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| author | Catalin Marinas <catalin.marinas@arm.com> | 2023-06-23 19:34:16 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-06-23 19:34:16 +0200 |
| commit | abc17128c81ae8d6a091f24348c63cbe8fe59724 (patch) | |
| tree | 90dc9c2268fc399b0aa812cab6e223859720a741 /arch/arm64/include/asm/sysreg.h | |
| parent | Merge branches 'for-next/kpti', 'for-next/missing-proto-warn', 'for-next/iss2... (diff) | |
| parent | KVM: selftests: get-reg-list: add Permission Indirection registers (diff) | |
| download | linux-abc17128c81ae8d6a091f24348c63cbe8fe59724.tar.xz linux-abc17128c81ae8d6a091f24348c63cbe8fe59724.zip | |
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/arm64/include/asm/sysreg.h')
| -rw-r--r-- | arch/arm64/include/asm/sysreg.h | 19 |
1 files changed, 19 insertions, 0 deletions
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. */ |