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-rw-r--r--arch/x86/kernel/apic_64.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 0794646e68f..d7d3594f93e 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -87,6 +87,10 @@ static unsigned long apic_phys;
unsigned long mp_lapic_addr;
+/* Processor that is doing the boot up */
+unsigned int boot_cpu_physical_apicid = -1U;
+EXPORT_SYMBOL(boot_cpu_physical_apicid);
+
/*
* Get the LAPIC version
*/