From nobody Mon Feb 9 11:40:48 2026 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; 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 ARC-Seal: i=1; a=rsa-sha256; t=1557772774; cv=none; d=zoho.com; s=zohoarc; b=MLinc/YAeBmO76juP28k8EJ48hVcf74FDPAoluo0hJlw4nUwPCf3iWnxr/o5l97EVAlxkNVefhIV3yl9inTwrsE33W3QrHm8Aa0KYZdr6ttDrxLRfdJ/crImGlzqZBmXLvGVVkTUquGKglgMfgDvc1Z4jzbSwHvEGtsuVdkmDBI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1557772774; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=seJClUB+VZXp2ky7DXhrt6glD4xphNgJdt2DJ/rn/DE=; b=oRtHso2ZvFwzgYFGJ4zTWXGPFr0twkPUt/luGFvtbHI9095utcqB8aTWudKcNwImIl5Dafw2buHNbhXWnhPsrZy7fuw+8IycUqOwqQe+dgDdf1fiLkjPBQg9kZJfsTld56wzyuGHYZdSlFbbVctk6MOfDDKkyiou5a7+n9CK9GI= ARC-Authentication-Results: i=1; mx.zoho.com; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 155777277440754.21093432017835; Mon, 13 May 2019 11:39:34 -0700 (PDT) Received: from localhost ([127.0.0.1]:33431 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hQFrA-0001xi-8T for importer@patchew.org; Mon, 13 May 2019 14:39:24 -0400 Received: from eggs.gnu.org ([209.51.188.92]:55793) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hQFlY-0006i3-W1 for qemu-devel@nongnu.org; Mon, 13 May 2019 14:33:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hQFlX-0003Y9-SU for qemu-devel@nongnu.org; Mon, 13 May 2019 14:33:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47298) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hQFlX-0003XK-N9 for qemu-devel@nongnu.org; Mon, 13 May 2019 14:33:35 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0FB3619CBC4 for ; Mon, 13 May 2019 18:33:35 +0000 (UTC) Received: from localhost (unknown [10.36.112.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id 973035C206; Mon, 13 May 2019 18:33:34 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Mon, 13 May 2019 20:33:23 +0200 Message-Id: <20190513183325.8596-2-marcandre.lureau@redhat.com> In-Reply-To: <20190513183325.8596-1-marcandre.lureau@redhat.com> References: <20190513183325.8596-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Mon, 13 May 2019 18:33:35 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 1/3] libvhost-user: fix cast warnings on 32 bits 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Gerd Hoffmann , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Fixes warnings: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] Signed-off-by: Marc-Andr=C3=A9 Lureau --- contrib/libvhost-user/libvhost-user.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/= libvhost-user.c index 74d42177c5..40443a3daa 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -621,7 +621,7 @@ vu_set_mem_table_exec_postcopy(VuDev *dev, VhostUserMsg= *vmsg) * data that's already arrived in the shared process. * TODO: How to do hugepage */ - ret =3D madvise((void *)dev_region->mmap_addr, + ret =3D madvise((void *)(uintptr_t)dev_region->mmap_addr, dev_region->size + dev_region->mmap_offset, MADV_DONTNEED); if (ret) { @@ -633,7 +633,7 @@ vu_set_mem_table_exec_postcopy(VuDev *dev, VhostUserMsg= *vmsg) * in neighbouring pages. * TODO: Turn this backon later. */ - ret =3D madvise((void *)dev_region->mmap_addr, + ret =3D madvise((void *)(uintptr_t)dev_region->mmap_addr, dev_region->size + dev_region->mmap_offset, MADV_NOHUGEPAGE); if (ret) { @@ -666,7 +666,7 @@ vu_set_mem_table_exec_postcopy(VuDev *dev, VhostUserMsg= *vmsg) DPRINT("%s: region %d: Registered userfault