Re: [virtio-dev] [PATCH v3] VIRTIO_F_IO_BARRIER: use I/O barriers in driver

[Stefan Hajnoczi <stefanha@redhat.com>]

On Thu, May 10, 2018 at 11:41:26PM +0800, Tiwei Bie wrote:
> There will be hardware virtio devices in the future, which
> require drivers to use the barriers suitable for I/O devices,
> compared with software virtio devices which just require
> drivers to use the barriers suitable for CPU cores.
> 
> To fix the ordering issue for hardware virtio devices, add
> a new feature: VIRTIO_F_IO_BARRIER. When negotiated, driver
> will use the barriers suitable for I/O devices.
> 
> Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> ---
> v2 -> v3:
> - Update the feature bits allocation (Stefan);
> 
> v1 -> v2:
> - Rebase to the latest spec (MST);
> - Use a smaller textwidth (according to _vimrc);
> 
> RFC -> v1:
> - Use plural (Stefan);
> - Add more details (Stefan);
> 
>  content.tex | 20 ++++++++++++++++++--
>  1 file changed, 18 insertions(+), 2 deletions(-)

Thanks for your patience!

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

Attachment: signature.asc
Description: PGP signature