Hi Shameer, Nicolin,

>-----Original Message-----
>From: Duan, Zhenzhong
>Subject: RE: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable nested
>SMMUv3
>
>Hi Shameer,
>
>>-----Original Message-----
>>From: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
>>Subject: RE: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable
>nested
>>SMMUv3
>>
>>
>>
>>> -----Original Message-----
>>> From: Nicolin Chen <nicolinc@nvidia.com>
>>> Sent: Thursday, January 23, 2025 4:10 AM
>>> To: Donald Dutile <ddutile@redhat.com>
>>> Cc: Shameerali Kolothum Thodi
>>> <shameerali.kolothum.thodi@huawei.com>; eric.auger@redhat.com; Peter
>>> Maydell <peter.maydell@linaro.org>; Jason Gunthorpe <jgg@nvidia.com>;
>>> Daniel P. Berrangé <berrange@redhat.com>; qemu-arm@nongnu.org;
>>> qemu-devel@nongnu.org; Linuxarm <linuxarm@huawei.com>; Wangzhou
>>> (B) <wangzhou1@hisilicon.com>; jiangkunkun <jiangkunkun@huawei.com>;
>>> Jonathan Cameron <jonathan.cameron@huawei.com>;
>>> zhangfei.gao@linaro.org
>>> Subject: Re: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable
>>> nested SMMUv3
>>>
>>> Hi Don,
>>>
>>> On Fri, Jan 10, 2025 at 11:05:24PM -0500, Donald Dutile wrote:
>>> > On 1/8/25 11:45 PM, Nicolin Chen wrote:
>>> > > On Mon, Dec 16, 2024 at 10:01:29AM +0000, Shameerali Kolothum Thodi
>>> wrote:
>>> > > > And patches prior to this commit adds that support:
>>> > > > 4ccdbe3: ("cover-letter: Add HW accelerated nesting support for arm
>>> > > > SMMUv3")
>>> > > >
>>> > > > Nicolin is soon going to send out those for review. Or I can include
>>> > > > those in this series so that it gives a complete picture. Nicolin?
>>> > >
>>> > > Just found that I forgot to reply this one...sorry
>>> > >
>>> > > I asked Don/Eric to take over that vSMMU series:
>>> > > https://lore.kernel.org/qemu-devel/Zy0jiPItu8A3wNTL@Asurada-Nvidia/
>>> > > (The majority of my effort has been still on the kernel side:
>>> > >   previously vIOMMU/vDEVICE, and now vEVENTQ/MSI/vCMDQ..)
>>> > >
>>> > > Don/Eric, is there any update from your side?
>>> > >
>>> > Apologies for delayed response, been at customer site, and haven't been
>>> keeping up w/biz email.
>>> > Eric is probably waiting for me to get back and chat as well.
>>> > Will look to reply early next week.
>>>
>>> I wonder if we can make some progress in Feb? If so, we can start
>>> to wrap up the iommufd uAPI patches for HWPT, which was a part of
>>> intel's series but never got sent since their emulated series is
>>> seemingly still pending?
>>
>>I think these are the  5 patches that we require from Intel pass-through series,
>>
>>vfio/iommufd: Implement [at|de]tach_hwpt handlers
>>vfio/iommufd: Implement HostIOMMUDeviceClass::realize_late() handler
>>HostIOMMUDevice: Introduce realize_late callback
>>vfio/iommufd: Add properties and handlers to
>>TYPE_HOST_IOMMU_DEVICE_IOMMUFD
>>backends/iommufd: Add helpers for invalidating user-managed HWPT
>>
>>See the commits from here,
>>https://github.com/hisilicon/qemu/commit/bbdc65af38fa5723f1bd9b026e2927
>3
>>0901f57b5
>>
>>[CC  Zhenzhong]
>>
>>Hi Zhenzhong,
>>
>>Just wondering what your plans are for the above patches.  If it make sense and
>>you
>>are fine with it, I think it is a good idea one of us can pick up those from that
>>series
>>and sent out separately so that it can get some review and take it forward.
>
>Emulated series is merged, I plan to send Intel pass-through series after
>Chinese festival vacation, but at least half a month later. So feel free to
>pick those patches you need and send for comments.

I plan to send vtd nesting series out this week and want to ask about status
of "1) HWPT uAPI patches in backends/iommufd.c" series.

If you had sent it out, I will do a rebase and bypass them to avoid duplicate
review effort in community. Or I can send them in vtd nesting series if you not yet.

Thanks
Zhenzhong

Hi Zhenzhong,

> -----Original Message-----
> From: Duan, Zhenzhong <zhenzhong.duan@intel.com>
> Sent: Monday, February 17, 2025 9:17 AM
> To: Shameerali Kolothum Thodi
> <shameerali.kolothum.thodi@huawei.com>; Nicolin Chen
> <nicolinc@nvidia.com>; Donald Dutile <ddutile@redhat.com>
> Cc: eric.auger@redhat.com; Peter Maydell <peter.maydell@linaro.org>;
> Jason Gunthorpe <jgg@nvidia.com>; Daniel P. Berrangé
> <berrange@redhat.com>; qemu-arm@nongnu.org; qemu-
> devel@nongnu.org; Linuxarm <linuxarm@huawei.com>; Wangzhou (B)
> <wangzhou1@hisilicon.com>; jiangkunkun <jiangkunkun@huawei.com>;
> Jonathan Cameron <jonathan.cameron@huawei.com>;
> zhangfei.gao@linaro.org; Peng, Chao P <chao.p.peng@intel.com>
> Subject: RE: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable
> nested SMMUv3
> 
> Hi Shameer, Nicolin,
> 
[...]

> >>Hi Zhenzhong,
> >>
> >>Just wondering what your plans are for the above patches.  If it make
> sense and
> >>you
> >>are fine with it, I think it is a good idea one of us can pick up those from
> that
> >>series
> >>and sent out separately so that it can get some review and take it
> forward.
> >
> >Emulated series is merged, I plan to send Intel pass-through series after
> >Chinese festival vacation, but at least half a month later. So feel free to
> >pick those patches you need and send for comments.
> 
> I plan to send vtd nesting series out this week and want to ask about status
> of "1) HWPT uAPI patches in backends/iommufd.c" series.
> 
> If you had sent it out, I will do a rebase and bypass them to avoid duplicate
> review effort in community. Or I can send them in vtd nesting series if you
> not yet.

No. It is not send out yet. Please include it in your vtd nesting series. Thanks.

I am currently working on refactoring the SMMUv3 accel series and the
"Add HW accelerated nesting support for arm SMMUv3" series
from Nicolin.

Thanks,
Shameer.

Hi Shammeer,


On 2/18/25 7:52 AM, Shameerali Kolothum Thodi wrote:
> Hi Zhenzhong,
>
>> -----Original Message-----
>> From: Duan, Zhenzhong <zhenzhong.duan@intel.com>
>> Sent: Monday, February 17, 2025 9:17 AM
>> To: Shameerali Kolothum Thodi
>> <shameerali.kolothum.thodi@huawei.com>; Nicolin Chen
>> <nicolinc@nvidia.com>; Donald Dutile <ddutile@redhat.com>
>> Cc: eric.auger@redhat.com; Peter Maydell <peter.maydell@linaro.org>;
>> Jason Gunthorpe <jgg@nvidia.com>; Daniel P. Berrangé
>> <berrange@redhat.com>; qemu-arm@nongnu.org; qemu-
>> devel@nongnu.org; Linuxarm <linuxarm@huawei.com>; Wangzhou (B)
>> <wangzhou1@hisilicon.com>; jiangkunkun <jiangkunkun@huawei.com>;
>> Jonathan Cameron <jonathan.cameron@huawei.com>;
>> zhangfei.gao@linaro.org; Peng, Chao P <chao.p.peng@intel.com>
>> Subject: RE: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable
>> nested SMMUv3
>>
>> Hi Shameer, Nicolin,
>>
> [...]
>
>>>> Hi Zhenzhong,
>>>>
>>>> Just wondering what your plans are for the above patches.  If it make
>> sense and
>>>> you
>>>> are fine with it, I think it is a good idea one of us can pick up those from
>> that
>>>> series
>>>> and sent out separately so that it can get some review and take it
>> forward.
>>> Emulated series is merged, I plan to send Intel pass-through series after
>>> Chinese festival vacation, but at least half a month later. So feel free to
>>> pick those patches you need and send for comments.
>> I plan to send vtd nesting series out this week and want to ask about status
>> of "1) HWPT uAPI patches in backends/iommufd.c" series.
>>
>> If you had sent it out, I will do a rebase and bypass them to avoid duplicate
>> review effort in community. Or I can send them in vtd nesting series if you
>> not yet.
> No. It is not send out yet. Please include it in your vtd nesting series. Thanks.
>
> I am currently working on refactoring the SMMUv3 accel series and the
> "Add HW accelerated nesting support for arm SMMUv3" series
so will you send "Add HW accelerated nesting support for arm SMMUv3" or
do you want me to do it? Thanks Eric
> from Nicolin.
>
> Thanks,
> Shameer.
>
>

> -----Original Message-----
> From: Eric Auger <eric.auger@redhat.com>
> Sent: Thursday, March 6, 2025 6:00 PM
> To: Shameerali Kolothum Thodi
> <shameerali.kolothum.thodi@huawei.com>; Duan, Zhenzhong
> <zhenzhong.duan@intel.com>; Nicolin Chen <nicolinc@nvidia.com>;
> Donald Dutile <ddutile@redhat.com>
> Cc: Peter Maydell <peter.maydell@linaro.org>; Jason Gunthorpe
> <jgg@nvidia.com>; Daniel P. Berrangé <berrange@redhat.com>; qemu-
> arm@nongnu.org; qemu-devel@nongnu.org; Linuxarm
> <linuxarm@huawei.com>; Wangzhou (B) <wangzhou1@hisilicon.com>;
> jiangkunkun <jiangkunkun@huawei.com>; Jonathan Cameron
> <jonathan.cameron@huawei.com>; zhangfei.gao@linaro.org; Peng, Chao P
> <chao.p.peng@intel.com>
> Subject: Re: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable
> nested SMMUv3
> 
> Hi Shammeer,
> 

Hi Eric,

> >
> > I am currently working on refactoring the SMMUv3 accel series and the
> > "Add HW accelerated nesting support for arm SMMUv3" series
> so will you send "Add HW accelerated nesting support for arm SMMUv3" or
> do you want me to do it? Thanks Eric

Yes. I am on it. Hopefully I will be able to send out everything next week.

Thanks,
Shameer

Hi Shameer,

On 3/6/25 7:27 PM, Shameerali Kolothum Thodi wrote:
>
>> -----Original Message-----
>> From: Eric Auger <eric.auger@redhat.com>
>> Sent: Thursday, March 6, 2025 6:00 PM
>> To: Shameerali Kolothum Thodi
>> <shameerali.kolothum.thodi@huawei.com>; Duan, Zhenzhong
>> <zhenzhong.duan@intel.com>; Nicolin Chen <nicolinc@nvidia.com>;
>> Donald Dutile <ddutile@redhat.com>
>> Cc: Peter Maydell <peter.maydell@linaro.org>; Jason Gunthorpe
>> <jgg@nvidia.com>; Daniel P. Berrangé <berrange@redhat.com>; qemu-
>> arm@nongnu.org; qemu-devel@nongnu.org; Linuxarm
>> <linuxarm@huawei.com>; Wangzhou (B) <wangzhou1@hisilicon.com>;
>> jiangkunkun <jiangkunkun@huawei.com>; Jonathan Cameron
>> <jonathan.cameron@huawei.com>; zhangfei.gao@linaro.org; Peng, Chao P
>> <chao.p.peng@intel.com>
>> Subject: Re: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable
>> nested SMMUv3
>>
>> Hi Shammeer,
>>
> Hi Eric,
>
>>> I am currently working on refactoring the SMMUv3 accel series and the
>>> "Add HW accelerated nesting support for arm SMMUv3" series
>> so will you send "Add HW accelerated nesting support for arm SMMUv3" or
>> do you want me to do it? Thanks Eric
> Yes. I am on it. Hopefully I will be able to send out everything next week.
Sure. No pressure. I will continue reviewing Zhenzhong's series then.
Looking forward to seeing your respin.

Eric
>
> Thanks,
> Shameer