From nobody Sun Feb 8 23:05:04 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.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 164986887083586.16643005272158; Wed, 13 Apr 2022 09:54:30 -0700 (PDT) Received: from localhost ([::1]:38352 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1negGD-0003oK-N0 for importer@patchew.org; Wed, 13 Apr 2022 12:54:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33788) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nefve-00027A-Co for qemu-devel@nongnu.org; Wed, 13 Apr 2022 12:33:14 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:48317) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nefvc-0003Gd-6C for qemu-devel@nongnu.org; Wed, 13 Apr 2022 12:33:14 -0400 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-460-wjhpLlW4Px-NehU5S_aG0w-1; Wed, 13 Apr 2022 12:33:08 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1A2B33841D24; Wed, 13 Apr 2022 16:33:08 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.167]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0927B1415105; Wed, 13 Apr 2022 16:33:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1649867591; 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=LTpy20R1UK/f6DRaZkxOpfl1MvfeC1qnyvbkSEpmd7o=; b=aCE0Mv2mXsDdyygO6FvLuk9E3qnCEhVHnMYdEStFKj6M18RUYuOYMpEHiurGBHFOUOLLT5 aY6aar+ViyaMf+PBpP9M5QoLkXXM9Zw4z1PtASHSYfVmI4lqjR6UxdLWv/7PFQKGQWeGE0 foHSm4cx9UB2WIS16/lJWRznTaXSLpg= X-MC-Unique: wjhpLlW4Px-NehU5S_aG0w-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC PATCH v7 24/25] vdpa: Add asid attribute to vdpa device Date: Wed, 13 Apr 2022 18:32:05 +0200 Message-Id: <20220413163206.1958254-25-eperezma@redhat.com> In-Reply-To: <20220413163206.1958254-1-eperezma@redhat.com> References: <20220413163206.1958254-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.7 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eperezma@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.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; Received-SPF: pass client-ip=170.10.133.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: Laurent Vivier , Parav Pandit , Cindy Lu , "Michael S. Tsirkin" , Jason Wang , Gautam Dawar , Harpreet Singh Anand , "Gonglei \(Arei\)" , Eli Cohen , Liuxiangdong , Zhu Lingshan Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1649868871535100001 We can configure ASID per group, but we still use asid 0 for every vdpa device. Multiple asid support for cvq will be introduced in next patches Signed-off-by: Eugenio P=C3=A9rez --- include/hw/virtio/vhost.h | 4 ++ hw/net/vhost_net.c | 5 +++ hw/virtio/vhost-vdpa.c | 95 ++++++++++++++++++++++++++++++++------- net/vhost-vdpa.c | 4 +- hw/virtio/trace-events | 9 ++-- 5 files changed, 94 insertions(+), 23 deletions(-) diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h index 034868fa9e..640cf82168 100644 --- a/include/hw/virtio/vhost.h +++ b/include/hw/virtio/vhost.h @@ -76,8 +76,12 @@ struct vhost_dev { int vq_index; /* one past the last vq index for the virtio device (not vhost) */ int vq_index_end; + /* one past the last vq index of this virtqueue group */ + int vq_group_index_end; /* if non-zero, minimum required value for max_queues */ int num_queues; + /* address space id */ + uint32_t address_space_id; /* Must be a vq group different than any other vhost dev */ bool independent_vq_group; uint64_t features; diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c index 10480e19e5..a34df739a7 100644 --- a/hw/net/vhost_net.c +++ b/hw/net/vhost_net.c @@ -344,15 +344,20 @@ int vhost_net_start(VirtIODevice *dev, NetClientState= *ncs, =20 for (i =3D 0; i < nvhosts; i++) { bool cvq_idx =3D i >=3D data_queue_pairs; + uint32_t vq_group_end; =20 if (!cvq_idx) { peer =3D qemu_get_peer(ncs, i); + vq_group_end =3D 2 * data_queue_pairs; } else { /* Control Virtqueue */ peer =3D qemu_get_peer(ncs, n->max_queue_pairs); + vq_group_end =3D 2 * data_queue_pairs + 1; } =20 net =3D get_vhost_net(peer); + net->dev.address_space_id =3D !!cvq_idx; net->dev.independent_vq_group =3D !!cvq_idx; + net->dev.vq_group_index_end =3D vq_group_end; vhost_net_set_vq_index(net, i * 2, index_end); =20 /* Suppress the masking guest notifiers on vhost user diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 4096555242..5ed211287c 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -79,6 +79,9 @@ static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwadd= r iova, hwaddr size, int ret =3D 0; =20 msg.type =3D v->msg_type; + if (v->dev->backend_cap & BIT_ULL(VHOST_BACKEND_F_IOTLB_ASID)) { + msg.asid =3D v->dev->address_space_id; + } msg.iotlb.iova =3D iova; msg.iotlb.size =3D size; msg.iotlb.uaddr =3D (uint64_t)(uintptr_t)vaddr; @@ -90,8 +93,9 @@ static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwadd= r iova, hwaddr size, return 0; } =20 - trace_vhost_vdpa_dma_map(v, fd, msg.type, msg.iotlb.iova, msg.iotlb.siz= e, - msg.iotlb.uaddr, msg.iotlb.perm, msg.iotlb.typ= e); + trace_vhost_vdpa_dma_map(v, fd, msg.type, msg.asid, msg.iotlb.iova, + msg.iotlb.size, msg.iotlb.uaddr, msg.iotlb.pe= rm, + msg.iotlb.type); =20 if (write(fd, &msg, sizeof(msg)) !=3D sizeof(msg)) { error_report("failed to write, fd=3D%d, errno=3D%d (%s)", @@ -109,6 +113,9 @@ static int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, h= waddr iova, int fd =3D v->device_fd; int ret =3D 0; =20 + if (v->dev->backend_cap & BIT_ULL(VHOST_BACKEND_F_IOTLB_ASID)) { + msg.asid =3D v->dev->address_space_id; + } msg.type =3D v->msg_type; msg.iotlb.iova =3D iova; msg.iotlb.size =3D size; @@ -119,7 +126,7 @@ static int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, h= waddr iova, return 0; } =20 - trace_vhost_vdpa_dma_unmap(v, fd, msg.type, msg.iotlb.iova, + trace_vhost_vdpa_dma_unmap(v, fd, msg.type, msg.asid, msg.iotlb.iova, msg.iotlb.size, msg.iotlb.type); =20 if (write(fd, &msg, sizeof(msg)) !=3D sizeof(msg)) { @@ -134,6 +141,7 @@ static int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, h= waddr iova, static void vhost_vdpa_listener_commit(MemoryListener *listener) { struct vhost_vdpa *v =3D container_of(listener, struct vhost_vdpa, lis= tener); + struct vhost_dev *dev =3D v->dev; struct vhost_msg_v2 msg =3D {}; int fd =3D v->device_fd; size_t num =3D v->iotlb_updates->len; @@ -142,9 +150,14 @@ static void vhost_vdpa_listener_commit(MemoryListener = *listener) return; } =20 + if (dev->backend_cap & (0x1ULL << VHOST_BACKEND_F_IOTLB_ASID)) { + msg.asid =3D v->dev->address_space_id; + } + msg.type =3D v->msg_type; msg.iotlb.type =3D VHOST_IOTLB_BATCH_BEGIN; - trace_vhost_vdpa_listener_begin_batch(v, fd, msg.type, msg.iotlb.type); + trace_vhost_vdpa_listener_begin_batch(v, fd, msg.type, msg.asid, + msg.iotlb.type); if (write(fd, &msg, sizeof(msg)) !