for %llx + %llx\n", __func__, i, reg_struct.range.start, reg_struct.range.len); /* Now it's registered we can let the client at it */ - if (mprotect((void *)dev_region->mmap_addr, + if (mprotect((void *)(uintptr_t)dev_region->mmap_addr, dev_region->size + dev_region->mmap_offset, PROT_READ | PROT_WRITE)) { vu_panic(dev, "failed to mprotect region %d for postcopy (%s)", --=20 2.21.0.777.g83232e3864 From nobody Mon Feb 9 11:40:48 2026 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; 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; 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dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1557772578877901.4585932857002; Mon, 13 May 2019 11:36:18 -0700 (PDT) Received: from localhost ([127.0.0.1]:33409 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hQFo3-00083q-MM for importer@patchew.org; Mon, 13 May 2019 14:36:11 -0400 Received: from eggs.gnu.org ([209.51.188.92]:55848) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hQFlg-0006pl-Tu for qemu-devel@nongnu.org; Mon, 13 May 2019 14:33:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hQFlf-0003fc-VE for qemu-devel@nongnu.org; Mon, 13 May 2019 14:33:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45018) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hQFlf-0003ep-Q3 for qemu-devel@nongnu.org; Mon, 13 May 2019 14:33:43 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 26975307FBCB for ; Mon, 13 May 2019 18:33:43 +0000 (UTC) Received: from localhost (unknown [10.36.112.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6906C60856; Mon, 13 May 2019 18:33:36 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Mon, 13 May 2019 20:33:24 +0200 Message-Id: <20190513183325.8596-3-marcandre.lureau@redhat.com> In-Reply-To: <20190513183325.8596-1-marcandre.lureau@redhat.com> References: <20190513183325.8596-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Mon, 13 May 2019 18:33:43 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 2/3] libvhost-user: fix -Werror=format= on ppc64 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Gerd Hoffmann , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" That should fix the following warning: /home/pm215/qemu/contrib/libvhost-user/libvhost-user.c: In function =E2=80=98vu_set_mem_table_exec_postcopy=E2=80=99: /home/pm215/qemu/contrib/libvhost-user/libvhost-user.c:666:9: error: format =E2=80=98%llx=E2=80=99 expects argument of type =E2=80=98long long u= nsigned int=E2=80=99, but argument 5 has type =E2=80=98__u64=E2=80=99 [-Werror=3Dformat=3D] DPRINT("%s: region %d: Registered userfault for %llx + %llx\n", ^ /home/pm215/qemu/contrib/libvhost-user/libvhost-user.c:666:9: error: format =E2=80=98%llx=E2=80=99 expects argument of type =E2=80=98long long u= nsigned int=E2=80=99, but argument 6 has type =E2=80=98__u64=E2=80=99 [-Werror=3Dformat=3D] cc1: all warnings being treated as errors Signed-off-by: Marc-Andr=C3=A9 Lureau --- contrib/libvhost-user/libvhost-user.