Merge tag 'kvmarm-6.13' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 changes for 6.13, part #1

 - Support for stage-1 permission indirection (FEAT_S1PIE) and
   permission overlays (FEAT_S1POE), including nested virt + the
   emulated page table walker

 - Introduce PSCI SYSTEM_OFF2 support to KVM + client driver. This call
   was introduced in PSCIv1.3 as a mechanism to request hibernation,
   similar to the S4 state in ACPI

 - Explicitly trap + hide FEAT_MPAM (QoS controls) from KVM guests. As
   part of it, introduce trivial initialization of the host's MPAM
   context so KVM can use the corresponding traps

 - PMU support under nested virtualization, honoring the guest
   hypervisor's trap configuration and event filtering when running a
   nested guest

 - Fixes to vgic ITS serialization where stale device/interrupt table
   entries are not zeroed when the mapping is invalidated by the VM

 - Avoid emulated MMIO completion if userspace has requested synchronous
   external abort injection

 - Various fixes and cleanups affecting pKVM, vCPU initialization, and
   selftests

2 files changed, 497 insertions, 0 deletions

diff --git a/tools/arch/arm64/include/asm/brk-imm.h b/tools/arch/arm64/include/asm/brk-imm.h
new file mode 100644
index 000000000000..beb42c62b6ac
--- /dev/null
+++ b/tools/arch/arm64/include/asm/brk-imm.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ */
+
+#ifndef __ASM_BRK_IMM_H
+#define __ASM_BRK_IMM_H
+
+/*
+ * #imm16 values used for BRK instruction generation
+ * 0x004: for installing kprobes
+ * 0x005: for installing uprobes
+ * 0x006: for kprobe software single-step
+ * 0x007: for kretprobe return
+ * Allowed values for kgdb are 0x400 - 0x7ff
+ * 0x100: for triggering a fault on purpose (reserved)
+ * 0x400: for dynamic BRK instruction
+ * 0x401: for compile time BRK instruction
+ * 0x800: kernel-mode BUG() and WARN() traps
+ * 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff)
+ * 0x55xx: Undefined Behavior Sanitizer traps ('U' << 8)
+ * 0x8xxx: Control-Flow Integrity traps
+ */
+#define KPROBES_BRK_IMM			0x004
+#define UPROBES_BRK_IMM			0x005
+#define KPROBES_BRK_SS_IMM		0x006
+#define KRETPROBES_BRK_IMM		0x007
+#define FAULT_BRK_IMM			0x100
+#define KGDB_DYN_DBG_BRK_IMM		0x400
+#define KGDB_COMPILED_DBG_BRK_IMM	0x401
+#define BUG_BRK_IMM			0x800
+#define KASAN_BRK_IMM			0x900
+#define KASAN_BRK_MASK			0x0ff
