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authorCatalin Marinas <catalin.marinas@arm.com>2023-06-23 20:34:16 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2023-06-23 20:34:16 +0300
commitabc17128c81ae8d6a091f24348c63cbe8fe59724 (patch)
tree90dc9c2268fc399b0aa812cab6e223859720a741 /arch
parentf42039d10b0f1d0075568df1d64df31f5cc90e92 (diff)
parent5f0419a0083b304566fa32c27a0f009634a7f703 (diff)
downloadlinux-abc17128c81ae8d6a091f24348c63cbe8fe59724.tar.xz
Merge branch 'for-next/feat_s1pie' into for-next/core
* for-next/feat_s1pie: : Support for the Armv8.9 Permission Indirection Extensions (stage 1 only) KVM: selftests: get-reg-list: add Permission Indirection registers KVM: selftests: get-reg-list: support ID register features arm64: Document boot requirements for PIE arm64: transfer permission indirection settings to EL2 arm64: enable Permission Indirection Extension (PIE) arm64: add encodings of PIRx_ELx registers arm64: disable EL2 traps for PIE arm64: reorganise PAGE_/PROT_ macros arm64: add PTE_WRITE to PROT_SECT_NORMAL arm64: add PTE_UXN/PTE_WRITE to SWAPPER_*_FLAGS KVM: arm64: expose ID_AA64MMFR3_EL1 to guests KVM: arm64: Save/restore PIE registers KVM: arm64: Save/restore TCR2_EL1 arm64: cpufeature: add Permission Indirection Extension cpucap arm64: cpufeature: add TCR2 cpucap arm64: cpufeature: add system register ID_AA64MMFR3 arm64/sysreg: add PIR*_ELx registers arm64/sysreg: update HCRX_EL2 register arm64/sysreg: add system registers TCR2_ELx arm64/sysreg: Add ID register ID_AA64MMFR3
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/include/asm/cpu.h1
-rw-r--r--arch/arm64/include/asm/el2_setup.h11
-rw-r--r--arch/arm64/include/asm/kernel-pgtable.h8
-rw-r--r--arch/arm64/include/asm/kvm_arm.h4
-rw-r--r--arch/arm64/include/asm/kvm_host.h5
-rw-r--r--arch/arm64/include/asm/pgtable-hwdef.h8
-rw-r--r--arch/arm64/include/asm/pgtable-prot.h122
-rw-r--r--arch/arm64/include/asm/sysreg.h19
-rw-r--r--arch/arm64/kernel/cpufeature.c24
-rw-r--r--arch/arm64/kernel/cpuinfo.c1
-rw-r--r--arch/arm64/kernel/head.S8
-rw-r--r--arch/arm64/kernel/hyp-stub.S18
-rw-r--r--arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h12
-rw-r--r--arch/arm64/kvm/sys_regs.c5
-rw-r--r--arch/arm64/mm/proc.S19
-rw-r--r--arch/arm64/tools/cpucaps2
-rw-r--r--arch/arm64/tools/sysreg165
17 files changed, 389 insertions, 43 deletions
diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
index fd7a92219eea..e749838b9c5d 100644
--- a/arch/arm64/include/asm/cpu.h
+++ b/arch/arm64/include/asm/cpu.h
@@ -56,6 +56,7 @@ struct cpuinfo_arm64 {
u64 reg_id_aa64mmfr0;
u64 reg_id_aa64mmfr1;
u64 reg_id_aa64mmfr2;
+ u64 reg_id_aa64mmfr3;
u64 reg_id_aa64pfr0;
u64 reg_id_aa64pfr1;
u64 reg_id_aa64zfr0;
diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h
index 96440c7f2a84..f4c3d30bf746 100644
--- a/arch/arm64/include/asm/el2_setup.h
+++ b/arch/arm64/include/asm/el2_setup.h
@@ -159,12 +159,21 @@
mov x0, xzr
mrs x1, id_aa64pfr1_el1
ubfx x1, x1, #ID_AA64PFR1_EL1_SME_SHIFT, #4
- cbz x1, .Lset_fgt_\@
+ cbz x1, .Lset_pie_fgt_\@
/* Disable nVHE traps of TPIDR2 and SMPRI */
orr x0, x0, #HFGxTR_EL2_nSMPRI_EL1_MASK
orr x0, x0, #HFGxTR_EL2_nTPIDR2_EL0_MASK
+.Lset_pie_fgt_\@:
+ mrs_s x1, SYS_ID_AA64MMFR3_EL1
+ ubfx x1, x1, #ID_AA64MMFR3_EL1_S1PIE_SHIFT, #4
+ cbz x1, .Lset_fgt_\@
+
+ /* Disable trapping of PIR_EL1 / PIRE0_EL1 */
+ orr x0, x0, #HFGxTR_EL2_nPIR_EL1
+ orr x0, x0, #HFGxTR_EL2_nPIRE0_EL1
+
.Lset_fgt_\@:
msr_s SYS_HFGRTR_EL2, x0
msr_s SYS_HFGWTR_EL2, x0
diff --git a/arch/arm64/include/asm/kernel-pgtable.h b/arch/arm64/include/asm/kernel-pgtable.h
index 186dd7f85b14..577773870b66 100644
--- a/arch/arm64/include/asm/kernel-pgtable.h
+++ b/arch/arm64/include/asm/kernel-pgtable.h
@@ -107,14 +107,14 @@
/*
* Initial memory map attributes.
