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Date: Tue, 15 Jan 2013 17:09:53 +0530
From: "Suzuki K. Poulose" <suzuki@in.ibm.com>
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Subject: Re: [Qemu-devel] Qemu s390x emulation
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To: Alexander Graf <agraf@suse.de>
Cc: qemu-devel@nongnu.org

On 01/15/2013 04:39 PM, Alexander Graf wrote:
>
> On 15.01.2013, at 12:05, Suzuki K. Poulose wrote:
>
>> Hi
>>
>> I have been trying to setup a qemu session for qemu-system-s390x (on
>> x86_64) using a kernel (with initramfs built-in the kernel) without a
>> disk image. The kernel was built with s390 defconfig + disabled loadable
>> modules (just to keep everything inside the kernel).
>>
>> $ qemu-system-s390x -M s390 -kernel vmlinux -m 1024
>>
>>
>> The session dies in say 2 secs, with an exit code of 0. I searched for
>> some hints / success stories, couldn't find any.
>>
>> Am I doing something wrong here ? Please let me know the right procedure
>> for getting this up and running.
>
> S390 boots using an "image" file. Please try -kernel <kernel dir>/arch/s390/boot/image.
>
Tried that even, but not any better. btw, moved to the upstream git for 
qemu.

0
$/data/src/qemu/s390x-softmmu/qemu-system-s390x  -m 1024 -kernel ./image 
-nographic
$echo $?
0
$file ./image
./image: Linux S390

$ cd /data/src/qemu/ ; git log | head -n1
commit cf7c3f0cb5a7129f57fa9e69d410d6a05031988c

Thanks
Suzuki
>
> Alex
>