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Re: [Qemu-devel] [PATCH] vhost: pass corrent log base to kernel
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH] vhost: pass corrent log base to kernel |
Date: |
Wed, 15 Apr 2015 11:36:38 +0200 |
On Wed, Apr 15, 2015 at 12:06:42PM +0800, Wen Congyang wrote:
> Signed-off-by: Wen Congyang <address@hidden>
> ---
> hw/virtio/vhost.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
> index 5a12861..4e334ca 100644
> --- a/hw/virtio/vhost.c
> +++ b/hw/virtio/vhost.c
> @@ -1060,7 +1060,7 @@ int vhost_dev_start(struct vhost_dev *hdev,
> VirtIODevice *vdev)
> hdev->log_size = vhost_get_log_size(hdev);
> hdev->log = hdev->log_size ?
> g_malloc0(hdev->log_size * sizeof *hdev->log) : NULL;
> - r = hdev->vhost_ops->vhost_call(hdev, VHOST_SET_LOG_BASE, hdev->log);
> + r = hdev->vhost_ops->vhost_call(hdev, VHOST_SET_LOG_BASE,
> &hdev->log);
> if (r < 0) {
> r = -errno;
> goto fail_log;
Wow that's a serious bug.
But your patch won't work correctly on 32 bit systems.
I'll send a fixed patch.
Thanks!
> --
> 2.1.0