0552c42c39
- kvm-Introduce-event-loop-base-abstract-class.patch [bz#2031024] - kvm-util-main-loop-Introduce-the-main-loop-into-QOM.patch [bz#2031024] - kvm-util-event-loop-base-Introduce-options-to-set-the-th.patch [bz#2031024] - kvm-qcow2-Improve-refcount-structure-rebuilding.patch [bz#2072379] - kvm-iotests-108-Test-new-refcount-rebuild-algorithm.patch [bz#2072379] - kvm-qcow2-Add-errp-to-rebuild_refcount_structure.patch [bz#2072379] - kvm-iotests-108-Fix-when-missing-user_allow_other.patch [bz#2072379] - kvm-virtio-net-setup-vhost_dev-and-notifiers-for-cvq-onl.patch [bz#2070804] - kvm-virtio-net-align-ctrl_vq-index-for-non-mq-guest-for-.patch [bz#2070804] - kvm-vhost-vdpa-fix-improper-cleanup-in-net_init_vhost_vd.patch [bz#2070804] - kvm-vhost-net-fix-improper-cleanup-in-vhost_net_start.patch [bz#2070804] - kvm-vhost-vdpa-backend-feature-should-set-only-once.patch [bz#2070804] - kvm-vhost-vdpa-change-name-and-polarity-for-vhost_vdpa_o.patch [bz#2070804] - kvm-virtio-net-don-t-handle-mq-request-in-userspace-hand.patch [bz#2070804] - kvm-Revert-globally-limit-the-maximum-number-of-CPUs.patch [bz#2094270] - kvm-vfio-common-remove-spurious-warning-on-vfio_listener.patch [bz#2086262] - Resolves: bz#2031024 (Add support for fixing thread pool size [QEMU]) - Resolves: bz#2072379 (Fail to rebuild the reference count tables of qcow2 image on host block devices (e.g. LVs)) - Resolves: bz#2070804 (PXE boot crash qemu when using multiqueue vDPA) - Resolves: bz#2094270 (Do not set the hard vCPU limit to the soft vCPU limit in downstream qemu-kvm anymore) - Resolves: bz#2086262 ([Win11][tpm]vfio_listener_region_del received unaligned region)
59 lines
2.2 KiB
Diff
59 lines
2.2 KiB
Diff
From 46c5a35aa56cf0dd55376638dbf7d46e85f497e1 Mon Sep 17 00:00:00 2001
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From: Si-Wei Liu <si-wei.liu@oracle.com>
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Date: Fri, 6 May 2022 19:28:16 -0700
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Subject: [PATCH 12/16] vhost-vdpa: backend feature should set only once
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Jason Wang <jasowang@redhat.com>
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RH-MergeRequest: 98: Multiqueue fixes for vhost-vDPA
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RH-Commit: [5/7] 7531bb8da0c99b29997e8bfc6d1e811daf3cdd38 (jasowang/qemu-kvm-cs)
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RH-Bugzilla: 2070804
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RH-Acked-by: Eugenio Pérez <eperezma@redhat.com>
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RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
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RH-Acked-by: Cindy Lu <lulu@redhat.com>
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The vhost_vdpa_one_time_request() branch in
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vhost_vdpa_set_backend_cap() incorrectly sends down
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ioctls on vhost_dev with non-zero index. This may
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end up with multiple VHOST_SET_BACKEND_FEATURES
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ioctl calls sent down on the vhost-vdpa fd that is
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shared between all these vhost_dev's.
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To fix it, send down ioctl only once via the first
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vhost_dev with index 0. Toggle the polarity of the
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vhost_vdpa_one_time_request() test should do the
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trick.
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Fixes: 4d191cfdc7de ("vhost-vdpa: classify one time request")
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Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
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Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
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Acked-by: Jason Wang <jasowang@redhat.com>
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Acked-by: Eugenio Pérez <eperezma@redhat.com>
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Message-Id: <1651890498-24478-6-git-send-email-si-wei.liu@oracle.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit 6aee7e4233f6467f69531fcd352adff028f3f5ea)
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Signed-off-by: Jason Wang <jasowang@redhat.com>
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---
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hw/virtio/vhost-vdpa.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
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index 8adf7c0b92..6e3dbd9e89 100644
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--- a/hw/virtio/vhost-vdpa.c
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+++ b/hw/virtio/vhost-vdpa.c
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@@ -665,7 +665,7 @@ static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
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features &= f;
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- if (vhost_vdpa_one_time_request(dev)) {
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+ if (!vhost_vdpa_one_time_request(dev)) {
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r = vhost_vdpa_call(dev, VHOST_SET_BACKEND_FEATURES, &features);
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if (r) {
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return -EFAULT;
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--
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2.31.1
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