*/
-#define SWAPPER_PTE_FLAGS (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED)
-#define SWAPPER_PMD_FLAGS (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S)
+#define SWAPPER_PTE_FLAGS (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED | PTE_UXN)
+#define SWAPPER_PMD_FLAGS (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S | PTE_UXN)
#ifdef CONFIG_ARM64_4K_PAGES
-#define SWAPPER_RW_MMUFLAGS (PMD_ATTRINDX(MT_NORMAL) | SWAPPER_PMD_FLAGS)
+#define SWAPPER_RW_MMUFLAGS (PMD_ATTRINDX(MT_NORMAL) | SWAPPER_PMD_FLAGS | PTE_WRITE)
#define SWAPPER_RX_MMUFLAGS (SWAPPER_RW_MMUFLAGS | PMD_SECT_RDONLY)
#else
-#define SWAPPER_RW_MMUFLAGS (PTE_ATTRINDX(MT_NORMAL) | SWAPPER_PTE_FLAGS)
+#define SWAPPER_RW_MMUFLAGS (PTE_ATTRINDX(MT_NORMAL) | SWAPPER_PTE_FLAGS | PTE_WRITE)
#define SWAPPER_RX_MMUFLAGS (SWAPPER_RW_MMUFLAGS | PTE_RDONLY)
#endif
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index d2d4f4cd12b8..c6e12e8f2751 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -93,8 +93,8 @@
#define HCR_HOST_NVHE_PROTECTED_FLAGS (HCR_HOST_NVHE_FLAGS | HCR_TSC)
#define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H)
-#define HCRX_GUEST_FLAGS (HCRX_EL2_SMPME)
-#define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn)
+#define HCRX_GUEST_FLAGS (HCRX_EL2_SMPME | HCRX_EL2_TCR2En)
+#define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn | HCRX_EL2_TCR2En)
/* TCR_EL2 Registers bits */
#define TCR_EL2_RES1 ((1U << 31) | (1 << 23))
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index e759e6b0cd02..8dbe8d8f7d7a 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -279,6 +279,7 @@ enum vcpu_sysreg {
TTBR0_EL1, /* Translation Table Base Register 0 */
TTBR1_EL1, /* Translation Table Base Register 1 */
TCR_EL1, /* Translation Control Register */
+ TCR2_EL1, /* Extended Translation Control Register */
ESR_EL1, /* Exception Syndrome Register */
AFSR0_EL1, /* Auxiliary Fault Status Register 0 */
AFSR1_EL1, /* Auxiliary Fault Status Register 1 */
@@ -339,6 +340,10 @@ enum vcpu_sysreg {
TFSR_EL1, /* Tag Fault Status Register (EL1) */
TFSRE0_EL1, /* Tag Fault Status Register (EL0) */
+ /* Permission Indirection Extension registers */
+ PIR_EL1, /* Permission Indirection Register 1 (EL1) */
+ PIRE0_EL1, /* Permission Indirection Register 0 (EL1) */
+
/* 32bit specific registers. */
DACR32_EL2, /* Domain Access Control Register */
IFSR32_EL2, /* Instruction Fault Status Register */
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index f658aafc47df..e4944d517c99 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -171,6 +171,14 @@
#define PTE_ATTRINDX_MASK (_AT(pteval_t, 7) << 2)
/*
+ * PIIndex[3:0] encoding (Permission Indirection Extension)
+ */
+#define PTE_PI_IDX_0 6 /* AP[1], USER */
+#define PTE_PI_IDX_1 51 /* DBM */
+#define PTE_PI_IDX_2 53 /* PXN */
+#define PTE_PI_IDX_3 54 /* UXN */
+
+/*
* Memory Attribute override for Stage-2 (MemAttr[3:0])
*/
#define PTE_S2_MEMATTR(t) (_AT(pteval_t, (t)) << 2)
diff --git a/arch/arm64/include/asm/pgtable-prot.h b/arch/arm64/include/asm/pgtable-prot.h
index 9b165117a454..eed814b00a38 100644
--- a/arch/arm64/include/asm/pgtable-prot.h
+++ b/arch/arm64/include/asm/pgtable-prot.h
@@ -27,6 +27,40 @@
*/
#define PMD_PRESENT_INVALID (_AT(pteval_t, 1) << 59) /* only when !PMD_SECT_VALID */
+#define _PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED)
+#define _PROT_SECT_DEFAULT (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S)
+
+#define PROT_DEFAULT (_PROT_DEFAULT | PTE_MAYBE_NG)
+#define PROT_SECT_DEFAULT (_PROT_SECT_DEFAULT | PMD_MAYBE_NG)
+
+#define PROT_DEVICE_nGnRnE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRnE))
+#define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRE))
+#define PROT_NORMAL_NC (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_NC))
+#define PROT_NORMAL (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL))
+#define PROT_NORMAL_TAGGED (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_TAGGED))
+
+#define PROT_SECT_DEVICE_nGnRE (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_DEVICE_nGnRE))
+#define PROT_SECT_NORMAL (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PTE_WRITE | PMD_ATTRINDX(MT_NORMAL))
+#define PROT_SECT_NORMAL_EXEC (PROT_SECT_DEFAULT | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL))
+
+#define _PAGE_DEFAULT (_PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL))
