drivers/gpu/drm/i915/gvt/trace.h - linux - Git at Google

 /*
  * Copyright © 2011-2016 Intel Corporation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice (including the next
  * paragraph) shall be included in all copies or substantial portions of the
  * Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  * IN THE SOFTWARE.
  *
  * Authors:
  *    Jike Song <jike.song@intel.com>
  *
  * Contributors:
  *    Zhi Wang <zhi.a.wang@intel.com>
  *
  */

 #if !defined(_GVT_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
 #define _GVT_TRACE_H_

 #include <linux/types.h>
 #include <linux/stringify.h>
 #include <linux/tracepoint.h>
 #include <asm/tsc.h>

 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM gvt

 TRACE_EVENT(spt_alloc,
 	TP_PROTO(int id, void *spt, int type, unsigned long mfn,
 		unsigned long gpt_gfn),

 	TP_ARGS(id, spt, type, mfn, gpt_gfn),

 	TP_STRUCT__entry(
 		__field(int, id)
 		__field(void *, spt)
 		__field(int, type)
 		__field(unsigned long, mfn)
 		__field(unsigned long, gpt_gfn)
 		),

 	TP_fast_assign(
 		__entry->id = id;
 		__entry->spt = spt;
 		__entry->type = type;
 		__entry->mfn = mfn;
 		__entry->gpt_gfn = gpt_gfn;
 	),

 	TP_printk("VM%d [alloc] spt %p type %d mfn 0x%lx gfn 0x%lx\n",
 		__entry->id,
 		__entry->spt,
 		__entry->type,
 		__entry->mfn,
 		__entry->gpt_gfn)
 );

 TRACE_EVENT(spt_free,
 	TP_PROTO(int id, void *spt, int type),

 	TP_ARGS(id, spt, type),

 	TP_STRUCT__entry(
 		__field(int, id)
 		__field(void *, spt)
 		__field(int, type)
 		),

 	TP_fast_assign(
 		__entry->id = id;
 		__entry->spt = spt;
 		__entry->type = type;
 	),

 	TP_printk("VM%u [free] spt %p type %d\n",
 		__entry->id,
 		__entry->spt,
 		__entry->type)
 );

 #define MAX_BUF_LEN 256

 TRACE_EVENT(gma_index,
 	TP_PROTO(const char *prefix, unsigned long gma,
 		unsigned long index),

 	TP_ARGS(prefix, gma, index),

 	TP_STRUCT__entry(
 		__array(char, buf, MAX_BUF_LEN)
 	),

 	TP_fast_assign(
 		snprintf(__entry->buf, MAX_BUF_LEN,
 			"%s gma 0x%lx index 0x%lx\n", prefix, gma, index);
 	),

 	TP_printk("%s", __entry->buf)
 );

 TRACE_EVENT(gma_translate,
 	TP_PROTO(int id, char *type, int ring_id, int root_entry_type,
 		unsigned long gma, unsigned long gpa),

 	TP_ARGS(id, type, ring_id, root_entry_type, gma, gpa),

 	TP_STRUCT__entry(
 		__array(char, buf, MAX_BUF_LEN)
 	),

 	TP_fast_assign(
 		snprintf(__entry->buf, MAX_BUF_LEN,
 			"VM%d %s ring %d root_entry_type %d gma 0x%lx -> gpa 0x%lx\n",
 			id, type, ring_id, root_entry_type, gma, gpa);
 	),

 	TP_printk("%s", __entry->buf)
 );

 TRACE_EVENT(spt_refcount,
 	TP_PROTO(int id, char *action, void *spt, int before, int after),

 	TP_ARGS(id, action, spt, before, after),

 	TP_STRUCT__entry(
 		__array(char, buf, MAX_BUF_LEN)
 	),

 	TP_fast_assign(
 		snprintf(__entry->buf, MAX_BUF_LEN,
 			"VM%d [%s] spt %p before %d -> after %d\n",
 				id, action, spt, before, after);
 	),

 	TP_printk("%s", __entry->buf)
 );

