From patchwork Mon Mar 6 08:46:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13160708 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 DF2A1C678D4 for ; Mon, 6 Mar 2023 08:47:25 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.506781.779940 (Exim 4.92) (envelope-from ) id 1pZ6V1-0000hA-KX; Mon, 06 Mar 2023 08:47:15 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 506781.779940; Mon, 06 Mar 2023 08:47:15 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V1-0000fg-ES; Mon, 06 Mar 2023 08:47:15 +0000 Received: by outflank-mailman (input) for mailman id 506781; Mon, 06 Mar 2023 08:47:13 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6Uz-0000dk-Sm for xen-devel@lists.xenproject.org; Mon, 06 Mar 2023 08:47:13 +0000 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 7bb705e8-bbfb-11ed-96b4-2f268f93b82a; Mon, 06 Mar 2023 09:47:11 +0100 (CET) Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-480-BweyhluRMwuANh_BPVGZnA-1; Mon, 06 Mar 2023 03:47:06 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6AB3C1C05EB7; Mon, 6 Mar 2023 08:47:05 +0000 (UTC) Received: from thuth.com (unknown [10.39.193.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id 21233440DE; Mon, 6 Mar 2023 08:47:02 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 7bb705e8-bbfb-11ed-96b4-2f268f93b82a X-MC-Unique: BweyhluRMwuANh_BPVGZnA-1 From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk , Wilfred Mallawa , John Paul Adrian Glaubitz Subject: [PATCH v4 1/5] docs/about/deprecated: Deprecate 32-bit x86 hosts for system emulation Date: Mon, 6 Mar 2023 09:46:54 +0100 Message-Id: <20230306084658.29709-2-thuth@redhat.com> In-Reply-To: <20230306084658.29709-1-thuth@redhat.com> References: <20230306084658.29709-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Hardly anybody still uses 32-bit x86 hosts today, so we should start deprecating them to stop wasting our time and CI minutes here. For example, there are also still some unresolved problems with these: When emulating 64-bit binaries in user mode, TCG does not honor atomicity for 64-bit accesses, which is "perhaps worse than not working at all" (quoting Richard). Let's simply make it clear that people should use 64-bit x86 hosts nowadays and we do not intend to fix/maintain the old 32-bit stuff. Reviewed-by: Daniel P. Berrangé Reviewed-by: Wilfred Mallawa Signed-off-by: Thomas Huth --- docs/about/deprecated.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 15084f7bea..1ca9dc33d6 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -196,6 +196,17 @@ CI coverage support may bitrot away before the deprecation process completes. The little endian variants of MIPS (both 32 and 64 bit) are still a supported host architecture. +System emulation on 32-bit x86 hosts (since 8.0) +'''''''''''''''''''''''''''''''''''''''''''''''' + +Support for 32-bit x86 host deployments is increasingly uncommon in mainstream +OS distributions given the widespread availability of 64-bit x86 hardware. +The QEMU project no longer considers 32-bit x86 support for system emulation to +be an effective use of its limited resources, and thus intends to discontinue +it. Since all recent x86 hardware from the past >10 years is capable of the +64-bit x86 extensions, a corresponding 64-bit OS should be used instead. + + QEMU API (QAPI) events ---------------------- From patchwork Mon Mar 6 08:46:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13160711 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 1DBCBC61DA4 for ; Mon, 6 Mar 2023 08:47:26 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.506782.779955 (Exim 4.92) (envelope-from ) id 1pZ6V2-00018P-Qf; Mon, 06 Mar 2023 08:47:16 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 506782.779955; Mon, 06 Mar 2023 08:47:16 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V2-00018I-ML; Mon, 06 Mar 2023 08:47:16 +0000 Received: by outflank-mailman (input) for mailman id 506782; Mon, 06 Mar 2023 08:47:16 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V2-0000ol-2g for xen-devel@lists.xenproject.org; Mon, 06 Mar 2023 08:47:16 +0000 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 7cb2f890-bbfb-11ed-a550-8520e6686977; Mon, 06 Mar 2023 09:47:13 +0100 (CET) Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-212-NkXWXKrvNS6cNOE-ISoWlA-1; Mon, 06 Mar 2023 03:47:08 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 027C487A391; Mon, 6 Mar 2023 08:47:08 +0000 (UTC) Received: from thuth.com (unknown [10.39.193.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id AC35A175AD; Mon, 6 Mar 2023 08:47:05 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 7cb2f890-bbfb-11ed-a550-8520e6686977 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678092431; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=37MyqIGrJ8NDqQYDY+IFgkqLJhkh+Oz/+/sGdhCxVu4=; b=d93zdGY+sC/dp6PQ7r4RRuswWzSmxDJYAbbV1op3/OuLn4cXrFdWqrCdf8h7zeWpA2xdPb Z5vDvXkamjiToVj1vzHZ4npFlx+spxnJO/JNuqiX4JuQHQF0SL6pJZ6UDkzB9Gd6MFcNNz lOEfw9nLUHg67R+kM+/+LzEni1fshAA= X-MC-Unique: NkXWXKrvNS6cNOE-ISoWlA-1 From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk , Wilfred Mallawa , John Paul Adrian Glaubitz Subject: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary Date: Mon, 6 Mar 2023 09:46:55 +0100 Message-Id: <20230306084658.29709-3-thuth@redhat.com> In-Reply-To: <20230306084658.29709-1-thuth@redhat.com> References: <20230306084658.29709-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Aside from not supporting KVM on 32-bit hosts, the qemu-system-x86_64 binary is a proper superset of the qemu-system-i386 binary. With the 32-bit host support being deprecated, it is now also possible to deprecate the qemu-system-i386 binary. With regards to 32-bit KVM support in the x86 Linux kernel, the developers confirmed that they do not need a recent qemu-system-i386 binary here: https://lore.kernel.org/kvm/Y%2ffkTs5ajFy0hP1U@google.com/ Reviewed-by: Daniel P. Berrangé Reviewed-by: Wilfred Mallawa Signed-off-by: Thomas Huth --- docs/about/deprecated.rst | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 1ca9dc33d6..c4fcc6b33c 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -34,6 +34,20 @@ deprecating the build option and no longer defend it in CI. The ``--enable-gcov`` build option remains for analysis test case coverage. +``qemu-system-i386`` binary (since 8.0) +''''''''''''''''''''''''''''''''''''''' + +The ``qemu-system-i386`` binary was mainly useful for running with KVM +on 32-bit x86 hosts, but most Linux distributions already removed their +support for 32-bit x86 kernels, so hardly anybody still needs this. The +``qemu-system-x86_64`` binary is a proper superset and can be used to +run 32-bit guests by selecting a 32-bit CPU model, including KVM support +on x86_64 hosts. Thus users are recommended to reconfigure their systems +to use the ``qemu-system-x86_64`` binary instead. If a 32-bit CPU guest +environment should be enforced, you can switch off the "long mode" CPU +flag, e.g. with ``-cpu max,lm=off``. + + System emulator command line arguments -------------------------------------- From patchwork Mon Mar 6 08:46:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13160710 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 A7EC8C6FD1A for ; Mon, 6 Mar 2023 08:47:26 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.506783.779960 (Exim 4.92) (envelope-from ) id 1pZ6V3-0001CB-6I; Mon, 06 Mar 2023 08:47:17 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 506783.779960; Mon, 06 Mar 2023 08:47:17 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V3-0001Bd-06; Mon, 06 Mar 2023 08:47:17 +0000 Received: by outflank-mailman (input) for mailman id 506783; Mon, 06 Mar 2023 08:47:16 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V2-0000dk-8I for xen-devel@lists.xenproject.org; Mon, 06 Mar 2023 08:47:16 +0000 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 7e407da0-bbfb-11ed-96b4-2f268f93b82a; Mon, 06 Mar 2023 09:47:15 +0100 (CET) Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-221-1imUG1pVNKuXUSYHpP6cUQ-1; Mon, 06 Mar 2023 03:47:11 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9BDFA101A52E; Mon, 6 Mar 2023 08:47:10 +0000 (UTC) Received: from thuth.com (unknown [10.39.193.