| /* |
| * QEMU AArch64 CPU |
| * |
| * Copyright (c) 2013 Linaro Ltd |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, see |
| * <http://www.gnu.org/licenses/gpl-2.0.html> |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qapi/error.h" |
| #include "cpu.h" |
| #include "cpregs.h" |
| #include "qemu/module.h" |
| #include "sysemu/kvm.h" |
| #include "sysemu/hvf.h" |
| #include "sysemu/qtest.h" |
| #include "sysemu/tcg.h" |
| #include "kvm_arm.h" |
| #include "hvf_arm.h" |
| #include "qapi/visitor.h" |
| #include "hw/qdev-properties.h" |
| #include "internals.h" |
| #include "cpu-features.h" |
| #include "cpregs.h" |
| |
| void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp) |
| { |
| /* |
| * If any vector lengths are explicitly enabled with sve<N> properties, |
| * then all other lengths are implicitly disabled. If sve-max-vq is |
| * specified then it is the same as explicitly enabling all lengths |
| * up to and including the specified maximum, which means all larger |
| * lengths will be implicitly disabled. If no sve<N> properties |
| * are enabled and sve-max-vq is not specified, then all lengths not |
| * explicitly disabled will be enabled. Additionally, all power-of-two |
| * vector lengths less than the maximum enabled length will be |
| * automatically enabled and all vector lengths larger than the largest |
| * disabled power-of-two vector length will be automatically disabled. |
| * Errors are generated if the user provided input that interferes with |
| * any of the above. Finally, if SVE is not disabled, then at least one |
| * vector length must be enabled. |
| */ |
| uint32_t vq_map = cpu->sve_vq.map; |
| uint32_t vq_init = cpu->sve_vq.init; |
| uint32_t vq_supported; |
| uint32_t vq_mask = 0; |
| uint32_t tmp, vq, max_vq = 0; |
| |
| /* |
| * CPU models specify a set of supported vector lengths which are |
| * enabled by default. Attempting to enable any vector length not set |
| * in the supported bitmap results in an error. When KVM is enabled we |
| * fetch the supported bitmap from the host. |
| */ |
| if (kvm_enabled()) { |
| if (kvm_arm_sve_supported()) { |
| cpu->sve_vq.supported = kvm_arm_sve_get_vls(cpu); |
| vq_supported = cpu->sve_vq.supported; |
| } else { |
| assert(!cpu_isar_feature(aa64_sve, cpu)); |
| vq_supported = 0; |
| } |
| } else { |
| vq_supported = cpu->sve_vq.supported; |
| } |
| |
| /* |
| * Process explicit sve<N> properties. |
| * From the properties, sve_vq_map<N> implies sve_vq_init<N>. |
| * Check first for any sve<N> enabled. |
| */ |
| if (vq_map != 0) { |
| max_vq = 32 - clz32(vq_map); |
| vq_mask = MAKE_64BIT_MASK(0, max_vq); |
| |
| if (cpu->sve_max_vq && max_vq > cpu->sve_max_vq) { |
| error_setg(errp, "cannot enable sve%d", max_vq * 128); |
| error_append_hint(errp, "sve%d is larger than the maximum vector " |
| "length, sve-max-vq=%d (%d bits)\n", |
| max_vq * 128, cpu->sve_max_vq, |
| cpu->sve_max_vq * 128); |
| return; |
| } |
| |
| if (kvm_enabled()) { |
| /* |
| * For KVM we have to automatically enable all supported uninitialized |
| * lengths, even when the smaller lengths are not all powers-of-two. |
| */ |
| vq_map |= vq_supported & ~vq_init & vq_mask; |
| } else { |
| /* Propagate enabled bits down through required powers-of-two. */ |