 TRACE_EVENT(spt_change,
 	TP_PROTO(int id, char *action, void *spt, unsigned long gfn,
 		int type),

 	TP_ARGS(id, action, spt, gfn, type),

 	TP_STRUCT__entry(
 		__array(char, buf, MAX_BUF_LEN)
 	),

 	TP_fast_assign(
 		snprintf(__entry->buf, MAX_BUF_LEN,
 			"VM%d [%s] spt %p gfn 0x%lx type %d\n",
 				id, action, spt, gfn, type);
 	),

 	TP_printk("%s", __entry->buf)
 );

 TRACE_EVENT(spt_guest_change,
 	TP_PROTO(int id, const char *tag, void *spt, int type, u64 v,
 		unsigned long index),

 	TP_ARGS(id, tag, spt, type, v, index),

 	TP_STRUCT__entry(
 		__array(char, buf, MAX_BUF_LEN)
 	),

 	TP_fast_assign(
 		snprintf(__entry->buf, MAX_BUF_LEN,
 		"VM%d [%s] spt %p type %d entry 0x%llx index 0x%lx\n",
 			id, tag, spt, type, v, index);
 	),

 	TP_printk("%s", __entry->buf)
 );

 TRACE_EVENT(oos_change,
 	TP_PROTO(int id, const char *tag, int page_id, void *gpt, int type),

 	TP_ARGS(id, tag, page_id, gpt, type),

 	TP_STRUCT__entry(
 		__array(char, buf, MAX_BUF_LEN)
 	),

 	TP_fast_assign(
 		snprintf(__entry->buf, MAX_BUF_LEN,
 		"VM%d [oos %s] page id %d gpt %p type %d\n",
 			id, tag, page_id, gpt, type);
 	),

 	TP_printk("%s", __entry->buf)
 );

 TRACE_EVENT(oos_sync,
 	TP_PROTO(int id, int page_id, void *gpt, int type, u64 v,
 		unsigned long index),

 	TP_ARGS(id, page_id, gpt, type, v, index),

 	TP_STRUCT__entry(
 		__array(char, buf, MAX_BUF_LEN)
 	),

 	TP_fast_assign(
 	snprintf(__entry->buf, MAX_BUF_LEN,
 	"VM%d [oos sync] page id %d gpt %p type %d entry 0x%llx index 0x%lx\n",
 				id, page_id, gpt, type, v, index);
 	),

 	TP_printk("%s", __entry->buf)
 );

 #define GVT_CMD_STR_LEN 40
 TRACE_EVENT(gvt_command,
 	TP_PROTO(u8 vgpu_id, u8 ring_id, u32 ip_gma, u32 *cmd_va,
 		u32 cmd_len,  u32 buf_type, u32 buf_addr_type,
 		void *workload, const char *cmd_name),

 	TP_ARGS(vgpu_id, ring_id, ip_gma, cmd_va, cmd_len, buf_type,
 		buf_addr_type, workload, cmd_name),

 	TP_STRUCT__entry(
 		__field(u8, vgpu_id)
 		__field(u8, ring_id)
 		__field(u32, ip_gma)
 		__field(u32, buf_type)
 		__field(u32, buf_addr_type)
 		__field(u32, cmd_len)
 		__field(void*, workload)
 		__dynamic_array(u32, raw_cmd, cmd_len)
 		__array(char, cmd_name, GVT_CMD_STR_LEN)
 	),

 	TP_fast_assign(
 		__entry->vgpu_id = vgpu_id;
 		__entry->ring_id = ring_id;
 		__entry->ip_gma = ip_gma;
 		__entry->buf_type = buf_type;
 		__entry->buf_addr_type = buf_addr_type;
 		__entry->cmd_len = cmd_len;
 		__entry->workload = workload;
 		snprintf(__entry->cmd_name, GVT_CMD_STR_LEN, "%s", cmd_name);
 		memcpy(__get_dynamic_array(raw_cmd), cmd_va, cmd_len * sizeof(*cmd_va));
 	),


