Re: [PATCH v3 13/17] KVM: x86/tdp_mmu: Support mirror root for TDP MMU

From: Edgecombe, Rick P
Date: Thu Jul 11 2024 - 19:55:14 EST


On Tue, 2024-07-09 at 15:38 -0700, Rick Edgecombe wrote:
> > Could we move them to tdp_mmu.c and rename them to something like
> > tdp_mmu_type_to_root() and tdp_mmu_fault_to_root() ?
>
> tdp_mmu_get_root_for_fault() was proposed by Paolo, and tdp_mmu_get_root() was
> discussed without comment. Not to say there is anything wrong with the names
> proposed, but I think this is wading into bikeshedding territory at this
> stage.

I kept thinking about this comment. On more consideration tdp_mmu_get_root() is
a problematically terrible name since "get" usually means take a reference to
something which is something you can do to roots and (and what
kvm_tdp_mmu_get_root() is doing). So people might think tdp_mmu_get_root() is
taking a reference.