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Commit 60cfce4c authored by Tianyu Lan's avatar Tianyu Lan Committed by Paolo Bonzini
Browse files

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: default avatarLan Tianyu <Tianyu.Lan@microsoft.com>
Acked-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent eb914cfe

arch/x86/hyperv/nested.c

+3 −0
Original line number Diff line number Diff line
@@ -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);

arch/x86/include/asm/trace/hyperv.h

+14 −0
Original line number Diff line number Diff line
@@ -28,6 +28,20 @@ TRACE_EVENT(hyperv_mmu_flush_tlb_others, 
		      __entry->addr, __entry->end)

	);



TRACE_EVENT(hyperv_nested_flush_guest_mapping,

	    TP_PROTO(u64 as, int ret),

	    TP_ARGS(as, ret),



	    TP_STRUCT__entry(

		    __field(u64, as)

		    __field(int, ret)

		    ),

	    TP_fast_assign(__entry->as = as;

			   __entry->ret = ret;

		    ),

	    TP_printk("address space %llx ret %d", __entry->as, __entry->ret)

	);



#endif /* CONFIG_HYPERV */



#undef TRACE_INCLUDE_PATH