 	TP_printk("vgpu%d ring %d: address_type %u, buf_type %u, ip_gma %08x,cmd (name=%s,len=%u,raw cmd=%s), workload=%p\n",
 		__entry->vgpu_id,
 		__entry->ring_id,
 		__entry->buf_addr_type,
 		__entry->buf_type,
 		__entry->ip_gma,
 		__entry->cmd_name,
 		__entry->cmd_len,
 		__print_array(__get_dynamic_array(raw_cmd),
 			__entry->cmd_len, 4),
 		__entry->workload)
 );

 #define GVT_TEMP_STR_LEN 10
 TRACE_EVENT(write_ir,
 	TP_PROTO(int id, char *reg_name, unsigned int reg, unsigned int new_val,
 		 unsigned int old_val, bool changed),

 	TP_ARGS(id, reg_name, reg, new_val, old_val, changed),

 	TP_STRUCT__entry(
 		__field(int, id)
 		__array(char, buf, GVT_TEMP_STR_LEN)
 		__field(unsigned int, reg)
 		__field(unsigned int, new_val)
 		__field(unsigned int, old_val)
 		__field(bool, changed)
 	),

 	TP_fast_assign(
 		__entry->id = id;
 		snprintf(__entry->buf, GVT_TEMP_STR_LEN, "%s", reg_name);
 		__entry->reg = reg;
 		__entry->new_val = new_val;
 		__entry->old_val = old_val;
 		__entry->changed = changed;
 	),

 	TP_printk("VM%u write [%s] %x, new %08x, old %08x, changed %08x\n",
 		  __entry->id, __entry->buf, __entry->reg, __entry->new_val,
 		  __entry->old_val, __entry->changed)
 );

 TRACE_EVENT(propagate_event,
 	TP_PROTO(int id, const char *irq_name, int bit),

 	TP_ARGS(id, irq_name, bit),

 	TP_STRUCT__entry(
 		__field(int, id)
 		__array(char, buf, GVT_TEMP_STR_LEN)
 		__field(int, bit)
 	),

 	TP_fast_assign(
 		__entry->id = id;
 		snprintf(__entry->buf, GVT_TEMP_STR_LEN, "%s", irq_name);
 		__entry->bit = bit;
 	),

 	TP_printk("Set bit (%d) for (%s) for vgpu (%d)\n",
 		  __entry->bit, __entry->buf, __entry->id)
 );

 TRACE_EVENT(inject_msi,
 	TP_PROTO(int id, unsigned int address, unsigned int data),

 	TP_ARGS(id, address, data),

 	TP_STRUCT__entry(
 		__field(int, id)
 		__field(unsigned int, address)
 		__field(unsigned int, data)
 	),

 	TP_fast_assign(
 		__entry->id = id;
 		__entry->address = address;
 		__entry->data = data;
 	),

 	TP_printk("vgpu%d:inject msi address %x data %x\n",
 		  __entry->id, __entry->address, __entry->data)
 );

 TRACE_EVENT(render_mmio,
 	TP_PROTO(int old_id, int new_id, char *action, unsigned int reg,
 		 unsigned int old_val, unsigned int new_val),

 	TP_ARGS(old_id, new_id, action, reg, old_val, new_val),

 	TP_STRUCT__entry(
 		__field(int, old_id)
 		__field(int, new_id)
 		__array(char, buf, GVT_TEMP_STR_LEN)
 		__field(unsigned int, reg)
 		__field(unsigned int, old_val)
 		__field(unsigned int, new_val)
 	),

 	TP_fast_assign(
 		__entry->old_id = old_id;
 		__entry->new_id = new_id;
 		snprintf(__entry->buf, GVT_TEMP_STR_LEN, "%s", action);
 		__entry->reg = reg;
 		__entry->old_val = old_val;
 		__entry->new_val = new_val;
 	),

 	TP_printk("VM%u -> VM%u %s reg %x, old %08x new %08x\n",
 		  __entry->old_id, __entry->new_id,
 		  __entry->buf, __entry->reg,
 		  __entry->old_val, __entry->new_val)
 );

