tools/perf/util/kvm-stat-arch/arm64_exception_types.h

Source file repositories/reference/linux-study-clean/tools/perf/util/kvm-stat-arch/arm64_exception_types.h

File Facts

System
Linux kernel
Corpus path
tools/perf/util/kvm-stat-arch/arm64_exception_types.h
Extension
.h
Size
3412 bytes
Lines
98
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
#ifndef ARCH_PERF_ARM64_EXCEPTION_TYPES_H
#define ARCH_PERF_ARM64_EXCEPTION_TYPES_H

/* Per asm/virt.h */
#define HVC_STUB_ERR		  0xbadca11

/* Per asm/kvm_asm.h */
#define ARM_EXCEPTION_IRQ		0
#define ARM_EXCEPTION_EL1_SERROR	1
#define ARM_EXCEPTION_TRAP		2
#define ARM_EXCEPTION_IL		3
/* The hyp-stub will return this for any kvm_call_hyp() call */
#define ARM_EXCEPTION_HYP_GONE		HVC_STUB_ERR

#define kvm_arm_exception_type					\
	{ARM_EXCEPTION_IRQ,		"IRQ"		},	\
	{ARM_EXCEPTION_EL1_SERROR,	"SERROR"	},	\
	{ARM_EXCEPTION_TRAP,		"TRAP"		},	\
	{ARM_EXCEPTION_IL,		"ILLEGAL"	},	\
	{ARM_EXCEPTION_HYP_GONE,	"HYP_GONE"	}

/* Per asm/esr.h */
#define ESR_ELx_EC_UNKNOWN	(0x00)
#define ESR_ELx_EC_WFx		(0x01)
/* Unallocated EC: 0x02 */
#define ESR_ELx_EC_CP15_32	(0x03)
#define ESR_ELx_EC_CP15_64	(0x04)
#define ESR_ELx_EC_CP14_MR	(0x05)
#define ESR_ELx_EC_CP14_LS	(0x06)
#define ESR_ELx_EC_FP_ASIMD	(0x07)
#define ESR_ELx_EC_CP10_ID	(0x08)	/* EL2 only */
#define ESR_ELx_EC_PAC		(0x09)	/* EL2 and above */
#define ESR_ELx_EC_OTHER	(0x0A)
/* Unallocated EC: 0x0B */
#define ESR_ELx_EC_CP14_64	(0x0C)
#define ESR_ELx_EC_BTI		(0x0D)
#define ESR_ELx_EC_ILL		(0x0E)
/* Unallocated EC: 0x0F - 0x10 */
#define ESR_ELx_EC_SVC32	(0x11)
#define ESR_ELx_EC_HVC32	(0x12)	/* EL2 only */
#define ESR_ELx_EC_SMC32	(0x13)	/* EL2 and above */
/* Unallocated EC: 0x14 */
#define ESR_ELx_EC_SVC64	(0x15)
#define ESR_ELx_EC_HVC64	(0x16)	/* EL2 and above */
#define ESR_ELx_EC_SMC64	(0x17)	/* EL2 and above */
#define ESR_ELx_EC_SYS64	(0x18)
#define ESR_ELx_EC_SVE		(0x19)
#define ESR_ELx_EC_ERET		(0x1a)	/* EL2 only */
/* Unallocated EC: 0x1B */
#define ESR_ELx_EC_FPAC		(0x1C)	/* EL1 and above */
#define ESR_ELx_EC_SME		(0x1D)
/* Unallocated EC: 0x1E */
#define ESR_ELx_EC_IMP_DEF	(0x1f)	/* EL3 only */
#define ESR_ELx_EC_IABT_LOW	(0x20)
#define ESR_ELx_EC_IABT_CUR	(0x21)
#define ESR_ELx_EC_PC_ALIGN	(0x22)
/* Unallocated EC: 0x23 */
#define ESR_ELx_EC_DABT_LOW	(0x24)
#define ESR_ELx_EC_DABT_CUR	(0x25)
#define ESR_ELx_EC_SP_ALIGN	(0x26)
#define ESR_ELx_EC_MOPS		(0x27)
#define ESR_ELx_EC_FP_EXC32	(0x28)
/* Unallocated EC: 0x29 - 0x2B */
#define ESR_ELx_EC_FP_EXC64	(0x2C)
#define ESR_ELx_EC_GCS		(0x2D)
/* Unallocated EC: 0x2E */
#define ESR_ELx_EC_SERROR	(0x2F)
#define ESR_ELx_EC_BREAKPT_LOW	(0x30)
#define ESR_ELx_EC_BREAKPT_CUR	(0x31)
#define ESR_ELx_EC_SOFTSTP_LOW	(0x32)
#define ESR_ELx_EC_SOFTSTP_CUR	(0x33)
#define ESR_ELx_EC_WATCHPT_LOW	(0x34)
#define ESR_ELx_EC_WATCHPT_CUR	(0x35)
/* Unallocated EC: 0x36 - 0x37 */
#define ESR_ELx_EC_BKPT32	(0x38)
/* Unallocated EC: 0x39 */
#define ESR_ELx_EC_VECTOR32	(0x3A)	/* EL2 only */
/* Unallocated EC: 0x3B */
#define ESR_ELx_EC_BRK64	(0x3C)
/* Unallocated EC: 0x3D - 0x3F */
#define ESR_ELx_EC_MAX		(0x3F)

#define ECN(x) { ESR_ELx_EC_##x, #x }

#define kvm_arm_exception_class \
	ECN(UNKNOWN), ECN(WFx), ECN(CP15_32), ECN(CP15_64), ECN(CP14_MR), \
	ECN(CP14_LS), ECN(FP_ASIMD), ECN(CP10_ID), ECN(PAC), ECN(CP14_64), \
	ECN(SVC64), ECN(HVC64), ECN(SMC64), ECN(SYS64), ECN(SVE), \
	ECN(IMP_DEF), ECN(IABT_LOW), ECN(IABT_CUR), \

Annotation

Implementation Notes