linux-kernel - Re: [PATCH v3 00/24] KVM: TDX huge page support for private memory

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Message-ID: <741984276082955190f9bf9cedc244cb3cab1556.camel@intel.com>
Date: Wed, 7 Jan 2026 19:22:02 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
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Subject: Re: [PATCH v3 00/24] KVM: TDX huge page support for private memory

On Tue, 2026-01-06 at 15:43 -0800, Sean Christopherson wrote:
> Mapping a hugepage for memory that KVM _knows_ is contiguous and homogenous is
> conceptually totally fine, i.e. I'm not totally opposed to adding support for
> mapping multiple guest_memfd folios with a single hugepage.   As to whether we
> do (a) nothing, (b) change the refcounting, or (c) add support for mapping
> multiple folios in one page, probably comes down to which option provides "good
> enough" performance without incurring too much complexity.

Can we add "whether we can push it off to the future" to the considerations
list? The in-flight gmem stuff is pretty complex and this doesn't seem to have
an ABI intersection.