 #endif /* _GVT_TRACE_H_ */

 /* This part must be out of protection */
 #undef TRACE_INCLUDE_PATH
 #define TRACE_INCLUDE_PATH .
 #undef TRACE_INCLUDE_FILE
 #define TRACE_INCLUDE_FILE trace
 #include <trace/define_trace.h>
	/*
	* Copyright © 2011-2016 Intel Corporation
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice (including the next
	* paragraph) shall be included in all copies or substantial portions of the
	* Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
	* IN THE SOFTWARE.
	*
	* Authors:
	* Jike Song <jike.song@intel.com>
	*
	* Contributors:
	* Zhi Wang <zhi.a.wang@intel.com>
	*
	*/

	#if !defined(_GVT_TRACE_H_) \|\| defined(TRACE_HEADER_MULTI_READ)
	#define _GVT_TRACE_H_

	#include <linux/types.h>
	#include <linux/stringify.h>
	#include <linux/tracepoint.h>
	#include <asm/tsc.h>

	#undef TRACE_SYSTEM
	#define TRACE_SYSTEM gvt

	TRACE_EVENT(spt_alloc,
	TP_PROTO(int id, void *spt, int type, unsigned long mfn,
	unsigned long gpt_gfn),

	TP_ARGS(id, spt, type, mfn, gpt_gfn),

	TP_STRUCT__entry(
	__field(int, id)
	__field(void *, spt)
	__field(int, type)
	__field(unsigned long, mfn)
	__field(unsigned long, gpt_gfn)
	),

	TP_fast_assign(
	__entry->id = id;
	__entry->spt = spt;
	__entry->type = type;
	__entry->mfn = mfn;
	__entry->gpt_gfn = gpt_gfn;
	),

	TP_printk("VM%d [alloc] spt %p type %d mfn 0x%lx gfn 0x%lx\n",
	__entry->id,
	__entry->spt,
	__entry->type,
	__entry->mfn,
	__entry->gpt_gfn)
	);

	TRACE_EVENT(spt_free,
	TP_PROTO(int id, void *spt, int type),

	TP_ARGS(id, spt, type),

	TP_STRUCT__entry(
	__field(int, id)
	__field(void *, spt)
	__field(int, type)
	),

	TP_fast_assign(
	__entry->id = id;
	__entry->spt = spt;
	__entry->type = type;
	),

	TP_printk("VM%u [free] spt %p type %d\n",
	__entry->id,
	__entry->spt,
	__entry->type)
	);

	#define MAX_BUF_LEN 256

	TRACE_EVENT(gma_index,
	TP_PROTO(const char *prefix, unsigned long gma,
	unsigned long index),

	TP_ARGS(prefix, gma, index),

	TP_STRUCT__entry(
	__array(char, buf, MAX_BUF_LEN)
	),

	TP_fast_assign(
	snprintf(__entry->buf, MAX_BUF_LEN,
	"%s gma 0x%lx index 0x%lx\n", prefix, gma, index);
	),

	TP_printk("%s", __entry->buf)
	);

	TRACE_EVENT(gma_translate,
	TP_PROTO(int id, char *type, int ring_id, int root_entry_type,
	unsigned long gma, unsigned long gpa),

	TP_ARGS(id, type, ring_id, root_entry_type, gma, gpa),

	TP_STRUCT__entry(
	__array(char, buf, MAX_BUF_LEN)
	),

	TP_fast_assign(
	snprintf(__entry->buf, MAX_BUF_LEN,
	"VM%d %s ring %d root_entry_type %d gma 0x%lx -> gpa 0x%lx\n",
	id, type, ring_id, root_entry_type, gma, gpa);
	),

	TP_printk("%s", __entry->buf)
	);

	TRACE_EVENT(spt_refcount,
	TP_PROTO(int id, char action, void spt, int before, int after),

	TP_ARGS(id, action, spt, before, after),

	TP_STRUCT__entry(
	__array(char, buf, MAX_BUF_LEN)
	),

	TP_fast_assign(
	snprintf(__entry->buf, MAX_BUF_LEN,
	"VM%d [%s] spt %p before %d -> after %d\n",
	id, action, spt, before, after);
	),

