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Re: [PATCH v2] ppc/pnv: Create BMC devices at machine init

From: Cédric Le Goater
Subject: Re: [PATCH v2] ppc/pnv: Create BMC devices at machine init
Date: Sat, 4 Apr 2020 17:46:58 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0

Hello Nathan, 

Some comments on the command line.

> $ timeout 3m unbuffer qemu-system-ppc64 -device ipmi-bmc-sim,id=bmc0 \
>                                         -device isa-ipmi-bt,bmc=bmc0,irq=10 \
>                                         -L images/ppc64le/ \
>                                         -bios skiboot.lid \
>                                         -machine powernv \

powernv8 or powernv9 specifies the POWER chip.

>                                         -display none \

I use -nograpĥics.

>                                         -initrd images/ppc64le/rootfs.cpio \
>                                         -kernel zImage.epapr \
>                                         -m 2G \
you can add adapters now on QEMU-5.0:

  -device ich9-ahci,id=sata0,bus=pcie.1,addr=0x0 \
file=./ubuntu-ppc64le-powernv.qcow2,if=none,id=drive0,format=qcow2,cache=none \
  -device ide-hd,bus=sata0.0,unit=0,drive=drive0,id=ide,bootindex=1 \
  -device e1000e,netdev=net0,mac=C0:FF:EE:00:01:03,bus=pcie.2,addr=0x0 \
  -netdev bridge,helper=/usr/libexec/qemu-bridge-helper,br=virbr0,id=net0

you can also add :

        -drive file=./witherspoon.pnor,format=raw,if=mtd

to map a PNOR on the LPC address space.

I have sent a patch fixing the issue you reported but you will need to
add -nodefaults now. I think this is the good direction. It would be
interesting for me if you could test it.



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