+
+#define _PAGE_KERNEL (PROT_NORMAL)
+#define _PAGE_KERNEL_RO ((PROT_NORMAL & ~PTE_WRITE) | PTE_RDONLY)
+#define _PAGE_KERNEL_ROX ((PROT_NORMAL & ~(PTE_WRITE | PTE_PXN)) | PTE_RDONLY)
+#define _PAGE_KERNEL_EXEC (PROT_NORMAL & ~PTE_PXN)
+#define _PAGE_KERNEL_EXEC_CONT ((PROT_NORMAL & ~PTE_PXN) | PTE_CONT)
+
+#define _PAGE_SHARED (_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_UXN | PTE_WRITE)
+#define _PAGE_SHARED_EXEC (_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_WRITE)
+#define _PAGE_READONLY (_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_UXN)
+#define _PAGE_READONLY_EXEC (_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN)
+#define _PAGE_EXECONLY (_PAGE_DEFAULT | PTE_RDONLY | PTE_NG | PTE_PXN)
+
+#ifdef __ASSEMBLY__
+#define PTE_MAYBE_NG 0
+#endif
+
#ifndef __ASSEMBLY__
#include <asm/cpufeature.h>
@@ -34,9 +68,6 @@
extern bool arm64_use_ng_mappings;
-#define _PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED)
-#define _PROT_SECT_DEFAULT (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S)
-
#define PTE_MAYBE_NG (arm64_use_ng_mappings ? PTE_NG : 0)
#define PMD_MAYBE_NG (arm64_use_ng_mappings ? PMD_SECT_NG : 0)
@@ -50,26 +81,11 @@ extern bool arm64_use_ng_mappings;
#define PTE_MAYBE_GP 0
#endif
-#define PROT_DEFAULT (_PROT_DEFAULT | PTE_MAYBE_NG)
-#define PROT_SECT_DEFAULT (_PROT_SECT_DEFAULT | PMD_MAYBE_NG)
-
-#define PROT_DEVICE_nGnRnE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRnE))
-#define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRE))
-#define PROT_NORMAL_NC (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_NC))
-#define PROT_NORMAL (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL))
-#define PROT_NORMAL_TAGGED (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_TAGGED))
-
-#define PROT_SECT_DEVICE_nGnRE (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_DEVICE_nGnRE))
-#define PROT_SECT_NORMAL (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL))
-#define PROT_SECT_NORMAL_EXEC (PROT_SECT_DEFAULT | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL))
-
-#define _PAGE_DEFAULT (_PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL))
-
-#define PAGE_KERNEL __pgprot(PROT_NORMAL)
-#define PAGE_KERNEL_RO __pgprot((PROT_NORMAL & ~PTE_WRITE) | PTE_RDONLY)
-#define PAGE_KERNEL_ROX __pgprot((PROT_NORMAL & ~(PTE_WRITE | PTE_PXN)) | PTE_RDONLY)
-#define PAGE_KERNEL_EXEC __pgprot(PROT_NORMAL & ~PTE_PXN)
-#define PAGE_KERNEL_EXEC_CONT __pgprot((PROT_NORMAL & ~PTE_PXN) | PTE_CONT)
+#define PAGE_KERNEL __pgprot(_PAGE_KERNEL)
+#define PAGE_KERNEL_RO __pgprot(_PAGE_KERNEL_RO)
+#define PAGE_KERNEL_ROX __pgprot(_PAGE_KERNEL_ROX)
+#define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_EXEC_CONT __pgprot(_PAGE_KERNEL_EXEC_CONT)
#define PAGE_S2_MEMATTR(attr, has_fwb) \
({ \
@@ -83,12 +99,62 @@ extern bool arm64_use_ng_mappings;
#define PAGE_NONE __pgprot(((_PAGE_DEFAULT) & ~PTE_VALID) | PTE_PROT_NONE | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_UXN)
/* shared+writable pages are clean by default, hence PTE_RDONLY|PTE_WRITE */
-#define PAGE_SHARED __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_UXN | PTE_WRITE)
-#define PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_WRITE)
-#define PAGE_READONLY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_UXN)
-#define PAGE_READONLY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN)
-#define PAGE_EXECONLY __pgprot(_PAGE_DEFAULT | PTE_RDONLY | PTE_NG | PTE_PXN)
+#define PAGE_SHARED __pgprot(_PAGE_SHARED)
+#define PAGE_SHARED_EXEC __pgprot(_PAGE_SHARED_EXEC)
+#define PAGE_READONLY __pgprot(_PAGE_READONLY)
+#define PAGE_READONLY_EXEC __pgprot(_PAGE_READONLY_EXEC)
+#define PAGE_EXECONLY __pgprot(_PAGE_EXECONLY)
#endif /* __ASSEMBLY__ */
+#define pte_pi_index(pte) ( \
+ ((pte & BIT(PTE_PI_IDX_3)) >> (PTE_PI_IDX_3 - 3)) | \
+ ((pte & BIT(PTE_PI_IDX_2)) >> (PTE_PI_IDX_2 - 2)) | \
+ ((pte & BIT(PTE_PI_IDX_1)) >> (PTE_PI_IDX_1 - 1)) | \
+ ((pte & BIT(PTE_PI_IDX_0)) >> (PTE_PI_IDX_0 - 0)))
+
+/*
+ * Page types used via Permission Indirection Extension (PIE). PIE uses
+ * the USER, DBM, PXN and UXN bits to to generate an index which is used
+ * to look up the actual permission in PIR_ELx and PIRE0_EL1. We define
+ * combinations we use on non-PIE systems with the same encoding, for
+ * convenience these are listed here as comments as are the unallocated
+ * encodings.
