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| author | Glauber de Oliveira Costa <gcosta@redhat.com> | 2008-03-19 18:25:15 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:41:00 +0200 |
| commit | f915d7f46b84192a19647c8e6b111a7e518875cb (patch) | |
| tree | 2f45f895e62233677aadc0ae9abbfc162eeaf0fc /arch/x86 | |
| parent | x86: isolate logic to disable smp (diff) | |
| download | linux-f915d7f46b84192a19647c8e6b111a7e518875cb.tar.xz linux-f915d7f46b84192a19647c8e6b111a7e518875cb.zip | |
x86: do tests before do_boot_cpu in i386
Do tests before do_boot_cpu in native_cpu_up for i386.
Tests are a little bit broader than originally, and are the
same as x86_64. Test for smp_callin is not applicable right now
and is deferred.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/smpboot_32.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c index 8144aa3a1edf..147af81f70ea 100644 --- a/arch/x86/kernel/smpboot_32.c +++ b/arch/x86/kernel/smpboot_32.c @@ -711,10 +711,6 @@ static int __cpuinit __smp_prepare_cpu(int cpu) int apicid, ret; apicid = per_cpu(x86_cpu_to_apicid, cpu); - if (apicid == BAD_APICID) { - ret = -ENODEV; - goto exit; - } info.complete = &done; info.apicid = apicid; @@ -952,10 +948,22 @@ void __init native_smp_prepare_boot_cpu(void) int __cpuinit native_cpu_up(unsigned int cpu) { + int apicid = cpu_present_to_apicid(cpu); unsigned long flags; -#ifdef CONFIG_HOTPLUG_CPU int ret = 0; + WARN_ON(irqs_disabled()); + + Dprintk("++++++++++++++++++++=_---CPU UP %u\n", cpu); + + if (apicid == BAD_APICID || apicid == boot_cpu_physical_apicid || + !physid_isset(apicid, phys_cpu_present_map)) { + printk(KERN_ERR "%s: bad cpu %d\n", __func__, cpu); + return -EINVAL; + } + +#ifdef CONFIG_HOTPLUG_CPU + /* * We do warm boot only on cpus that had booted earlier * Otherwise cold boot is all handled from smp_boot_cpus(). |