Re: [Qemu-devel] [PATCH v3 0/2] PCI-e device multi-function hot-add support

[Cao jin <caoj.fnst@cn.fujitsu.com>]

On 10/13/2015 04:49 PM, Michael S. Tsirkin wrote:
> On Tue, Oct 13, 2015 at 04:41:33PM +0800, Cao jin wrote:
>> Support PCI-e device hot-add multi-function via device_add, just ensure
>> add the function 0 is added last. While allow user to roll back in the
>> middle via device_del, in case user regret.
>
> This patch doesn't seem to account of AIR though.
>

Yes, but the AIR function seems never be used(nobody calls the function  
pcie_ari_init()), so I am a little confused about should it be consindered?

>> changelog:
>> 1. Flag device as unexposed when func 0 doesn`t exist, via return 0xFF
>>     in case of gratuitous pci bus scan.
>> 2. Since device is unexposed to guest, can remove function individually,
>>     without interaction with the guest.
>>
>> Cao jin (2):
>>    enable multi-function hot-add
>>    remove function during multi-function hot-add
>>
>>   hw/pci/pci.c      | 10 ++++++++++
>>   hw/pci/pci_host.c |  6 +++++-
>>   hw/pci/pcie.c     | 38 +++++++++++++++++++++++++-------------
>>   3 files changed, 40 insertions(+), 14 deletions(-)
>>
>> --
>> 2.1.0
> .
>

-- 
Yours Sincerely,

Cao Jin