[PATCH 15/17] xen: pvblock: Implement front-back protocol and do IO

[Simon Glass]

On Wed, 1 Jul 2020 at 10:30, Anastasiia Lukianenko <vicooodin at gmail.com> wrote:
>
> From: Anastasiia Lukianenko <anastasiia_lukianenko at epam.com>
>
> Implement Xen para-virtual frontend to backend communication
> and actually read/write disk data.
>
> This is based on mini-os implementation of the para-virtual block
> frontend driver.
>
> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko at epam.com>
> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko at epam.com>
> ---
>  drivers/xen/events.c  |   2 +-
>  drivers/xen/pvblock.c | 311 ++++++++++++++++++++++++++++++++++++++++--
>  2 files changed, 301 insertions(+), 12 deletions(-)

Please can you comment structs and non-trival functions?