From patchwork Mon Oct 3 12:41:08 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 677724 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3snhw23Bsqz9s9N for ; Mon, 3 Oct 2016 23:59:46 +1100 (AEDT) Received: from localhost ([::1]:36978 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1br2qN-0004aL-6n for incoming@patchwork.ozlabs.org; Mon, 03 Oct 2016 08:59:43 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49035) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1br2Yr-00066C-BT for qemu-devel@nongnu.org; Mon, 03 Oct 2016 08:41:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1br2Yp-0006z3-L0 for qemu-devel@nongnu.org; Mon, 03 Oct 2016 08:41:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60268) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1br2Yp-0006yo-BT for qemu-devel@nongnu.org; Mon, 03 Oct 2016 08:41:35 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D407861986; Mon, 3 Oct 2016 12:41:34 +0000 (UTC) Received: from localhost.redhat.com (vpn1-5-72.ams2.redhat.com [10.36.5.72]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u93CfJGK008953; Mon, 3 Oct 2016 08:41:33 -0400 From: Eric Auger To: eric.auger@redhat.com, eric.auger.pro@gmail.com, qemu-devel@nongnu.org, alex.williamson@redhat.com, armbru@redhat.com Date: Mon, 3 Oct 2016 12:41:08 +0000 Message-Id: <1475498477-2695-9-git-send-email-eric.auger@redhat.com> In-Reply-To: <1475498477-2695-1-git-send-email-eric.auger@redhat.com> References: <1475498477-2695-1-git-send-email-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 03 Oct 2016 12:41:34 +0000 (UTC) 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 v4 08/17] vfio: Pass an Error object to vfio_connect_container 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The error is currently simply reported in vfio_get_group. Don't bother too much with the prefix which will be handled at upper level, later on. Signed-off-by: Eric Auger --- hw/vfio/common.c | 39 ++++++++++++++++++++++++--------------- 1 file changed, 24 insertions(+), 15 deletions(-) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 29188a1..3b18eb4 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -34,6 +34,7 @@ #include "qemu/range.h" #include "sysemu/kvm.h" #include "trace.h" +#include "qapi/error.h" struct vfio_group_head vfio_group_list = QLIST_HEAD_INITIALIZER(vfio_group_list); @@ -900,7 +901,8 @@ static void vfio_put_address_space(VFIOAddressSpace *space) } } -static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) +static int vfio_connect_container(VFIOGroup *group, AddressSpace *as, + Error **errp) { VFIOContainer *container; int ret, fd; @@ -918,15 +920,15 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) fd = qemu_open("/dev/vfio/vfio", O_RDWR); if (fd < 0) { - error_report("vfio: failed to open /dev/vfio/vfio: %m"); + error_setg_errno(errp, errno, "failed to open /dev/vfio/vfio"); ret = -errno; goto put_space_exit; } ret = ioctl(fd, VFIO_GET_API_VERSION); if (ret != VFIO_API_VERSION) { - error_report("vfio: supported vfio version: %d, " - "reported version: %d", VFIO_API_VERSION, ret); + error_setg(errp, "supported vfio version: %d, " + "reported version: %d", VFIO_API_VERSION, ret); ret = -EINVAL; goto close_fd_exit; } @@ -941,7 +943,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) ret = ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &fd); if (ret) { - error_report("vfio: failed to set group container: %m"); + error_setg_errno(errp, errno, "failed to set group container"); ret = -errno; goto free_container_exit; } @@ -949,7 +951,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) container->iommu_type = v2 ? VFIO_TYPE1v2_IOMMU : VFIO_TYPE1_IOMMU; ret = ioctl(fd, VFIO_SET_IOMMU, container->iommu_type); if (ret) { - error_report("vfio: failed to set iommu for container: %m"); + error_setg_errno(errp, errno, "failed to set iommu for container"); ret = -errno; goto free_container_exit; } @@ -976,7 +978,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) ret = ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &fd); if (ret) { - error_report("vfio: failed to set group container: %m"); + error_setg_errno(errp, errno, "failed to set group container"); ret = -errno; goto free_container_exit; } @@ -984,7 +986,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) v2 ? VFIO_SPAPR_TCE_v2_IOMMU : VFIO_SPAPR_TCE_IOMMU; ret = ioctl(fd, VFIO_SET_IOMMU, container->iommu_type); if (ret) { - error_report("vfio: failed to set iommu for container: %m"); + error_setg_errno(errp, errno, "failed to set iommu for container"); ret = -errno; goto free_container_exit; } @@ -997,7 +999,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) if (!v2) { ret = ioctl(fd, VFIO_IOMMU_ENABLE); if (ret) { - error_report("vfio: failed to enable container: %m"); + error_setg_errno(errp, errno, "failed to enable container"); ret = -errno; goto free_container_exit; } @@ -1008,7 +1010,8 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) &address_space_memory); if (container->error) { memory_listener_unregister(&container->prereg_listener); - error_report("vfio: RAM memory listener initialization failed for container"); + error_setg(errp, + "RAM memory listener initialization failed for container"); goto free_container_exit; } } @@ -1016,7 +1019,8 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) info.argsz = sizeof(info); ret = ioctl(fd, VFIO_IOMMU_SPAPR_TCE_GET_INFO, &info); if (ret) { - error_report("vfio: VFIO_IOMMU_SPAPR_TCE_GET_INFO failed: %m"); + error_setg_errno(errp, errno, + "VFIO_IOMMU_SPAPR_TCE_GET_INFO failed"); ret = -errno; if (v2) { memory_listener_unregister(&container->prereg_listener); @@ -1033,6 +1037,8 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) */ ret = vfio_spapr_remove_window(container, info.dma32_window_start); if (ret) { + error_setg_errno(errp, -ret, + "failed to remove existing window"); goto free_container_exit; } } else { @@ -1043,7 +1049,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) 0x1000); } } else { - error_report("vfio: No available IOMMU models"); + error_setg(errp, "No available IOMMU models"); ret = -EINVAL; goto free_container_exit; } @@ -1054,7 +1060,8 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) if (container->error) { ret = container->error; - error_report("vfio: memory listener initialization failed for container"); + error_setg_errno(errp, -ret, + "memory listener initialization failed for container"); goto listener_release_exit; } @@ -1120,6 +1127,7 @@ VFIOGroup *vfio_get_group(int groupid, AddressSpace *as) VFIOGroup *group; char path[32]; struct vfio_group_status status = { .argsz = sizeof(status) }; + Error *err = NULL; QLIST_FOREACH(group, &vfio_group_list, next) { if (group->groupid == groupid) { @@ -1158,8 +1166,9 @@ VFIOGroup *vfio_get_group(int groupid, AddressSpace *as) group->groupid = groupid; QLIST_INIT(&group->device_list); - if (vfio_connect_container(group, as)) { - error_report("vfio: failed to setup container for group %d", groupid); + if (vfio_connect_container(group, as, &err)) { + error_reportf_err(err, "vfio: failed to setup container for group %d", + groupid); goto close_fd_exit; }