diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-12-27 11:30:05 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-27 11:30:05 +0100 |
| commit | 34bf5d0ff54d03f0a8ed690d47efb806ee2fffcb (patch) | |
| tree | 5465f999b2b067744220b66c89b75f0f10445d6e /arch/x86/kernel/mpparse.c | |
| parent | bd8b96dfc216eebc72950a6c40da8d3eca8667df (diff) | |
| parent | 79a66b96c339626a3e4b226fefc0e45244cfe6ff (diff) | |
Merge branch 'x86/core' into x86/cleanups
Diffstat (limited to 'arch/x86/kernel/mpparse.c')
| -rw-r--r-- | arch/x86/kernel/mpparse.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 0f4c1fd5a1f4..45e3b69808ba 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -586,26 +586,23 @@ static void __init __get_smp_config(unsigned int early) { struct intel_mp_floating *mpf = mpf_found; - if (x86_quirks->mach_get_smp_config) { - if (x86_quirks->mach_get_smp_config(early)) - return; - } + if (!mpf) + return; + if (acpi_lapic && early) return; + /* - * ACPI supports both logical (e.g. Hyper-Threading) and physical - * processors, where MPS only supports physical. + * MPS doesn't support hyperthreading, aka only have + * thread 0 apic id in MPS table */ - if (acpi_lapic && acpi_ioapic) { - printk(KERN_INFO "Using ACPI (MADT) for SMP configuration " - "information\n"); + if (acpi_lapic && acpi_ioapic) return; - } else if (acpi_lapic) - printk(KERN_INFO "Using ACPI for processor (LAPIC) " - "configuration information\n"); - if (!mpf) - return; + if (x86_quirks->mach_get_smp_config) { + if (x86_quirks->mach_get_smp_config(early)) + return; + } printk(KERN_INFO "Intel MultiProcessor Specification v1.%d\n", mpf->mpf_specification); |