[PATCH] Revert "perf: Require exclude_guest to use PEBS - kernelside enforcement"

From: Ingo Molnar
Date: Thu Dec 13 2012 - 02:41:40 EST


This reverts commit 20b279ddb38ca42f8863cec07b4d45ec24589f13.

Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/kernel/cpu/perf_event.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 4428fd1..6774c17 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -340,9 +340,6 @@ int x86_setup_perfctr(struct perf_event *event)
/* BTS is currently only allowed for user-mode. */
if (!attr->exclude_kernel)
return -EOPNOTSUPP;
-
- if (!attr->exclude_guest)
- return -EOPNOTSUPP;
}

hwc->config |= config;
@@ -385,9 +382,6 @@ int x86_pmu_hw_config(struct perf_event *event)
if (event->attr.precise_ip) {
int precise = 0;

- if (!event->attr.exclude_guest)
- return -EOPNOTSUPP;
-
/* Support for constant skid */
if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
precise++;
--
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