had index arrays for levels 0 through 3, so
virt_arch_pg_map() indexed past the end of the arrays when level 4 was
used.

Add the missing L4 index mask and shift so selftests can build guest
page tables for Sv57 VMs.

Reviewed-by: Nutty Liu <nutty.liu@hotmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Jinyu Tang <jinyu.tang@linux.dev>
Link: https://lore.kernel.org/r/20260814114507.583424-3-jinyu.tang@linux.dev
Signed-off-by: Anup Patel <anup@brainfault.org>

0 files changed, 0 insertions, 0 deletions