+ */
+
+/* 0: PAGE_DEFAULT */
+/* 1: PTE_USER */
+/* 2: PTE_WRITE */
+/* 3: PTE_WRITE | PTE_USER */
+/* 4: PAGE_EXECONLY PTE_PXN */
+/* 5: PAGE_READONLY_EXEC PTE_PXN | PTE_USER */
+/* 6: PTE_PXN | PTE_WRITE */
+/* 7: PAGE_SHARED_EXEC PTE_PXN | PTE_WRITE | PTE_USER */
+/* 8: PAGE_KERNEL_ROX PTE_UXN */
+/* 9: PTE_UXN | PTE_USER */
+/* a: PAGE_KERNEL_EXEC PTE_UXN | PTE_WRITE */
+/* b: PTE_UXN | PTE_WRITE | PTE_USER */
+/* c: PAGE_KERNEL_RO PTE_UXN | PTE_PXN */
+/* d: PAGE_READONLY PTE_UXN | PTE_PXN | PTE_USER */
+/* e: PAGE_KERNEL PTE_UXN | PTE_PXN | PTE_WRITE */
+/* f: PAGE_SHARED PTE_UXN | PTE_PXN | PTE_WRITE | PTE_USER */
+
+#define PIE_E0 ( \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_EXECONLY), PIE_X_O) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_READONLY_EXEC), PIE_RX) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_SHARED_EXEC), PIE_RWX) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_READONLY), PIE_R) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_SHARED), PIE_RW))
+
+#define PIE_E1 ( \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_EXECONLY), PIE_NONE_O) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_READONLY_EXEC), PIE_R) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_SHARED_EXEC), PIE_RW) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_READONLY), PIE_R) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_SHARED), PIE_RW) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_KERNEL_ROX), PIE_RX) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_KERNEL_EXEC), PIE_RWX) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_KERNEL_RO), PIE_R) | \
+ PIRx_ELx_PERM(pte_pi_index(_PAGE_KERNEL), PIE_RW))
+
#endif /* __ASM_PGTABLE_PROT_H */
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 0c07b03d511f..b5943f113af1 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -704,6 +704,25 @@
#define ICH_VTR_TDS_SHIFT 19
#define ICH_VTR_TDS_MASK (1 << ICH_VTR_TDS_SHIFT)
+/*
+ * Permission Indirection Extension (PIE) permission encodings.
+ * Encodings with the _O suffix, have overlays applied (Permission Overlay Extension).
+ */
+#define PIE_NONE_O 0x0
+#define PIE_R_O 0x1
+#define PIE_X_O 0x2
+#define PIE_RX_O 0x3
+#define PIE_RW_O 0x5
+#define PIE_RWnX_O 0x6
+#define PIE_RWX_O 0x7
+#define PIE_R 0x8
+#define PIE_GCS 0x9
+#define PIE_RX 0xa
+#define PIE_RW 0xc
+#define PIE_RWX 0xe
+
+#define PIRx_ELx_PERM(idx, perm) ((perm) << ((idx) * 4))
+
#define ARM64_FEATURE_FIELD_BITS 4
/* Defined for compatibility only, do not add new users. */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 05660f0d96cf..6ea7f23b1287 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -398,6 +398,12 @@ static const struct arm64_ftr_bits ftr_id_aa64mmfr2[] = {
ARM64_FTR_END,
};
+static const struct arm64_ftr_bits ftr_id_aa64mmfr3[] = {
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR3_EL1_S1PIE_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR3_EL1_TCRX_SHIFT, 4, 0),
+ ARM64_FTR_END,
+};
+
static const struct arm64_ftr_bits ftr_ctr[] = {
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, 31, 1, 1), /* RES1 */
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, CTR_EL0_DIC_SHIFT, 1, 1),
@@ -724,6 +730,7 @@ static const struct __ftr_reg_entry {
