Commit 33c7d061 authored by Johannes Berg's avatar Johannes Berg Committed by Richard Weinberger
Browse files

um: expose time-travel mode to userspace side 



This will be necessary in the userspace side to fix the
signal/interrupt handling in time-travel=ext mode, which
is the next patch.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent fbb42e7f

arch/um/include/linux/time-internal.h

+1 −11
Original line number Diff line number Diff line
@@ -8,17 +8,11 @@ 
#define __TIMER_INTERNAL_H__

#include <linux/list.h>

#include <asm/bug.h>

#include <shared/timetravel.h>



#define TIMER_MULTIPLIER 256

#define TIMER_MIN_DELTA  500



enum time_travel_mode {

	TT_MODE_OFF,

	TT_MODE_BASIC,

	TT_MODE_INFCPU,

	TT_MODE_EXTERNAL,

};



#ifdef CONFIG_UML_TIME_TRAVEL_SUPPORT

struct time_travel_event {

	unsigned long long time;
@@ -27,8 +21,6 @@ struct time_travel_event { 
	bool pending, onstack;

};



extern enum time_travel_mode time_travel_mode;



void time_travel_sleep(void);



static inline void
@@ -62,8 +54,6 @@ bool time_travel_del_event(struct time_travel_event *e); 
struct time_travel_event {

};



#define time_travel_mode TT_MODE_OFF



static inline void time_travel_sleep(void)

{

}

arch/um/include/shared/timetravel.h

0 → 100644
+22 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (C) 2019-2021 Intel Corporation

 */

#ifndef _UM_TIME_TRAVEL_H_

#define _UM_TIME_TRAVEL_H_



enum time_travel_mode {

	TT_MODE_OFF,

	TT_MODE_BASIC,

	TT_MODE_INFCPU,

	TT_MODE_EXTERNAL,

};



#if defined(UML_CONFIG_UML_TIME_TRAVEL_SUPPORT) || \

    defined(CONFIG_UML_TIME_TRAVEL_SUPPORT)

extern enum time_travel_mode time_travel_mode;

#else

#define time_travel_mode TT_MODE_OFF

#endif /* (UML_)CONFIG_UML_TIME_TRAVEL_SUPPORT */



#endif /* _UM_TIME_TRAVEL_H_ */