[RFC,04/21] arm/cpu: Store aa64isar1/2 into the idregs array

Message ID	20241025101959.601048-5-eric.auger@redhat.com (mailing list archive)
State	New
Headers	show Return-Path: <qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org> From: Eric Auger <eric.auger@redhat.com> To: eric.auger.pro@gmail.com, eric.auger@redhat.com, cohuck@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, kvmarm@lists.linux.dev, peter.maydell@linaro.org, richard.henderson@linaro.org, alex.bennee@linaro.org, maz@kernel.org, oliver.upton@linux.dev, sebott@redhat.com, shameerali.kolothum.thodi@huawei.com, armbru@redhat.com, berrange@redhat.com, abologna@redhat.com, jdenemar@redhat.com Cc: shahuang@redhat.com, mark.rutland@arm.com, philmd@linaro.org, pbonzini@redhat.com Subject: [RFC 04/21] arm/cpu: Store aa64isar1/2 into the idregs array Date: Fri, 25 Oct 2024 12:17:23 +0200 Message-ID: <20241025101959.601048-5-eric.auger@redhat.com> In-Reply-To: <20241025101959.601048-1-eric.auger@redhat.com> References: <20241025101959.601048-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.263, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action Precedence: list Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org
Series	kvm/arm: Introduce a customizable aarch64 KVM host model \| expand [RFC,00/21] kvm/arm: Introduce a customizable aarch64 KVM host model [RFC,01/21] kvm: kvm_get_writable_id_regs [RFC,02/21] arm/cpu: Add sysreg definitions in cpu-sysegs.h [RFC,03/21] arm/cpu: Store aa64isar0 into the idregs arrays [RFC,04/21] arm/cpu: Store aa64isar1/2 into the idregs array [RFC,05/21] arm/cpu: Store aa64drf0/1 into the idregs array [RFC,06/21] arm/cpu: Store aa64mmfr0-3 into the idregs array [RFC,07/21] arm/cpu: Store aa64drf0/1 into the idregs array [RFC,08/21] arm/cpu: Store aa64smfr0 into the idregs array [RFC,09/21] arm/cpu: Store id_isar0-7 into the idregs array [RFC,10/21] arm/cpu: Store id_mfr0/1 into the idregs array [RFC,11/21] arm/cpu: Store id_dfr0/1 into the idregs array [RFC,12/21] arm/cpu: Store id_mmfr0-5 into the idregs array [RFC,13/21] arm/cpu: Add infra to handle generated ID register definitions [RFC,14/21] arm/cpu: Add sysreg generation scripts [RFC,15/21] arm/cpu: Add generated files [RFC,16/21] arm/kvm: Allow reading all the writable ID registers [RFC,17/21] arm/kvm: write back modified ID regs to KVM [RFC,18/21] arm/cpu: Introduce a customizable kvm host cpu model [RFC,19/21] virt: Allow custom vcpu model in arm virt [RFC,20/21] arm-qmp-cmds: introspection for custom model [RFC,21/21] arm/cpu-features: Document custom vcpu model

diff --git a/target/arm/cpu-features.h b/target/arm/cpu-features.h index 4eb29d205c..de571b520f 100644 --- a/target/arm/cpu-features.h +++ b/target/arm/cpu-features.h @@ -466,12 +466,12 @@ static inline bool isar_feature_aa64_tlbios(const ARMISARegisters *id) static inline bool isar_feature_aa64_jscvt(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, JSCVT) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, JSCVT) != 0; } static inline bool isar_feature_aa64_fcma(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, FCMA) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, FCMA) != 0; } /* @@ -495,9 +495,9 @@ isar_feature_pauth_feature(const ARMISARegisters *id) * Architecturally, only one of {APA,API,APA3} may be active (non-zero) * and the other two must be zero. Thus we may avoid conditionals. */ - return (FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, APA) | - FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, API) | - FIELD_EX64(id->id_aa64isar2, ID_AA64ISAR2, APA3)); + return (FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, APA) | + FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, API) | + FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR2, APA3)); } static inline bool isar_feature_aa64_pauth(const ARMISARegisters *id) @@ -515,7 +515,7 @@ static inline bool isar_feature_aa64_pauth_qarma5(const ARMISARegisters *id) * Return true if pauth is enabled with the architected QARMA5 algorithm. * QEMU will always enable