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From 89a67e0ce3e4c7b9f9b2d4cfb9fc5eeebc5643ac Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
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Date: Tue, 23 Aug 2022 20:20:08 +0200
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Subject: [PATCH 10/23] vdpa: Use ring hwaddr at vhost_vdpa_svq_unmap_ring
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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: Eugenio Pérez <eperezma@redhat.com>
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RH-MergeRequest: 116: vdpa: Restore device state on destination
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RH-Bugzilla: 2114060
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RH-Acked-by: Cindy Lu <lulu@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [9/21] 4420134d7be60fa8b04dc9a56566524bf8daddd4 (eperezmartin/qemu-kvm)
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2114060
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Upstream status: git@github.com:jasowang/qemu.git net-next
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Reduce code duplication.
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Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
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Acked-by: Jason Wang <jasowang@redhat.com>
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Signed-off-by: Jason Wang <jasowang@redhat.com>
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(cherry picked from commit 5a92452da95b2edfbffdd42ddc2612a7d09a5db0)
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---
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hw/virtio/vhost-vdpa.c | 17 ++++++++---------
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1 file changed, 8 insertions(+), 9 deletions(-)
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diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
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index 8eddf39f2a..0bea1e1eb9 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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@@ -882,10 +882,12 @@ static int vhost_vdpa_svq_set_fds(struct vhost_dev *dev,
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/**
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* Unmap a SVQ area in the device
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*/
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-static void vhost_vdpa_svq_unmap_ring(struct vhost_vdpa *v,
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- const DMAMap *needle)
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+static void vhost_vdpa_svq_unmap_ring(struct vhost_vdpa *v, hwaddr addr)
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{
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- const DMAMap *result = vhost_iova_tree_find_iova(v->iova_tree, needle);
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+ const DMAMap needle = {
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+ .translated_addr = addr,
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+ };
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+ const DMAMap *result = vhost_iova_tree_find_iova(v->iova_tree, &needle);
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hwaddr size;
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int r;
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@@ -907,17 +909,14 @@ static void vhost_vdpa_svq_unmap_ring(struct vhost_vdpa *v,
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static void vhost_vdpa_svq_unmap_rings(struct vhost_dev *dev,
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const VhostShadowVirtqueue *svq)
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{
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- DMAMap needle = {};
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struct vhost_vdpa *v = dev->opaque;
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struct vhost_vring_addr svq_addr;
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vhost_svq_get_vring_addr(svq, &svq_addr);
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- needle.translated_addr = svq_addr.desc_user_addr;
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- vhost_vdpa_svq_unmap_ring(v, &needle);
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+ vhost_vdpa_svq_unmap_ring(v, svq_addr.desc_user_addr);
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- needle.translated_addr = svq_addr.used_user_addr;
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- vhost_vdpa_svq_unmap_ring(v, &needle);
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+ vhost_vdpa_svq_unmap_ring(v, svq_addr.used_user_addr);
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}
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/**
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@@ -995,7 +994,7 @@ static bool vhost_vdpa_svq_map_rings(struct vhost_dev *dev,
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ok = vhost_vdpa_svq_map_ring(v, &device_region, errp);
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if (unlikely(!ok)) {
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error_prepend(errp, "Cannot create vq device region: ");
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- vhost_vdpa_svq_unmap_ring(v, &driver_region);
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+ vhost_vdpa_svq_unmap_ring(v, driver_region.translated_addr);
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}
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addr->used_user_addr = device_region.iova;
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--
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2.31.1
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