+#define UBSAN_BRK_IMM			0x5500
+#define UBSAN_BRK_MASK			0x00ff
+
+#define CFI_BRK_IMM_TARGET		GENMASK(4, 0)
+#define CFI_BRK_IMM_TYPE		GENMASK(9, 5)
+#define CFI_BRK_IMM_BASE		0x8000
+#define CFI_BRK_IMM_MASK		(CFI_BRK_IMM_TARGET | CFI_BRK_IMM_TYPE)
+
+#endif
diff --git a/tools/arch/arm64/include/asm/esr.h b/tools/arch/arm64/include/asm/esr.h
new file mode 100644
index 000000000000..bd592ca81571
--- /dev/null
+++ b/tools/arch/arm64/include/asm/esr.h
@@ -0,0 +1,455 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2013 - ARM Ltd
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ */
+
+#ifndef __ASM_ESR_H
+#define __ASM_ESR_H
+
+#include <asm/sysreg.h>
+
+#define ESR_ELx_EC_UNKNOWN	UL(0x00)
+#define ESR_ELx_EC_WFx		UL(0x01)
+/* Unallocated EC: 0x02 */
+#define ESR_ELx_EC_CP15_32	UL(0x03)
+#define ESR_ELx_EC_CP15_64	UL(0x04)
+#define ESR_ELx_EC_CP14_MR	UL(0x05)
+#define ESR_ELx_EC_CP14_LS	UL(0x06)
+#define ESR_ELx_EC_FP_ASIMD	UL(0x07)
+#define ESR_ELx_EC_CP10_ID	UL(0x08)	/* EL2 only */
+#define ESR_ELx_EC_PAC		UL(0x09)	/* EL2 and above */
+/* Unallocated EC: 0x0A - 0x0B */
+#define ESR_ELx_EC_CP14_64	UL(0x0C)
+#define ESR_ELx_EC_BTI		UL(0x0D)
+#define ESR_ELx_EC_ILL		UL(0x0E)
+/* Unallocated EC: 0x0F - 0x10 */
+#define ESR_ELx_EC_SVC32	UL(0x11)
+#define ESR_ELx_EC_HVC32	UL(0x12)	/* EL2 only */
+#define ESR_ELx_EC_SMC32	UL(0x13)	/* EL2 and above */
+/* Unallocated EC: 0x14 */
+#define ESR_ELx_EC_SVC64	UL(0x15)
+#define ESR_ELx_EC_HVC64	UL(0x16)	/* EL2 and above */
+#define ESR_ELx_EC_SMC64	UL(0x17)	/* EL2 and above */
+#define ESR_ELx_EC_SYS64	UL(0x18)
+#define ESR_ELx_EC_SVE		UL(0x19)
+#define ESR_ELx_EC_ERET		UL(0x1a)	/* EL2 only */
+/* Unallocated EC: 0x1B */
+#define ESR_ELx_EC_FPAC		UL(0x1C)	/* EL1 and above */
+#define ESR_ELx_EC_SME		UL(0x1D)
+/* Unallocated EC: 0x1E */
+#define ESR_ELx_EC_IMP_DEF	UL(0x1f)	/* EL3 only */
+#define ESR_ELx_EC_IABT_LOW	UL(0x20)
+#define ESR_ELx_EC_IABT_CUR	UL(0x21)
+#define ESR_ELx_EC_PC_ALIGN	UL(0x22)
+/* Unallocated EC: 0x23 */
+#define ESR_ELx_EC_DABT_LOW	UL(0x24)
+#define ESR_ELx_EC_DABT_CUR	UL(0x25)
+#define ESR_ELx_EC_SP_ALIGN	UL(0x26)
+#define ESR_ELx_EC_MOPS		UL(0x27)
+#define ESR_ELx_EC_FP_EXC32	UL(0x28)
+/* Unallocated EC: 0x29 - 0x2B */
+#define ESR_ELx_EC_FP_EXC64	UL(0x2C)
+/* Unallocated EC: 0x2D - 0x2E */
+#define ESR_ELx_EC_SERROR	UL(0x2F)
+#define ESR_ELx_EC_BREAKPT_LOW	UL(0x30)
+#define ESR_ELx_EC_BREAKPT_CUR	UL(0x31)
