Drivers: hv: vmbus: Define APIs to manipulate the message page
As part of cleaning up architecture specific code, define APIs
to manipulate the message page.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index a58c201..1e75141 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -140,6 +140,9 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type)
#define hv_init_timer(timer, tick) wrmsrl(timer, tick)
#define hv_init_timer_config(config, val) wrmsrl(config, val)
+#define hv_get_simp(val) rdmsrl(HV_X64_MSR_SIMP, val)
+#define hv_set_simp(val) wrmsrl(HV_X64_MSR_SIMP, val)
+
void hyperv_callback_vector(void);
#ifdef CONFIG_TRACING
#define trace_hyperv_callback_vector hyperv_callback_vector