Kexec for PPC32 (6xx) machines
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Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | powerpc: Setup OF properties for ppc32 kexecarch/ arch/ | +39 | 0 replies | |
| 2/3 | powerpc: Make default kexec/crash_kernel ops implicitarch/ | +9 | 3 replies | |
| 3/3 | powerpc: Remove default kexec/crash_kernel ops assignmentsarch/ arch/ arch/ +4 more | +0 | 0 replies |
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Cover letter [PATCH 0/3] Kexec for PPC32 (6xx) machines
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
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Anton Vorontsov email: [email protected] irc://irc.freenode.net/bd2