>-Original Message-
>From: Jason Gunthorpe
>Subject: Re: [PATCH v3 00/19] Add a host IOMMU device abstraction to
>check with vIOMMU
>
>On Tue, May 07, 2024 at 02:24:30AM +, Duan, Zhenzhong wrote:
>> >On Mon, May 06, 2024 at 02:30:47AM +, Duan, Zhenzhong wrote:
>> >
>> >> I'm
On Tue, May 07, 2024 at 02:24:30AM +, Duan, Zhenzhong wrote:
> >On Mon, May 06, 2024 at 02:30:47AM +, Duan, Zhenzhong wrote:
> >
> >> I'm not clear how useful multiple iommufd instances support are.
> >> One possible benefit is for security? It may bring a slightly fine-grained
> >>
>-Original Message-
>From: Jason Gunthorpe
>Subject: Re: [PATCH v3 00/19] Add a host IOMMU device abstraction to
>check with vIOMMU
>
>On Mon, May 06, 2024 at 02:30:47AM +, Duan, Zhenzhong wrote:
>
>> I'm not clear how useful multiple iommufd instances support are.
>> One possible
On Mon, May 06, 2024 at 02:30:47AM +, Duan, Zhenzhong wrote:
> I'm not clear how useful multiple iommufd instances support are.
> One possible benefit is for security? It may bring a slightly fine-grained
> isolation in kernel.
No. I don't think there is any usecase, it is only harmful.
Hi Cédric,
>-Original Message-
>From: Cédric Le Goater
>Sent: Friday, May 3, 2024 10:04 PM
>To: Duan, Zhenzhong ; qemu-
>de...@nongnu.org
>Cc: alex.william...@redhat.com; eric.au...@redhat.com; m...@redhat.com;
>pet...@redhat.com; jasow...@redhat.com; j...@nvidia.com;
On 5/3/24 16:10, Jason Gunthorpe wrote:
On Fri, May 03, 2024 at 04:04:25PM +0200, Cédric Le Goater wrote:
However, have you considered another/complementary approach which
would be to create an host IOMMU (iommufd) backend object and a vIOMMU
device object together for each vfio-pci device
On Fri, May 03, 2024 at 04:04:25PM +0200, Cédric Le Goater wrote:
> However, have you considered another/complementary approach which
> would be to create an host IOMMU (iommufd) backend object and a vIOMMU
> device object together for each vfio-pci device being plugged in the
> machine ?
>
>
On 4/29/24 08:50, Zhenzhong Duan wrote:
Hi,
The most important change in this version is instroducing a common
HostIOMMUDeviceCaps structure in HostIOMMUDevice and a new interface
between vIOMMU and HostIOMMUDevice.
HostIOMMUDeviceClass::realize() is introduced to initialize