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id 46752175AD; Mon, 6 Mar 2023 08:47:08 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 7e407da0-bbfb-11ed-96b4-2f268f93b82a DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678092434; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oOdHjT9I3a98EaTtzARQkAnvMgS9UeiFJMCcEWuHsDg=; b=DjAt4GJOOkGvRm5K2/rky9P1UeeDEp6qpryOkVblpWoOtXgwMuYKQ+21PLrkd2NLmkqTsL bleh6d+LTi/u/I6AUnmVMQe9N/A4AsVXlT1sgW/MNrOLlA3PPpb2xqKUAIaM8xu0QYjbiY a2kmrqa+nTE2lDSkR9O+X4bpmI7u8yA= X-MC-Unique: 1imUG1pVNKuXUSYHpP6cUQ-1 From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk , Wilfred Mallawa , John Paul Adrian Glaubitz Subject: [PATCH v4 3/5] gitlab-ci.d/crossbuilds: Drop the i386 system emulation job Date: Mon, 6 Mar 2023 09:46:56 +0100 Message-Id: <20230306084658.29709-4-thuth@redhat.com> In-Reply-To: <20230306084658.29709-1-thuth@redhat.com> References: <20230306084658.29709-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Hardly anybody still uses 32-bit x86 environments for running QEMU with full system emulation, so let's stop wasting our scarce CI minutes with this job. (There are still the 32-bit MinGW and TCI jobs around for having some compile test coverage on 32-bit) Reviewed-by: Daniel P. Berrangé Reviewed-by: Wilfred Mallawa Signed-off-by: Thomas Huth Reviewed-by: Philippe Mathieu-Daudé --- .gitlab-ci.d/crossbuilds.yml | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/.gitlab-ci.d/crossbuilds.yml b/.gitlab-ci.d/crossbuilds.yml index d3a31a2112..a25cb87ae4 100644 --- a/.gitlab-ci.d/crossbuilds.yml +++ b/.gitlab-ci.d/crossbuilds.yml @@ -43,16 +43,6 @@ cross-arm64-user: variables: IMAGE: debian-arm64-cross -cross-i386-system: - extends: - - .cross_system_build_job - - .cross_test_artifacts - needs: - job: i386-fedora-cross-container - variables: - IMAGE: fedora-i386-cross - MAKE_CHECK_ARGS: check-qtest - cross-i386-user: extends: - .cross_user_build_job From patchwork Mon Mar 6 08:46:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13160712 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 386F9C6FD1D for ; Mon, 6 Mar 2023 08:47:27 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.506784.779975 (Exim 4.92) (envelope-from ) id 1pZ6V7-0001jl-FG; Mon, 06 Mar 2023 08:47:21 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 506784.779975; Mon, 06 Mar 2023 08:47:21 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V7-0001jX-BB; Mon, 06 Mar 2023 08:47:21 +0000 Received: by outflank-mailman (input) for mailman id 506784; Mon, 06 Mar 2023 08:47:19 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V5-0000dk-TJ for xen-devel@lists.xenproject.org; Mon, 06 Mar 2023 08:47:19 +0000 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 80609d35-bbfb-11ed-96b4-2f268f93b82a; Mon, 06 Mar 2023 09:47:19 +0100 (CET) Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-67-cbgnrg-hNoiPEn6lO3Smbg-1; Mon, 06 Mar 2023 03:47:14 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 54444185A7A4; Mon, 6 Mar 2023 08:47:13 +0000 (UTC) Received: from thuth.com (unknown [10.39.193.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id DF4AC440DE; Mon, 6 Mar 2023 08:47:10 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 80609d35-bbfb-11ed-96b4-2f268f93b82a DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678092437; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Tu4fLVUa5CKH9yGWFtuNR/Tn/c+l+6gsZNxsu/a/pnc=; b=ByIlNLDwb6LDeAYU+vUZHPccOcfthy0mS9BpjFlsIrHH8CXMd58EPcbp7MM/QO7o8/Mild TLoa86NJ13xrie3btLLnWHZYhSmyrncL/SegN+/whM49QdsCzIXJg8009GTL9rJrfSA3V+ QbwoWyCpvIgS9HdeYh80k7Qft3gN3Zs= X-MC-Unique: cbgnrg-hNoiPEn6lO3Smbg-1 From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk , Wilfred Mallawa , John Paul Adrian Glaubitz Subject: [PATCH v4 4/5] docs/about/deprecated: Deprecate 32-bit arm hosts for system emulation Date: Mon, 6 Mar 2023 09:46:57 +0100 Message-Id: <20230306084658.29709-5-thuth@redhat.com> In-Reply-To: <20230306084658.29709-1-thuth@redhat.com> References: <20230306084658.29709-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 For running QEMU in system emulation mode, the user needs a rather strong host system, i.e. not only an embedded low-frequency controller. All recent beefy arm host machines should support 64-bit now, it's unlikely that anybody is still seriously using QEMU on a 32-bit arm CPU, so we deprecate the 32-bit arm hosts here to finally save use some time and precious CI minutes. Reviewed-by: Daniel P. Berrangé