Re: [PATCH v9 11/15] s390x: protvirt: Disable address checks for PV guest IO emulation

[Christian Borntraeger]

On 12.03.20 17:07, Janosch Frank wrote:
> On 3/12/20 4:41 PM, Christian Borntraeger wrote:
>> On 11.03.20 14:21, Janosch Frank wrote:
>>> IO instruction data is routed through SIDAD for protected guests, so
>>> adresses do not need to be checked, as this is kernel memory.
>>
>> Maybe also mention that the data structures for  the I/O instrutions
>> start at offset 0 of the SIDA?
> 
> You mean in the comment for get_address_from_regs() or in the commit
> message? It would certainly make sense for get_address_from_regs().

Maybe both?