| vq_map |= SVE_VQ_POW2_MAP & ~vq_init & vq_mask; |
| } |
| } else if (cpu->sve_max_vq == 0) { |
| /* |
| * No explicit bits enabled, and no implicit bits from sve-max-vq. |
| */ |
| if (!cpu_isar_feature(aa64_sve, cpu)) { |
| /* |
| * SVE is disabled and so are all vector lengths. Good. |
| * Disable all SVE extensions as well. |
| */ |
| cpu->isar.id_aa64zfr0 = 0; |
| return; |
| } |
| |
| if (kvm_enabled()) { |
| /* Disabling a supported length disables all larger lengths. */ |
| tmp = vq_init & vq_supported; |
| } else { |
| /* Disabling a power-of-two disables all larger lengths. */ |
| tmp = vq_init & SVE_VQ_POW2_MAP; |
| } |
| vq = ctz32(tmp) + 1; |
| |
| max_vq = vq <= ARM_MAX_VQ ? vq - 1 : ARM_MAX_VQ; |
| vq_mask = max_vq > 0 ? MAKE_64BIT_MASK(0, max_vq) : 0; |
| vq_map = vq_supported & ~vq_init & vq_mask; |
| |
| if (vq_map == 0) { |
| error_setg(errp, "cannot disable sve%d", vq * 128); |
| error_append_hint(errp, "Disabling sve%d results in all " |
| "vector lengths being disabled.\n", |
| vq * 128); |
| error_append_hint(errp, "With SVE enabled, at least one " |
| "vector length must be enabled.\n"); |
| return; |
| } |
| |
| max_vq = 32 - clz32(vq_map); |
| vq_mask = MAKE_64BIT_MASK(0, max_vq); |
| } |
| |
| /* |
| * Process the sve-max-vq property. |
| * Note that we know from the above that no bit above |
| * sve-max-vq is currently set. |
| */ |
| if (cpu->sve_max_vq != 0) { |
| max_vq = cpu->sve_max_vq; |
| vq_mask = MAKE_64BIT_MASK(0, max_vq); |
| |
| if (vq_init & ~vq_map & (1 << (max_vq - 1))) { |
| error_setg(errp, "cannot disable sve%d", max_vq * 128); |
| error_append_hint(errp, "The maximum vector length must be " |
| "enabled, sve-max-vq=%d (%d bits)\n", |
| max_vq, max_vq * 128); |
| return; |
| } |
| |
| /* Set all bits not explicitly set within sve-max-vq. */ |
| vq_map |= ~vq_init & vq_mask; |
| } |
| |
| /* |
| * We should know what max-vq is now. Also, as we're done |
| * manipulating sve-vq-map, we ensure any bits above max-vq |
| * are clear, just in case anybody looks. |
| */ |
| assert(max_vq != 0); |
| assert(vq_mask != 0); |
| vq_map &= vq_mask; |
| |
| /* Ensure the set of lengths matches what is supported. */ |
| tmp = vq_map ^ (vq_supported & vq_mask); |
| if (tmp) { |
| vq = 32 - clz32(tmp); |
| if (vq_map & (1 << (vq - 1))) { |
| if (cpu->sve_max_vq) { |
| error_setg(errp, "cannot set sve-max-vq=%d", cpu->sve_max_vq); |
| error_append_hint(errp, "This CPU does not support " |
| "the vector length %d-bits.\n", vq * 128); |
| error_append_hint(errp, "It may not be possible to use " |
| "sve-max-vq with this CPU. Try " |
| "using only sve<N> properties.\n"); |
| } else { |
| error_setg(errp, "cannot enable sve%d", vq * 128); |
| if (vq_supported) { |
| error_append_hint(errp, "This CPU does not support " |
| "the vector length %d-bits.\n", vq * 128); |
| } else { |
| error_append_hint(errp, "SVE not supported by KVM " |
| "on this host\n"); |
| } |
| } |
| return; |
| } else { |
| if (kvm_enabled()) { |
| error_setg(errp, "cannot disable sve%d", vq * 128); |
| error_append_hint(errp, "The KVM host requires all " |
| "supported vector lengths smaller " |
| "than %d bits to also be enabled.\n", |
| max_vq * 128); |
