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[209.85.167.45]) by smtp.gmail.com with ESMTPSA id k17sm234631lfv.285.2021.09.08.09.47.19 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 08 Sep 2021 09:47:20 -0700 (PDT) Received: by mail-lf1-f45.google.com with SMTP id s10so5643392lfr.11 for ; Wed, 08 Sep 2021 09:47:19 -0700 (PDT) X-Received: by 2002:a05:6512:34c3:: with SMTP id w3mr3240332lfr.173.1631119639612; Wed, 08 Sep 2021 09:47:19 -0700 (PDT) MIME-Version: 1.0 References: <69a0c6f17b000b54b8333ee42b3124c1d5a869e2.1631105737.git.robin.murphy@arm.com> In-Reply-To: <69a0c6f17b000b54b8333ee42b3124c1d5a869e2.1631105737.git.robin.murphy@arm.com> From: Linus Torvalds Date: Wed, 8 Sep 2021 09:47:03 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH] iommu: Clarify default domain Kconfig To: Robin Murphy Cc: Joerg Roedel , Will Deacon , iommu , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 8, 2021 at 5:55 AM Robin Murphy wrote: > > Although strictly it is the AMD and Intel drivers which have an existing > expectation of lazy behaviour by default, it ends up being rather > unintuitive to describe this literally in Kconfig. Express it instead as > an architecture dependency, to clarify that it is a valid config-time > decision. Thanks, I think this describes the behavior much more naturally, even if apparently the end result is pretty much identical. I'm assuming I'll get it through the iommu tree eventually (no need to expedite this), Linus