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/= libvhost-user.c index 40443a3daa..b56325f485 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -663,8 +663,9 @@ vu_set_mem_table_exec_postcopy(VuDev *dev, VhostUserMsg= *vmsg) __func__, i); return false; } - DPRINT("%s: region %d: Registered userfault for %llx + %llx\n", - __func__, i, reg_struct.range.start, reg_struct.range.len); + DPRINT("%s: region %d: Registered userfault for %" + PRIu64 " + %" PRIu64 "\n", + __func__, i, reg_struct.range.start, reg_struct.range.len); /* Now it's registered we can let the client at it */ if (mprotect((void *)(uintptr_t)dev_region->mmap_addr, dev_region->size + dev_region->mmap_offset, --=20 2.21.0.777.g83232e3864 From nobody Mon Feb 9 11:40:48 2026 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; 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 ARC-Seal: i=1; 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Mon, 13 May 2019 18:33:51 +0000 (UTC) Received: from localhost (unknown [10.36.112.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id A867A5C1B4; Mon, 13 May 2019 18:33:44 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Date: Mon, 13 May 2019 20:33:25 +0200 Message-Id: <20190513183325.8596-4-marcandre.lureau@redhat.com> In-Reply-To: <20190513183325.8596-1-marcandre.lureau@redhat.com> References: <20190513183325.8596-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Mon, 13 May 2019 18:33:51 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 3/3] contrib: add vhost-user-input 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: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Gerd Hoffmann , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Add a vhost-user input backend example, based on virtio-input-host device. It takes an evdev path as argument, and can be associated with a vhost-user-input device via a UNIX socket: $ vhost-user-input -p /dev/input/eventX -s /tmp/vui.sock $ qemu ... -chardev socket,id=3Dvuic,path=3D/tmp/vui.sock -device vhost-user-input-pci,chardev=3Dvuic This example is intentionally not included in $TOOLS, and not installed by default. Signed-off-by: Marc-Andr=C3=A9 Lureau --- contrib/vhost-user-input/main.c | 393 +++++++++++++++++++++++++ MAINTAINERS | 1 + Makefile | 11 + Makefile.objs | 1 + contrib/vhost-user-input/Makefile.objs | 1 + 5 files changed, 407 insertions(+) create mode 100644 contrib/vhost-user-input/main.c create mode 100644 contrib/vhost-user-input/Makefile.objs diff --git a/contrib/vhost-user-input/main.c b/contrib/vhost-user-input/mai= n.c new file mode 100644 index 0000000000..8d493f598e --- /dev/null +++ b/contrib/vhost-user-input/main.c @@ -0,0 +1,393 @@ +/* + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ + +#include "qemu/osdep.h" + +#include +#include + +#include "qemu/iov.h" +#include "qemu/bswap.h" +#include "qemu/sockets.h" +#include "contrib/libvhost-user/libvhost-user.h" +#include "contrib/libvhost-user/libvhost-user-glib.h" +#include "standard-headers/linux/virtio_input.h" +#include "qapi/error.h" + +typedef struct virtio_input_event virtio_input_event; +typedef struct virtio_input_config virtio_input_config; + +typedef struct VuInput { + VugDev dev; + GSource *evsrc; + int evdevfd; + GArray *config; + virtio_input_config *sel_config; + struct { + virtio_input_event event; + VuVirtqElement *elem; + } *queue; + uint32_t qindex, qsize; +} VuInput; + +static void vi_input_send(VuInput *vi, struct virtio_input_event *event) +{ + VuDev *dev =3D &vi->dev.parent; + VuVirtq *vq =3D vu_get_queue(dev, 0); + VuVirtqElement *elem; + int i, len; + + /* queue up events ... */ + if (vi->qindex =3D=3D vi->qsize) { + vi->qsize++; + vi->queue =3D g_realloc_n(vi->queue, vi->qsize, sizeof(vi->queue[0= ])); + } + vi->queue[vi->qindex++].event =3D *event; + + /* ... until we see a report sync ... */ + if (event->type !=3D htole16(EV_SYN) || + event->code !