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Thu, 26 Nov 2020 20:13:40 +0000 Date: Thu, 26 Nov 2020 16:13:39 -0400 From: Jason Gunthorpe To: Peter Xu CC: Tom Lendacky , Cornelia Huck , , Alex Williamson Subject: Re: [PATCH] vfio-pci: Use io_remap_pfn_range() for PCI IO memory Message-ID: <20201126201339.GA552508@nvidia.com> References: <0-v1-331b76591255+552-vfio_sme_jgg@nvidia.com> <20201105233949.GA138364@xz-x1> <20201116155341.GL917484@nvidia.com> <02bd74bb-b672-da91-aae7-6364c4bf555f@amd.com> <20201116232033.GR917484@nvidia.com> <20201117155757.GA13873@xz-x1> <57f51f08-1dec-e3d6-b636-71c8a00142fb@amd.com> <20201117181754.GC13873@xz-x1> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20201117181754.GC13873@xz-x1> X-ClientProxiedBy: MN2PR19CA0036.namprd19.prod.outlook.com (2603:10b6:208:178::49) To DM6PR12MB3834.namprd12.prod.outlook.com (2603:10b6:5:14a::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from mlx.ziepe.ca (156.34.48.30) by MN2PR19CA0036.namprd19.prod.outlook.com (2603:10b6:208:178::49) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3611.20 via Frontend Transport; Thu, 26 Nov 2020 20:13:40 +0000 Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1kiNe7-002LG2-87; Thu, 26 Nov 2020 16:13:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1606421628; bh=Sf1yVU111k14EgqQ+AF881i5HFrGUpCIMbTA50Yn5T8=; h=ARC-Seal:ARC-Message-Signature:ARC-Authentication-Results:Date: From:To:CC:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:X-ClientProxiedBy:MIME-Version: X-MS-Exchange-MessageSentRepresentingType; b=neS3ZB2nyvQjAB0Va68ANtOrnl69Ce6YE9k+VWV9ztryWGgqcYuk0C80TGiv3jK9p 3g007dMOLPlmR7j+Cls/p7Bs4Zff1rnzcBFBoFyrQdGTfJe1TU3XhLDkfYeRP8nR/Y b4cGU88m8/OYtXEwMoxhJ0BB+9DzO06q5WP5J0QrhtsOGrQarWzaNuSvCg0GEdS94u HWd5Xkv0fxDjilGeXoXFdxy0iieazd7Hy8/vytIwCoGVYIfOruV4wAhKQElp0+l1Ta ZVczqSsZqzfGQMT/vNI7xA/tRpuQ7ejYJ2RScTClZuroMgBVFrrozX5iJyN+EOsEdo cDxi0M1RLVSdw== Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Tue, Nov 17, 2020 at 01:17:54PM -0500, Peter Xu wrote: > Logically this patch should fix that, just like the dpdk scenario where mmio > regions were accessed from userspace (qemu). From that pov, I think this patch > should help. > > Acked-by: Peter Xu Thanks Peter Is there more to do here? Jason