	TP_printk("%s", __entry->buf)
	);

	TRACE_EVENT(spt_change,
	TP_PROTO(int id, char action, void spt, unsigned long gfn,
	int type),

	TP_ARGS(id, action, spt, gfn, type),

	TP_STRUCT__entry(
	__array(char, buf, MAX_BUF_LEN)
	),

	TP_fast_assign(
	snprintf(__entry->buf, MAX_BUF_LEN,
	"VM%d [%s] spt %p gfn 0x%lx type %d\n",
	id, action, spt, gfn, type);
	),

	TP_printk("%s", __entry->buf)
	);

	TRACE_EVENT(spt_guest_change,
	TP_PROTO(int id, const char tag, void spt, int type, u64 v,
	unsigned long index),

	TP_ARGS(id, tag, spt, type, v, index),

	TP_STRUCT__entry(
	__array(char, buf, MAX_BUF_LEN)
	),

	TP_fast_assign(
	snprintf(__entry->buf, MAX_BUF_LEN,
	"VM%d [%s] spt %p type %d entry 0x%llx index 0x%lx\n",
	id, tag, spt, type, v, index);
	),

	TP_printk("%s", __entry->buf)
	);

	TRACE_EVENT(oos_change,
	TP_PROTO(int id, const char tag, int page_id, void gpt, int type),

	TP_ARGS(id, tag, page_id, gpt, type),

	TP_STRUCT__entry(
	__array(char, buf, MAX_BUF_LEN)
	),

	TP_fast_assign(
	snprintf(__entry->buf, MAX_BUF_LEN,
	"VM%d [oos %s] page id %d gpt %p type %d\n",
	id, tag, page_id, gpt, type);
	),

	TP_printk("%s", __entry->buf)
	);

	TRACE_EVENT(oos_sync,
	TP_PROTO(int id, int page_id, void *gpt, int type, u64 v,
	unsigned long index),

	TP_ARGS(id, page_id, gpt, type, v, index),

	TP_STRUCT__entry(
	__array(char, buf, MAX_BUF_LEN)
	),

	TP_fast_assign(
	snprintf(__entry->buf, MAX_BUF_LEN,
	"VM%d [oos sync] page id %d gpt %p type %d entry 0x%llx index 0x%lx\n",
	id, page_id, gpt, type, v, index);
	),

	TP_printk("%s", __entry->buf)
	);

	#define GVT_CMD_STR_LEN 40
	TRACE_EVENT(gvt_command,
	TP_PROTO(u8 vgpu_id, u8 ring_id, u32 ip_gma, u32 *cmd_va,
	u32 cmd_len, u32 buf_type, u32 buf_addr_type,
	void workload, const char cmd_name),

	TP_ARGS(vgpu_id, ring_id, ip_gma, cmd_va, cmd_len, buf_type,
	buf_addr_type, workload, cmd_name),

	TP_STRUCT__entry(
	__field(u8, vgpu_id)
	__field(u8, ring_id)
	__field(u32, ip_gma)
	__field(u32, buf_type)
	__field(u32, buf_addr_type)
	__field(u32, cmd_len)
	__field(void*, workload)
	__dynamic_array(u32, raw_cmd, cmd_len)
	__array(char, cmd_name, GVT_CMD_STR_LEN)
	),

	TP_fast_assign(
	__entry->vgpu_id = vgpu_id;
	__entry->ring_id = ring_id;
	__entry->ip_gma = ip_gma;
	__entry->buf_type = buf_type;
	__entry->buf_addr_type = buf_addr_type;
	__entry->cmd_len = cmd_len;
	__entry->workload = workload;
	snprintf(__entry->cmd_name, GVT_CMD_STR_LEN, "%s", cmd_name);
	memcpy(__get_dynamic_array(raw_cmd), cmd_va, cmd_len * sizeof(*cmd_va));
	),