ARM64_FTR_REG_OVERRIDE(SYS_ID_AA64MMFR1_EL1, ftr_id_aa64mmfr1,
&id_aa64mmfr1_override),
ARM64_FTR_REG(SYS_ID_AA64MMFR2_EL1, ftr_id_aa64mmfr2),
+ ARM64_FTR_REG(SYS_ID_AA64MMFR3_EL1, ftr_id_aa64mmfr3),
/* Op1 = 0, CRn = 1, CRm = 2 */
ARM64_FTR_REG(SYS_ZCR_EL1, ftr_zcr),
@@ -1019,6 +1026,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info)
init_cpu_ftr_reg(SYS_ID_AA64MMFR0_EL1, info->reg_id_aa64mmfr0);
init_cpu_ftr_reg(SYS_ID_AA64MMFR1_EL1, info->reg_id_aa64mmfr1);
init_cpu_ftr_reg(SYS_ID_AA64MMFR2_EL1, info->reg_id_aa64mmfr2);
+ init_cpu_ftr_reg(SYS_ID_AA64MMFR3_EL1, info->reg_id_aa64mmfr3);
init_cpu_ftr_reg(SYS_ID_AA64PFR0_EL1, info->reg_id_aa64pfr0);
init_cpu_ftr_reg(SYS_ID_AA64PFR1_EL1, info->reg_id_aa64pfr1);
init_cpu_ftr_reg(SYS_ID_AA64ZFR0_EL1, info->reg_id_aa64zfr0);
@@ -1264,6 +1272,8 @@ void update_cpu_features(int cpu,
info->reg_id_aa64mmfr1, boot->reg_id_aa64mmfr1);
taint |= check_update_ftr_reg(SYS_ID_AA64MMFR2_EL1, cpu,
info->reg_id_aa64mmfr2, boot->reg_id_aa64mmfr2);
+ taint |= check_update_ftr_reg(SYS_ID_AA64MMFR3_EL1, cpu,
+ info->reg_id_aa64mmfr3, boot->reg_id_aa64mmfr3);
taint |= check_update_ftr_reg(SYS_ID_AA64PFR0_EL1, cpu,
info->reg_id_aa64pfr0, boot->reg_id_aa64pfr0);
@@ -1393,6 +1403,7 @@ u64 __read_sysreg_by_encoding(u32 sys_id)
read_sysreg_case(SYS_ID_AA64MMFR0_EL1);
read_sysreg_case(SYS_ID_AA64MMFR1_EL1);
read_sysreg_case(SYS_ID_AA64MMFR2_EL1);
+ read_sysreg_case(SYS_ID_AA64MMFR3_EL1);
read_sysreg_case(SYS_ID_AA64ISAR0_EL1);
read_sysreg_case(SYS_ID_AA64ISAR1_EL1);
read_sysreg_case(SYS_ID_AA64ISAR2_EL1);
@@ -2659,6 +2670,19 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.cpu_enable = cpu_enable_mops,
ARM64_CPUID_FIELDS(ID_AA64ISAR2_EL1, MOPS, IMP)
},
+ {
+ .capability = ARM64_HAS_TCR2,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
+ .matches = has_cpuid_feature,
+ ARM64_CPUID_FIELDS(ID_AA64MMFR3_EL1, TCRX, IMP)
+ },
+ {
+ .desc = "Stage-1 Permission Indirection Extension (S1PIE)",
+ .capability = ARM64_HAS_S1PIE,
+ .type = ARM64_CPUCAP_BOOT_CPU_FEATURE,
+ .matches = has_cpuid_feature,
+ ARM64_CPUID_FIELDS(ID_AA64MMFR3_EL1, S1PIE, IMP)
+ },
{},
};
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 076a124255d0..58622dc85917 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -447,6 +447,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info)
info->reg_id_aa64mmfr0 = read_cpuid(ID_AA64MMFR0_EL1);
info->reg_id_aa64mmfr1 = read_cpuid(ID_AA64MMFR1_EL1);
info->reg_id_aa64mmfr2 = read_cpuid(ID_AA64MMFR2_EL1);
+ info->reg_id_aa64mmfr3 = read_cpuid(ID_AA64MMFR3_EL1);
info->reg_id_aa64pfr0 = read_cpuid(ID_AA64PFR0_EL1);
info->reg_id_aa64pfr1 = read_cpuid(ID_AA64PFR1_EL1);
info->reg_id_aa64zfr0 = read_cpuid(ID_AA64ZFR0_EL1);
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index e92caebff46a..0f5a30f109d9 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -382,7 +382,7 @@ SYM_FUNC_START_LOCAL(create_idmap)
adrp x0, init_idmap_pg_dir
adrp x3, _text
adrp x6, _end + MAX_FDT_SIZE + SWAPPER_BLOCK_SIZE
- mov x7, SWAPPER_RX_MMUFLAGS
+ mov_q x7, SWAPPER_RX_MMUFLAGS
map_memory x0, x1, x3, x6, x7, x3, IDMAP_PGD_ORDER, x10, x11, x12, x13, x14, EXTRA_SHIFT
@@ -391,7 +391,7 @@ SYM_FUNC_START_LOCAL(create_idmap)
adrp x2, init_pg_dir
adrp x3, init_pg_end
bic x4, x2, #SWAPPER_BLOCK_SIZE - 1
- mov x5, SWAPPER_RW_MMUFLAGS
+ mov_q x5, SWAPPER_RW_MMUFLAGS
mov x6, #SWAPPER_BLOCK_SHIFT
bl remap_region
@@ -402,7 +402,7 @@ SYM_FUNC_START_LOCAL(create_idmap)
bfi x22, x21, #0, #SWAPPER_BLOCK_SHIFT // remapped FDT address
add x3, x2, #MAX_FDT_SIZE + SWAPPER_BLOCK_SIZE
bic x4, x21, #SWAPPER_BLOCK_SIZE - 1
- mov x5, SWAPPER_RW_MMUFLAGS
+ mov_q x5, SWAPPER_RW_MMUFLAGS
mov x6, #SWAPPER_BLOCK_SHIFT
bl remap_region
@@ -430,7 +430,7 @@ SYM_FUNC_START_LOCAL(create_kernel_mapping)
adrp x3, _text // runtime __pa(_text)
sub x6, x6, x3 // _end - _text
add x6, x6, x5 // runtime __va(_end)
- mov x7, SWAPPER_RW_MMUFLAGS
+ mov_q x7, SWAPPER_RW_MMUFLAGS
map_memory x0, x1, x5, x6, x7, x3, (VA_BITS - PGDIR_SHIFT), x10, x11, x12, x13, x14
diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S
index 9439240c3fcf..d63de1973ddb 100644
--- a/arch/arm64/kernel/hyp-stub.S
+++ b/arch/arm64/kernel/hyp-stub.S
@@ -119,6 +119,24 @@ SYM_CODE_START_LOCAL(__finalise_el2)
msr ttbr1_el1, x0
mrs_s x0, SYS_MAIR_EL12
msr mair_el1, x0
+ mrs x1, REG_ID_AA64MMFR3_EL1
+ ubfx x1, x1, #ID_AA64MMFR3_EL1_TCRX_SHIFT, #4
+ cbz x1, .Lskip_tcr2
+ mrs x0, REG_TCR2_EL12
+ msr REG_TCR2_EL1, x0
+
+ // Transfer permission indirection state
+ mrs x1, REG_ID_AA64MMFR3_EL1
+ ubfx x1, x1, #ID_AA64MMFR3_EL1_S1PIE_SHIFT, #4
+ cbz x1, .Lskip_indirection
+ mrs x0, REG_PIRE0_EL12
+ msr REG_PIRE0_EL1, x0
+ mrs x0, REG_PIR_EL12
+ msr REG_PIR_EL1, x0
+
+.Lskip_indirection:
+.Lskip_tcr2:
+
isb
// Hack the exception return to stay at EL2
diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
index 699ea1f8d409..bb6b571ec627 100644
--- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
+++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
@@ -44,6 +44,8 @@ static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
ctxt_sys_reg(ctxt, TTBR0_EL1) = read_sysreg_el1(SYS_TTBR0);
ctxt_sys_reg(ctxt, TTBR1_EL1) = read_sysreg_el1(SYS_TTBR1);
ctxt_sys_reg(ctxt, TCR_EL1) = read_sysreg_el1(SYS_TCR);
+ if (cpus_have_final_cap(ARM64_HAS_TCR2))
+ ctxt_sys_reg(ctxt, TCR2_EL1) = read_sysreg_el1(SYS_TCR2);
ctxt_sys_reg(ctxt, ESR_EL1) = read_sysreg_el1(SYS_ESR);
ctxt_sys_reg(ctxt, AFSR0_EL1) = read_sysreg_el1(SYS_AFSR0);
ctxt_sys_reg(ctxt, AFSR1_EL1) = read_sysreg_el1(SYS_AFSR1);
@@ -53,6 +55,10 @@ static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
ctxt_sys_reg(ctxt, CONTEXTIDR_EL1) = read_sysreg_el1(SYS_CONTEXTIDR);
ctxt_sys_reg(ctxt, AMAIR_EL1) = read_sysreg_el1(SYS_AMAIR);
ctxt_sys_reg(ctxt, CNTKCTL_EL1) = read_sysreg_el1(SYS_CNTKCTL);
+ if (cpus_have_final_cap(ARM64_HAS_S1PIE)) {
+ ctxt_sys_reg(ctxt, PIR_EL1) = read_sysreg_el1(SYS_PIR);
+ ctxt_sys_reg(ctxt, PIRE0_EL1) = read_sysreg_el1(SYS_PIRE0);
+ }
ctxt_sys_reg(ctxt, PAR_EL1) = read_sysreg_par();
ctxt_sys_reg(ctxt, TPIDR_EL1) = read_sysreg(tpidr_el1);
@@ -114,6 +120,8 @@ static inline void __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt)
write_sysreg_el1(ctxt_sys_reg(ctxt, CPACR_EL1), SYS_CPACR);
write_sysreg_el1(ctxt_sys_reg(ctxt, TTBR0_EL1), SYS_TTBR0);
write_sysreg_el1(ctxt_sys_reg(ctxt, TTBR1_EL1), SYS_TTBR1);
+ if (cpus_have_final_cap(ARM64_HAS_TCR2))
+ write_sysreg_el1(ctxt_sys_reg(ctxt, TCR2_EL1), SYS_TCR2);
write_sysreg_el1(ctxt_sys_reg(ctxt, ESR_EL1), SYS_ESR);
