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Commit 9acd6442 authored by K. Y. Srinivasan's avatar K. Y. Srinivasan Committed by Greg Kroah-Hartman
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Drivers: hv: Get rid of the unused global signaling state 



Now that we have implemented a per-connection signaling mechanism, get rid
of the global signaling state. For hosts that don't support per-connection
signaling handle, we have moved the global state to be a per-channel state.

Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a119845f

drivers/hv/hv.c

+0 −24
Original line number Original line Diff line number Diff line
@@ -34,8 +34,6 @@ 
struct hv_context hv_context = {

struct hv_context hv_context = {

	.synic_initialized	= false,

	.synic_initialized	= false,

	.hypercall_page		= NULL,

	.hypercall_page		= NULL,

	.signal_event_param	= NULL,

	.signal_event_buffer	= NULL,

};

};





/*

/*
@@ -170,24 +168,6 @@ int hv_init(void) 




	hv_context.hypercall_page = virtaddr;

	hv_context.hypercall_page = virtaddr;





	/* Setup the global signal event param for the signal event hypercall */

	hv_context.signal_event_buffer =

			kmalloc(sizeof(struct hv_input_signal_event_buffer),

				GFP_KERNEL);

	if (!hv_context.signal_event_buffer)

		goto cleanup;



	hv_context.signal_event_param =

		(struct hv_input_signal_event *)

			(ALIGN((unsigned long)

				  hv_context.signal_event_buffer,

				  HV_HYPERCALL_PARAM_ALIGN));

	hv_context.signal_event_param->connectionid.asu32 = 0;

	hv_context.signal_event_param->connectionid.u.id =

						VMBUS_EVENT_CONNECTION_ID;

	hv_context.signal_event_param->flag_number = 0;

	hv_context.signal_event_param->rsvdz = 0;



	return 0;

	return 0;





cleanup:

cleanup:
@@ -215,10 +195,6 @@ void hv_cleanup(void) 
	/* Reset our OS id */

	/* Reset our OS id */

	wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0);

	wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0);





	kfree(hv_context.signal_event_buffer);

	hv_context.signal_event_buffer = NULL;

	hv_context.signal_event_param = NULL;



	if (hv_context.hypercall_page) {

	if (hv_context.hypercall_page) {

		hypercall_msr.as_uint64 = 0;

		hypercall_msr.as_uint64 = 0;

		wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);

		wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);

drivers/hv/hyperv_vmbus.h

+0 −8
Original line number Original line Diff line number Diff line
@@ -492,14 +492,6 @@ struct hv_context { 




	bool synic_initialized;

	bool synic_initialized;





	/*

	 * This is used as an input param to HvCallSignalEvent hypercall. The

	 * input param is immutable in our usage and must be dynamic mem (vs

	 * stack or global). */

	struct hv_input_signal_event_buffer *signal_event_buffer;

	/* 8-bytes aligned of the buffer above */

	struct hv_input_signal_event *signal_event_param;



	void *synic_message_page[NR_CPUS];

	void *synic_message_page[NR_CPUS];

	void *synic_event_page[NR_CPUS];

	void *synic_event_page[NR_CPUS];

	/*

	/*