From nobody Fri Nov 7 10:27:12 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1547573938965593.2933732153592; Tue, 15 Jan 2019 09:38:58 -0800 (PST) Received: from localhost ([127.0.0.1]:58088 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gjSfx-0006ja-SC for importer@patchew.org; Tue, 15 Jan 2019 12:38:57 -0500 Received: from eggs.gnu.org ([209.51.188.92]:56125) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gjSaq-0002kD-Ej for qemu-devel@nongnu.org; Tue, 15 Jan 2019 12:33:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gjSao-0007op-Ki for qemu-devel@nongnu.org; Tue, 15 Jan 2019 12:33:40 -0500 Received: from mail-wr1-x443.google.com ([2a00:1450:4864:20::443]:40950) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gjSao-0007mL-8s for qemu-devel@nongnu.org; Tue, 15 Jan 2019 12:33:38 -0500 Received: by mail-wr1-x443.google.com with SMTP id p4so3915886wrt.7 for ; Tue, 15 Jan 2019 09:33:34 -0800 (PST) Received: from 640k.lan ([93.56.166.5]) by smtp.gmail.com with ESMTPSA id n9sm62982018wrx.80.2019.01.15.09.33.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 15 Jan 2019 09:33:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=j7ie273QGmpHfjZ3LzNxQXj0HFKAlk5GovzY0WuD1ls=; b=k+CUidEZfCqvSh9LP2Abo1U4bqDncu+40suRCm2y7g3o1fFv9cr+FLQjTcBQGDOQEP FtYiYvTdby+rTVqrSlX2qH1QL38qWDiV7CazXtyMPZ8jYKR8xSZQyzjimw/IPVydojfR ZwnPrlTTCJmVMZ7E5zsbPibU3HjmARBlupJbp4K/MzIqw3FjNF3lGOI+H08VuUUQBip6 qgoEjUwbRLDjxpJv38/uhASe40Hmhx+tH09tIDx5Z1jxSJtdCFYh3HIZJqGXgEfjUHOv jsReeFuqMaw8TfUdG/H3DhCuBQVSlj8o2+9pSzli85hwG0ibbl0ynA6CxCHtOrmPzs03 vGcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=j7ie273QGmpHfjZ3LzNxQXj0HFKAlk5GovzY0WuD1ls=; b=lxWOElcjCHg6jBMQ7uFu/Hnp09TXdSrG6o3N4bGv+60pUyo1nScSXIe05yH5coRvlL HoOJSSysJsPKFi8uD9R4Or8ne1TFwiAbmQSjQDTYRBI/A+DRaGgeJVirNh6Spe8ty8Yg Y5Lu/HUeEma/alEV/8LOaJGO/Vobyh/B08zjQ4wg+5vbbaqITZwkn3yC4U8ri2QaqeCw ds3KCtPxXoLoux0sAg6Xkj5vB6/zDesVRGramgg8oPIKltGkbXMWwXcu1WGqt0d3LwYz QZ3Su2lKfuY8+lEijLofLiOVaUMJlKLJXlZqkuS8XSoyu6sA/ijAoR2fzAXSpSmOPu4j KO1A== X-Gm-Message-State: AJcUukcRnrMzJlMIaom+9cng5tMoyC4dsTv/YUxePC8ky+FRgWYoq2uc P+kwv5AtMZzLy2IRSavjI4B1uWBt X-Google-Smtp-Source: ALg8bN5ROPC2l/wY5Wbp3IoGbbiehjJVU4MvvtRK4MsKGCb0M9bv5PBanE/bx3B8FDBRP2WfaOyy5w== X-Received: by 2002:adf:db51:: with SMTP id f17mr3911135wrj.90.1547573613365; Tue, 15 Jan 2019 09:33:33 -0800 (PST) From: Paolo Bonzini To: qemu-devel@nongnu.org Date: Tue, 15 Jan 2019 18:33:25 +0100 Message-Id: <1547573605-25711-6-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1547573605-25711-1-git-send-email-pbonzini@redhat.com> References: <1547573605-25711-1-git-send-email-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::443 Subject: [Qemu-devel] [PATCH 5/5] vhost-net: revamp configure logic X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: philmd@redhat.com, mst@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Detect all invalid configurations (e.g. mingw32 with vhost-user, non-Linux with vhost-kernel). As a collateral benefit, all vhost-kernel backends can be now disabled if one wants to reduce the attack surface. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Paolo Bonzini Reviewed-by: Thomas Huth Message-Id: <1543851204-41186-6-git-send-email-pbonzini@redhat.com> --- configure | 89 +++++++++++++++++++++++++++++++------------= ---- hw/virtio/Makefile.objs | 4 +-- hw/virtio/vhost-backend.c | 4 +-- 3 files changed, 63 insertions(+), 34 deletions(-) diff --git a/configure b/configure index 87f2d15..3126e20 100755 --- a/configure +++ b/configure @@ -366,10 +366,10 @@ libattr=3D"" xfs=3D"" tcg=3D"yes" membarrier=3D"" -vhost_net=3D"no" -vhost_crypto=3D"no" -vhost_scsi=3D"no" -vhost_vsock=3D"no" +vhost_net=3D"" +vhost_crypto=3D"" +vhost_scsi=3D"" +vhost_vsock=3D"" vhost_user=3D"" kvm=3D"no" hax=3D"no" @@ -781,6 +781,7 @@ case $targetos in MINGW32*) mingw32=3D"yes" hax=3D"yes" + vhost_user=3D"no" audio_possible_drivers=3D"dsound sdl" if check_include dsound.h; then audio_drv_list=3D"dsound" @@ -881,10 +882,6 @@ Linux) linux=3D"yes" linux_user=3D"yes" kvm=3D"yes" - vhost_net=3D"yes" - vhost_crypto=3D"yes" - vhost_scsi=3D"yes" - vhost_vsock=3D"yes" QEMU_INCLUDES=3D"-I\$(SRC_PATH)/linux-headers -I$PWD/linux-headers $QEMU= _INCLUDES" supported_os=3D"yes" libudev=3D"yes" @@ -1262,11 +1259,7 @@ for opt do ;; --disable-vhost-crypto) vhost_crypto=3D"no" ;; - --enable-vhost-crypto) - vhost_crypto=3D"yes" - if test "$mingw32" =3D "yes"; then - error_exit "vhost-crypto isn't available on win32" - fi + --enable-vhost-crypto) vhost_crypto=3D"yes" ;; --disable-vhost-scsi) vhost_scsi=3D"no" ;; @@ -1471,11 +1464,11 @@ for opt do ;; --disable-vhost-user) vhost_user=3D"no" ;; - --enable-vhost-user) - vhost_user=3D"yes" - if test "$mingw32" =3D "yes"; then - error_exit "vhost-user isn't available on win32" - fi + --enable-vhost-user) vhost_user=3D"yes" + ;; + --disable-vhost-kernel) vhost_kernel=3D"no" + ;; + --enable-vhost-kernel) vhost_kernel=3D"yes" ;; --disable-capstone) capstone=3D"no" ;; @@ -1507,14 +1500,6 @@ for opt do esac done =20 -if test "$vhost_user" =3D ""; then - if test "$mingw32" =3D "yes"; then - vhost_user=3D"no" - else - vhost_user=3D"yes" - fi -fi - case "$cpu" in ppc) CPU_CFLAGS=3D"-m32" @@ -1739,8 +1724,12 @@ disabled with --disable-FEATURE, default is enabled = if available: linux-aio Linux AIO support cap-ng libcap-ng support attr attr and xattr support - vhost-net vhost-net acceleration support - vhost-crypto vhost-crypto acceleration support + vhost-net vhost-net kernel acceleration support + vhost-vsock virtio sockets device support + vhost-scsi vhost-scsi kernel target support + vhost-crypto vhost-user-crypto backend support + vhost-kernel vhost kernel backend support + vhost-user vhost-user backend support spice spice rbd rados block device (rbd) libiscsi iscsi support @@ -1766,7 +1755,6 @@ disabled with --disable-FEATURE, default is enabled i= f available: jemalloc jemalloc support avx2 AVX2 optimization support replication replication support - vhost-vsock virtio sockets device support opengl opengl support virglrenderer virgl rendering support xfsctl xfsctl support @@ -1783,7 +1771,6 @@ disabled with --disable-FEATURE, default is enabled i= f available: parallels parallels image format support sheepdog sheepdog block driver support crypto-afalg Linux AF_ALG crypto backend driver - vhost-user vhost-user support capstone capstone disassembler support debug-mutex mutex debugging support libpmem libpmem support @@ -2171,6 +2158,45 @@ else l2tpv3=3Dno fi =20 +######################################### +# vhost interdependencies and host support + +# vhost backends +test "$vhost_user" =3D "" && vhost_user=3Dyes +if test "$vhost_user" =3D "yes" && test "$mingw32" =3D "yes"; then + error_exit "vhost-user isn't available on win32" +fi +test "$vhost_kernel" =3D "" && vhost_kernel=3D$linux +if test "$vhost_kernel" =3D "yes" && test "$linux" !