Unverified Commit ed6f512d authored by Shu Hang's avatar Shu Hang Committed by Liu Zhehui
Browse files

HAOC: Add support for x86 Isolated Execution Environment 

community inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/IBQKOW



-------------------------------------------------

Support Isolated Execution Environment for x86.
IEE depends on CR0.wp

Signed-off-by: default avatarShu Hang <shuh2023@zgclab.edu.cn>
Signed-off-by: default avatarHu Bing <&lt;hubing2023@zgclab.edu.cn>
Signed-off-by: default avatarLiu Zhehui <liuzhh@zgclab.edu.cn>
parent 80e5830c

arch/x86/Kconfig

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@@ -1549,6 +1549,9 @@ config AMD_MEM_ENCRYPT 
	  This requires an AMD processor that supports Secure Memory

	  Encryption (SME).



config IEE

	depends on X86_64

	def_bool n

# Common NUMA Features

config NUMA

	bool "NUMA Memory Allocation and Scheduler Support"

arch/x86/include/asm/haoc/haoc-def.h

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/* SPDX-License-Identifier: GPL-2.0 */

/*

 * HAOC feature support

 *

 * Copyright (C) 2025 ZGCLAB

 * Authors: Shu Hang <shuh2023@zgclab.edu.cn>

 *          Hu Bing <hubing2023@zgclab.edu.cn>

 */



#ifndef _LINUX_HAOC_DEF_H

#define _LINUX_HAOC_DEF_H



enum {

	IEE_OP_MEMCPY,

	IEE_OP_MEMSET,

	IEE_OP_SET_FREEPTR,

	IEE_OP_TEST_CLEAR_BIT,

	IEE_FLAG_END

};



#endif

arch/x86/include/asm/haoc/haoc.h

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/* SPDX-License-Identifier: GPL-2.0 */

/*

 * HAOC feature support

 *

 * Copyright (C) 2025 ZGCLAB

 * Authors: Shu Hang <shuh2023@zgclab.edu.cn>

 *          Hu Bing <hubing2023@zgclab.edu.cn>

 */



#ifndef _LINUX_HAOC_H

#define _LINUX_HAOC_H



#include <linux/types.h>



void _iee_memcpy(unsigned long __unused, void *dst, void *src, size_t n);

void _iee_memset(unsigned long __unused, void *ptr, int data, size_t n);

void _iee_set_freeptr(unsigned long __unused, void **pptr, void *ptr);

unsigned long _iee_test_and_clear_bit(unsigned long __unused,

					long nr, unsigned long *addr);

#endif

arch/x86/include/asm/haoc/iee-access.h

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/* SPDX-License-Identifier: GPL-2.0 */

/*

 * HAOC feature support

 *

 * Copyright (C) 2025 ZGCLAB

 * Authors: Shu Hang <shuh2023@zgclab.edu.cn>

 *          Hu Bing <hubing2023@zgclab.edu.cn>

 */



#ifndef _LINUX_IEE_ACCESS_H

#define _LINUX_IEE_ACCESS_H



#include <asm/haoc/haoc-def.h>



extern unsigned long long iee_rw_gate(int flag, ...);



static inline void iee_memcpy(void *dst, const void *src, size_t n)

{

	iee_rw_gate(IEE_OP_MEMCPY, dst, src, n);

}



static inline void iee_memset(void *ptr, int data, size_t n)

{

	iee_rw_gate(IEE_OP_MEMSET, ptr, data, n);

}



static inline void iee_set_freeptr(void **pptr, void *ptr)

{

	iee_rw_gate(IEE_OP_SET_FREEPTR, pptr, ptr);

}



static inline unsigned long iee_test_and_clear_bit(long nr, unsigned long *addr)

{

	return iee_rw_gate(IEE_OP_TEST_CLEAR_BIT, nr, addr);

}



#endif

arch/x86/include/asm/haoc/iee-func.h

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/* SPDX-License-Identifier: GPL-2.0 */

/*

 * HAOC feature support

 *

 * Copyright (C) 2025 ZGCLAB

 * Authors: Shu Hang <shuh2023@zgclab.edu.cn>

 *          Hu Bing <hubing2023@zgclab.edu.cn>

 */



#ifndef _LINUX_IEE_FUNC_H

#define _LINUX_IEE_FUNC_H



extern void set_iee_page(unsigned long addr, unsigned int order);

extern void unset_iee_page(unsigned long addr, unsigned int order);



#endif  /* _LINUX_IEE_FUNC_H */