| return; |
| } else { |
| /* Ensure all required powers-of-two are enabled. */ |
| tmp = SVE_VQ_POW2_MAP & vq_mask & ~vq_map; |
| if (tmp) { |
| vq = 32 - clz32(tmp); |
| error_setg(errp, "cannot disable sve%d", vq * 128); |
| error_append_hint(errp, "sve%d is required as it " |
| "is a power-of-two length smaller " |
| "than the maximum, sve%d\n", |
| vq * 128, max_vq * 128); |
| return; |
| } |
| } |
| } |
| } |
| |
| /* |
| * Now that we validated all our vector lengths, the only question |
| * left to answer is if we even want SVE at all. |
| */ |
| if (!cpu_isar_feature(aa64_sve, cpu)) { |
| error_setg(errp, "cannot enable sve%d", max_vq * 128); |
| error_append_hint(errp, "SVE must be enabled to enable vector " |
| "lengths.\n"); |
| error_append_hint(errp, "Add sve=on to the CPU property list.\n"); |
| return; |
| } |
| |
| /* From now on sve_max_vq is the actual maximum supported length. */ |
| cpu->sve_max_vq = max_vq; |
| cpu->sve_vq.map = vq_map; |
| } |
| |
| /* |
| * Note that cpu_arm_{get,set}_vq cannot use the simpler |
| * object_property_add_bool interface because they make use of the |
| * contents of "name" to determine which bit on which to operate. |
| */ |
| static void cpu_arm_get_vq(Object *obj, Visitor *v, const char *name, |
| void *opaque, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| ARMVQMap *vq_map = opaque; |
| uint32_t vq = atoi(&name[3]) / 128; |
| bool sve = vq_map == &cpu->sve_vq; |
| bool value; |
| |
| /* All vector lengths are disabled when feature is off. */ |
| if (sve |
| ? !cpu_isar_feature(aa64_sve, cpu) |
| : !cpu_isar_feature(aa64_sme, cpu)) { |
| value = false; |
| } else { |
| value = extract32(vq_map->map, vq - 1, 1); |
| } |
| visit_type_bool(v, name, &value, errp); |
| } |
| |
| static void cpu_arm_set_vq(Object *obj, Visitor *v, const char *name, |
| void *opaque, Error **errp) |
| { |
| ARMVQMap *vq_map = opaque; |
| uint32_t vq = atoi(&name[3]) / 128; |
| bool value; |
| |
| if (!visit_type_bool(v, name, &value, errp)) { |
| return; |
| } |
| |
| vq_map->map = deposit32(vq_map->map, vq - 1, 1, value); |
| vq_map->init |= 1 << (vq - 1); |
| } |
| |
| static bool cpu_arm_get_sve(Object *obj, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| return cpu_isar_feature(aa64_sve, cpu); |
| } |
| |
| static void cpu_arm_set_sve(Object *obj, bool value, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| uint64_t t; |
| |
| if (value && kvm_enabled() && !kvm_arm_sve_supported()) { |
| error_setg(errp, "'sve' feature not supported by KVM on this host"); |
| return; |
| } |
| |
| t = cpu->isar.id_aa64pfr0; |
| t = FIELD_DP64(t, ID_AA64PFR0, SVE, value); |
| cpu->isar.id_aa64pfr0 = t; |
| } |
| |
| void arm_cpu_sme_finalize(ARMCPU *cpu, Error **errp) |
| { |
| uint32_t vq_map = cpu->sme_vq.map; |
| uint32_t vq_init = cpu->sme_vq.init; |
| uint32_t vq_supported = cpu->sme_vq.supported; |
| uint32_t vq; |
| |
| if (vq_map == 0) { |
| if (!cpu_isar_feature(aa64_sme, cpu)) { |
| cpu->isar.id_aa64smfr0 = 0; |
| return; |
| } |
| |
| /* TODO: KVM will require limitations via SMCR_EL2. */ |
| vq_map = vq_supported & ~vq_init; |
| |
| if (vq_map == 0) { |
| vq = ctz32(vq_supported) + 1; |
| error_setg(errp, "cannot disable sme%d", vq * 128); |
