[PATCH 0/3] KVM: arm64: nv: Shadow ptdump fixes

Marc Zyngier maz at kernel.org
Thu Jun 25 02:54:40 PDT 2026


On Thu, 25 Jun 2026 08:47:04 +0100,
Wei-Lin Chang <weilin.chang at arm.com> wrote:
> 
> I don't see a way out with this per-mmu file scheme. The core issue is
> mmus have a different lifetime than the VM's debugfs directory, and
> both's removal can happen in parallel, i.e. the VM debugfs directory
> can be removed anytime we are in mmu notifier release freeing the mmus
> and their shadow ptdump files.

Why isn't that a problem with the existing S2 ptdump code?

	M.

-- 
Without deviation from the norm, progress is not possible.



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