Release 4.14 arch/x86/include/asm/mem_encrypt.h
/*
* AMD Memory Encryption Support
*
* Copyright (C) 2016 Advanced Micro Devices, Inc.
*
* Author: Tom Lendacky <thomas.lendacky@amd.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __X86_MEM_ENCRYPT_H__
#define __X86_MEM_ENCRYPT_H__
#ifndef __ASSEMBLY__
#include <linux/init.h>
#include <asm/bootparam.h>
#ifdef CONFIG_AMD_MEM_ENCRYPT
extern u64 sme_me_mask;
void sme_encrypt_execute(unsigned long encrypted_kernel_vaddr,
unsigned long decrypted_kernel_vaddr,
unsigned long kernel_len,
unsigned long encryption_wa,
unsigned long encryption_pgd);
void __init sme_early_encrypt(resource_size_t paddr,
unsigned long size);
void __init sme_early_decrypt(resource_size_t paddr,
unsigned long size);
void __init sme_map_bootdata(char *real_mode_data);
void __init sme_unmap_bootdata(char *real_mode_data);
void __init sme_early_init(void);
void __init sme_encrypt_kernel(void);
void __init sme_enable(struct boot_params *bp);
/* Architecture __weak replacement functions */
void __init mem_encrypt_init(void);
void swiotlb_set_mem_attributes(void *vaddr, unsigned long size);
#else /* !CONFIG_AMD_MEM_ENCRYPT */
#define sme_me_mask 0ULL
static inline void __init sme_early_encrypt(resource_size_t paddr,
unsigned long size) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 14 | 100.00% | 1 | 100.00% |
| Total | 14 | 100.00% | 1 | 100.00% |
static inline void __init sme_early_decrypt(resource_size_t paddr,
unsigned long size) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 14 | 100.00% | 1 | 100.00% |
| Total | 14 | 100.00% | 1 | 100.00% |
static inline void __init sme_map_bootdata(char *real_mode_data) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
static inline void __init sme_unmap_bootdata(char *real_mode_data) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
static inline void __init sme_early_init(void) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 9 | 100.00% | 1 | 100.00% |
| Total | 9 | 100.00% | 1 | 100.00% |
static inline void __init sme_encrypt_kernel(void) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 9 | 100.00% | 1 | 100.00% |
| Total | 9 | 100.00% | 1 | 100.00% |
static inline void __init sme_enable(struct boot_params *bp) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 12 | 100.00% | 2 | 100.00% |
| Total | 12 | 100.00% | 2 | 100.00% |
#endif /* CONFIG_AMD_MEM_ENCRYPT */
/*
* The __sme_pa() and __sme_pa_nodebug() macros are meant for use when
* writing to or comparing values from the cr3 register. Having the
* encryption mask set in cr3 enables the PGD entry to be encrypted and
* avoid special case handling of PGD allocations.
*/
#define __sme_pa(x) (__pa(x) | sme_me_mask)
#define __sme_pa_nodebug(x) (__pa_nodebug(x) | sme_me_mask)
#endif /* __ASSEMBLY__ */
#endif /* __X86_MEM_ENCRYPT_H__ */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tom Lendacky | 242 | 99.18% | 8 | 88.89% |
| Borislav Petkov | 2 | 0.82% | 1 | 11.11% |
| Total | 244 | 100.00% | 9 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.