[PATCH 0/3] Kexec for PPC32 (6xx) machines
Anton Vorontsov
avorontsov at ru.mvista.com
Wed Dec 17 03:22:17 EST 2008
Hi all,
This is Kexec part of the larger series[1] posted few months ago.
I eliminated Kdump part in this resend (will post it as a separate
entity later).
Milton Miller hinted that current PPC32 Kexec implementation may
not work on SMP hardware. I don't have any multi-core machines
handy to actually try and/or fix it, but support for SMP should be
straightforward: just need to bring the secondary CPUs down before
Kexec'ing (the code is already in the machine_kexec_64.c, just
needs to be factored out).
The arch/powerpc/Kconfig already states that the Kexec support
is experimental and may not work on certain hardware, so I don't
see any reason to add !SMP dependency.
Anyway, the majority of boards are UP and they don't need any fancy
care to work. So let's support them.
[1] http://ozlabs.org/pipermail/linuxppc-dev/2008-August/061161.html
--
Anton Vorontsov
email: cbouatmailru at gmail.com
irc://irc.freenode.net/bd2
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