Re: [F25 PATCH v2]: Add initial upstream support for kexec on aarch64

[Dave Young]

On 10/27/16 at 03:51pm, Pratyush Anand wrote:
> Hi Peter,
>
> On Wednesday 26 October 2016 10:50 AM, Pratyush Anand wrote:
> > (a) Proposed kexec-tools patch with suggested additional patches works,
> > but not with [1]. However, same kexec-tools did work when I used kernel
> > from [2] which is based on 4.9-rc2. What is the kernel version that will
> > be released in fc25? and which platform are you targeting? I can try to
> > see the necessary diff which might cause the issue on mustang/seattle.
> > Issue might not be related directly to kexec, and might be plat specific.
>
> I am not sure which kernel will be the part of FC25. You must have following
> patch in order to work kexec properly.

Pratyush, maybe you can try below build, it is 4.8.3:
http://arm.koji.fedoraproject.org/koji/buildinfo?buildID=406602
> commit e7cd190385d17790cc3eb3821b1094b00aacf325
> Author: AKASHI Takahiro 
> Date:   Mon Aug 22 15:55:24 2016 +0900
> arm64: mark reserved memblock regions explicitly in iomem
>
>
> Seattle worked fine with above patch. However, mustang still did not, and it
> has another issue, it prints error "Can't kexec: CPUs are stuck in the
> kernel."
>
> Top 3 patches from following solves issue with mustang as well.
>
> https://github.com/pratyushanand/linux/commits/fedora_arm64_devel
>
> 4bcf1ed08538 DO NOT UPSTREAM: arm64 support Mustang boot protocol
> 247b63d258cc DO NOT UPSTREAM: ARM64: Add cpu hotplug for ACPI parking method
> bb86a39d0b32 DO NOT UPSTREAM: ARM64: Add cpu hotplug for spin table method
>
> ~Pratyush
>
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