+#define ESR_ELx_EC_SOFTSTP_LOW	UL(0x32)
+#define ESR_ELx_EC_SOFTSTP_CUR	UL(0x33)
+#define ESR_ELx_EC_WATCHPT_LOW	UL(0x34)
+#define ESR_ELx_EC_WATCHPT_CUR	UL(0x35)
+/* Unallocated EC: 0x36 - 0x37 */
+#define ESR_ELx_EC_BKPT32	UL(0x38)
+/* Unallocated EC: 0x39 */
+#define ESR_ELx_EC_VECTOR32	UL(0x3A)	/* EL2 only */
+/* Unallocated EC: 0x3B */
+#define ESR_ELx_EC_BRK64	UL(0x3C)
+/* Unallocated EC: 0x3D - 0x3F */
+#define ESR_ELx_EC_MAX		UL(0x3F)
+
+#define ESR_ELx_EC_SHIFT	(26)
+#define ESR_ELx_EC_WIDTH	(6)
+#define ESR_ELx_EC_MASK		(UL(0x3F) << ESR_ELx_EC_SHIFT)
+#define ESR_ELx_EC(esr)		(((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
+
+#define ESR_ELx_IL_SHIFT	(25)
+#define ESR_ELx_IL		(UL(1) << ESR_ELx_IL_SHIFT)
+#define ESR_ELx_ISS_MASK	(GENMASK(24, 0))
+#define ESR_ELx_ISS(esr)	((esr) & ESR_ELx_ISS_MASK)
+#define ESR_ELx_ISS2_SHIFT	(32)
+#define ESR_ELx_ISS2_MASK	(GENMASK_ULL(55, 32))
+#define ESR_ELx_ISS2(esr)	(((esr) & ESR_ELx_ISS2_MASK) >> ESR_ELx_ISS2_SHIFT)
+
+/* ISS field definitions shared by different classes */
+#define ESR_ELx_WNR_SHIFT	(6)
+#define ESR_ELx_WNR		(UL(1) << ESR_ELx_WNR_SHIFT)
+
+/* Asynchronous Error Type */
+#define ESR_ELx_IDS_SHIFT	(24)
+#define ESR_ELx_IDS		(UL(1) << ESR_ELx_IDS_SHIFT)
+#define ESR_ELx_AET_SHIFT	(10)
+#define ESR_ELx_AET		(UL(0x7) << ESR_ELx_AET_SHIFT)
+
+#define ESR_ELx_AET_UC		(UL(0) << ESR_ELx_AET_SHIFT)
+#define ESR_ELx_AET_UEU		(UL(1) << ESR_ELx_AET_SHIFT)
+#define ESR_ELx_AET_UEO		(UL(2) << ESR_ELx_AET_SHIFT)
+#define ESR_ELx_AET_UER		(UL(3) << ESR_ELx_AET_SHIFT)
+#define ESR_ELx_AET_CE		(UL(6) << ESR_ELx_AET_SHIFT)
+
+/* Shared ISS field definitions for Data/Instruction aborts */
+#define ESR_ELx_SET_SHIFT	(11)
+#define ESR_ELx_SET_MASK	(UL(3) << ESR_ELx_SET_SHIFT)
+#define ESR_ELx_FnV_SHIFT	(10)
+#define ESR_ELx_FnV		(UL(1) << ESR_ELx_FnV_SHIFT)
+#define ESR_ELx_EA_SHIFT	(9)
+#define ESR_ELx_EA		(UL(1) << ESR_ELx_EA_SHIFT)
+#define ESR_ELx_S1PTW_SHIFT	(7)
+#define ESR_ELx_S1PTW		(UL(1) << ESR_ELx_S1PTW_SHIFT)
+
+/* Shared ISS fault status code(IFSC/DFSC) for Data/Instruction aborts */
+#define ESR_ELx_FSC		(0x3F)
+#define ESR_ELx_FSC_TYPE	(0x3C)
+#define ESR_ELx_FSC_LEVEL	(0x03)
+#define ESR_ELx_FSC_EXTABT	(0x10)
+#define ESR_ELx_FSC_MTE		(0x11)
+#define ESR_ELx_FSC_SERROR	(0x11)
+#define ESR_ELx_FSC_ACCESS	(0x08)
+#define ESR_ELx_FSC_FAULT	(0x04)
+#define ESR_ELx_FSC_PERM	(0x0C)
