Re: [Xen-devel][PATCH][RESEND] PV drivers for HVM guests

["Ky Srinivasan" <ksrinivasan@xxxxxxxxxx>]

We intend  to maintain the source for the unmodified drivers separately in our 
source tree. The idea is that this will track the official xen source tree; we 
would apply the patch to target this source for a particular unmodified guest 
target. This would eliminate the need to carry the compatibility baggage in the 
pristine unmodified driver code.

Regards,

K. Y 

>>> On Wed, Oct 18, 2006 at  7:56 PM, in message
<200610182356.k9INuAF03840@xxxxxxxxxxxxxxxxxxxxxxxxxxx>,
<Doi.Tsunehisa@xxxxxxxxxxxxxx> wrote: 
> Hi,
> 
> You (ksrinivasan) said:
>> I am enclosing the patch I have been working on. I have tested this on
>> sles9 (2.6.5) and RHEL 4 (2.6.9). The patch applies cleanly on ChangeSet
>> 11635. This patch was cleaned up based on Ian's and DOI's work.
>> 
>> Signed- off- by: K. Y. Srinivasan (ksrinivasan@xxxxxxxxxx)
> 
>  The patch seems that the source files of unmodified_drivers are split
> from linux- 2.6- xen- sparse, I think.
> 
>   I think it because ...
> 
>> diff - Nur unmodified_drivers/linux- 2.6/blkfront/blkfront.c 
> unmodified_drivers_new/linux- 2.6/blkfront/blkfront.c
>> ---  unmodified_drivers/linux- 2.6/blkfront/blkfront.c       2006- 10- 04 
>> 00:38:41.000000000 
> - 0400
>> +++ unmodified_drivers_new/linux- 2.6/blkfront/blkfront.c    2006- 10- 13 
> 11:11:43.000000000 - 0400
> 
> and
> 
>> @@ - 47,6 +47,7 @@
>>  #include <xen/gnttab.h>
>>  #include <asm/hypervisor.h>
>>  #include <asm/maddr.h>
>> +#include <xen/platform_compat.h>
>>  
>>  #define BLKIF_STATE_DISCONNECTED 0
>>  #define BLKIF_STATE_CONNECTED    1
> 
>   xen/platform_compat.h is introduced, but it exists in unmodified_drviers
> except linux- 2.6- xen- sparse.
> 
>   Am I true ?
> 
> Thanks,
> -  Tsunehisa Doi


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