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-rw-r--r--arch/x86/include/asm/mshyperv.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index 406da8d159e3..4d82ad347b75 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -97,6 +97,9 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type)
#define hv_set_synint_state(int_num, val) \
wrmsrl(HV_X64_MSR_SINT0 + int_num, val)
+#define hv_get_crash_ctl(val) \
+ rdmsrl(HV_X64_MSR_CRASH_CTL, val)
+
void hyperv_callback_vector(void);
void hyperv_reenlightenment_vector(void);
#ifdef CONFIG_TRACING