From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [PATCH] Enable 32bit dirty log pointers on 64bit host
Date: Thu, 22 Oct 2009 18:39:53 -0200
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Cc: kvm@vger.kernel.org, Avi Kivity <avi@redhat.com>,
	kvm-ppc <kvm-ppc@vger.kernel.org>, Arnd Bergmann <arnd@arndb.de>
To: Alexander Graf <agraf@suse.de>
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On Wed, Oct 21, 2009 at 04:08:29PM +0200, Alexander Graf wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> With big endian userspace, we can't quite figure out if a pointer
> is 32 bit (shifted >> 32) or 64 bit when we read a 64 bit pointer.
> 
> This is what happens with dirty logging. To get the pointer interpreted
> correctly, we thus need Arnd's patch to implement a compat layer for
> the ioctl:
> 
> A better way to do this is to add a separate compat_ioctl() method that
> converts this for you.
> 
> From: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Acked-by: Alexander Graf <agraf@suse.de>
> 
> ---
> 
> Changes from Arnd's example version:
> 
>   - s/log.log/log/ (Avi)
>   - use sizeof(compat_log) (Avi)
>   - compile fixes

Applied, thanks.