From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.8bytes.org (mail.8bytes.org [85.214.250.239]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 34B2320E8 for ; Fri, 14 Jul 2023 14:09:23 +0000 (UTC) Received: from 8bytes.org (p200300f6af03f600fd690381fa83412b.dip0.t-ipconnect.de [IPv6:2003:f6:af03:f600:fd69:381:fa83:412b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.8bytes.org (Postfix) with ESMTPSA id A363D28012A; Fri, 14 Jul 2023 16:09:20 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=8bytes.org; s=default; t=1689343760; bh=M0SoCIDigrh34C8zCDczRKfN4d2BWxv9UemPawpMyzs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PiIRHazyMSRJ5zVVXJ3d6lwTAB9US7oCcdFwtoq0o/7dWHXrd/FmscTbP5T3StLSn 29q9QXhsW4g/LTXkIUSjUO6NOMBEfN8Iu2gcrxI0wP01YgV3y/HDjaUMcn1rHOU8Yq UuMq4VkiuYRmcPQ7dkL7PbveQ/LyfXyyot1pDQ8rGT+91xtBqicpxtNnDdWIOSaKqN 3vOye471ooKK7U1U1Ot3EM4Rg2NgiSH5S1pRjmeELQuKUCor8pxVnqnF3eFcJokDkT iJy/B5TGib0yV7wLejswTpkXV2ZjPFSh4LxNqpqxO3hx1D6fbzvNKDu4psEUqiurUl +8tN/uOYBPG0g== Date: Fri, 14 Jul 2023 16:09:19 +0200 From: Joerg Roedel To: Robin Murphy Cc: will@kernel.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Linus Torvalds , Jakub Kicinski , John Garry Subject: Re: [PATCH v4] iommu: Optimise PCI SAC address trick Message-ID: References: Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Apr 13, 2023 at 02:40:25PM +0100, Robin Murphy wrote: > To that end, implement a flag to refine the SAC business into a > per-device policy that can automatically get itself out of the way if > and when it stops being useful. It is summer time and it may be the heat, but I am in a brave mood and decided to give this a shoot. I applied it to the core branch and will push it to linux-next for testing. Regards, Joerg