+#define ESR_ELx_FSC_SEA_TTW(n)	(0x14 + (n))
+#define ESR_ELx_FSC_SECC	(0x18)
+#define ESR_ELx_FSC_SECC_TTW(n)	(0x1c + (n))
+
+/* Status codes for individual page table levels */
+#define ESR_ELx_FSC_ACCESS_L(n)	(ESR_ELx_FSC_ACCESS + (n))
+#define ESR_ELx_FSC_PERM_L(n)	(ESR_ELx_FSC_PERM + (n))
+
+#define ESR_ELx_FSC_FAULT_nL	(0x2C)
+#define ESR_ELx_FSC_FAULT_L(n)	(((n) < 0 ? ESR_ELx_FSC_FAULT_nL : \
+					    ESR_ELx_FSC_FAULT) + (n))
+
+/* ISS field definitions for Data Aborts */
+#define ESR_ELx_ISV_SHIFT	(24)
+#define ESR_ELx_ISV		(UL(1) << ESR_ELx_ISV_SHIFT)
+#define ESR_ELx_SAS_SHIFT	(22)
+#define ESR_ELx_SAS		(UL(3) << ESR_ELx_SAS_SHIFT)
+#define ESR_ELx_SSE_SHIFT	(21)
+#define ESR_ELx_SSE		(UL(1) << ESR_ELx_SSE_SHIFT)
+#define ESR_ELx_SRT_SHIFT	(16)
+#define ESR_ELx_SRT_MASK	(UL(0x1F) << ESR_ELx_SRT_SHIFT)
+#define ESR_ELx_SF_SHIFT	(15)
+#define ESR_ELx_SF 		(UL(1) << ESR_ELx_SF_SHIFT)
+#define ESR_ELx_AR_SHIFT	(14)
+#define ESR_ELx_AR 		(UL(1) << ESR_ELx_AR_SHIFT)
+#define ESR_ELx_CM_SHIFT	(8)
+#define ESR_ELx_CM 		(UL(1) << ESR_ELx_CM_SHIFT)
+
+/* ISS2 field definitions for Data Aborts */
+#define ESR_ELx_TnD_SHIFT	(10)
+#define ESR_ELx_TnD 		(UL(1) << ESR_ELx_TnD_SHIFT)
+#define ESR_ELx_TagAccess_SHIFT	(9)
+#define ESR_ELx_TagAccess	(UL(1) << ESR_ELx_TagAccess_SHIFT)
+#define ESR_ELx_GCS_SHIFT	(8)
+#define ESR_ELx_GCS 		(UL(1) << ESR_ELx_GCS_SHIFT)
+#define ESR_ELx_Overlay_SHIFT	(6)
+#define ESR_ELx_Overlay		(UL(1) << ESR_ELx_Overlay_SHIFT)
+#define ESR_ELx_DirtyBit_SHIFT	(5)
+#define ESR_ELx_DirtyBit	(UL(1) << ESR_ELx_DirtyBit_SHIFT)
+#define ESR_ELx_Xs_SHIFT	(0)
+#define ESR_ELx_Xs_MASK		(GENMASK_ULL(4, 0))
+
+/* ISS field definitions for exceptions taken in to Hyp */
+#define ESR_ELx_FSC_ADDRSZ	(0x00)
+#define ESR_ELx_FSC_ADDRSZ_L(n)	(ESR_ELx_FSC_ADDRSZ + (n))
+#define ESR_ELx_CV		(UL(1) << 24)
+#define ESR_ELx_COND_SHIFT	(20)
+#define ESR_ELx_COND_MASK	(UL(0xF) << ESR_ELx_COND_SHIFT)
+#define ESR_ELx_WFx_ISS_RN	(UL(0x1F) << 5)
+#define ESR_ELx_WFx_ISS_RV	(UL(1) << 2)
+#define ESR_ELx_WFx_ISS_TI	(UL(3) << 0)
+#define ESR_ELx_WFx_ISS_WFxT	(UL(2) << 0)
+#define ESR_ELx_WFx_ISS_WFI	(UL(0) << 0)
+#define ESR_ELx_WFx_ISS_WFE	(UL(1) << 0)
+#define ESR_ELx_xVC_IMM_MASK	((UL(1) << 16) - 1)
+
+#define DISR_EL1_IDS		(UL(1) << 24)
+/*
+ * DISR_EL1 and ESR_ELx share the bottom 13 bits, but the RES0 bits may mean
+ * different things in the future...
