Re: Question about CXL emulation in QEMU

[Alex Bennée]

"周童" <273415826@qq.com> writes:

> Dear Experts,

(add maintainers to CC)

>
> I am writing to seek your assistance about CXL emulation in QEMU. I am Zhou 
> Tong and I am researching how to use QEMU
> to simulate CXL over Ethernet。
>
> I want to implement remote registration of CXL.mem devices based on the QOM 
> model. The general idea is: the CXL slave
> side notifies the master side of the size of the CXL memory and other control 
> information through Ethernet, and the master
> side registers the CXL device locally based on the control information. When 
> the master accesses the CXL device, KVM is
> responsible for intercepting the action of accessing the memory, and 
> encapsulates the CXL message and forwards it to the
> slave through Ethernet，ultimately achieving remote CXL memory access.. Ask 
> the experts how to register the CXL device
> locally based on the control information without occupying the HVA resources 
> of the master host (OR display the CXL
> device).
>
> Thank you in advance for your attention to this email, and I eagerly look 
> forward to any insights or advice you may be able to
> provide. If there is a more convenient time for us to discuss this matter 
> further, please let me know, and I will be more than
> happy to accommodate your schedule.
>
> Once again, thank you for your impactful contributions to the open-source 
> community, and I greatly appreciate your time and
> consideration.
>
> Regard,
>
> Zhou Tong.
>
> -------------------------------------------------------------------------------------------------------------------------
>
>  *  周童  
>    273415826@qq.com  
> * 

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro