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Subject: Re: [Qemu-devel] [PULL 09/20] s390x/ipl: Remove redundant usage of
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To: Christian Borntraeger <borntraeger@de.ibm.com>, Cornelia Huck <cornelia.huck@de.ibm.com>, peter.maydell@linaro.org
Cc: qemu-devel@nongnu.org, jfrei@linux.vnet.ibm.com, agraf@suse.de, Alexander Yarygin <yarygin@linux.vnet.ibm.com>



On 18/05/2016 12:09, Christian Borntraeger wrote:
>> > This probably breaks reboot after migration from 2.6.
>> > 
>> > If that's fine, all the better. :)
> Our BIOS is in RAM and usually overwritten by the guest.
> On reboot this is reloaded from whatever BIOS is on the target,
> so migration should still work.

Indeed if the BIOS is not in its own RAMBlock then it's fine.

Thanks!

Paolo

> I have verified that migration between 2.4 and 2.6  plus these
> patches forth and back still allows to reboot.
> 
> In other words the bios and the code in ipl.c have to be updated
> in lockstep, then everything is fine.
> 
> 
>