linux-kernel - Re: [PATCH 00/21] mm: ASI direct map management

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Message-ID: <aNw0sNehEQTWVI29@char.us.oracle.com>
Date: Tue, 30 Sep 2025 15:51:12 -0400
From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To: Brendan Jackman <jackmanb@...gle.com>
Cc: Andy Lutomirski <luto@...nel.org>,
        Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>,
        Suren Baghdasaryan <surenb@...gle.com>, Michal Hocko <mhocko@...e.com>,
        Johannes Weiner <hannes@...xchg.org>, Zi Yan <ziy@...dia.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Yuanchu Xie <yuanchu@...gle.com>,
        Roman Gushchin <roman.gushchin@...ux.dev>, peterz@...radead.org,
        bp@...en8.de, dave.hansen@...ux.intel.com, mingo@...hat.com,
        tglx@...utronix.de, akpm@...ux-foundation.org, david@...hat.com,
        derkling@...gle.com, junaids@...gle.com, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, reijiw@...gle.com, rientjes@...gle.com,
        rppt@...nel.org, vbabka@...e.cz, x86@...nel.org,
        Yosry Ahmed <yosry.ahmed@...ux.dev>
Subject: Re: [PATCH 00/21] mm: ASI direct map management

On Wed, Sep 24, 2025 at 02:59:35PM +0000, Brendan Jackman wrote:
> As per [0] I think ASI is ready to start merging. This is the first
> step. The scope of this series is: everything needed to set up the
> direct map in the restricted address spaces.

There looks to be a different approach taken by other folks to 
yank the guest pages from the hypervisor:

https://lore.kernel.org/kvm/20250912091708.17502-1-roypat@amazon.co.uk/

That looks to have a very similar end result with less changes?