From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Vrabel <david.vrabel@citrix.com>
Subject: Re: linux PVH broken in 3.16.0-rc7
	(arch_gnttab_map_shared)
Date: Mon, 4 Aug 2014 11:33:54 +0100
Message-ID: <53DF6192.3040006@citrix.com>
References: <20140801164619.1a586561@mantra.us.oracle.com>
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To: Mukesh Rathor <mukesh.rathor@oracle.com>, "boris.ostrovsky@oracle.com" <boris.ostrovsky@oracle.com>, "Xen-devel@lists.xensource.com" <Xen-devel@lists.xensource.com>
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On 02/08/14 00:46, Mukesh Rathor wrote:
> Hi,
> 
> Not sure if this already got reported, but it appears 
> 
> commit b7dd0e3
> Author: David Vrabel <david.vrabel@citrix.com>
> Date:   Fri Jul 11 16:42:34 2014 +0100
> 
>     x86/xen: safely map and unmap grant frames when in atomic context
> 
> has broken boot of domU PVH. The reason being arch_gnttab_map_shared
> is getting called before gnttab_shared_vm_area gets initialized by
> arch_gnttab_init(). As the comment says,

Well that makes no sense since all those functions are PV only.  This
patch did not change how PVH guests were initialized.

David