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Re: [PATCH v15 3/9] virtio-iommu: Implement attach/detach command

From: Auger Eric
Subject: Re: [PATCH v15 3/9] virtio-iommu: Implement attach/detach command
Date: Sat, 8 Feb 2020 15:00:54 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0

Hi Peter,

On 2/8/20 2:41 PM, Peter Xu wrote:
> On Sat, Feb 08, 2020 at 01:00:16PM +0100, Eric Auger wrote:
>> This patch implements the endpoint attach/detach to/from
>> a domain.
>> Domain and endpoint internal datatypes are introduced.
>> Both are stored in RB trees. The domain owns a list of
>> endpoints attached to it. Also helpers to get/put
>> end points and domains are introduced.
>> As for the IOMMU memory regions, a callback is called on
>> PCI bus enumeration that initializes for a given device
>> on the bus hierarchy an IOMMU memory region. The PCI bus
>> hierarchy is stored locally in IOMMUPciBus and IOMMUDevice
>> objects.
>> At the time of the enumeration, the bus number may not be
>> computed yet.
>> So operations that will need to retrieve the IOMMUdevice
>> and its IOMMU memory region from the bus number and devfn,
>> once the bus number is garanteed to be frozen, use an array
>> of IOMMUPciBus, lazily populated.
>> Signed-off-by: Eric Auger <address@hidden>
> Reviewed-by: Peter Xu <address@hidden>
> (Hope this is the last one missing r-b besides patch 8, I'll leave
>  patch 8 for the others or Michael when merging)

Sure. Many thanks!

Best Regards

> Thanks,

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