write_sysreg_el1(ctxt_sys_reg(ctxt, AFSR0_EL1), SYS_AFSR0);
write_sysreg_el1(ctxt_sys_reg(ctxt, AFSR1_EL1), SYS_AFSR1);
@@ -123,6 +131,10 @@ static inline void __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt)
write_sysreg_el1(ctxt_sys_reg(ctxt, CONTEXTIDR_EL1), SYS_CONTEXTIDR);
write_sysreg_el1(ctxt_sys_reg(ctxt, AMAIR_EL1), SYS_AMAIR);
write_sysreg_el1(ctxt_sys_reg(ctxt, CNTKCTL_EL1), SYS_CNTKCTL);
+ if (cpus_have_final_cap(ARM64_HAS_S1PIE)) {
+ write_sysreg_el1(ctxt_sys_reg(ctxt, PIR_EL1), SYS_PIR);
+ write_sysreg_el1(ctxt_sys_reg(ctxt, PIRE0_EL1), SYS_PIRE0);
+ }
write_sysreg(ctxt_sys_reg(ctxt, PAR_EL1), par_el1);
write_sysreg(ctxt_sys_reg(ctxt, TPIDR_EL1), tpidr_el1);
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 34262ff0842b..c48914f46263 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1873,7 +1873,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
ID_SANITISED(ID_AA64MMFR0_EL1),
ID_SANITISED(ID_AA64MMFR1_EL1),
ID_SANITISED(ID_AA64MMFR2_EL1),
- ID_UNALLOCATED(7,3),
+ ID_SANITISED(ID_AA64MMFR3_EL1),
ID_UNALLOCATED(7,4),
ID_UNALLOCATED(7,5),
ID_UNALLOCATED(7,6),
@@ -1893,6 +1893,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_TTBR0_EL1), access_vm_reg, reset_unknown, TTBR0_EL1 },
{ SYS_DESC(SYS_TTBR1_EL1), access_vm_reg, reset_unknown, TTBR1_EL1 },
{ SYS_DESC(SYS_TCR_EL1), access_vm_reg, reset_val, TCR_EL1, 0 },
+ { SYS_DESC(SYS_TCR2_EL1), access_vm_reg, reset_val, TCR2_EL1, 0 },
PTRAUTH_KEY(APIA),
PTRAUTH_KEY(APIB),
@@ -1942,6 +1943,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_PMMIR_EL1), trap_raz_wi },
{ SYS_DESC(SYS_MAIR_EL1), access_vm_reg, reset_unknown, MAIR_EL1 },
+ { SYS_DESC(SYS_PIRE0_EL1), access_vm_reg, reset_unknown, PIRE0_EL1 },
+ { SYS_DESC(SYS_PIR_EL1), access_vm_reg, reset_unknown, PIR_EL1 },
{ SYS_DESC(SYS_AMAIR_EL1), access_vm_reg, reset_amair_el1, AMAIR_EL1 },
{ SYS_DESC(SYS_LORSA_EL1), trap_loregion },
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index c2cb437821ca..2baeec419f62 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -199,7 +199,7 @@ SYM_FUNC_END(idmap_cpu_replace_ttbr1)
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-#define KPTI_NG_PTE_FLAGS (PTE_ATTRINDX(MT_NORMAL) | SWAPPER_PTE_FLAGS)
+#define KPTI_NG_PTE_FLAGS (PTE_ATTRINDX(MT_NORMAL) | SWAPPER_PTE_FLAGS | PTE_WRITE)
.pushsection ".idmap.text", "a"
@@ -290,7 +290,7 @@ SYM_TYPED_FUNC_START(idmap_kpti_install_ng_mappings)
isb
mov temp_pte, x5
- mov pte_flags, #KPTI_NG_PTE_FLAGS
+ mov_q pte_flags, KPTI_NG_PTE_FLAGS
/* Everybody is enjoying the idmap, so we can rewrite swapper. */
/* PGD */
@@ -454,6 +454,21 @@ SYM_FUNC_START(__cpu_setup)
#endif /* CONFIG_ARM64_HW_AFDBM */
msr mair_el1, mair
msr tcr_el1, tcr
+
+ mrs_s x1, SYS_ID_AA64MMFR3_EL1
+ ubfx x1, x1, #ID_AA64MMFR3_EL1_S1PIE_SHIFT, #4
+ cbz x1, .Lskip_indirection
+
+ mov_q x0, PIE_E0
+ msr REG_PIRE0_EL1, x0
+ mov_q x0, PIE_E1
+ msr REG_PIR_EL1, x0
+
+ mov x0, TCR2_EL1x_PIE
+ msr REG_TCR2_EL1, x0
+
+.Lskip_indirection:
+
/*
* Prepare SCTLR
*/
diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps
index debc4609f129..19c23c4fa2da 100644
--- a/arch/arm64/tools/cpucaps
+++ b/arch/arm64/tools/cpucaps
@@ -40,10 +40,12 @@ HAS_NESTED_VIRT
HAS_NO_FPSIMD
HAS_NO_HW_PREFETCH
HAS_PAN
+HAS_S1PIE
