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Re: [PATCH] xen-bus: only set the xen device frontend state if it is mis
From: |
Anthony PERARD |
Subject: |
Re: [PATCH] xen-bus: only set the xen device frontend state if it is missing |
Date: |
Mon, 23 Sep 2019 16:03:56 +0100 |
User-agent: |
Mutt/1.12.2 (2019-09-21) |
On Wed, Sep 18, 2019 at 12:57:44PM +0100, Paul Durrant wrote:
> From: Mark Syms <address@hidden>
>
> Some toolstack implementations will set the frontend xenstore
> keys to Initialising which will then trigger the in guest PV
> drivers to begin initialising and some implementations will
> then set their state to Closing. If this has occurred then
> device realize must not overwrite the frontend keys as then
> the handshake will stall.
>
> Signed-off-by: Mark Syms <address@hidden>
>
> Also avoid creating the frontend area if it already exists.
>
> Signed-off-by: Paul Durrant <address@hidden>
Reviewed-by: Anthony PERARD <address@hidden>
Thanks,
--
Anthony PERARD