[PATCH 0/7] arm64 kexec kernel patches V3

Vivek Goyal
2014-10-02T19:08:36Z

On Tue, Sep 30, 2014 at 02:27:56PM -0700, Geoff Levand wrote:
> Hi Vivek,
>
> On Tue, 2014-09-30 at 16:29 -0400, Vivek Goyal wrote:
> > On Thu, Sep 25, 2014 at 12:23:26AM +0000, Geoff Levand wrote:
> >
> > [..]
> > > To load a second stage kernel and execute a kexec re-boot on arm64 my patches to
> > > kexec-tools [2], which have not yet been merged upstream, are needed.
> > >
> > > This series does not include some re-work of the spin-table CPU enable method
> > > that is needed to support it,
> >
> > How do I figure out if my system has spin table enable method or psci
> > enable method. Can one change it. I wanted to test your patches.
>
> The enable method is a function the firmware/bootloader provides.
> Multiple methods may be supported. The boot-wrapper-aarch64
> build defaults to spin-table, but has the configure option --enable-psci.
>
> For a running system you can check the device tree:
>
> cat /proc/device-tree/cpus/cpu\@0/enable-method | hexdump -C
>

Hi Geoff,

So system I have supports spin-table method for cpu bringup. How do I
test your patches with that system. Are there any patches on your
spin-table branch which can make it working?

Thanks
Vivek