Re: [RFC PATCH v5 44/45] KVM: x86/mmu: Add support for splitting S-EPT hugepages on conversion

[Sean Christopherson]

On Wed, Feb 11, 2026, Yan Zhao wrote:
> However, I have a question about kvm_tdp_mmu_try_split_huge_pages(), which is
> called by dirty page tracking related functions. I'm not sure if we might want
> to invoke them from a non-vCPU thread for mirror roots in the future. If that's
> the case, would they need some way to acquire this lock?

More than likely, yes.  But that's a far future problem, at least as far as
upstream is concerned.  I.e. I don't want to plan _that_ far ahead in terms of
writing code to avoid churn.