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Commit b9f9294a authored by Glauber de Oliveira Costa's avatar Glauber de Oliveira Costa Committed by Ingo Molnar
Browse files

x86: add callin tests to cpu_up 



Now that we boot cpus here, callin_map has this meaning (same
as x86_64)

Signed-off-by: default avatarGlauber Costa <gcosta@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 07178269

arch/x86/kernel/smpboot_32.c

+13 −7
Original line number Diff line number Diff line
@@ -839,6 +839,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) 
{

	int apicid = cpu_present_to_apicid(cpu);

	unsigned long flags;

	int err;



	WARN_ON(irqs_disabled());
@@ -850,6 +851,14 @@ int __cpuinit native_cpu_up(unsigned int cpu) 
		return -EINVAL;

	}



	/*

	 * Already booted CPU?

	 */

	if (cpu_isset(cpu, cpu_callin_map)) {

		Dprintk("do_boot_cpu %d Already started\n", cpu);

		return -ENOSYS;

	}



	/*

	 * Save current MTRR state in case it was changed since early boot

	 * (e.g. by the ACPI SMI) to initialize new CPUs with MTRRs in sync:
@@ -863,15 +872,12 @@ int __cpuinit native_cpu_up(unsigned int cpu) 
			min_t(unsigned long, KERNEL_PGD_PTRS, USER_PGD_PTRS));

	flush_tlb_all();



	do_boot_cpu(apicid, cpu);



	/* In case one didn't come up */

	if (!cpu_isset(cpu, cpu_callin_map)) {

		printk(KERN_DEBUG "skipping cpu%d, didn't come online\n", cpu);

		return -EIO;

	err = do_boot_cpu(apicid, cpu);

	if (err < 0) {

		Dprintk("do_boot_cpu failed %d\n", err);

		return err;

	}





	/*

	 * Check TSC synchronization with the AP (keep irqs disabled

	 * while doing so):