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authorTianyu Lan <Tianyu.Lan@microsoft.com>2018-07-19 11:40:12 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2018-08-06 18:59:05 +0300
commit60cfce4c4f6f6741882032ee6f895e835533a16b (patch)
treed3bb79673ab196b8dc071eb6f9e449918cd86753 /arch/x86/hyperv/nested.c
parenteb914cfe72f4c948b2318b1381f6d2e08d43b63c (diff)
downloadlinux-60cfce4c4f6f6741882032ee6f895e835533a16b.tar.xz
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>
Diffstat (limited to 'arch/x86/hyperv/nested.c')
-rw-r--r--arch/x86/hyperv/nested.c3
1 files changed, 3 insertions, 0 deletions
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);