Reviewed-by: Wilfred Mallawa Signed-off-by: Thomas Huth Reviewed-by: Philippe Mathieu-Daudé Acked-by: Richard Henderson --- docs/about/deprecated.rst | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index c4fcc6b33c..f0de517dc2 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -220,6 +220,15 @@ be an effective use of its limited resources, and thus intends to discontinue it. Since all recent x86 hardware from the past >10 years is capable of the 64-bit x86 extensions, a corresponding 64-bit OS should be used instead. +System emulation on 32-bit arm hosts (since 8.0) +'''''''''''''''''''''''''''''''''''''''''''''''' + +Since QEMU needs a strong host machine for running full system emulation, and +all recent powerful arm hosts support 64-bit, the QEMU project deprecates the +support for running any system emulation on 32-bit arm hosts in general. Use +64-bit arm hosts for system emulation instead. (Note: "user" mode emulation +continuous to be supported on 32-bit arm hosts, too) + QEMU API (QAPI) events ---------------------- From patchwork Mon Mar 6 08:46:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13160713 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 4BF04C678D4 for ; Mon, 6 Mar 2023 08:47:30 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.506785.779985 (Exim 4.92) (envelope-from ) id 1pZ6V9-00022I-PJ; Mon, 06 Mar 2023 08:47:23 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 506785.779985; Mon, 06 Mar 2023 08:47:23 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V9-000221-Ll; Mon, 06 Mar 2023 08:47:23 +0000 Received: by outflank-mailman (input) for mailman id 506785; Mon, 06 Mar 2023 08:47:22 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pZ6V8-0000dk-To for xen-devel@lists.xenproject.org; Mon, 06 Mar 2023 08:47:22 +0000 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 822d7c10-bbfb-11ed-96b4-2f268f93b82a; Mon, 06 Mar 2023 09:47:22 +0100 (CET) Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-534-DmKCntfRM1qxeZT9MJ-5Eg-1; Mon, 06 Mar 2023 03:47:16 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 188F43813F2F; Mon, 6 Mar 2023 08:47:16 +0000 (UTC) Received: from thuth.com (unknown [10.39.193.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id 92FC3175AD; Mon, 6 Mar 2023 08:47:13 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 822d7c10-bbfb-11ed-96b4-2f268f93b82a DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678092441; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4T9cplH6CcELavmnQDL+WvQDU+eNL+kdMeEtlFvM8H4=; b=jThZ/X3t7qjLsFky59u0JMwMERLIW3z6thHSHWI+Bx7WIgzDXSISBzw6sF2MSWvtOfDIFH TmvZ3Ze4jOrO2Kk4uplPDo8X2F3Y0zMkdK7tG/5ZcxsyBkV9FcURe0+96XSkvSCgbo1LnT WnCjdzqr3yPN1wchTab5pKCpSpunyUY= X-MC-Unique: DmKCntfRM1qxeZT9MJ-5Eg-1 From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk , Wilfred Mallawa , John Paul Adrian Glaubitz Subject: [PATCH v4 5/5] gitlab-ci.d/crossbuilds: Drop the 32-bit arm system emulation jobs Date: Mon, 6 Mar 2023 09:46:58 +0100 Message-Id: <20230306084658.29709-6-thuth@redhat.com> In-Reply-To: <20230306084658.29709-1-thuth@redhat.com> References: <20230306084658.29709-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Hardly anybody still uses 32-bit arm environments for running QEMU, so let's stop wasting our scarce CI minutes with these jobs. Reviewed-by: Daniel P. Berrangé Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Wilfred Mallawa Signed-off-by: Thomas Huth --- .gitlab-ci.d/crossbuilds.yml | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/.gitlab-ci.d/crossbuilds.yml b/.gitlab-ci.d/crossbuilds.yml index a25cb87ae4..61b8ac86ee 100644 --- a/.gitlab-ci.d/crossbuilds.yml +++ b/.gitlab-ci.d/crossbuilds.yml @@ -1,13 +1,6 @@ include: - local: '/.gitlab-ci.d/crossbuild-template.yml' -cross-armel-system: - extends: .cross_system_build_job - needs: - job: armel-debian-cross-container - variables: - IMAGE: debian-armel-cross - cross-armel-user: extends: .cross_user_build_job needs: @@ -15,13 +8,6 @@ cross-armel-user: variables: IMAGE: debian-armel-cross -cross-armhf-system: - extends: .cross_system_build_job - needs: - job: armhf-debian-cross-container - variables: - IMAGE: debian-armhf-cross - cross-armhf-user: extends: .cross_user_build_job needs: