diff options
| author | Andi Kleen <ak@suse.de> | 2005-05-16 21:53:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-17 07:59:16 -0700 |
| commit | 18a2b6471277c9ffbaa14a0c87a11a075eb354bd (patch) | |
| tree | fda2050de7a28d40d036dcd02811ba315994a1c2 /arch/x86_64/kernel/smpboot.c | |
| parent | 751521149a05e308d863d01ced61080ce1a2ec99 (diff) | |
[PATCH] x86_64: Don't assume BSP has ID 0 in new smp bootup
This patch removes the assumption that LAPIC entries contain the BSP as its
first entry. This is a slight improvement to the temporary fix submitted by
Suresh Siddha.
- Removes assumption that LAPIC entries contain BSP first.
- Builds x86_acpiid_to_apicid[] and bios_cpu_apicid[] properly with BSP as
first entry.
- Made maxcpus=1 boot on these systems. Since the parsing earlier in
arch/x86_64/kernel/mpparse.c stopped after maxcpus entries, other entries
were not processed, this causes kernel not to boot on these systems.
TBD: x86_acpiid_to_apicid and bios_cpu_apicid[] seem to be exactly the
same. This could be removed, but might need more work to cleanup.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/smpboot.c')
| -rw-r--r-- | arch/x86_64/kernel/smpboot.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index d00e494c1a3..5abdee1e16a 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -645,7 +645,6 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid) printk("failed fork for CPU %d\n", cpu); return PTR_ERR(idle); } - x86_cpu_to_apicid[cpu] = apicid; cpu_pda[cpu].pcurrent = idle; @@ -954,7 +953,6 @@ void __cpuinit smp_prepare_cpus(unsigned int max_cpus) GET_APIC_ID(apic_read(APIC_ID)), boot_cpu_id); /* Or can we switch back to PIC here? */ } - x86_cpu_to_apicid[0] = boot_cpu_id; /* * Now start the IO-APICs |