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Re: [PATCH 0/9] migration: Drop/unexport migration_is_device() and migra


From: Joao Martins
Subject: Re: [PATCH 0/9] migration: Drop/unexport migration_is_device() and migration_is_active()
Date: Mon, 16 Dec 2024 19:38:00 +0000

On 16/12/2024 17:33, Cédric Le Goater wrote:
> On 12/16/24 16:37, Joao Martins wrote:
>> On 16/12/2024 14:45, Avihai Horon wrote:
>>> On 16/12/2024 14:00, Joao Martins wrote:
>>>> On 16/12/2024 09:46, Avihai Horon wrote:
>>>> I also have a much
>>>> smaller series for that sort of unblockage that I can give you a pointer.
>>>
>>> Yes, if you have it at hand, that could be useful for testing next versions.
>>>
>>>> Though, eventually the optimizations we will do for VF dirty tracking for
>>>> vIOMMU
>>>> will apply to IOMMU HW too just so we minimize the amount of calls to get 
>>>> dirty
>>>> bits.
>>>>
>>>>> I didn't test it with iommu DPT as I don't have access to such HW.
>>>>> Cedric, I remember you said that you have such HW, it would be very
>>>>> helpful if you could test it.
>>>>>
>>>> I am starting to prep the unblocking vIOMMU for Qemu 10, so I can validate 
>>>> if
>>>> this series works as well -- but from what I have looked so far it should 
>>>> be
>>>> all
>>>> OK.
>>>
>>> Thanks, that wouldn't hurt :)
>>>
>>>> If it helps I have some pending series that lets you test emulated x86 
>>>> IOMMU
>>>> DPT support (either on intel-iommu or amd-iommu) that can help you when you
>>>> don't have the hardware to test.
>>>
>>> That would be great, I didn't know such thing existed.
>>>
>>
>> I did post it, but it was some time ago (2y). While I got some comments, but
>> failed to follow-up:
>>
>> https://lore.kernel.org/qemu-devel/20220428211351.3897-1-
>> joao.m.martins@oracle.com/#t
>>
>> The link above has bugs, but let me conjure the version alongside vIOMMU and 
>> the
>> other stuff I mentioned earlier.
> 
> Please Cc: me next time.
> 

OK



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