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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F2391C83013 for ; Wed, 2 Jul 2025 09:12:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uWtVX-0007uu-K7; Wed, 02 Jul 2025 05:11:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uWtVV-0007uf-2s for qemu-devel@nongnu.org; Wed, 02 Jul 2025 05:11:57 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uWtVS-0007NW-2y for qemu-devel@nongnu.org; Wed, 02 Jul 2025 05:11:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1751447511; 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: in-reply-to:in-reply-to:references:references; bh=nTeiDQfgTpuLIfDJVU4DnZ+Vs01tDZ/Gh0tPGf0RwYs=; b=fouSWhilcWqvif1Xsf3z1jZHuxl2Z7tLtbG9upLfKkVBzr7fZgRYS4prWNnQTdtBQo14qH nQ0sQFGlcQRrpITDGBXKo+xi+c5LLQBY9D48m4sMkXwquBgD0AC4ih38hp4vBSkgAK1E+N 1l9zZqOqnqaU+q/sZMjC5nqpP4+r1a4= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-627-TkJf2VLIPnmOb352FoxrbA-1; Wed, 02 Jul 2025 05:11:47 -0400 X-MC-Unique: TkJf2VLIPnmOb352FoxrbA-1 X-Mimecast-MFC-AGG-ID: TkJf2VLIPnmOb352FoxrbA_1751447506 Received: from mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.15]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 834CD180136B; Wed, 2 Jul 2025 09:11:45 +0000 (UTC) Received: from localhost (dhcp-192-236.str.redhat.com [10.33.192.236]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 15A8E1956087; Wed, 2 Jul 2025 09:11:43 +0000 (UTC) From: Cornelia Huck To: Magnus Kulke , qemu-devel@nongnu.org Cc: Cameron Esfahani , Phil Dennis-Jordan , Roman Bolshakov , Thomas Huth , Zhao Liu , Wei Liu , Paolo Bonzini , Wei Liu , Richard Henderson , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , Markus Armbruster , Magnus Kulke , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau , "Michael S. Tsirkin" , =?utf-8?Q?Daniel_P=2E_Berrang=C3=A9?= , Alex =?utf-8?Q?Benn=C3=A9e?= Subject: Re: [PATCH v2 05/27] include/hw/hyperv: Add MSHV ABI header definitions In-Reply-To: <20250701172834.44849-6-magnuskulke@linux.microsoft.com> Organization: "Red Hat GmbH, Sitz: Werner-von-Siemens-Ring 12, D-85630 Grasbrunn, Handelsregister: Amtsgericht =?utf-8?Q?M=C3=BCnchen=2C?= HRB 153243, =?utf-8?Q?Gesch=C3=A4ftsf=C3=BChrer=3A?= Ryan Barnhart, Charles Cachera, Avril Crosse O'Flaherty" References: <20250701172834.44849-1-magnuskulke@linux.microsoft.com> <20250701172834.44849-6-magnuskulke@linux.microsoft.com> User-Agent: Notmuch/0.38.3 (https://notmuchmail.org) Date: Wed, 02 Jul 2025 11:11:41 +0200 Message-ID: <8734bfq7n6.fsf@redhat.com> MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 Received-SPF: pass client-ip=170.10.129.124; envelope-from=cohuck@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Tue, Jul 01 2025, Magnus Kulke wrote: > Introduce headers for the Microsoft Hypervisor (MSHV) userspace ABI, > including IOCTLs and structures used to interface with the hypervisor. > > These definitions are based on the upstream Linux MSHV interface and > will be used by the MSHV accelerator backend in later patches. > > Note that for the time being the header `linux-mshv.h` is also being > included to allow building on machines that do not ship the header yet. > The header will be available in kernel 6.15 (at the time of writing > we're at -rc6) we will probably drop it in later revisions of the > patch set. The right way to handle header updates is to split the linux-header updates into a "dummy" update (that just adds the header) and replace that patch with a proper header update once the changes hit Linux mainline. I have not looked at the contents of the series otherwise -- but if this is a system header (and not something that defines the kernel<->vmm interface), how do you make sure that your system has that installed? Maybe I'm misunderstanding.