[linux-2.6-block.git] / arch / powerpc / include / asm / svm.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * SVM helper functions
 *
 * Copyright 2018 Anshuman Khandual, IBM Corporation.
 */

#ifndef _ASM_POWERPC_SVM_H
#define _ASM_POWERPC_SVM_H

#ifdef CONFIG_PPC_SVM

static inline bool is_secure_guest(void)
{
	return mfmsr() & MSR_S;
}

void dtl_cache_ctor(void *addr);
#define get_dtl_cache_ctor()	(is_secure_guest() ? dtl_cache_ctor : NULL)

#else /* CONFIG_PPC_SVM */

static inline bool is_secure_guest(void)
{
	return false;
}

#define get_dtl_cache_ctor() NULL

#endif /* CONFIG_PPC_SVM */
#endif /* _ASM_POWERPC_SVM_H */
Commit	Line	Data
bd104e6d AK	1	/* SPDX-License-Identifier: GPL-2.0+ */
	2	/*
	3	* SVM helper functions
	4	*
	5	* Copyright 2018 Anshuman Khandual, IBM Corporation.
	6	*/
	7
	8	#ifndef _ASM_POWERPC_SVM_H
	9	#define _ASM_POWERPC_SVM_H
	10
	11	#ifdef CONFIG_PPC_SVM
	12
	13	static inline bool is_secure_guest(void)
	14	{
	15	return mfmsr() & MSR_S;
	16	}
	17
d5394c05 AK	18	void dtl_cache_ctor(void *addr);
	19	#define get_dtl_cache_ctor() (is_secure_guest() ? dtl_cache_ctor : NULL)
	20
bd104e6d AK	21	#else /* CONFIG_PPC_SVM */
	22
	23	static inline bool is_secure_guest(void)
	24	{
	25	return false;
	26	}
	27
d5394c05 AK	28	#define get_dtl_cache_ctor() NULL
d5394c05 AK	29
bd104e6d AK	30	#endif /* CONFIG_PPC_SVM */
bd104e6d AK	31	#endif /* _ASM_POWERPC_SVM_H */