| error_append_hint(errp, "All SME vector lengths are disabled.\n"); |
| error_append_hint(errp, "With SME enabled, at least one " |
| "vector length must be enabled.\n"); |
| return; |
| } |
| } else { |
| if (!cpu_isar_feature(aa64_sme, cpu)) { |
| vq = 32 - clz32(vq_map); |
| error_setg(errp, "cannot enable sme%d", vq * 128); |
| error_append_hint(errp, "SME must be enabled to enable " |
| "vector lengths.\n"); |
| error_append_hint(errp, "Add sme=on to the CPU property list.\n"); |
| return; |
| } |
| /* TODO: KVM will require limitations via SMCR_EL2. */ |
| } |
| |
| cpu->sme_vq.map = vq_map; |
| } |
| |
| static bool cpu_arm_get_sme(Object *obj, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| return cpu_isar_feature(aa64_sme, cpu); |
| } |
| |
| static void cpu_arm_set_sme(Object *obj, bool value, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| uint64_t t; |
| |
| t = cpu->isar.id_aa64pfr1; |
| t = FIELD_DP64(t, ID_AA64PFR1, SME, value); |
| cpu->isar.id_aa64pfr1 = t; |
| } |
| |
| static bool cpu_arm_get_sme_fa64(Object *obj, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| return cpu_isar_feature(aa64_sme, cpu) && |
| cpu_isar_feature(aa64_sme_fa64, cpu); |
| } |
| |
| static void cpu_arm_set_sme_fa64(Object *obj, bool value, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| uint64_t t; |
| |
| t = cpu->isar.id_aa64smfr0; |
| t = FIELD_DP64(t, ID_AA64SMFR0, FA64, value); |
| cpu->isar.id_aa64smfr0 = t; |
| } |
| |
| #ifdef CONFIG_USER_ONLY |
| /* Mirror linux /proc/sys/abi/{sve,sme}_default_vector_length. */ |
| static void cpu_arm_set_default_vec_len(Object *obj, Visitor *v, |
| const char *name, void *opaque, |
| Error **errp) |
| { |
| uint32_t *ptr_default_vq = opaque; |
| int32_t default_len, default_vq, remainder; |
| |
| if (!visit_type_int32(v, name, &default_len, errp)) { |
| return; |
| } |
| |
| /* Undocumented, but the kernel allows -1 to indicate "maximum". */ |
| if (default_len == -1) { |
| *ptr_default_vq = ARM_MAX_VQ; |
| return; |
| } |
| |
| default_vq = default_len / 16; |
| remainder = default_len % 16; |
| |
| /* |
| * Note that the 512 max comes from include/uapi/asm/sve_context.h |
| * and is the maximum architectural width of ZCR_ELx.LEN. |
| */ |
| if (remainder || default_vq < 1 || default_vq > 512) { |
| ARMCPU *cpu = ARM_CPU(obj); |
| const char *which = |
| (ptr_default_vq == &cpu->sve_default_vq ? "sve" : "sme"); |
| |
| error_setg(errp, "cannot set %s-default-vector-length", which); |
| if (remainder) { |
| error_append_hint(errp, "Vector length not a multiple of 16\n"); |
| } else if (default_vq < 1) { |
| error_append_hint(errp, "Vector length smaller than 16\n"); |
| } else { |
| error_append_hint(errp, "Vector length larger than %d\n", |
| 512 * 16); |
| } |
| return; |
| } |
| |
| *ptr_default_vq = default_vq; |
| } |
| |
| static void cpu_arm_get_default_vec_len(Object *obj, Visitor *v, |
| const char *name, void *opaque, |
| Error **errp) |
| { |
| uint32_t *ptr_default_vq = opaque; |
| int32_t value = *ptr_default_vq * 16; |
| |
| visit_type_int32(v, name, &value, errp); |
| } |
| #endif |
| |
| void aarch64_add_sve_properties(Object *obj) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| uint32_t vq; |
| |