HAS_RAS_EXTN
HAS_RNG
HAS_SB
HAS_STAGE2_FWB
+HAS_TCR2
HAS_TIDCP1
HAS_TLB_RANGE
HAS_VIRT_HOST_EXTN
diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index c585725172d5..1ea4a3dc68f8 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -1593,6 +1593,78 @@ UnsignedEnum 3:0 CnP
EndEnum
EndSysreg
+Sysreg ID_AA64MMFR3_EL1 3 0 0 7 3
+UnsignedEnum 63:60 Spec_FPACC
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 59:56 ADERR
+ 0b0000 NI
+ 0b0001 DEV_ASYNC
+ 0b0010 FEAT_ADERR
+ 0b0011 FEAT_ADERR_IND
+EndEnum
+UnsignedEnum 55:52 SDERR
+ 0b0000 NI
+ 0b0001 DEV_SYNC
+ 0b0010 FEAT_ADERR
+ 0b0011 FEAT_ADERR_IND
+EndEnum
+Res0 51:48
+UnsignedEnum 47:44 ANERR
+ 0b0000 NI
+ 0b0001 ASYNC
+ 0b0010 FEAT_ANERR
+ 0b0011 FEAT_ANERR_IND
+EndEnum
+UnsignedEnum 43:40 SNERR
+ 0b0000 NI
+ 0b0001 SYNC
+ 0b0010 FEAT_ANERR
+ 0b0011 FEAT_ANERR_IND
+EndEnum
+UnsignedEnum 39:36 D128_2
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 35:32 D128
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 31:28 MEC
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 27:24 AIE
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 23:20 S2POE
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 19:16 S1POE
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 15:12 S2PIE
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 11:8 S1PIE
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 7:4 SCTLRX
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+UnsignedEnum 3:0 TCRX
+ 0b0000 NI
+ 0b0001 IMP
+EndEnum
+EndSysreg
+
Sysreg SCTLR_EL1 3 0 1 0 0
Field 63 TIDCP
Field 62 SPINTMASK
@@ -2089,7 +2161,17 @@ Fields ZCR_ELx
EndSysreg
Sysreg HCRX_EL2 3 4 1 2 2
-Res0 63:12
+Res0 63:23
+Field 22 GCSEn
+Field 21 EnIDCP128
+Field 20 EnSDERR
+Field 19 TMEA
+Field 18 EnSNERR
+Field 17 D128En
+Field 16 PTTWI
+Field 15 SCTLR2En
+Field 14 TCR2En
+Res0 13:12
Field 11 MSCEn
Field 10 MCE2
Field 9 CMOW
@@ -2208,6 +2290,87 @@ Sysreg TTBR1_EL1 3 0 2 0 1
Fields TTBRx_EL1
EndSysreg
+SysregFields TCR2_EL1x
+Res0 63:16
+Field 15 DisCH1
+Field 14 DisCH0
+Res0 13:12
+Field 11 HAFT
+Field 10 PTTWI
+Res0 9:6
+Field 5 D128
+Field 4 AIE
+Field 3 POE
+Field 2 E0POE
+Field 1 PIE
+Field 0 PnCH
+EndSysregFields
+
+Sysreg TCR2_EL1 3 0 2 0 3
+Fields TCR2_EL1x
+EndSysreg
+
+Sysreg TCR2_EL12 3 5 2 0 3
+Fields TCR2_EL1x
+EndSysreg
+
+Sysreg TCR2_EL2 3 4 2 0 3
+Res0 63:16
+Field 15 DisCH1
+Field 14 DisCH0
+Field 13 AMEC1
+Field 12 AMEC0
+Field 11 HAFT
+Field 10 PTTWI
+Field 9:8 SKL1
+Field 7:6 SKL0
+Field 5 D128
+Field 4 AIE
+Field 3 POE
+Field 2 E0POE
+Field 1 PIE
+Field 0 PnCH
+EndSysreg
+
+SysregFields PIRx_ELx
+Field 63:60 Perm15
+Field 59:56 Perm14
+Field 55:52 Perm13
+Field 51:48 Perm12
+Field 47:44 Perm11
+Field 43:40 Perm10
+Field 39:36 Perm9
+Field 35:32 Perm8
+Field 31:28 Perm7
+Field 27:24 Perm6
+Field 23:20 Perm5
+Field 19:16 Perm4
+Field 15:12 Perm3
+Field 11:8 Perm2
+Field 7:4 Perm1
+Field 3:0 Perm0
+EndSysregFields
+
+Sysreg PIRE0_EL1 3 0 10 2 2
+Fields PIRx_ELx
+EndSysreg
+
+Sysreg PIRE0_EL12 3 5 10 2 2
+Fields PIRx_ELx
+EndSysreg
+
+Sysreg PIR_EL1 3 0 10 2 3
+Fields PIRx_ELx
+EndSysreg
+
+Sysreg PIR_EL12 3 5 10 2 3
+Fields PIRx_ELx
+EndSysreg
+
+Sysreg PIR_EL2 3 4 10 2 3
+Fields PIRx_ELx
+EndSysreg
+
Sysreg LORSA_EL1 3 0 10 4 0
Res0 63:52
Field 51:16 SA