=3D sizeof(msg)) { error_report("failed to write BEGIN_BATCH, fd=3D%d, errno=3D%d (%s= )", fd, errno, strerror(errno)); @@ -162,7 +175,8 @@ static void vhost_vdpa_listener_commit(MemoryListener *= listener) } =20 msg.iotlb.type =3D VHOST_IOTLB_BATCH_END; - trace_vhost_vdpa_listener_commit(v, fd, msg.type, msg.iotlb.type); + trace_vhost_vdpa_listener_commit(v, fd, msg.type, msg.asid, + msg.iotlb.type); if (write(fd, &msg, sizeof(msg)) !=3D sizeof(msg)) { error_report("failed to write, fd=3D%d, errno=3D%d (%s)", fd, errno, strerror(errno)); @@ -1171,10 +1185,48 @@ call_err: return false; } =20 +static int vhost_vdpa_set_vq_group_address_space_id(struct vhost_dev *dev, + struct vhost_vring_state *= asid) +{ + trace_vhost_vdpa_set_vq_group_address_space_id(dev, asid->index, asid-= >num); + return vhost_vdpa_call(dev, VHOST_VDPA_SET_GROUP_ASID, asid); +} + +static int vhost_vdpa_set_address_space_id(struct vhost_dev *dev) +{ + struct vhost_vring_state vq_group =3D { + .index =3D dev->vq_index, + }; + struct vhost_vring_state asid; + int ret; + + if (!dev->address_space_id) { + return 0; + } + + ret =3D vhost_vdpa_get_vring_group(dev, &vq_group); + if (unlikely(ret)) { + error_report("Can't read vq group, errno=3D%d (%s)", ret, + g_strerror(-ret)); + return ret; + } + + asid.index =3D vq_group.num; + asid.num =3D dev->address_space_id; + ret =3D vhost_vdpa_set_vq_group_address_space_id(dev, &asid); + if (unlikely(ret)) { + error_report("Can't set vq group %u asid %u, errno=3D%d (%s)", + asid.index, asid.num, ret, g_strerror(-ret)); + } + return ret; +} + static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started) { struct vhost_vdpa *v =3D dev->opaque; - bool ok; + bool vq_group_end, ok; + int r =3D 0; + trace_vhost_vdpa_dev_start(dev, started); =20 if (started) { @@ -1183,6 +1235,10 @@ static int vhost_vdpa_dev_start(struct vhost_dev *de= v, bool started) !vhost_dev_is_independent_group(dev)) { return -1; } + r =3D vhost_vdpa_set_address_space_id(dev); + if (unlikely(r)) { + return r; + } ok =3D vhost_vdpa_svqs_start(dev); if (unlikely(!ok)) { return -1; @@ -1196,21 +1252,26 @@ static int vhost_vdpa_dev_start(struct vhost_dev *d= ev, bool started) vhost_vdpa_host_notifiers_uninit(dev, dev->nvqs); } =20 - if (dev->vq_index + dev->nvqs !=3D dev->vq_index_end) { - return 0; + vq_group_end =3D dev->vq_index + dev->nvqs =3D=3D dev->vq_group_index_= end; + if (vq_group_end && started) { + memory_listener_register(&v->listener, &address_space_memory); } =20 - if (started) { - memory_listener_register(&v->listener, &address_space_memory); - return vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK); - } else { - vhost_vdpa_reset_device(dev); - vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE | - VIRTIO_CONFIG_S_DRIVER); - memory_listener_unregister(&v->listener); + if (dev->vq_index + dev->nvqs =3D=3D dev->vq_index_end) { + if (started) { + r =3D vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK); + } else { + vhost_vdpa_reset_device(dev); + vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE | + VIRTIO_CONFIG_S_DRIVER); + } + } =20 - return 0; + if (vq_group_end && !started) { + memory_listener_unregister(&v->listener); } + + return r; } =20 static int vhost_vdpa_set_log_base(struct vhost_dev *dev, uint64_t base, diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 15c3e4f703..a6f803ea4e 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -473,8 +473,8 @@ int net_init_vhost_vdpa(const Netdev *netdev, const cha= r *name, =20 if (has_cvq) { nc =3D net_vhost_vdpa_init(peer, TYPE_VHOST_VDPA, name, - vdpa_device_fd, i, 1, false, opts->x_svq, - iova_tree); + vdpa_device_fd, i, 