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-rw-r--r--kernel/up.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/up.c b/kernel/up.c
index 1760bf3d1463..ee81ac9af4ca 100644
--- a/kernel/up.c
+++ b/kernel/up.c
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/smp.h>
+#include <linux/hypervisor.h>
int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
int wait)
@@ -82,3 +83,20 @@ void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
preempt_enable();
}
EXPORT_SYMBOL(on_each_cpu_cond);
+
+int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, bool phys)
+{
+ int ret;
+
+ if (cpu != 0)
+ return -ENXIO;
+
+ if (phys)
+ hypervisor_pin_vcpu(0);
+ ret = func(par);
+ if (phys)
+ hypervisor_pin_vcpu(-1);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(smp_call_on_cpu);