linux-kernel - Re: [PATCH v2 0/1] KVM: arm64: Map GPU memory with no struct pages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z1hnZ0H13Pst5sKF@arm.com>
Date: Tue, 10 Dec 2024 16:08:07 +0000
From: Catalin Marinas <catalin.marinas@....com>
To: Donald Dutile <ddutile@...hat.com>
Cc: Jason Gunthorpe <jgg@...dia.com>, Will Deacon <will@...nel.org>,
	ankita@...dia.com, maz@...nel.org, oliver.upton@...ux.dev,
	joey.gouly@....com, suzuki.poulose@....com, yuzenghui@...wei.com,
	ryan.roberts@....com, shahuang@...hat.com, lpieralisi@...nel.org,
	aniketa@...dia.com, cjia@...dia.com, kwankhede@...dia.com,
	targupta@...dia.com, vsethi@...dia.com, acurrid@...dia.com,
	apopple@...dia.com, jhubbard@...dia.com, danw@...dia.com,
	zhiw@...dia.com, mochs@...dia.com, udhoke@...dia.com,
	dnigam@...dia.com, alex.williamson@...hat.com,
	sebastianene@...gle.com, coltonlewis@...gle.com,
	kevin.tian@...el.com, yi.l.liu@...el.com, ardb@...nel.org,
	akpm@...ux-foundation.org, gshan@...hat.com, linux-mm@...ck.org,
	kvmarm@...ts.linux.dev, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 0/1] KVM: arm64: Map GPU memory with no struct pages

On Tue, Dec 10, 2024 at 10:56:43AM -0500, Donald Dutile wrote:
> So, I'm not sure I read what is needed to resolve this patch. I read
> Will's reply to split it further and basically along what logical
> lines of functionality; is there still an MTE complexity that has to
> be resolved/included in the series?

Since MTE is still around, the complexity did not go away. But I need to
properly read the patch and Will's comment and page in the whole
discussion from last year.

There's now FEAT_MTE_PERM as well but we don't have those patches in
yet:

https://lore.kernel.org/r/20241028094014.2596619-1-aneesh.kumar@kernel.org/

-- 
Catalin