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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



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