linux-kernel - Re: [RFC PATCH v5 22/45] KVM: TDX: Get/put PAMT pages when (un)mapping private memory

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Message-ID: <b1a26b58eb01fc2d3c166cae91e23ea7631bda1e.camel@intel.com>
Date: Fri, 6 Feb 2026 23:19:47 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To: "seanjc@...gle.com" <seanjc@...gle.com>
CC: "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "linux-coco@...ts.linux.dev"
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Subject: Re: [RFC PATCH v5 22/45] KVM: TDX: Get/put PAMT pages when
 (un)mapping private memory

On Fri, 2026-02-06 at 15:18 -0800, Sean Christopherson wrote:
> How about?
> 
>   (*topup_private_mapping_cache)
> 
> Because it's not just "private memory" it's specifically the mapping.  E.g. for
> the hugepage split case, the primary memory is already assigned and mapped into
> the guest, but a topup is still needed because KVM is creating a new/different
> mapping.

Sure.