or disable both APA and GPA. */ - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, APA) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, APA) != 0; } static inline bool isar_feature_aa64_pauth_qarma3(const ARMISARegisters *id) @@ -524,67 +524,67 @@ static inline bool isar_feature_aa64_pauth_qarma3(const ARMISARegisters *id) * Return true if pauth is enabled with the architected QARMA3 algorithm. * QEMU will always enable or disable both APA3 and GPA3. */ - return FIELD_EX64(id->id_aa64isar2, ID_AA64ISAR2, APA3) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR2, APA3) != 0; } static inline bool isar_feature_aa64_sb(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, SB) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, SB) != 0; } static inline bool isar_feature_aa64_predinv(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, SPECRES) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, SPECRES) != 0; } static inline bool isar_feature_aa64_frint(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, FRINTTS) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, FRINTTS) != 0; } static inline bool isar_feature_aa64_dcpop(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, DPB) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, DPB) != 0; } static inline bool isar_feature_aa64_dcpodp(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, DPB) >= 2; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, DPB) >= 2; } static inline bool isar_feature_aa64_bf16(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, BF16) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, BF16) != 0; } static inline bool isar_feature_aa64_rcpc_8_3(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, LRCPC) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, LRCPC) != 0; } static inline bool isar_feature_aa64_rcpc_8_4(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, LRCPC) >= 2; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, LRCPC) >= 2; } static inline bool isar_feature_aa64_i8mm(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, I8MM) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR1, I8MM) != 0; } static inline bool isar_feature_aa64_wfxt(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar2, ID_AA64ISAR2, WFXT) >= 2; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR2, WFXT) >= 2; } static inline bool isar_feature_aa64_hbc(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar2, ID_AA64ISAR2, BC) != 0; + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR2, BC) != 0; } static inline bool isar_feature_aa64_mops(const ARMISARegisters *id) { - return FIELD_EX64(id->id_aa64isar2, ID_AA64ISAR2, MOPS); + return FIELD_EX64_IDREG(&id->idregs, ID_AA64ISAR2, MOPS); } static inline bool isar_feature_aa64_fp_simd(const ARMISARegisters *id) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index aee8dfe439..87df224121 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -1082,8 +1082,6 @@ struct ArchCPU { uint32_t dbgdidr; uint32_t dbgdevid; uint32_t dbgdevid1; - uint64_t id_aa64isar1; - uint64_t id_aa64isar2; uint64_t id_aa64pfr0; uint64_t id_aa64pfr1; uint64_t id_aa64mmfr0; diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 9521eed586..a4b59b259c 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -2124,9 +2124,7 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) uint64_t t; uint32_t u; - t = cpu->isar.id_aa64isar1; - t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 0); - cpu->isar.id_aa64isar1 = t; + FIELD_DP64_IDREG(idregs, ID_AA64ISAR1, JSCVT, 0); t = cpu->isar.id_aa64pfr0; t = FIELD_DP64(t, ID_AA64PFR0, FP, 0xf); @@ -2179,11 +2177,11 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) t = FIELD_DP64(t, ID_AA64ISAR0, DP, 0); SET_IDREG(idregs, ID_AA64ISAR0, t); - t = cpu->isar.id_aa64isar1; + t = GET_IDREG(idregs, ID_AA64ISAR1); t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 0); t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 0); t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 0); - cpu->isar.id_aa64isar1 = t; + SET_IDREG(idregs, ID_AA64ISAR1, t); t = cpu->isar.id_aa64pfr0; t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 0xf); @@ -2219,7 +2217,6 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) } if (!cpu->has_neon && !cpu->has_vfp) { - uint64_t t; uint32_t u; FIELD_DP64_IDREG(idregs, ID_AA64ISAR0, FHM, 0); diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index 1451b3e1b3..d16c7487ac 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -479,6 +479,7 @@ void aarch64_add_sme_properties(Object *obj) void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp) { ARMPauthFeature features = cpu_isar_feature(pauth_feature, cpu); + IdRegMap *idregs = &cpu->isar.idregs; uint64_t isar1, isar2; /* @@ -489,13 +490,13 @@ void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp) * * Begin by disabling all fields. */ - isar1 = cpu->isar.id_aa64isar1; + isar1 = GET_IDREG(idregs, ID_AA64ISAR1); isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, APA, 0); isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, GPA, 0); isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, API, 0); isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, GPI, 0); - isar2 = cpu->isar.id_aa64isar2; + isar2 = GET_IDREG(idregs, ID_AA64ISAR2); isar2 = FIELD_DP64(isar2, ID_AA64ISAR2, APA3, 0); isar2 = FIELD_DP64(isar2, ID_AA64ISAR2, GPA3, 0); @@ -542,8 +543,8 @@ void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp) } } - cpu->isar.id_aa64isar1 = isar1; - cpu->isar.id_aa64isar2 = isar2; + SET_IDREG(idregs, ID_AA64ISAR1, isar1); + SET_IDREG(idregs, ID_AA64ISAR2, isar2); } static Property arm_cpu_pauth_property = diff --git a/target/arm/helper.c b/target/arm/helper.c index 8eae775d87..209b7c22b6 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -8960,12 +8960,12 @@ void register_cp_regs_for_features(ARMCPU *cpu) .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 1, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, - .resetvalue = cpu->isar.id_aa64isar1 }, + .resetvalue = GET_IDREG(idregs, ID_AA64ISAR1)}, { .name = "ID_AA64ISAR2_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 2, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, - .resetvalue = cpu->isar.id_aa64isar2 }, + .resetvalue = GET_IDREG(idregs, ID_AA64ISAR2)}, { .name = "ID_AA64ISAR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 3, .access = PL1_R, .type = ARM_CP_CONST, diff --git a/target/arm/kvm.c b/target/arm/kvm.c index 7a2087c195..c30dc53622 100644 --- a/target/arm/kvm.c +++ b/target/arm/kvm.c @@ -335,10 +335,8 @@ static bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64dfr1, ARM64_SYS_REG(3, 0, 0, 5, 1)); err |= get_host_cpu_reg64(fd, ahcf, SYS_ID_AA64ISAR0_EL1); - err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64isar1, - ARM64_SYS_REG(3, 0, 0, 6, 1)); - err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64isar2, - ARM64_SYS_REG(3, 0, 0, 6, 2)); + err |= get_host_cpu_reg64(fd, ahcf, SYS_ID_AA64ISAR1_EL1); + err |= get_host_cpu_reg64(fd, ahcf, SYS_ID_AA64ISAR2_EL1); err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64mmfr0, ARM64_SYS_REG(3, 0, 0, 7, 0)); err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64mmfr1, diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c index 1b25ca4382..7be63f21a1 100644 --- a/target/arm/tcg/cpu64.c +++ b/target/arm/tcg/cpu64.c @@ -94,7 +94,7 @@ static void aarch64_a35_initfn(Object *obj) cpu->isar.id_aa64dfr0 = 0x10305106; cpu->isar.id_aa64dfr1 = 0; SET_IDREG(idregs, ID_AA64ISAR0, 0x00011120); - cpu->isar.id_aa64isar1 = 0; + SET_IDREG(idregs, ID_AA64ISAR1, 0); cpu->isar.id_aa64mmfr0 = 0x00101122; cpu->isar.id_aa64mmfr1 = 0; cpu->clidr = 0x0a200023; @@ -247,7 +247,7 @@ static void aarch64_a55_initfn(Object *obj) cpu->dcz_blocksize = 4; /* 64 bytes */ cpu->isar.id_aa64dfr0 = 0x0000000010305408ull; SET_IDREG(idregs, ID_AA64ISAR0, 0x0000100010211120ull); - cpu->isar.id_aa64isar1 = 0x0000000000100001ull; + SET_IDREG(idregs, ID_AA64ISAR1, 0x0000000000100001ull); cpu->isar.id_aa64mmfr0 = 0x0000000000101122ull; cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull; cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull; @@ -374,7 +374,7 @@ static void aarch64_a76_initfn(Object *obj) cpu->dcz_blocksize = 4; cpu->isar.id_aa64dfr0 = 0x0000000010305408ull; SET_IDREG(idregs, ID_AA64ISAR0, 0x0000100010211120ull); - cpu->isar.id_aa64isar1 = 0x0000000000100001ull; + SET_IDREG(idregs, ID_AA64ISAR1, 0x0000000000100001ull); cpu->isar.id_aa64mmfr0 = 0x0000000000101122ull; cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull; cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull; @@ -451,7 +451,7 @@ static void aarch64_a64fx_initfn(Object *obj) cpu->isar.id_aa64mmfr1 = 0x0000000011212100; cpu->isar.id_aa64mmfr2 = 0x0000000000001011; SET_IDREG(idregs, ID_AA64ISAR0, 0x0000000010211120); - cpu->isar.id_aa64isar1 = 0x0000000000010001; + SET_IDREG(idregs, ID_AA64ISAR1, 0x0000000000010001); SET_IDREG(idregs, ID_AA64ZFR0, 0x0000000000000000); cpu->clidr = 0x0000000080000023; cpu->ccsidr[0] = 0x7007e01c; /* 64KB L1 dcache */ @@ -616,7 +616,7 @@ static void aarch64_neoverse_n1_initfn(Object *obj) cpu->dcz_blocksize = 4; cpu->isar.id_aa64dfr0 = 0x0000000110305408ull; SET_IDREG(idregs, ID_AA64ISAR0, 0x0000100010211120ull); - cpu->isar.id_aa64isar1 = 0x0000000000100001ull; + SET_IDREG(idregs, ID_AA64ISAR1, 0x0000000000100001ull); cpu->isar.id_aa64mmfr0 = 0x0000000000101125ull; cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull; cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull; @@ -692,7 +692,7 @@ static void aarch64_neoverse_v1_initfn(Object *obj) cpu->isar.id_aa64dfr0 = 0x000001f210305519ull; cpu->isar.id_aa64dfr1 = 0x00000000; SET_IDREG(idregs, ID_AA64ISAR0, 0x1011111110212120ull); /* with FEAT_RNG */ - cpu->isar.id_aa64isar1 = 0x0111000001211032ull; + SET_IDREG(idregs, ID_AA64ISAR1, 0x0111000001211032ull); cpu->isar.id_aa64mmfr0 = 0x0000000000101125ull; cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull; cpu->isar.id_aa64mmfr2 = 0x0220011102101011ull; @@ -938,7 +938,7 @@ static void aarch64_a710_initfn(Object *obj) cpu->id_aa64afr0 = 0; cpu->id_aa64afr1 = 0; SET_IDREG(idregs, ID_AA64ISAR0, 0x0221111110212120ull); /* with Crypto */ - cpu->isar.id_aa64isar1 = 0x0010111101211052ull; + SET_IDREG(idregs, ID_AA64ISAR1, 0x0010111101211052ull); cpu->isar.id_aa64mmfr0 = 0x0000022200101122ull; cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull; cpu->isar.id_aa64mmfr2 = 0x1221011110101011ull; @@ -1037,7 +1037,7 @@ static void aarch64_neoverse_n2_initfn(Object *obj) cpu->id_aa64afr0 = 0; cpu->id_aa64afr1 = 0; SET_IDREG(idregs, ID_AA64ISAR0, 0x1221111110212120ull); /* with Crypto and FEAT_RNG */ - cpu->isar.id_aa64isar1 = 0x0011111101211052ull; + SET_IDREG(idregs, ID_AA64ISAR1, 0x0011111101211052ull); cpu->isar.id_aa64mmfr0 = 0x0000022200101125ull; cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull; cpu->isar.id_aa64mmfr2 = 0x1221011112101011ull; @@ -1160,7 +1160,7 @@ void aarch64_max_tcg_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64ISAR0, RNDR, 1); /* FEAT_RNG */ SET_IDREG(idregs, ID_AA64ISAR0, t); - t = cpu->isar.id_aa64isar1; + t = GET_IDREG(idregs, ID_AA64ISAR1); t = FIELD_DP64(t, ID_AA64ISAR1, DPB, 2); /* FEAT_DPB2 */ t = FIELD_DP64(t, ID_AA64ISAR1, APA, PauthFeat_FPACCOMBINED); t = FIELD_DP64(t, ID_AA64ISAR1, API, 1); @@ -1173,13 +1173,13 @@ void aarch64_max_tcg_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 1); /* FEAT_BF16 */ t = FIELD_DP64(t, ID_AA64ISAR1, DGH, 1); /* FEAT_DGH */ t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 1); /* FEAT_I8MM */ - cpu->isar.id_aa64isar1 = t; + SET_IDREG(idregs, ID_AA64ISAR1, t); - t = cpu->isar.id_aa64isar2; + t = GET_IDREG(idregs, ID_AA64ISAR2); t = FIELD_DP64(t, ID_AA64ISAR2, MOPS, 1); /* FEAT_MOPS */ t = FIELD_DP64(t, ID_AA64ISAR2, BC, 1); /* FEAT_HBC */ t = FIELD_DP64(t, ID_AA64ISAR2, WFXT, 2); /* FEAT_WFxT */ - cpu->isar.id_aa64isar2 = t; + SET_IDREG(idregs, ID_AA64ISAR2, t); t = cpu->isar.id_aa64pfr0; t = FIELD_DP64(t, ID_AA64PFR0, FP, 1); /* FEAT_FP16 */

[RFC,04/21] arm/cpu: Store aa64isar1/2 into the idregs array

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