=3D htole16(SYN_REPORT)) { + return; + } + + /* ... then check available space ... */ + for (i =3D 0; i < vi->qindex; i++) { + elem =3D vu_queue_pop(dev, vq, sizeof(VuVirtqElement)); + if (!elem) { + while (--i >=3D 0) { + vu_queue_unpop(dev, vq, vi->queue[i].elem, 0); + } + vi->qindex =3D 0; + g_warning("virtio-input queue full"); + return; + } + vi->queue[i].elem =3D elem; + } + + /* ... and finally pass them to the guest */ + for (i =3D 0; i < vi->qindex; i++) { + elem =3D vi->queue[i].elem; + len =3D iov_from_buf(elem->in_sg, elem->in_num, + 0, &vi->queue[i].event, sizeof(virtio_input_eve= nt)); + vu_queue_push(dev, vq, elem, len); + g_free(elem); + } + + vu_queue_notify(&vi->dev.parent, vq); + vi->qindex =3D 0; +} + +static void +vi_evdev_watch(VuDev *dev, int condition, void *data) +{ + VuInput *vi =3D data; + int fd =3D vi->evdevfd; + + g_debug("Got evdev condition %x", condition); + + struct virtio_input_event virtio; + struct input_event evdev; + int rc; + + for (;;) { + rc =3D read(fd, &evdev, sizeof(evdev)); + if (rc !=3D sizeof(evdev)) { + break; + } + + g_debug("input %d %d %d", evdev.type, evdev.code, evdev.value); + + virtio.type =3D htole16(evdev.type); + virtio.code =3D htole16(evdev.code); + virtio.value =3D htole32(evdev.value); + vi_input_send(vi, &virtio); + } +} + + +static void vi_handle_status(VuInput *vi, virtio_input_event *event) +{ + struct input_event evdev; + int rc; + + if (gettimeofday(&evdev.time, NULL)) { + perror("vi_handle_status: gettimeofday"); + return; + } + + evdev.type =3D le16toh(event->type); + evdev.code =3D le16toh(event->code); + evdev.value =3D le32toh(event->value); + + rc =3D write(vi->evdevfd, &evdev, sizeof(evdev)); + if (rc =3D=3D -1) { + perror("vi_host_handle_status: write"); + } +} + +static void vi_handle_sts(VuDev *dev, int qidx) +{ + VuInput *vi =3D container_of(dev, VuInput, dev.parent); + VuVirtq *vq =3D vu_get_queue(dev, qidx); + virtio_input_event event; + VuVirtqElement *elem; + int len; + + g_debug("%s", G_STRFUNC); + + for (;;) { + elem =3D vu_queue_pop(dev, vq, sizeof(VuVirtqElement)); + if (!elem) { + break; + } + + memset(&event, 0, sizeof(event)); + len =3D iov_to_buf(elem->out_sg, elem->out_num, + 0, &event, sizeof(event)); + vi_handle_status(vi, &event); + vu_queue_push(dev, vq, elem, len); + g_free(elem); + } + + vu_queue_notify(&vi->dev.parent, vq); +} + +static void +vi_panic(VuDev *dev, const char *msg) +{ + g_critical("%s\n", msg); + exit(EXIT_FAILURE); +} + +static void +vi_queue_set_started(VuDev *dev, int qidx, bool started) +{ + VuInput *vi =3D container_of(dev, VuInput, dev.parent); + VuVirtq *vq =3D vu_get_queue(dev, qidx); + + g_debug("queue started %d:%d", qidx, started); + + if (qidx =3D=3D 1) { + vu_set_queue_handler(dev, vq, started ? vi_handle_sts : NULL); + } + + started =3D vu_queue_started(dev, vu_get_queue(dev, 0)) && + vu_queue_started(dev, vu_get_queue(dev, 1)); + + if (started && !vi->evsrc) { + vi->evsrc =3D vug_source_new(&vi->dev, vi->evdevfd, + G_IO_IN, vi_evdev_watch, vi); + } + + if (!started && vi->evsrc) { + g_source_destroy(vi->evsrc); + vi->evsrc =3D NULL; + } +} + +static virtio_input_config * +vi_find_config(VuInput *vi, uint8_t select, uint8_t subsel) +{ + virtio_input_config *cfg; + int i; + + for (i =3D 0; i < vi->config->len; i++) { + cfg =3D &g_array_index(vi->config, virtio_input_config, i); + if (select =3D=3D cfg->select && subsel =3D=3D