1, + false, opts->x_svq, iova_tree); if (!nc) goto err; } diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index e6fdc03514..2858deac60 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -23,10 +23,10 @@ vhost_user_postcopy_waker_found(uint64_t client_addr) "= 0x%"PRIx64 vhost_user_postcopy_waker_nomatch(const char *rb, uint64_t rb_offset) "%s = + 0x%"PRIx64 =20 # vhost-vdpa.c -vhost_vdpa_dma_map(void *vdpa, int fd, uint32_t msg_type, uint64_t iova, u= int64_t size, uint64_t uaddr, uint8_t perm, uint8_t type) "vdpa:%p fd: %d m= sg_type: %"PRIu32" iova: 0x%"PRIx64" size: 0x%"PRIx64" uaddr: 0x%"PRIx64" p= erm: 0x%"PRIx8" type: %"PRIu8 -vhost_vdpa_dma_unmap(void *vdpa, int fd, uint32_t msg_type, uint64_t iova,= uint64_t size, uint8_t type) "vdpa:%p fd: %d msg_type: %"PRIu32" iova: 0x%= "PRIx64" size: 0x%"PRIx64" type: %"PRIu8 -vhost_vdpa_listener_begin_batch(void *v, int fd, uint32_t msg_type, uint8_= t type) "vdpa:%p fd: %d msg_type: %"PRIu32" type: %"PRIu8 -vhost_vdpa_listener_commit(void *v, int fd, uint32_t msg_type, uint8_t typ= e) "vdpa:%p fd: %d msg_type: %"PRIu32" type: %"PRIu8 +vhost_vdpa_dma_map(void *vdpa, int fd, uint32_t msg_type, uint32_t asid, u= int64_t iova, uint64_t size, uint64_t uaddr, uint8_t perm, uint8_t type) "v= dpa:%p fd: %d msg_type: %"PRIu32" asid: %"PRIu32" iova: 0x%"PRIx64" size: 0= x%"PRIx64" uaddr: 0x%"PRIx64" perm: 0x%"PRIx8" type: %"PRIu8 +vhost_vdpa_dma_unmap(void *vdpa, int fd, uint32_t msg_type, uint32_t asid,= uint64_t iova, uint64_t size, uint8_t type) "vdpa:%p fd: %d msg_type: %"PR= Iu32" asid: %"PRIu32" iova: 0x%"PRIx64" size: 0x%"PRIx64" type: %"PRIu8 +vhost_vdpa_listener_begin_batch(void *v, int fd, uint32_t msg_type, uint32= _t asid, uint8_t type) "vdpa:%p fd: %d msg_type: %"PRIu32" asid: %"PRIu32"= type: %"PRIu8 +vhost_vdpa_listener_commit(void *v, int fd, uint32_t msg_type, uint32_t as= id, uint8_t type) "vdpa:%p fd: %d msg_type: %"PRIu32" asid: %"PRIu32" type= : %"PRIu8 vhost_vdpa_listener_region_add(void *vdpa, uint64_t iova, uint64_t llend, = void *vaddr, bool readonly) "vdpa: %p iova 0x%"PRIx64" llend 0x%"PRIx64" va= ddr: %p read-only: %d" vhost_vdpa_listener_region_del(void *vdpa, uint64_t iova, uint64_t llend) = "vdpa: %p iova 0x%"PRIx64" llend 0x%"PRIx64 vhost_vdpa_add_status(void *dev, uint8_t status) "dev: %p status: 0x%"PRIx8 @@ -44,6 +44,7 @@ vhost_vdpa_dump_config(void *dev, const char *line) "dev:= %p %s" vhost_vdpa_set_config(void *dev, uint32_t offset, uint32_t size, uint32_t = flags) "dev: %p offset: %"PRIu32" size: %"PRIu32" flags: 0x%"PRIx32 vhost_vdpa_get_config(void *dev, void *config, uint32_t config_len) "dev: = %p config: %p config_len: %"PRIu32 vhost_vdpa_get_vring_group(void *dev, unsigned int index, unsigned int num= ) "dev: %p index: %u num: %u" +vhost_vdpa_set_vq_group_address_space_id(void *dev, unsigned int index, un= signed int num) "dev: %p index: %u num: %u" vhost_vdpa_dev_start(void *dev, bool started) "dev: %p started: %d" vhost_vdpa_set_log_base(void *dev, uint64_t base, unsigned long long size,= int refcnt, int fd, void *log) "dev: %p base: 0x%"PRIx64" size: %llu refcn= t: %d fd: %d log: %p" vhost_vdpa_set_vring_addr(void *dev, unsigned int index, unsigned int flag= s, uint64_t desc_user_addr, uint64_t used_user_addr, uint64_t avail_user_ad= dr, uint64_t log_guest_addr) "dev: %p index: %u flags: 0x%x desc_user_addr:= 0x%"PRIx64" used_user_addr: 0x%"PRIx64" avail_user_addr: 0x%"PRIx64" log_g= uest_addr: 0x%"PRIx64 --=20 2.27.0