+ */
+#define DISR_EL1_ESR_MASK	(ESR_ELx_AET | ESR_ELx_EA | ESR_ELx_FSC)
+
+/* ESR value templates for specific events */
+#define ESR_ELx_WFx_MASK	(ESR_ELx_EC_MASK |			\
+				 (ESR_ELx_WFx_ISS_TI & ~ESR_ELx_WFx_ISS_WFxT))
+#define ESR_ELx_WFx_WFI_VAL	((ESR_ELx_EC_WFx << ESR_ELx_EC_SHIFT) |	\
+				 ESR_ELx_WFx_ISS_WFI)
+
+/* BRK instruction trap from AArch64 state */
+#define ESR_ELx_BRK64_ISS_COMMENT_MASK	0xffff
+
+/* ISS field definitions for System instruction traps */
+#define ESR_ELx_SYS64_ISS_RES0_SHIFT	22
+#define ESR_ELx_SYS64_ISS_RES0_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_RES0_SHIFT)
+#define ESR_ELx_SYS64_ISS_DIR_MASK	0x1
+#define ESR_ELx_SYS64_ISS_DIR_READ	0x1
+#define ESR_ELx_SYS64_ISS_DIR_WRITE	0x0
+
+#define ESR_ELx_SYS64_ISS_RT_SHIFT	5
+#define ESR_ELx_SYS64_ISS_RT_MASK	(UL(0x1f) << ESR_ELx_SYS64_ISS_RT_SHIFT)
+#define ESR_ELx_SYS64_ISS_CRM_SHIFT	1
+#define ESR_ELx_SYS64_ISS_CRM_MASK	(UL(0xf) << ESR_ELx_SYS64_ISS_CRM_SHIFT)
+#define ESR_ELx_SYS64_ISS_CRN_SHIFT	10
+#define ESR_ELx_SYS64_ISS_CRN_MASK	(UL(0xf) << ESR_ELx_SYS64_ISS_CRN_SHIFT)
+#define ESR_ELx_SYS64_ISS_OP1_SHIFT	14
+#define ESR_ELx_SYS64_ISS_OP1_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_OP1_SHIFT)
+#define ESR_ELx_SYS64_ISS_OP2_SHIFT	17
+#define ESR_ELx_SYS64_ISS_OP2_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_OP2_SHIFT)
+#define ESR_ELx_SYS64_ISS_OP0_SHIFT	20
+#define ESR_ELx_SYS64_ISS_OP0_MASK	(UL(0x3) << ESR_ELx_SYS64_ISS_OP0_SHIFT)
+#define ESR_ELx_SYS64_ISS_SYS_MASK	(ESR_ELx_SYS64_ISS_OP0_MASK | \
+					 ESR_ELx_SYS64_ISS_OP1_MASK | \
+					 ESR_ELx_SYS64_ISS_OP2_MASK | \
+					 ESR_ELx_SYS64_ISS_CRN_MASK | \
+					 ESR_ELx_SYS64_ISS_CRM_MASK)
+#define ESR_ELx_SYS64_ISS_SYS_VAL(op0, op1, op2, crn, crm) \
+					(((op0) << ESR_ELx_SYS64_ISS_OP0_SHIFT) | \
+					 ((op1) << ESR_ELx_SYS64_ISS_OP1_SHIFT) | \
+					 ((op2) << ESR_ELx_SYS64_ISS_OP2_SHIFT) | \
+					 ((crn) << ESR_ELx_SYS64_ISS_CRN_SHIFT) | \
+					 ((crm) << ESR_ELx_SYS64_ISS_CRM_SHIFT))
+
+#define ESR_ELx_SYS64_ISS_SYS_OP_MASK	(ESR_ELx_SYS64_ISS_SYS_MASK | \
+					 ESR_ELx_SYS64_ISS_DIR_MASK)
+#define ESR_ELx_SYS64_ISS_RT(esr) \
+	(((esr) & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT)
+/*
+ * User space cache operations have the following sysreg encoding
+ * in System instructions.
+ * op0=1, op1=3, op2=1, crn=7, crm={ 5, 10, 11, 12, 13, 14 }, WRITE (L=0)
+ */
+#define ESR_ELx_SYS64_ISS_CRM_DC_CIVAC	14
+#define ESR_ELx_SYS64_ISS_CRM_DC_CVADP	13
+#define ESR_ELx_SYS64_ISS_CRM_DC_CVAP	12
+#define ESR_ELx_SYS64_ISS_CRM_DC_CVAU	11
+#define ESR_ELx_SYS64_ISS_CRM_DC_CVAC	10
+#define ESR_ELx_SYS64_ISS_CRM_IC_IVAU	5
+
+#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_MASK	(ESR_ELx_SYS64_ISS_OP0_MASK | \
+						 ESR_ELx_SYS64_ISS_OP1_MASK | \
+						 ESR_ELx_SYS64_ISS_OP2_MASK | \
+						 ESR_ELx_SYS64_ISS_CRN_MASK | \
+						 ESR_ELx_SYS64_ISS_DIR_MASK)
+#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_VAL \
+				(ESR_ELx_SYS64_ISS_SYS_VAL(1, 3, 1, 7, 0) | \
+				 ESR_ELx_SYS64_ISS_DIR_WRITE)
+/*
+ * User space MRS operations which are supported for emulation
+ * have the following sysreg encoding in System instructions.