=3D "yes"; then + error_exit "vhost-kernel is only available on Linux" +fi + +# vhost-kernel devices +test "$vhost_scsi" =3D "" && vhost_scsi=3D$vhost_kernel +if test "$vhost_scsi" =3D "yes" && test "$vhost_kernel" !=3D "yes"; then + error_exit "--enable-vhost-scsi requires --enable-vhost-kernel" +fi +test "$vhost_vsock" =3D "" && vhost_vsock=3D$vhost_kernel +if test "$vhost_vsock" =3D "yes" && test "$vhost_kernel" !=3D "yes"; then + error_exit "--enable-vhost-vsock requires --enable-vhost-kernel" +fi + +# vhost-user backends +test "$vhost_net_user" =3D "" && vhost_net_user=3D$vhost_user +if test "$vhost_net_user" =3D "yes" && test "$vhost_user" =3D "no"; then + error_exit "--enable-vhost-net-user requires --enable-vhost-user" +fi +test "$vhost_crypto" =3D "" && vhost_crypto=3D$vhost_user +if test "$vhost_crypto" =3D "yes" && test "$vhost_user" =3D "no"; then + error_exit "--enable-vhost-crypto requires --enable-vhost-user" +fi + +# OR the vhost-kernel and vhost-user values for simplicity +if test "$vhost_net" =3D ""; then + test "$vhost_net_user" =3D "yes" && vhost_net=3Dyes + test "$vhost_kernel" =3D "yes" && vhost_net=3Dyes +fi + ########################################## # MinGW / Mingw-w64 localtime_r/gmtime_r check =20 @@ -6576,6 +6602,9 @@ fi if test "$vhost_vsock" =3D "yes" ; then echo "CONFIG_VHOST_VSOCK=3Dy" >> $config_host_mak fi +if test "$vhost_kernel" =3D "yes" ; then + echo "CONFIG_VHOST_KERNEL=3Dy" >> $config_host_mak +fi if test "$vhost_user" =3D "yes" ; then echo "CONFIG_VHOST_USER=3Dy" >> $config_host_mak fi diff --git a/hw/virtio/Makefile.objs b/hw/virtio/Makefile.objs index e8eff80..87402d1 100644 --- a/hw/virtio/Makefile.objs +++ b/hw/virtio/Makefile.objs @@ -11,8 +11,8 @@ obj-$(call land,$(CONFIG_VIRTIO_CRYPTO),$(CONFIG_VIRTIO_P= CI)) +=3D virtio-crypto-p =20 obj-$(CONFIG_VHOST_USER) +=3D vhost-user.o obj-$(CONFIG_VHOST_VSOCK) +=3D vhost-vsock.o -obj-$(call lor,$(CONFIG_VHOST_USER),$(CONFIG_LINUX)) +=3D vhost.o vhost-ba= ckend.o -common-obj-$(call lnot,$(call lor,$(CONFIG_VHOST_USER),$(CONFIG_LINUX))) += =3D vhost-stub.o +obj-$(call lor,$(CONFIG_VHOST_USER),$(CONFIG_VHOST_KERNEL)) +=3D vhost.o v= host-backend.o +common-obj-$(call lnot,$(call lor,$(CONFIG_VHOST_USER),$(CONFIG_VHOST_KERN= EL))) +=3D vhost-stub.o endif =20 common-obj-$(CONFIG_ALL) +=3D vhost-stub.o diff --git a/hw/virtio/vhost-backend.c b/hw/virtio/vhost-backend.c index e0f0bb7..96b8d3c 100644 --- a/hw/virtio/vhost-backend.c +++ b/hw/virtio/vhost-backend.c @@ -14,7 +14,7 @@ #include "qemu/error-report.h" #include "standard-headers/linux/vhost_types.h" =20 -#ifdef CONFIG_LINUX +#ifdef CONFIG_VHOST_KERNEL #include #include =20 @@ -275,7 +275,7 @@ int vhost_set_backend_type(struct vhost_dev *dev, Vhost= BackendType backend_type) int r =3D 0; =20 switch (backend_type) { -#ifdef CONFIG_LINUX +#ifdef CONFIG_VHOST_KERNEL case VHOST_BACKEND_TYPE_KERNEL: dev->vhost_ops =3D &kernel_ops; break; --=20 1.8.3.1