cfg->subsel) { + return cfg; + } + } + + return NULL; +} + +static int vi_get_config(VuDev *dev, uint8_t *config, uint32_t len) +{ + VuInput *vi =3D container_of(dev, VuInput, dev.parent); + + g_return_val_if_fail(len <=3D sizeof(*vi->sel_config), -1); + + if (vi->sel_config) { + memcpy(config, vi->sel_config, len); + } else { + memset(config, 0, len); + } + + return 0; +} + +static int vi_set_config(VuDev *dev, const uint8_t *data, + uint32_t offset, uint32_t size, + uint32_t flags) +{ + VuInput *vi =3D container_of(dev, VuInput, dev.parent); + virtio_input_config *config =3D (virtio_input_config *)data; + + vi->sel_config =3D vi_find_config(vi, config->select, config->subsel); + + return 0; +} + +static const VuDevIface vuiface =3D { + .queue_set_started =3D vi_queue_set_started, + .get_config =3D vi_get_config, + .set_config =3D vi_set_config, +}; + +static void +vi_bits_config(VuInput *vi, int type, int count) +{ + virtio_input_config bits; + int rc, i, size =3D 0; + + memset(&bits, 0, sizeof(bits)); + rc =3D ioctl(vi->evdevfd, EVIOCGBIT(type, count / 8), bits.u.bitmap); + if (rc < 0) { + return; + } + + for (i =3D 0; i < count / 8; i++) { + if (bits.u.bitmap[i]) { + size =3D i + 1; + } + } + if (size =3D=3D 0) { + return; + } + + bits.select =3D VIRTIO_INPUT_CFG_EV_BITS; + bits.subsel =3D type; + bits.size =3D size; + g_array_append_val(vi->config, bits); +} + +static char *opt_evdev; +static int opt_fdnum =3D -1; +static char *opt_socket_path; +static gboolean opt_nograb; +static gboolean opt_print_caps; + +static GOptionEntry entries[] =3D { + { "print-capabilities", 'c', 0, G_OPTION_ARG_NONE, &opt_print_caps, + "Print capabilities", NULL }, + { "no-grab", 'n', 0, G_OPTION_ARG_NONE, &opt_nograb, + "Don't grab device", NULL }, + { "fd", 'f', 0, G_OPTION_ARG_INT, &opt_fdnum, + "Use inherited fd socket", "FDNUM" }, + { "socket-path", 's', 0, G_OPTION_ARG_FILENAME, &opt_socket_path, + "Use UNIX socket path", "PATH" }, + { "evdev-path", 'p', 0, G_OPTION_ARG_FILENAME, &opt_evdev, + "evdev input device path", "PATH" }, + { NULL, } +}; + +int +main(int argc, char *argv[]) +{ + GMainLoop *loop =3D NULL; + VuInput vi =3D { 0, }; + int rc, ver, fd; + virtio_input_config id; + struct input_id ids; + GError *error =3D NULL; + GOptionContext *context; + + context =3D g_option_context_new(NULL); + g_option_context_add_main_entries(context, entries, NULL); + if (!g_option_context_parse(context, &argc, &argv, &error)) { + g_printerr("Option parsing failed: %s\n", error->message); + exit(EXIT_FAILURE); + } + if (opt_print_caps) { + g_print("{\n"); + g_print(" \"type\": \"input\",\n"); + g_print(" \"features\": [\n"); + g_print(" \"evdev-path\",\n"); + g_print(" \"no-grab\"\n"); + g_print(" ]\n"); + g_print("}\n"); + exit(EXIT_SUCCESS); + } + if (!opt_evdev) { + g_printerr("Please specify an evdev path\n"); + exit(EXIT_FAILURE); + } + if ((!!opt_socket_path + (opt_fdnum !=3D -1)) !=3D 1) { + g_printerr("Please specify either --fd or --socket-path\n"); + exit(EXIT_FAILURE); + } + + vi.evdevfd =3D open(opt_evdev, O_RDWR); + if (vi.evdevfd < 0) { + g_printerr("Failed to open evdev: %s\n", g_strerror(errno)); + exit(EXIT_FAILURE); + } + + rc =3D ioctl(vi.evdevfd, EVIOCGVERSION, &ver); + if (rc < 0) { + g_printerr("%s: is not an evdev device\n", argv[1]); + exit(EXIT_FAILURE); + } + + if (!opt_nograb) { + rc =3D ioctl(vi.evdevfd, EVIOCGRAB, 1); + if (rc < 0) { + g_printerr("Failed to grab