+ * op0 = 3, op1= 0, crn = 0, {crm = 0, 4-7}, READ (L = 1)
+ */
+#define ESR_ELx_SYS64_ISS_SYS_MRS_OP_MASK	(ESR_ELx_SYS64_ISS_OP0_MASK | \
+						 ESR_ELx_SYS64_ISS_OP1_MASK | \
+						 ESR_ELx_SYS64_ISS_CRN_MASK | \
+						 ESR_ELx_SYS64_ISS_DIR_MASK)
+#define ESR_ELx_SYS64_ISS_SYS_MRS_OP_VAL \
+				(ESR_ELx_SYS64_ISS_SYS_VAL(3, 0, 0, 0, 0) | \
+				 ESR_ELx_SYS64_ISS_DIR_READ)
+
+#define ESR_ELx_SYS64_ISS_SYS_CTR	ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 1, 0, 0)
+#define ESR_ELx_SYS64_ISS_SYS_CTR_READ	(ESR_ELx_SYS64_ISS_SYS_CTR | \
+					 ESR_ELx_SYS64_ISS_DIR_READ)
+
+#define ESR_ELx_SYS64_ISS_SYS_CNTVCT	(ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 2, 14, 0) | \
+					 ESR_ELx_SYS64_ISS_DIR_READ)
+
+#define ESR_ELx_SYS64_ISS_SYS_CNTVCTSS	(ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 6, 14, 0) | \
+					 ESR_ELx_SYS64_ISS_DIR_READ)
+
+#define ESR_ELx_SYS64_ISS_SYS_CNTFRQ	(ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 0, 14, 0) | \
+					 ESR_ELx_SYS64_ISS_DIR_READ)
+
+#define esr_sys64_to_sysreg(e)					\
+	sys_reg((((e) & ESR_ELx_SYS64_ISS_OP0_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_OP0_SHIFT),			\
+		(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_OP1_SHIFT),			\
+		(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_CRN_SHIFT),			\
+		(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_CRM_SHIFT),			\
+		(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_OP2_SHIFT))
+
+#define esr_cp15_to_sysreg(e)					\
+	sys_reg(3,						\
+		(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_OP1_SHIFT),			\
+		(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_CRN_SHIFT),			\
+		(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_CRM_SHIFT),			\
+		(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >>		\
+		 ESR_ELx_SYS64_ISS_OP2_SHIFT))
+
+/* ISS field definitions for ERET/ERETAA/ERETAB trapping */
+#define ESR_ELx_ERET_ISS_ERET		0x2
+#define ESR_ELx_ERET_ISS_ERETA		0x1
+
+/*
+ * ISS field definitions for floating-point exception traps
+ * (FP_EXC_32/FP_EXC_64).
+ *
+ * (The FPEXC_* constants are used instead for common bits.)