| object_property_add_bool(obj, "sve", cpu_arm_get_sve, cpu_arm_set_sve); |
| |
| for (vq = 1; vq <= ARM_MAX_VQ; ++vq) { |
| char name[8]; |
| snprintf(name, sizeof(name), "sve%d", vq * 128); |
| object_property_add(obj, name, "bool", cpu_arm_get_vq, |
| cpu_arm_set_vq, NULL, &cpu->sve_vq); |
| } |
| |
| #ifdef CONFIG_USER_ONLY |
| /* Mirror linux /proc/sys/abi/sve_default_vector_length. */ |
| object_property_add(obj, "sve-default-vector-length", "int32", |
| cpu_arm_get_default_vec_len, |
| cpu_arm_set_default_vec_len, NULL, |
| &cpu->sve_default_vq); |
| #endif |
| } |
| |
| void aarch64_add_sme_properties(Object *obj) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| uint32_t vq; |
| |
| object_property_add_bool(obj, "sme", cpu_arm_get_sme, cpu_arm_set_sme); |
| object_property_add_bool(obj, "sme_fa64", cpu_arm_get_sme_fa64, |
| cpu_arm_set_sme_fa64); |
| |
| for (vq = 1; vq <= ARM_MAX_VQ; vq <<= 1) { |
| char name[8]; |
| snprintf(name, sizeof(name), "sme%d", vq * 128); |
| object_property_add(obj, name, "bool", cpu_arm_get_vq, |
| cpu_arm_set_vq, NULL, &cpu->sme_vq); |
| } |
| |
| #ifdef CONFIG_USER_ONLY |
| /* Mirror linux /proc/sys/abi/sme_default_vector_length. */ |
| object_property_add(obj, "sme-default-vector-length", "int32", |
| cpu_arm_get_default_vec_len, |
| cpu_arm_set_default_vec_len, NULL, |
| &cpu->sme_default_vq); |
| #endif |
| } |
| |
| void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp) |
| { |
| ARMPauthFeature features = cpu_isar_feature(pauth_feature, cpu); |
| uint64_t isar1, isar2; |
| |
| /* |
| * These properties enable or disable Pauth as a whole, or change |
| * the pauth algorithm, but do not change the set of features that |
| * are present. We have saved a copy of those features above and |
| * will now place it into the field that chooses the algorithm. |
| * |
| * Begin by disabling all fields. |
| */ |
| isar1 = cpu->isar.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 = FIELD_DP64(isar2, ID_AA64ISAR2, APA3, 0); |
| isar2 = FIELD_DP64(isar2, ID_AA64ISAR2, GPA3, 0); |
| |
| if (kvm_enabled() || hvf_enabled()) { |
| /* |
| * Exit early if PAuth is enabled and fall through to disable it. |
| * The algorithm selection properties are not present. |
| */ |
| if (cpu->prop_pauth) { |
| if (features == 0) { |
| error_setg(errp, "'pauth' feature not supported by " |
| "%s on this host", current_accel_name()); |
| } |
| return; |
| } |
| } else { |
| /* Pauth properties are only present when the model supports it. */ |
| if (features == 0) { |
| assert(!cpu->prop_pauth); |
| return; |
| } |
| |
| if (cpu->prop_pauth) { |
| if (cpu->prop_pauth_impdef && cpu->prop_pauth_qarma3) { |
| error_setg(errp, |
| "cannot enable both pauth-impdef and pauth-qarma3"); |
| return; |
| } |
| |
| if (cpu->prop_pauth_impdef) { |
| isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, API, features); |
| isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, GPI, 1); |
| } else if (cpu->prop_pauth_qarma3) { |
| isar2 = FIELD_DP64(isar2, ID_AA64ISAR2, APA3, features); |
| isar2 = FIELD_DP64(isar2, ID_AA64ISAR2, GPA3, 1); |
| } else { |
| isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, APA, features); |
| isar1 = FIELD_DP64(isar1, ID_AA64ISAR1, GPA, 1); |
