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author | Catalin Marinas <catalin.marinas@arm.com> | 2023-06-23 20:34:16 +0300 |
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committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-06-23 20:34:16 +0300 |
commit | abc17128c81ae8d6a091f24348c63cbe8fe59724 (patch) | |
tree | 90dc9c2268fc399b0aa812cab6e223859720a741 /arch/arm64/kvm | |
parent | f42039d10b0f1d0075568df1d64df31f5cc90e92 (diff) | |
parent | 5f0419a0083b304566fa32c27a0f009634a7f703 (diff) | |
download | linux-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/arm64/kvm')
-rw-r--r-- | arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 12 | ||||
-rw-r--r-- | arch/arm64/kvm/sys_regs.c | 5 |
2 files changed, 16 insertions, 1 deletions
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 }, |