+ */
+
+#define ESR_ELx_FP_EXC_TFV	(UL(1) << 23)
+
+/*
+ * ISS field definitions for CP15 accesses
+ */
+#define ESR_ELx_CP15_32_ISS_DIR_MASK	0x1
+#define ESR_ELx_CP15_32_ISS_DIR_READ	0x1
+#define ESR_ELx_CP15_32_ISS_DIR_WRITE	0x0
+
+#define ESR_ELx_CP15_32_ISS_RT_SHIFT	5
+#define ESR_ELx_CP15_32_ISS_RT_MASK	(UL(0x1f) << ESR_ELx_CP15_32_ISS_RT_SHIFT)
+#define ESR_ELx_CP15_32_ISS_CRM_SHIFT	1
+#define ESR_ELx_CP15_32_ISS_CRM_MASK	(UL(0xf) << ESR_ELx_CP15_32_ISS_CRM_SHIFT)
+#define ESR_ELx_CP15_32_ISS_CRN_SHIFT	10
+#define ESR_ELx_CP15_32_ISS_CRN_MASK	(UL(0xf) << ESR_ELx_CP15_32_ISS_CRN_SHIFT)
+#define ESR_ELx_CP15_32_ISS_OP1_SHIFT	14
+#define ESR_ELx_CP15_32_ISS_OP1_MASK	(UL(0x7) << ESR_ELx_CP15_32_ISS_OP1_SHIFT)
+#define ESR_ELx_CP15_32_ISS_OP2_SHIFT	17
+#define ESR_ELx_CP15_32_ISS_OP2_MASK	(UL(0x7) << ESR_ELx_CP15_32_ISS_OP2_SHIFT)
+
+#define ESR_ELx_CP15_32_ISS_SYS_MASK	(ESR_ELx_CP15_32_ISS_OP1_MASK | \
+					 ESR_ELx_CP15_32_ISS_OP2_MASK | \
+					 ESR_ELx_CP15_32_ISS_CRN_MASK | \
+					 ESR_ELx_CP15_32_ISS_CRM_MASK | \
+					 ESR_ELx_CP15_32_ISS_DIR_MASK)
+#define ESR_ELx_CP15_32_ISS_SYS_VAL(op1, op2, crn, crm) \
+					(((op1) << ESR_ELx_CP15_32_ISS_OP1_SHIFT) | \
+					 ((op2) << ESR_ELx_CP15_32_ISS_OP2_SHIFT) | \
+					 ((crn) << ESR_ELx_CP15_32_ISS_CRN_SHIFT) | \
+					 ((crm) << ESR_ELx_CP15_32_ISS_CRM_SHIFT))
+
+#define ESR_ELx_CP15_64_ISS_DIR_MASK	0x1
+#define ESR_ELx_CP15_64_ISS_DIR_READ	0x1
+#define ESR_ELx_CP15_64_ISS_DIR_WRITE	0x0
+
+#define ESR_ELx_CP15_64_ISS_RT_SHIFT	5
+#define ESR_ELx_CP15_64_ISS_RT_MASK	(UL(0x1f) << ESR_ELx_CP15_64_ISS_RT_SHIFT)
+
+#define ESR_ELx_CP15_64_ISS_RT2_SHIFT	10
+#define ESR_ELx_CP15_64_ISS_RT2_MASK	(UL(0x1f) << ESR_ELx_CP15_64_ISS_RT2_SHIFT)
+
+#define ESR_ELx_CP15_64_ISS_OP1_SHIFT	16
+#define ESR_ELx_CP15_64_ISS_OP1_MASK	(UL(0xf) << ESR_ELx_CP15_64_ISS_OP1_SHIFT)
+#define ESR_ELx_CP15_64_ISS_CRM_SHIFT	1
+#define ESR_ELx_CP15_64_ISS_CRM_MASK	(UL(0xf) << ESR_ELx_CP15_64_ISS_CRM_SHIFT)
+
+#define ESR_ELx_CP15_64_ISS_SYS_VAL(op1, crm) \
+					(((op1) << ESR_ELx_CP15_64_ISS_OP1_SHIFT) | \
+					 ((crm) << ESR_ELx_CP15_64_ISS_CRM_SHIFT))
+
+#define ESR_ELx_CP15_64_ISS_SYS_MASK	(ESR_ELx_CP15_64_ISS_OP1_MASK |	\
+					 ESR_ELx_CP15_64_ISS_CRM_MASK | \
+					 ESR_ELx_CP15_64_ISS_DIR_MASK)
+
+#define ESR_ELx_CP15_64_ISS_SYS_CNTVCT	(ESR_ELx_CP15_64_ISS_SYS_VAL(1, 14) | \
+					 ESR_ELx_CP15_64_ISS_DIR_READ)
+
+#define ESR_ELx_CP15_64_ISS_SYS_CNTVCTSS (ESR_ELx_CP15_64_ISS_SYS_VAL(9, 14) | \
+					 ESR_ELx_CP15_64_ISS_DIR_READ)
+
+#define ESR_ELx_CP15_32_ISS_SYS_CNTFRQ	(ESR_ELx_CP15_32_ISS_SYS_VAL(0, 0, 14, 0) |\