	TP_printk("vgpu%d ring %d: address_type %u, buf_type %u, ip_gma %08x,cmd (name=%s,len=%u,raw cmd=%s), workload=%p\n",
	__entry->vgpu_id,
	__entry->ring_id,
	__entry->buf_addr_type,
	__entry->buf_type,
	__entry->ip_gma,
	__entry->cmd_name,
	__entry->cmd_len,
	__print_array(__get_dynamic_array(raw_cmd),
	__entry->cmd_len, 4),
	__entry->workload)
	);

	#define GVT_TEMP_STR_LEN 10
	TRACE_EVENT(write_ir,
	TP_PROTO(int id, char *reg_name, unsigned int reg, unsigned int new_val,
	unsigned int old_val, bool changed),

	TP_ARGS(id, reg_name, reg, new_val, old_val, changed),

	TP_STRUCT__entry(
	__field(int, id)
	__array(char, buf, GVT_TEMP_STR_LEN)
	__field(unsigned int, reg)
	__field(unsigned int, new_val)
	__field(unsigned int, old_val)
	__field(bool, changed)
	),

	TP_fast_assign(
	__entry->id = id;
	snprintf(__entry->buf, GVT_TEMP_STR_LEN, "%s", reg_name);
	__entry->reg = reg;
	__entry->new_val = new_val;
	__entry->old_val = old_val;
	__entry->changed = changed;
	),

	TP_printk("VM%u write [%s] %x, new %08x, old %08x, changed %08x\n",
	__entry->id, __entry->buf, __entry->reg, __entry->new_val,
	__entry->old_val, __entry->changed)
	);

	TRACE_EVENT(propagate_event,
	TP_PROTO(int id, const char *irq_name, int bit),

	TP_ARGS(id, irq_name, bit),

	TP_STRUCT__entry(
	__field(int, id)
	__array(char, buf, GVT_TEMP_STR_LEN)
	__field(int, bit)
	),

	TP_fast_assign(
	__entry->id = id;
	snprintf(__entry->buf, GVT_TEMP_STR_LEN, "%s", irq_name);
	__entry->bit = bit;
	),

	TP_printk("Set bit (%d) for (%s) for vgpu (%d)\n",
	__entry->bit, __entry->buf, __entry->id)
	);

	TRACE_EVENT(inject_msi,
	TP_PROTO(int id, unsigned int address, unsigned int data),

	TP_ARGS(id, address, data),

	TP_STRUCT__entry(
	__field(int, id)
	__field(unsigned int, address)
	__field(unsigned int, data)
	),

	TP_fast_assign(
	__entry->id = id;
	__entry->address = address;
	__entry->data = data;
	),

	TP_printk("vgpu%d:inject msi address %x data %x\n",
	__entry->id, __entry->address, __entry->data)
	);

	TRACE_EVENT(render_mmio,
	TP_PROTO(int old_id, int new_id, char *action, unsigned int reg,
	unsigned int old_val, unsigned int new_val),

	TP_ARGS(old_id, new_id, action, reg, old_val, new_val),

	TP_STRUCT__entry(
	__field(int, old_id)
	__field(int, new_id)
	__array(char, buf, GVT_TEMP_STR_LEN)
	__field(unsigned int, reg)
	__field(unsigned int, old_val)
	__field(unsigned int, new_val)
	),

	TP_fast_assign(
	__entry->old_id = old_id;
	__entry->new_id = new_id;
	snprintf(__entry->buf, GVT_TEMP_STR_LEN, "%s", action);
	__entry->reg = reg;
	__entry->old_val = old_val;
	__entry->new_val = new_val;
	),

	TP_printk("VM%u -> VM%u %s reg %x, old %08x new %08x\n",
	__entry->old_id, __entry->new_id,
	__entry->buf, __entry->reg,
	__entry->old_val, __entry->new_val)
	);

	#endif /* _GVT_TRACE_H_ */

	/* This part must be out of protection */
	#undef TRACE_INCLUDE_PATH
	#define TRACE_INCLUDE_PATH .
	#undef TRACE_INCLUDE_FILE
	#define TRACE_INCLUDE_FILE trace
	#include <trace/define_trace.h>