On Fri, Apr 1, 2016 at 11:12 AM, Balbir Singh <bsingharora@xxxxxxxxx> wrote:
>
>
> On 01/04/16 00:38, Laurent Vivier wrote:
>> Hi,
>>
>>
>> could you add "kvmtool" in the subject, next time, please? :)
>> And it could be a good idea to send to kvm-ppc ML too.
> You mean like in [kvmtool]? The cover letter does have kvmtool, I think
> adding [kvmtool] tag helps. I'll keep it in mind
>> On 31/03/2016 13:28, Balbir Singh wrote:
>>> Changelog v2: Add support for running a task on all cpus by
>>> Michael Ellerman. Large improvements to patch 2/4
>>>
>>> This patchset adds support for ppc64le. As a part of the support 1/4 converts
>>> key data structures in the fdt to big endian. 2/4 introduces h_set_mode call
>>> to support little endian interrupt processing. This requires support to execute
>>> and queue commands to a particular vcpu and hence a generic infrastructure
>>> is added in patch 2/4. Patch 3/4 fixes a race condition found during exit.
>>> Patch 4/4 adds support for fixing spapr_pci to support little endian guests
>>> so that virtio-pci can be detected and virtio can work
>>>
>>> This patchset was tested on x64 (on my laptop) and on a ppc64le system.
>>>
>>> Balbir Singh (5):
>>> Add basic little endian support.
>>> Add basic infrastructure to run tasks on vCPUs
>>> Implement H_SET_MODE for ppc64le
>>> Fix a race during exit processing
>>> Implement spapr pci for little endian systems.
>> I was trying to use kvmtool on ppc64, some days ago, and I was not able
>> to run anything (yes, I'm stupid), So could you also update the README
>> with some ppc64/ppc64le stuff explaining how to use kvmtool on POWER?
> No.. I don't think anyone is stupid, may be it just doesn't work. For ppc64le
> here are the steps. I'll write a README after this series is committed
>
> 1. Make sure you have this patchset
> 2. Compile a ppc64le_defconfig kernel
> 3. Strip the elf header from vmlinux (yes, we don't yet have an elf parser - TODO)
> 4. lkvm run -c <cpus> -m <mem{constrained to 4G}> -k <kernel from step 3> -i <initrd> -d <diskimage> -p <args> --console hv
>
> There are two limitations that need to be fixed
> 1. memory is limited to 4G because of the way RTAS is currently setup in kvmtool, I have a brute force
> fix for it, I'll post it after this series is merged
> 2. HPT size is limited to 16MB, will post a patch after this series is merged
>
> TODOs
> 1. Implement an elf parser so that we don't have to do step 3
>
>
>> Or give me a link to the information, and I'll do.
> I hope this helps, I can do some documentation once we get the limitations and TODOs
> resolved
>> Thanks,
>> Laurent
> Thanks for looking into this
> Balbir
Hi,
Did the instructions help? Any luck with running kvmtool?
Balbir
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