arm64: perf: Count EL2 events if the kernel is running in HYP

[linux-2.6-block.git] / arch / arm64 / kernel / perf_event.c

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index f7ab14c4d5df2c6cb9d754299292409465602259..1b52269ffa87e00a6a6541ff5b56d573c51e60ef 100644 (file)
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -20,6 +20,7 @@
  */
 
 #include <asm/irq_regs.h>
+#include <asm/virt.h>
 
 #include <linux/of.h>
 #include <linux/perf/arm_pmu.h>
@@ -691,9 +692,12 @@ static int armv8pmu_set_event_filter(struct hw_perf_event *event,
 
        if (attr->exclude_idle)
                return -EPERM;
+       if (is_kernel_in_hyp_mode() &&
+           attr->exclude_kernel != attr->exclude_hv)
+               return -EINVAL;
        if (attr->exclude_user)
                config_base |= ARMV8_EXCLUDE_EL0;
-       if (attr->exclude_kernel)
+       if (!is_kernel_in_hyp_mode() && attr->exclude_kernel)
                config_base |= ARMV8_EXCLUDE_EL1;
        if (!attr->exclude_hv)
                config_base |= ARMV8_INCLUDE_EL2;