[libvirt] [PATCH v8 00/14] PCI passthrough support on s390

[Yi Min Zhao]

在 2018/11/13 下午10:35, Andrea Bolognani 写道:
> On Thu, 2018-11-08 at 19:00 +0800, Yi Min Zhao wrote:
>> Abstract
>> ========
>> The PCI representation in QEMU has been extended for S390
>> allowing configuration of zPCI attributes like uid (user-defined
>> identifier) and fid (PCI function identifier).
>> The details can be found here:
>> https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg07262.html
>>
>> To support the new zPCI feature of the S390 platform, a new element of
>> PCI address is introduced. It has two optional attributes, @uid and
>> @fid. For example:
>>    <hostdev mode='subsystem' type='pci'>
>>      <driver name='vfio'/>
>>      <source>
>>        <address domain='0x0001' bus='0x00' slot='0x00' function='0x0'/>
>>      </source>
>>      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'>
>>        <zpci uid='0x0003' fid='0x00000027'/>
>>      </address>
>>    </hostdev>
>>
>> If they are defined by the user, unique values within the guest domain
>> must be used. If they are not specified and the architecture requires
>> them, they are automatically generated with non-conflicting values.
>>
>> zPCI address as an extension of the PCI address are stored in a new
>> structure 'virZPCIDeviceAddress' which is a member of common PCI
>> Address structure. Additionally, two hashtables are used for assignment
>> and reservation of zPCI uid/fid.
>>
>> In support of extending the PCI address, a new PCI address extension flag is
>> introduced. This extension flag allows is not only dedicated for the S390
>> platform but also other architectures needing certain extensions to PCI
>> address space.
> I have now provided R-b for the only patch that was still missing it,
> and as far as I'm concerned the series is ready to be pushed.
Thanks very much!
>
> Dan, do you have any remaining concerns about the XML syntax, or can
> I go ahead and push?
>

-- 
Yi Min