From 60cfce4c4f6f6741882032ee6f895e835533a16b Mon Sep 17 00:00:00 2001
From: Tianyu Lan <Tianyu.Lan@microsoft.com>
Date: Thu, 19 Jul 2018 08:40:12 +0000
Subject: X86/Hyper-V: Add hyperv_nested_flush_guest_mapping ftrace support

This patch is to add hyperv_nested_flush_guest_mapping support to trace
hvFlushGuestPhysicalAddressSpace hypercall.

Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/hyperv/nested.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch/x86/hyperv')

diff --git a/arch/x86/hyperv/nested.c b/arch/x86/hyperv/nested.c
index 08f914217518..b8e60cc50461 100644
--- a/arch/x86/hyperv/nested.c
+++ b/arch/x86/hyperv/nested.c
@@ -14,6 +14,8 @@
 #include <asm/mshyperv.h>
 #include <asm/tlbflush.h>
 
+#include <asm/trace/hyperv.h>
+
 int hyperv_flush_guest_mapping(u64 as)
 {
 	struct hv_guest_mapping_flush **flush_pcpu;
@@ -48,6 +50,7 @@ int hyperv_flush_guest_mapping(u64 as)
 		ret = 0;
 
 fault:
+	trace_hyperv_nested_flush_guest_mapping(as, ret);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(hyperv_flush_guest_mapping);
-- 
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