39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
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From 0f515ff831f46ef34cd83aa145e547e48d8b3b56 Mon Sep 17 00:00:00 2001
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From: libai <libai12@huawei.com>
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Date: Thu, 14 Dec 2023 11:05:52 +0800
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Subject: [PATCH] vdpa: set vring enable only if the vring address has already
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been set
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Currently, vhost-vdpa does not determine the status of each vring when
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performing the enable operation on vring. When the vBIOS(EDK2) is running,
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the driver will not enable all vrings. In this case, setting all vrings
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to enable is isconsistent with the actual situation.
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Add logic when enabling vring, make a judement on the vring status. If the
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vring address is not set, the vring will not enabled.
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Signed-off-by: libai <libai12@huawei.com>
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---
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hw/virtio/vhost-vdpa.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
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index 30408f2069..d49826845f 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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@@ -890,6 +890,11 @@ int vhost_vdpa_set_vring_ready(struct vhost_vdpa *v, unsigned idx)
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.index = idx,
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.num = 1,
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};
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+ hwaddr addr = virtio_queue_get_desc_addr(dev->vdev, idx);
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+ if (addr == 0) {
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+ return 0;
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+ }
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+
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int r = vhost_vdpa_call(dev, VHOST_VDPA_SET_VRING_ENABLE, &state);
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trace_vhost_vdpa_set_vring_ready(dev, idx, r);
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--
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2.27.0
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