From nobody Wed Nov 27 19:43:10 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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 1697622429246583.694139351537; Wed, 18 Oct 2023 02:47:09 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qt38K-0001Ca-WD; Wed, 18 Oct 2023 05:46:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qt385-0000dU-Gt for qemu-devel@nongnu.org; Wed, 18 Oct 2023 05:46:19 -0400 Received: from mail.ozlabs.org ([2404:9400:2221:ea00::3] helo=gandalf.ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qt382-0003Uq-PM for qemu-devel@nongnu.org; Wed, 18 Oct 2023 05:46:17 -0400 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4S9Qw26vKCz4xbr; Wed, 18 Oct 2023 20:46:10 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4S9Qw10xkpz4xbC; Wed, 18 Oct 2023 20:46:08 +1100 (AEDT) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Zhenzhong Duan , Eric Auger , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 12/22] vfio/common: Introduce a per container device list Date: Wed, 18 Oct 2023 11:45:21 +0200 Message-ID: <20231018094531.733211-13-clg@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231018094531.733211-1-clg@redhat.com> References: <20231018094531.733211-1-clg@redhat.com> MIME-Version: 1.0 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=2404:9400:2221:ea00::3; envelope-from=SRS0=VFJy=GA=redhat.com=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1697622430243100001 From: Zhenzhong Duan Several functions need to iterate over the VFIO devices attached to a given container. This is currently achieved by iterating over the groups attached to the container and then over the devices in the group. Let's introduce a per container device list that simplifies this search. Per container list is used in below functions: vfio_devices_all_dirty_tracking vfio_devices_all_device_dirty_tracking vfio_devices_all_running_and_mig_active vfio_devices_dma_logging_stop vfio_devices_dma_logging_start vfio_devices_query_dirty_bitmap This will also ease the migration of IOMMUFD by hiding the group specificity. Suggested-by: Alex Williamson Signed-off-by: Zhenzhong Duan Signed-off-by: Eric Auger Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: C=C3=A9dric Le Goater --- include/hw/vfio/vfio-common.h | 2 + hw/vfio/common.c | 141 +++++++++++++++------------------- 2 files changed, 65 insertions(+), 78 deletions(-) diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index c486bdef2adfe77e02f80559005d09426a7634bd..8ca70dd82156e25610fe9691784= 3f334549818fe 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -98,6 +98,7 @@ typedef struct VFIOContainer { QLIST_HEAD(, VFIOGroup) group_list; QLIST_HEAD(, VFIORamDiscardListener) vrdl_list; QLIST_ENTRY(VFIOContainer) next; + QLIST_HEAD(, VFIODevice) device_list; } VFIOContainer; =20 typedef struct VFIOGuestIOMMU { @@ -129,6 +130,7 @@ typedef struct VFIODeviceOps VFIODeviceOps; =20 typedef struct VFIODevice { QLIST_ENTRY(VFIODevice) next; + QLIST_ENTRY(VFIODevice) container_next; struct VFIOGroup *group; char *sysfsdev; char *name; diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 019da387d239cd005ab38577a68f35a013c98587..ef9dc7c74713f113a459db61aad= 7a017e21cf99a 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -218,7 +218,6 @@ bool vfio_device_state_is_precopy(VFIODevice *vbasedev) =20 static bool vfio_devices_all_dirty_tracking(VFIOContainer *container) { - VFIOGroup *group; VFIODevice *vbasedev; MigrationState *ms =3D migrate_get_current(); =20 @@ -227,19 +226,17 @@ static bool vfio_devices_all_dirty_tracking(VFIOConta= iner *container) return false; } =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - VFIOMigration *migration =3D vbasedev->migration; + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + VFIOMigration *migration =3D vbasedev->migration; =20 - if (!migration) { - return false; - } + if (!migration) { + return false; + } =20 - if (vbasedev->pre_copy_dirty_page_tracking =3D=3D ON_OFF_AUTO_= OFF && - (vfio_device_state_is_running(vbasedev) || - vfio_device_state_is_precopy(vbasedev))) { - return false; - } + if (vbasedev->pre_copy_dirty_page_tracking =3D=3D ON_OFF_AUTO_OFF = && + (vfio_device_state_is_running(vbasedev) || + vfio_device_state_is_precopy(vbasedev))) { + return false; } } return true; @@ -247,14 +244,11 @@ static bool vfio_devices_all_dirty_tracking(VFIOConta= iner *container) =20 static bool vfio_devices_all_device_dirty_tracking(VFIOContainer *containe= r) { - VFIOGroup *group; VFIODevice *vbasedev; =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (!vbasedev->dirty_pages_supported) { - return false; - } + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (!vbasedev->dirty_pages_supported) { + return false; } } =20 @@ -267,27 +261,24 @@ static bool vfio_devices_all_device_dirty_tracking(VF= IOContainer *container) */ static bool vfio_devices_all_running_and_mig_active(VFIOContainer *contain= er) { - VFIOGroup *group; VFIODevice *vbasedev; =20 if (!migration_is_active(migrate_get_current())) { return false; } =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - VFIOMigration *migration =3D vbasedev->migration; + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + VFIOMigration *migration =3D vbasedev->migration; =20 - if (!migration) { - return false; - } + if (!migration) { + return false; + } =20 - if (vfio_device_state_is_running(vbasedev) || - vfio_device_state_is_precopy(vbasedev)) { - continue; - } else { - return false; - } + if (vfio_device_state_is_running(vbasedev) || + vfio_device_state_is_precopy(vbasedev)) { + continue; + } else { + return false; } } return true; @@ -1187,20 +1178,17 @@ static bool vfio_section_is_vfio_pci(MemoryRegionSe= ction *section, { VFIOPCIDevice *pcidev; VFIODevice *vbasedev; - VFIOGroup *group; Object *owner; =20 owner =3D memory_region_owner(section->mr); =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (vbasedev->type !=3D VFIO_DEVICE_TYPE_PCI) { - continue; - } - pcidev =3D container_of(vbasedev, VFIOPCIDevice, vbasedev); - if (OBJECT(pcidev) =3D=3D owner) { - return true; - } + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (vbasedev->type !=3D VFIO_DEVICE_TYPE_PCI) { + continue; + } + pcidev =3D container_of(vbasedev, VFIOPCIDevice, vbasedev); + if (OBJECT(pcidev) =3D=3D owner) { + return true; } } =20 @@ -1296,24 +1284,21 @@ static void vfio_devices_dma_logging_stop(VFIOConta= iner *container) sizeof(uint64_t))] =3D {}; struct vfio_device_feature *feature =3D (struct vfio_device_feature *)= buf; VFIODevice *vbasedev; - VFIOGroup *group; =20 feature->argsz =3D sizeof(buf); feature->flags =3D VFIO_DEVICE_FEATURE_SET | VFIO_DEVICE_FEATURE_DMA_LOGGING_STOP; =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (!vbasedev->dirty_tracking) { - continue; - } + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (!vbasedev->dirty_tracking) { + continue; + } =20 - if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { - warn_report("%s: Failed to stop DMA logging, err %d (%s)", - vbasedev->name, -errno, strerror(errno)); - } - vbasedev->dirty_tracking =3D false; + if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { + warn_report("%s: Failed to stop DMA logging, err %d (%s)", + vbasedev->name, -errno, strerror(errno)); } + vbasedev->dirty_tracking =3D false; } } =20 @@ -1396,7 +1381,6 @@ static int vfio_devices_dma_logging_start(VFIOContain= er *container) struct vfio_device_feature *feature; VFIODirtyRanges ranges; VFIODevice *vbasedev; - VFIOGroup *group; int ret =3D 0; =20 vfio_dirty_tracking_init(container, &ranges); @@ -1406,21 +1390,19 @@ static int vfio_devices_dma_logging_start(VFIOConta= iner *container) return -errno; } =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - if (vbasedev->dirty_tracking) { - continue; - } + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + if (vbasedev->dirty_tracking) { + continue; + } =20 - ret =3D ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature); - if (ret) { - ret =3D -errno; - error_report("%s: Failed to start DMA logging, err %d (%s)= ", - vbasedev->name, ret, strerror(errno)); - goto out; - } - vbasedev->dirty_tracking =3D true; + ret =3D ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature); + if (ret) { + ret =3D -errno; + error_report("%s: Failed to start DMA logging, err %d (%s)", + vbasedev->name, ret, strerror(errno)); + goto out; } + vbasedev->dirty_tracking =3D true; } =20 out: @@ -1500,21 +1482,18 @@ static int vfio_devices_query_dirty_bitmap(VFIOCont= ainer *container, hwaddr size) { VFIODevice *vbasedev; - VFIOGroup *group; int ret; =20 - QLIST_FOREACH(group, &container->group_list, container_next) { - QLIST_FOREACH(vbasedev, &group->device_list, next) { - ret =3D vfio_device_dma_logging_report(vbasedev, iova, size, - vbmap->bitmap); - if (ret) { - error_report("%s: Failed to get DMA logging report, iova: " - "0x%" HWADDR_PRIx ", size: 0x%" HWADDR_PRIx - ", err: %d (%s)", - vbasedev->name, iova, size, ret, strerror(-re= t)); + QLIST_FOREACH(vbasedev, &container->device_list, container_next) { + ret =3D vfio_device_dma_logging_report(vbasedev, iova, size, + vbmap->bitmap); + if (ret) { + error_report("%s: Failed to get DMA logging report, iova: " + "0x%" HWADDR_PRIx ", size: 0x%" HWADDR_PRIx + ", err: %d (%s)", + vbasedev->name, iova, size, ret, strerror(-ret)); =20 - return ret; - } + return ret; } } =20 @@ -2648,6 +2627,7 @@ int vfio_attach_device(char *name, VFIODevice *vbased= ev, int groupid =3D vfio_device_groupid(vbasedev, errp); VFIODevice *vbasedev_iter; VFIOGroup *group; + VFIOContainer *container; int ret; =20 if (groupid < 0) { @@ -2671,8 +2651,12 @@ int vfio_attach_device(char *name, VFIODevice *vbase= dev, ret =3D vfio_get_device(group, name, vbasedev, errp); if (ret) { vfio_put_group(group); + return ret; } =20 + container =3D group->container; + QLIST_INSERT_HEAD(&container->device_list, vbasedev, container_next); + return ret; } =20 @@ -2680,6 +2664,7 @@ void vfio_detach_device(VFIODevice *vbasedev) { VFIOGroup *group =3D vbasedev->group; =20 + QLIST_REMOVE(vbasedev, container_next); trace_vfio_detach_device(vbasedev->name, group->groupid); vfio_put_base_device(vbasedev); vfio_put_group(group); --=20 2.41.0