From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF31FC67871 for ; Mon, 9 Jan 2023 18:47:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237251AbjAISrZ (ORCPT ); Mon, 9 Jan 2023 13:47:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36410 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237362AbjAISrO (ORCPT ); Mon, 9 Jan 2023 13:47:14 -0500 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63C501A07F; Mon, 9 Jan 2023 10:47:13 -0800 (PST) Received: from zn.tnic (p5de8e9fe.dip0.t-ipconnect.de [93.232.233.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id E62A21EC0104; Mon, 9 Jan 2023 19:47:11 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1673290032; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=11LnUf4MhejKfgisfPSyS9B0B0xaSZCrX17MQeoncqE=; b=sAByOsc/+Oj0INi0+tr34pMFzTLKYdE0Sr9YpSor17uoouv6rwXdWzR47sn0Zolbt29b6f gsg8XJ7C2pb+Kcg1pn60LMqgasxwuYbWtcF9SA0noFAmkwEsX+HalnvnH2QPTIxXMsCoGF qf5/yHPQ0ycrMslQs6xaSQRFnJsU084= Date: Mon, 9 Jan 2023 19:47:08 +0100 From: Borislav Petkov To: Michael Kelley , wei.liu@kernel.org Cc: hpa@zytor.com, kys@microsoft.com, haiyangz@microsoft.com, decui@microsoft.com, luto@kernel.org, peterz@infradead.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, lpieralisi@kernel.org, robh@kernel.org, kw@linux.com, bhelgaas@google.com, arnd@arndb.de, hch@infradead.org, m.szyprowski@samsung.com, robin.murphy@arm.com, thomas.lendacky@amd.com, brijesh.singh@amd.com, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, Tianyu.Lan@microsoft.com, kirill.shutemov@linux.intel.com, sathyanarayanan.kuppuswamy@linux.intel.com, ak@linux.intel.com, isaku.yamahata@intel.com, dan.j.williams@intel.com, jane.chu@oracle.com, seanjc@google.com, tony.luck@intel.com, x86@kernel.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-pci@vger.kernel.org, linux-arch@vger.kernel.org, iommu@lists.linux.dev Subject: Re: [Patch v4 00/13] Add PCI pass-thru support to Hyper-V Confidential VMs Message-ID: References: <1669951831-4180-1-git-send-email-mikelley@microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1669951831-4180-1-git-send-email-mikelley@microsoft.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, Dec 01, 2022 at 07:30:18PM -0800, Michael Kelley wrote: > This patch series adds support for PCI pass-thru devices to Hyper-V > Confidential VMs (also called "Isolation VMs"). But in preparation, it > first changes how private (encrypted) vs. shared (decrypted) memory is > handled in Hyper-V SEV-SNP guest VMs. The new approach builds on the > confidential computing (coco) mechanisms introduced in the 5.19 kernel > for TDX support and significantly reduces the amount of Hyper-V specific > code. Furthermore, with this new approach a proposed RFC patch set for > generic DMA layer functionality[1] is no longer necessary. In any case, this is starting to get ready - how do we merge this? I apply the x86 bits and give Wei an immutable branch to add the rest of the HyperV stuff ontop? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette