>-Original Message-
>From: Cédric Le Goater
>Sent: Tuesday, November 21, 2023 4:06 PM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>Hello Zhenzhong,
>
>>>> Below are other gaps I can think of for now:
>>>>
Hello Zhenzhong,
Below are other gaps I can think of for now:
Gaps:
1. dirty page sync, WIP (Joao)
2. p2p dma not supported yet.
3. fd passing with mdev not support ram discard(vfio-pci) as no way to know it's
a mdev from a fd.
Call the section Caveats maybe?
Got it.
It looks like v7 shou
>-Original Message-
>From: Cédric Le Goater
>Sent: Tuesday, November 21, 2023 1:09 AM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>Hello Zhenzhong
>
>On 11/20/23 11:07, Duan, Zhenzhong wrote:
>> Hi Cédric,
>>
>
Hello Zhenzhong
On 11/20/23 11:07, Duan, Zhenzhong wrote:
Hi Cédric,
-Original Message-
From: Cédric Le Goater
Sent: Monday, November 20, 2023 4:25 PM
Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
A similar issue with a fix submitted below, ccing
Hi Cédric,
>-Original Message-
>From: Cédric Le Goater
>Sent: Monday, November 20, 2023 4:25 PM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>>>>> A similar issue with a fix submitted below, ccing related people.
>>&g
A similar issue with a fix submitted below, ccing related people.
https://lists.gnu.org/archive/html/qemu-devel/2023-11/msg02937.html
It looks the fix will not work for hotplug.
Or below qemu cmdline may help:
"-cpu host,host-phys-bits-limit=39"
don't you have the same issue with legacy VFIO co
>-Original Message-
>From: Cédric Le Goater
>Sent: Friday, November 17, 2023 9:56 PM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>On 11/17/23 14:29, Eric Auger wrote:
>> Hi Cédric,
>>
>> On 11/17/23 12:39,
On 11/17/23 14:29, Eric Auger wrote:
Hi Cédric,
On 11/17/23 12:39, Duan, Zhenzhong wrote:
Hi Cédric,
-Original Message-
From: Cédric Le Goater
Sent: Friday, November 17, 2023 7:10 PM
Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
Hello,
+int
Hi Cédric,
On 11/17/23 12:39, Duan, Zhenzhong wrote:
> Hi Cédric,
>
>> -Original Message-
>> From: Cédric Le Goater
>> Sent: Friday, November 17, 2023 7:10 PM
>> Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>>
>>
On 11/17/23 12:39, Duan, Zhenzhong wrote:
Hi Cédric,
-Original Message-
From: Cédric Le Goater
Sent: Friday, November 17, 2023 7:10 PM
Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
Hello,
+int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t
Hi Cédric,
>-Original Message-
>From: Cédric Le Goater
>Sent: Friday, November 17, 2023 7:10 PM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>Hello,
>
>> +int iommufd_backend_map_dma(IOMMUFDBackend *be, uin
Hello,
+int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova,
+ram_addr_t size, void *vaddr, bool readonly)
+{
+int ret, fd = be->fd;
+struct iommu_ioas_map map = {
+.size = sizeof(map),
+.flags = IOMMU_IOAS_MAP_READABL
>-Original Message-
>From: Eric Auger
>Sent: Thursday, November 16, 2023 4:33 PM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>Hi Zhenzhong,
>
>On 11/16/23 05:04, Duan, Zhenzhong wrote:
>> Hi Eric,
>>
>>> --
Hi Zhenzhong,
On 11/16/23 05:04, Duan, Zhenzhong wrote:
> Hi Eric,
>
>> -Original Message-
>> From: Eric Auger
>> Sent: Wednesday, November 15, 2023 8:53 PM
>> Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>>
>
Hi Eric,
>-Original Message-
>From: Eric Auger
>Sent: Wednesday, November 15, 2023 8:53 PM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>Hi Zhenzhong,
>
>On 11/14/23 11:09, Zhenzhong Duan wrote:
>> From: Eric Auger
>
Hi Zhenzhong,
On 11/14/23 11:09, Zhenzhong Duan wrote:
> From: Eric Auger
>
> Introduce an iommufd object which allows the interaction
> with the host /dev/iommu device.
>
> The /dev/iommu can have been already pre-opened outside of qemu,
> in which case the fd can be passed directly along with t
On 11/15/23 05:06, Duan, Zhenzhong wrote:
-Original Message-
From: Cédric Le Goater
Sent: Tuesday, November 14, 2023 9:29 PM
Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
On 11/14/23 11:09, Zhenzhong Duan wrote:
From: Eric Auger
Introduce an iommufd
>-Original Message-
>From: Cédric Le Goater
>Sent: Tuesday, November 14, 2023 9:29 PM
>Subject: Re: [PATCH v6 01/21] backends/iommufd: Introduce the iommufd object
>
>On 11/14/23 11:09, Zhenzhong Duan wrote:
>> From: Eric Auger
>>
>> Introduc
On 11/14/23 11:09, Zhenzhong Duan wrote:
From: Eric Auger
Introduce an iommufd object which allows the interaction
with the host /dev/iommu device.
The /dev/iommu can have been already pre-opened outside of qemu,
in which case the fd can be passed directly along with the
iommufd object:
This
From: Eric Auger
Introduce an iommufd object which allows the interaction
with the host /dev/iommu device.
The /dev/iommu can have been already pre-opened outside of qemu,
in which case the fd can be passed directly along with the
iommufd object:
This allows the iommufd object to be shared accr
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