This is a note to let you know that I've just added the patch titled
virtio_pci: fix the common cfg map size
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
virtio_pci-fix-the-common-cfg-map-size.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 061b39fdfe7fd98946e67637213bcbb10a318cca Mon Sep 17 00:00:00 2001
From: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>
Date: Tue, 10 Oct 2023 11:11:18 +0800
Subject: virtio_pci: fix the common cfg map size
From: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>
commit 061b39fdfe7fd98946e67637213bcbb10a318cca upstream.
The function vp_modern_map_capability() takes the size parameter,
which corresponds to the size of virtio_pci_common_cfg. As a result,
this indicates the size of memory area to map.
Now the size is the size of virtio_pci_common_cfg, but some feature(such
as the _F_RING_RESET) needs the virtio_pci_modern_common_cfg, so this
commit changes the size to the size of virtio_pci_modern_common_cfg.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 0b50cece0b78 ("virtio_pci: introduce helper to get/set queue reset")
Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>
Message-Id: <20231010031120.81272-3-xuanzhuo@xxxxxxxxxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/virtio/virtio_pci_modern_dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/virtio/virtio_pci_modern_dev.c
+++ b/drivers/virtio/virtio_pci_modern_dev.c
@@ -291,7 +291,7 @@ int vp_modern_probe(struct virtio_pci_mo
err = -EINVAL;
mdev->common = vp_modern_map_capability(mdev, common,
sizeof(struct virtio_pci_common_cfg), 4,
- 0, sizeof(struct virtio_pci_common_cfg),
+ 0, sizeof(struct virtio_pci_modern_common_cfg),
NULL, NULL);
if (!mdev->common)
goto err_map_common;
Patches currently in stable-queue which might be from xuanzhuo@xxxxxxxxxxxxxxxxx are
queue-6.5/virtio_pci-fix-the-common-cfg-map-size.patch
queue-6.5/virtio-mmio-fix-memory-leak-of-vm_dev.patch
