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authorBrijesh Singh <brijesh.singh@amd.com>2021-04-27 06:16:34 -0500
committerBorislav Petkov <bp@suse.de>2021-05-10 07:40:27 +0200
commite759959fe3b8313c81d6200be44cb8a644d845ea (patch)
tree23b677bdd26ba8fa1678f1594b1adfd39b2bb4a6 /arch/x86/include/asm/sev-es.h
parent6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff)
downloadlinux-e759959fe3b8313c81d6200be44cb8a644d845ea.tar.gz
x86/sev-es: Rename sev-es.{ch} to sev.{ch}
SEV-SNP builds upon the SEV-ES functionality while adding new hardware
protection. Version 2 of the GHCB specification adds new NAE events that
are SEV-SNP specific. Rename the sev-es.{ch} to sev.{ch} so that all
SEV* functionality can be consolidated in one place.

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lkml.kernel.org/r/20210427111636.1207-2-brijesh.singh@amd.com
Diffstat (limited to 'arch/x86/include/asm/sev-es.h')
-rw-r--r--arch/x86/include/asm/sev-es.h114
1 files changed, 0 insertions, 114 deletions
diff --git a/arch/x86/include/asm/sev-es.h b/arch/x86/include/asm/sev-es.h
deleted file mode 100644
index cf1d957c7091..000000000000
--- a/arch/x86/include/asm/sev-es.h
+++ /dev/null
@@ -1,114 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * AMD Encrypted Register State Support
- *
- * Author: Joerg Roedel <jroedel@suse.de>
- */
-
-#ifndef __ASM_ENCRYPTED_STATE_H
-#define __ASM_ENCRYPTED_STATE_H
-
-#include <linux/types.h>
-#include <asm/insn.h>
-
-#define GHCB_SEV_INFO		0x001UL
-#define GHCB_SEV_INFO_REQ	0x002UL
-#define		GHCB_INFO(v)		((v) & 0xfffUL)
-#define		GHCB_PROTO_MAX(v)	(((v) >> 48) & 0xffffUL)
-#define		GHCB_PROTO_MIN(v)	(((v) >> 32) & 0xffffUL)
-#define		GHCB_PROTO_OUR		0x0001UL
-#define GHCB_SEV_CPUID_REQ	0x004UL
-#define		GHCB_CPUID_REQ_EAX	0
-#define		GHCB_CPUID_REQ_EBX	1
-#define		GHCB_CPUID_REQ_ECX	2
-#define		GHCB_CPUID_REQ_EDX	3
-#define		GHCB_CPUID_REQ(fn, reg) (GHCB_SEV_CPUID_REQ | \
-					(((unsigned long)reg & 3) << 30) | \
-					(((unsigned long)fn) << 32))
-
-#define	GHCB_PROTOCOL_MAX	0x0001UL
-#define GHCB_DEFAULT_USAGE	0x0000UL
-
-#define GHCB_SEV_CPUID_RESP	0x005UL
-#define GHCB_SEV_TERMINATE	0x100UL
-#define		GHCB_SEV_TERMINATE_REASON(reason_set, reason_val)	\
-			(((((u64)reason_set) &  0x7) << 12) |		\
-			 ((((u64)reason_val) & 0xff) << 16))
-#define		GHCB_SEV_ES_REASON_GENERAL_REQUEST	0
-#define		GHCB_SEV_ES_REASON_PROTOCOL_UNSUPPORTED	1
-
-#define	GHCB_SEV_GHCB_RESP_CODE(v)	((v) & 0xfff)
-#define	VMGEXIT()			{ asm volatile("rep; vmmcall\n\r"); }
-
-enum es_result {
-	ES_OK,			/* All good */
-	ES_UNSUPPORTED,		/* Requested operation not supported */
-	ES_VMM_ERROR,		/* Unexpected state from the VMM */
-	ES_DECODE_FAILED,	/* Instruction decoding failed */
-	ES_EXCEPTION,		/* Instruction caused exception */
-	ES_RETRY,		/* Retry instruction emulation */
-};
-
-struct es_fault_info {
-	unsigned long vector;
-	unsigned long error_code;
-	unsigned long cr2;
-};
-
-struct pt_regs;
-
-/* ES instruction emulation context */
-struct es_em_ctxt {
-	struct pt_regs *regs;
-	struct insn insn;
-	struct es_fault_info fi;
-};
-
-void do_vc_no_ghcb(struct pt_regs *regs, unsigned long exit_code);
-
-static inline u64 lower_bits(u64 val, unsigned int bits)
-{
-	u64 mask = (1ULL << bits) - 1;
-
-	return (val & mask);
-}
-
-struct real_mode_header;
-enum stack_type;
-
-/* Early IDT entry points for #VC handler */
-extern void vc_no_ghcb(void);
-extern void vc_boot_ghcb(void);
-extern bool handle_vc_boot_ghcb(struct pt_regs *regs);
-
-#ifdef CONFIG_AMD_MEM_ENCRYPT
-extern struct static_key_false sev_es_enable_key;
-extern void __sev_es_ist_enter(struct pt_regs *regs);
-extern void __sev_es_ist_exit(void);
-static __always_inline void sev_es_ist_enter(struct pt_regs *regs)
-{
-	if (static_branch_unlikely(&sev_es_enable_key))
-		__sev_es_ist_enter(regs);
-}
-static __always_inline void sev_es_ist_exit(void)
-{
-	if (static_branch_unlikely(&sev_es_enable_key))
-		__sev_es_ist_exit();
-}
-extern int sev_es_setup_ap_jump_table(struct real_mode_header *rmh);
-extern void __sev_es_nmi_complete(void);
-static __always_inline void sev_es_nmi_complete(void)
-{
-	if (static_branch_unlikely(&sev_es_enable_key))
-		__sev_es_nmi_complete();
-}
-extern int __init sev_es_efi_map_ghcbs(pgd_t *pgd);
-#else
-static inline void sev_es_ist_enter(struct pt_regs *regs) { }
-static inline void sev_es_ist_exit(void) { }
-static inline int sev_es_setup_ap_jump_table(struct real_mode_header *rmh) { return 0; }
-static inline void sev_es_nmi_complete(void) { }
-static inline int sev_es_efi_map_ghcbs(pgd_t *pgd) { return 0; }
-#endif
-
-#endif