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 E441EC433F5 for ; Thu, 9 Dec 2021 15:28:14 +0000 (UTC) Received: from localhost ([::1]:39476 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mvLLB-0006BH-RU for qemu-devel@archiver.kernel.org; Thu, 09 Dec 2021 10:28:13 -0500 Received: from eggs.gnu.org ([209.51.188.92]:39530) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mvLFo-0006T3-78 for qemu-devel@nongnu.org; Thu, 09 Dec 2021 10:22:40 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.153.124]:56147) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mvLFj-0000Rb-VS for qemu-devel@nongnu.org; Thu, 09 Dec 2021 10:22:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639063355; 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=1X+JRhR36SY6NQ4xAUOJqLr1uZZ52R0BHHJdQdXpuZw=; b=K9Znexb4LCMBEJynV9PwHC8laTK7LR39uaZ/nNJMs+tmCVdnD6VMdXj4dsmFQcfWQ974jc tpIT5YuN+xLdWx4rY7bEKPGjZyHcyZ0/Xppd4DbgWugOxIt3VpcHZ+2HFs5L4IGjC/iu3j Nn/xrSEprACHMhqfi/tYRBtY7EGwK94= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-4--AYQc4ekPM6IHJhjza6IxA-1; Thu, 09 Dec 2021 10:22:32 -0500 X-MC-Unique: -AYQc4ekPM6IHJhjza6IxA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 47080760C0 for ; Thu, 9 Dec 2021 15:22:31 +0000 (UTC) Received: from localhost (unknown [10.39.192.41]) by smtp.corp.redhat.com (Postfix) with ESMTP id E813B19D9F; Thu, 9 Dec 2021 15:22:30 +0000 (UTC) Date: Thu, 9 Dec 2021 15:22:30 +0000 From: "Richard W.M. Jones" To: Thomas Huth Subject: Re: [PATCH v2] Move the libssh setup from configure to meson.build Message-ID: <20211209152230.GL1127@redhat.com> References: <20211209144801.148388-1-thuth@redhat.com> <20211209145501.GK1127@redhat.com> MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=rjones@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=170.10.153.124; envelope-from=rjones@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.618, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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: , Cc: Paolo Bonzini , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Dec 09, 2021 at 04:08:24PM +0100, Thomas Huth wrote: > On 09/12/2021 15.55, Richard W.M. Jones wrote: > >On Thu, Dec 09, 2021 at 03:48:01PM +0100, Thomas Huth wrote: > >>It's easier to do this in meson.build now. > >> > >>Signed-off-by: Thomas Huth > >>--- > >> v2: Added the missing "config_host_data.set('CONFIG_LIBSSH', libssh.found())" > >> > >> configure | 27 --------------------------- > >> meson.build | 13 +++++++++---- > >> meson_options.txt | 2 ++ > >> scripts/meson-buildoptions.sh | 3 +++ > >> 4 files changed, 14 insertions(+), 31 deletions(-) > >> > >>diff --git a/configure b/configure > >>index 48c21775f3..bb99a40ed0 100755 > >>--- a/configure > >>+++ b/configure > >>@@ -344,7 +344,6 @@ debug_stack_usage="no" > >> crypto_afalg="no" > >> tls_priority="NORMAL" > >> tpm="$default_feature" > >>-libssh="$default_feature" > >> live_block_migration=${default_feature:-yes} > >> numa="$default_feature" > >> replication=${default_feature:-yes} > >>@@ -1078,10 +1077,6 @@ for opt do > >> ;; > >> --enable-tpm) tpm="yes" > >> ;; > >>- --disable-libssh) libssh="no" > >>- ;; > >>- --enable-libssh) libssh="yes" > >>- ;; > >> --disable-live-block-migration) live_block_migration="no" > >> ;; > >> --enable-live-block-migration) live_block_migration="yes" > >>@@ -1448,7 +1443,6 @@ cat << EOF > >> live-block-migration Block migration in the main migration stream > >> coroutine-pool coroutine freelist (better performance) > >> tpm TPM support > >>- libssh ssh block device support > >> numa libnuma support > >> avx2 AVX2 optimization support > >> avx512f AVX512F optimization support > >>@@ -2561,21 +2555,6 @@ if test "$modules" = yes; then > >> fi > >> fi > >>-########################################## > >>-# libssh probe > >>-if test "$libssh" != "no" ; then > >>- if $pkg_config --exists "libssh >= 0.8.7"; then > >>- libssh_cflags=$($pkg_config libssh --cflags) > >>- libssh_libs=$($pkg_config libssh --libs) > >>- libssh=yes > >>- else > >>- if test "$libssh" = "yes" ; then > >>- error_exit "libssh required for --enable-libssh" > >>- fi > >>- libssh=no > >>- fi > >>-fi > >>- > >> ########################################## > >> # TPM emulation is only on POSIX > >>@@ -3636,12 +3615,6 @@ if test "$cmpxchg128" = "yes" ; then > >> echo "CONFIG_CMPXCHG128=y" >> $config_host_mak > >> fi > >>-if test "$libssh" = "yes" ; then > >>- echo "CONFIG_LIBSSH=y" >> $config_host_mak > >>- echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak > >>- echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak > >>-fi > >>- > >> if test "$live_block_migration" = "yes" ; then > >> echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak > >> fi > >>diff --git a/meson.build b/meson.build > >>index 96de1a6ef9..ae67ca28ab 100644 > >>--- a/meson.build > >>+++ b/meson.build > >>@@ -874,11 +874,15 @@ if not get_option('glusterfs').auto() or have_block > >> ''', dependencies: glusterfs) > >> endif > >> endif > >>+ > >> libssh = not_found > >>-if 'CONFIG_LIBSSH' in config_host > >>- libssh = declare_dependency(compile_args: config_host['LIBSSH_CFLAGS'].split(), > >>- link_args: config_host['LIBSSH_LIBS'].split()) > >>+if not get_option('libssh').auto() or have_block > >>+ libssh = dependency('libssh', version: '>=0.8.7', > >>+ method: 'pkg-config', > >>+ required: get_option('libssh'), > >>+ kwargs: static_kwargs) > >> endif > >>+ > >> libbzip2 = not_found > >> if not get_option('bzip2').auto() or have_block > >> libbzip2 = cc.find_library('bz2', has_headers: ['bzlib.h'], > >>@@ -1451,6 +1455,7 @@ config_host_data.set('CONFIG_EBPF', libbpf.found()) > >> config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found()) > >> config_host_data.set('CONFIG_LIBISCSI', libiscsi.found()) > >> config_host_data.set('CONFIG_LIBNFS', libnfs.found()) > >>+config_host_data.set('CONFIG_LIBSSH', libssh.found()) > >> config_host_data.set('CONFIG_LINUX_AIO', libaio.found()) > >> config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found()) > >> config_host_data.set('CONFIG_LIBPMEM', libpmem.found()) > >>@@ -3430,7 +3435,7 @@ endif > >> summary_info += {'seccomp support': seccomp} > >> summary_info += {'GlusterFS support': glusterfs} > >> summary_info += {'TPM support': config_host.has_key('CONFIG_TPM')} > >>-summary_info += {'libssh support': config_host.has_key('CONFIG_LIBSSH')} > >>+summary_info += {'libssh support': libssh} > >> summary_info += {'lzo support': lzo} > >> summary_info += {'snappy support': snappy} > >> summary_info += {'bzip2 support': libbzip2} > >>diff --git a/meson_options.txt b/meson_options.txt > >>index e392323732..4114bfcaa4 100644 > >>--- a/meson_options.txt > >>+++ b/meson_options.txt > >>@@ -105,6 +105,8 @@ option('libdaxctl', type : 'feature', value : 'auto', > >> description: 'libdaxctl support') > >> option('libpmem', type : 'feature', value : 'auto', > >> description: 'libpmem support') > >>+option('libssh', type : 'feature', value : 'auto', > >>+ description: 'ssh block device support') > >> option('libudev', type : 'feature', value : 'auto', > >> description: 'Use libudev to enumerate host devices') > >> option('libusb', type : 'feature', value : 'auto', > >>diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh > >>index 7a17ff4218..ae8f18edc2 100644 > >>--- a/scripts/meson-buildoptions.sh > >>+++ b/scripts/meson-buildoptions.sh > >>@@ -53,6 +53,7 @@ meson_options_help() { > >> printf "%s\n" ' libiscsi libiscsi userspace initiator' > >> printf "%s\n" ' libnfs libnfs block device driver' > >> printf "%s\n" ' libpmem libpmem support' > >>+ printf "%s\n" ' libssh ssh block device support' > >> printf "%s\n" ' libudev Use libudev to enumerate host devices' > >> printf "%s\n" ' libusb libusb support for USB passthrough' > >> printf "%s\n" ' libxml2 libxml2 support for Parallels image format' > >>@@ -177,6 +178,8 @@ _meson_option_parse() { > >> --disable-libnfs) printf "%s" -Dlibnfs=disabled ;; > >> --enable-libpmem) printf "%s" -Dlibpmem=enabled ;; > >> --disable-libpmem) printf "%s" -Dlibpmem=disabled ;; > >>+ --enable-libssh) printf "%s" -Dlibssh=enabled ;; > >>+ --disable-libssh) printf "%s" -Dlibssh=disabled ;; > >> --enable-libudev) printf "%s" -Dlibudev=enabled ;; > >> --disable-libudev) printf "%s" -Dlibudev=disabled ;; > >> --enable-libusb) printf "%s" -Dlibusb=enabled ;; > > > >Seems reasonable, ACK. > > Thanks! > > >I should say that my interest in the ssh driver in qemu is not that > >much these days. I've been telling people to use nbdkit-ssh-plugin > >instead. It's more featureful and running it in a separate process is > >probably safer too. > > Then it's maybe time to deprecate the ssh driver in QEMU? Weeeellllll ... I didn't necessarily want to say that. Others may be using it, and deprecating working software causes trouble for some. But I'll let others have their say on this. I will mention that RHEL 9.1 will replace qemu's curl and ssh drivers with nbdkit-curl-plugin and nbdkit-ssh-plugin. For RHEL users this should happen transparently. Libvirt will substitute an external nbdkit process when it sees the appropriate in the XML (all RHEL users are required to use libvirt instead of qemu directly). Of course qemu doesn't need to care about what RHEL does, this is just for your information. https://bugzilla.redhat.com/show_bug.cgi?id=2016527 Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org