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xen-ia64-devel
[Xen-ia64-devel] Re: xen-unstable broken due to CONFIG_SMP problem
On 12 Jan 2006, at 20:48, Magenheimer, Dan (HP Labs Fort Collins) wrote:
Since this patch is really a hack, I thought I would
solicit better patches first. In particular, there
are several hacks to compile !CONFIG_SMP on Xen/ia64...
see config.h and note that most of smpboot.c is #ifdef
CONFIG_SMP (but probably need not be). Or, since
Xen/x86 always is compiled with CONFIG_SMP, it might
be best to fix CONFIG_SMP (flush_tlb_mask(), possibly
other fixes) and also always compile Xen/ia64 with
CONFIG_SMP.
Any comments? Any volunteers?
In this case the best and simplest fix will simply be to define
cpu_online_map as:
cpumask_t cpu_online_map = CPU_MASK_CPU0.
Or, if you want to share the definition with SMP builds then declare
cpu_online_map unconditionally with no initialiser and then sometime
during boot make sure you do cpu_online_map =
cpumask_of_cpu(boot_cpu_id);
-- Keir
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