Re: [virtio-dev] [PATCH v8 2/2] virtio-fs: add DAX window

From
Cornelia Huck <>
Date
2019-08-29T14:00:09+00:00
ID
Thread
Re: [virtio-dev] [PATCH v8 2/2] virtio-fs: add DAX window
On Thu, 29 Aug 2019 14:52:06 +0100
Stefan Hajnoczi <> wrote:

> Describe how shared memory region ID 0 is the DAX window and how
> FUSE_SETUPMAPPING maps file ranges into the window.
> 
> Signed-off-by: Stefan Hajnoczi <>
> ---
> The FUSE_SETUPMAPPING message is part of the virtio-fs Linux patches:
> https://gitlab.com/virtio-fs/linux/blob/virtio-fs/include/uapi/linux/fuse.h
> 
> v8:
>  * Make language about using both FUSE_READ/FUSE_WRITE and the DAX
>    Window clearer [Cornelia]
> v7:
>  * Clarify that the DAX Window is optional and can be used together with
>    FUSE_READ/FUSE_WRITE requests [Cornelia]
> v6:
>  * Document timing side-channel attacks [Michael]
> ---
>  virtio-fs.tex | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 66 insertions(+)

Reviewed-by: Cornelia Huck <>