Is there any way to add bmc/openbmc when runing edk2 system?

[高尼爾]

Hello

This question is similar to 

how the openbmc running in qemu communicate with the operating system running in another qemu via KCS/BT?

I want to test my EDK2 application to communicate with BMC via KCS , 

and  i don't have real BMC device , so  i had tried two method

Method1 that i donw't know how to connect two qemu

Method2 that it seems no function when adding bmc parmater

==== Method 1 ====

Execute two qemu

   QEMU1 - Host system (Run EDK2 Appplication)

   QEMU2 - OpenBMC

 Any way to connect QEMU1 and QEMU2 by setting configuration to achieve the following 

QEMU1  <-LPC/KCS-> QEMU2

==== Method 2 ====

Execute one QEMU

by command

-device ipmi-bmc-sim,id=bmc0 -device pci-ipmi-kcs,bmc=bmc0

Qemu1 - Host system (Run EDK2 Appplication)

But it seems no pci device for aspeed2600 and no any data from io port

Is there any idea or suggestion to do that?

Thanks