Re: shared memory mechanism other than ivshmem

[Philippe Mathieu-Daudé]

On 14/5/24 12:23, Sanjeev Kumar wrote:
> and forgot to mention. why our VM doesn't support ivshmem because it 
> doesn't have PCI supported.
> Is there any other shared memory mechanism QEMU which doesn't use the 
> PCI interface?
>
> On Tue, May 14, 2024 at 11:28 AM Sanjeev Kumar <reachsanjeev7@gmail.com 
> <mailto:reachsanjeev7@gmail.com>> wrote:
>
>     Hi,
>     is there any other mechanism of shared memory with QEMU other than
>     ivshmem?
>     I tried ivshmem with ubuntu vm with qemu x86_64 and it is working
>     fine. but our use case is with ARM and ivshmem isn't supported by
>     our custom VM. so please let me know if we have any other mechanism
>     other than ivshmem.

Hi Sanjeev,

You might be interested by Gustavo approach (he provided some
examples):
https://lore.kernel.org/qemu-devel/20240222222218.2261956-1-gustavo.romero@linaro.org/

Regards,

Phil.