+					 ESR_ELx_CP15_32_ISS_DIR_READ)
+
+/*
+ * ISS values for SME traps
+ */
+
+#define ESR_ELx_SME_ISS_SME_DISABLED	0
+#define ESR_ELx_SME_ISS_ILL		1
+#define ESR_ELx_SME_ISS_SM_DISABLED	2
+#define ESR_ELx_SME_ISS_ZA_DISABLED	3
+#define ESR_ELx_SME_ISS_ZT_DISABLED	4
+
+/* ISS field definitions for MOPS exceptions */
+#define ESR_ELx_MOPS_ISS_MEM_INST	(UL(1) << 24)
+#define ESR_ELx_MOPS_ISS_FROM_EPILOGUE	(UL(1) << 18)
+#define ESR_ELx_MOPS_ISS_WRONG_OPTION	(UL(1) << 17)
+#define ESR_ELx_MOPS_ISS_OPTION_A	(UL(1) << 16)
+#define ESR_ELx_MOPS_ISS_DESTREG(esr)	(((esr) & (UL(0x1f) << 10)) >> 10)
+#define ESR_ELx_MOPS_ISS_SRCREG(esr)	(((esr) & (UL(0x1f) << 5)) >> 5)
+#define ESR_ELx_MOPS_ISS_SIZEREG(esr)	(((esr) & (UL(0x1f) << 0)) >> 0)
+
+#ifndef __ASSEMBLY__
+#include <asm/types.h>
+
+static inline unsigned long esr_brk_comment(unsigned long esr)
+{
+	return esr & ESR_ELx_BRK64_ISS_COMMENT_MASK;
+}
+
+static inline bool esr_is_data_abort(unsigned long esr)
+{
+	const unsigned long ec = ESR_ELx_EC(esr);
+
+	return ec == ESR_ELx_EC_DABT_LOW || ec == ESR_ELx_EC_DABT_CUR;
+}
+
+static inline bool esr_is_cfi_brk(unsigned long esr)
+{
+	return ESR_ELx_EC(esr) == ESR_ELx_EC_BRK64 &&
+	       (esr_brk_comment(esr) & ~CFI_BRK_IMM_MASK) == CFI_BRK_IMM_BASE;
+}
+
+static inline bool esr_fsc_is_translation_fault(unsigned long esr)
+{
+	esr = esr & ESR_ELx_FSC;
+
+	return (esr == ESR_ELx_FSC_FAULT_L(3)) ||
+	       (esr == ESR_ELx_FSC_FAULT_L(2)) ||
+	       (esr == ESR_ELx_FSC_FAULT_L(1)) ||
+	       (esr == ESR_ELx_FSC_FAULT_L(0)) ||
+	       (esr == ESR_ELx_FSC_FAULT_L(-1));
+}
+
+static inline bool esr_fsc_is_permission_fault(unsigned long esr)
+{
+	esr = esr & ESR_ELx_FSC;
+
+	return (esr == ESR_ELx_FSC_PERM_L(3)) ||
+	       (esr == ESR_ELx_FSC_PERM_L(2)) ||
+	       (esr == ESR_ELx_FSC_PERM_L(1)) ||
+	       (esr == ESR_ELx_FSC_PERM_L(0));
+}
+
+static inline bool esr_fsc_is_access_flag_fault(unsigned long esr)
+{
+	esr = esr & ESR_ELx_FSC;
+
+	return (esr == ESR_ELx_FSC_ACCESS_L(3)) ||
+	       (esr == ESR_ELx_FSC_ACCESS_L(2)) ||
+	       (esr == ESR_ELx_FSC_ACCESS_L(1)) ||
+	       (esr == ESR_ELx_FSC_ACCESS_L(0));
+}
+
+/* Indicate whether ESR.EC==0x1A is for an ERETAx instruction */
+static inline bool esr_iss_is_eretax(unsigned long esr)
+{
+	return esr & ESR_ELx_ERET_ISS_ERET;
+}
+
+/* Indicate which key is used for ERETAx (false: A-Key, true: B-Key) */
+static inline bool esr_iss_is_eretab(unsigned long esr)
+{
+	return esr & ESR_ELx_ERET_ISS_ERETA;
+}
+
+const char *esr_get_class_string(unsigned long esr);
+#endif /* __ASSEMBLY */
+
+#endif /* __ASM_ESR_H */