device\n"); + exit(EXIT_FAILURE); + } + } + + vi.config =3D g_array_new(false, false, sizeof(virtio_input_config)); + memset(&id, 0, sizeof(id)); + ioctl(vi.evdevfd, EVIOCGNAME(sizeof(id.u.string) - 1), id.u.string); + id.select =3D VIRTIO_INPUT_CFG_ID_NAME; + id.size =3D strlen(id.u.string); + g_array_append_val(vi.config, id); + + if (ioctl(vi.evdevfd, EVIOCGID, &ids) =3D=3D 0) { + memset(&id, 0, sizeof(id)); + id.select =3D VIRTIO_INPUT_CFG_ID_DEVIDS; + id.size =3D sizeof(struct virtio_input_devids); + id.u.ids.bustype =3D cpu_to_le16(ids.bustype); + id.u.ids.vendor =3D cpu_to_le16(ids.vendor); + id.u.ids.product =3D cpu_to_le16(ids.product); + id.u.ids.version =3D cpu_to_le16(ids.version); + g_array_append_val(vi.config, id); + } + + vi_bits_config(&vi, EV_KEY, KEY_CNT); + vi_bits_config(&vi, EV_REL, REL_CNT); + vi_bits_config(&vi, EV_ABS, ABS_CNT); + vi_bits_config(&vi, EV_MSC, MSC_CNT); + vi_bits_config(&vi, EV_SW, SW_CNT); + g_debug("config length: %u", vi.config->len); + + if (opt_socket_path) { + int lsock =3D unix_listen(opt_socket_path, &error_fatal); + fd =3D accept(lsock, NULL, NULL); + close(lsock); + } else { + fd =3D opt_fdnum; + } + if (fd =3D=3D -1) { + g_printerr("Invalid socket"); + exit(EXIT_FAILURE); + } + vug_init(&vi.dev, fd, vi_panic, &vuiface); + + loop =3D g_main_loop_new(NULL, FALSE); + g_main_loop_run(loop); + g_main_loop_unref(loop); + + vug_deinit(&vi.dev); + + if (vi.evsrc) { + g_source_unref(vi.evsrc); + } + g_array_free(vi.config, TRUE); + g_free(vi.queue); + return 0; +} diff --git a/MAINTAINERS b/MAINTAINERS index a73a61a546..8a87bc176d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1531,6 +1531,7 @@ S: Maintained F: hw/input/vhost-user-input.c F: hw/input/virtio-input*.c F: include/hw/virtio/virtio-input.h +F: contrib/vhost-user-input/* =20 virtio-serial M: Amit Shah diff --git a/Makefile b/Makefile index 66d5c65156..fe5c02f9a3 100644 --- a/Makefile +++ b/Makefile @@ -406,6 +406,7 @@ dummy :=3D $(call unnest-vars,, \ libvhost-user-obj-y \ vhost-user-scsi-obj-y \ vhost-user-blk-obj-y \ + vhost-user-input-obj-y \ qga-vss-dll-obj-y \ block-obj-y \ block-obj-m \ @@ -615,6 +616,16 @@ rdmacm-mux$(EXESUF): LIBS +=3D "-libumad" rdmacm-mux$(EXESUF): $(rdmacm-mux-obj-y) $(COMMON_LDADDS) $(call LINK, $^) =20 +ifdef CONFIG_VHOST_USER_INPUT +ifdef CONFIG_LINUX +vhost-user-input$(EXESUF): $(vhost-user-input-obj-y) libvhost-user.a libqe= muutil.a + $(call LINK, $^) + +# build by default, do not install +all: vhost-user-input$(EXESUF) +endif +endif + module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak $(call quiet-command,$(PYTHON) $< $@ \ $(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \ diff --git a/Makefile.objs b/Makefile.objs index cf065de5ed..27502b7df1 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -122,6 +122,7 @@ vhost-user-scsi.o-libs :=3D $(LIBISCSI_LIBS) vhost-user-scsi-obj-y =3D contrib/vhost-user-scsi/ vhost-user-blk-obj-y =3D contrib/vhost-user-blk/ rdmacm-mux-obj-y =3D contrib/rdmacm-mux/ +vhost-user-input-obj-y =3D contrib/vhost-user-input/ =20 ###################################################################### trace-events-subdirs =3D diff --git a/contrib/vhost-user-input/Makefile.objs b/contrib/vhost-user-in= put/Makefile.objs new file mode 100644 index 0000000000..b1fad90d51 --- /dev/null +++ b/contrib/vhost-user-input/Makefile.objs @@ -0,0 +1 @@ +vhost-user-input-obj-y =3D main.o --=20 2.21.0.777.g83232e3864