| } |
| } else if (cpu->prop_pauth_impdef || cpu->prop_pauth_qarma3) { |
| error_setg(errp, "cannot enable pauth-impdef or " |
| "pauth-qarma3 without pauth"); |
| error_append_hint(errp, "Add pauth=on to the CPU property list.\n"); |
| } |
| } |
| |
| cpu->isar.id_aa64isar1 = isar1; |
| cpu->isar.id_aa64isar2 = isar2; |
| } |
| |
| static Property arm_cpu_pauth_property = |
| DEFINE_PROP_BOOL("pauth", ARMCPU, prop_pauth, true); |
| static Property arm_cpu_pauth_impdef_property = |
| DEFINE_PROP_BOOL("pauth-impdef", ARMCPU, prop_pauth_impdef, false); |
| static Property arm_cpu_pauth_qarma3_property = |
| DEFINE_PROP_BOOL("pauth-qarma3", ARMCPU, prop_pauth_qarma3, false); |
| |
| void aarch64_add_pauth_properties(Object *obj) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| |
| /* Default to PAUTH on, with the architected algorithm on TCG. */ |
| qdev_property_add_static(DEVICE(obj), &arm_cpu_pauth_property); |
| if (kvm_enabled() || hvf_enabled()) { |
| /* |
| * Mirror PAuth support from the probed sysregs back into the |
| * property for KVM or hvf. Is it just a bit backward? Yes it is! |
| * Note that prop_pauth is true whether the host CPU supports the |
| * architected QARMA5 algorithm or the IMPDEF one. We don't |
| * provide the separate pauth-impdef property for KVM or hvf, |
| * only for TCG. |
| */ |
| cpu->prop_pauth = cpu_isar_feature(aa64_pauth, cpu); |
| } else { |
| qdev_property_add_static(DEVICE(obj), &arm_cpu_pauth_impdef_property); |
| qdev_property_add_static(DEVICE(obj), &arm_cpu_pauth_qarma3_property); |
| } |
| } |
| |
| void arm_cpu_lpa2_finalize(ARMCPU *cpu, Error **errp) |
| { |
| uint64_t t; |
| |
| /* |
| * We only install the property for tcg -cpu max; this is the |
| * only situation in which the cpu field can be true. |
| */ |
| if (!cpu->prop_lpa2) { |
| return; |
| } |
| |
| t = cpu->isar.id_aa64mmfr0; |
| t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN16, 2); /* 16k pages w/ LPA2 */ |
| t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN4, 1); /* 4k pages w/ LPA2 */ |
| t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN16_2, 3); /* 16k stage2 w/ LPA2 */ |
| t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN4_2, 3); /* 4k stage2 w/ LPA2 */ |
| cpu->isar.id_aa64mmfr0 = t; |
| } |
| |
| static void aarch64_a57_initfn(Object *obj) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| |
| cpu->dtb_compatible = "arm,cortex-a57"; |
| set_feature(&cpu->env, ARM_FEATURE_V8); |
| set_feature(&cpu->env, ARM_FEATURE_NEON); |
| set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER); |
| set_feature(&cpu->env, ARM_FEATURE_BACKCOMPAT_CNTFRQ); |
| set_feature(&cpu->env, ARM_FEATURE_AARCH64); |
| set_feature(&cpu->env, ARM_FEATURE_CBAR_RO); |
| set_feature(&cpu->env, ARM_FEATURE_EL2); |
| set_feature(&cpu->env, ARM_FEATURE_EL3); |
| set_feature(&cpu->env, ARM_FEATURE_PMU); |
| cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A57; |
| cpu->midr = 0x411fd070; |
| cpu->revidr = 0x00000000; |
| cpu->reset_fpsid = 0x41034070; |
| cpu->isar.mvfr0 = 0x10110222; |
| cpu->isar.mvfr1 = 0x12111111; |
| cpu->isar.mvfr2 = 0x00000043; |
| cpu->ctr = 0x8444c004; |
| cpu->reset_sctlr = 0x00c50838; |
| cpu->isar.id_pfr0 = 0x00000131; |
| cpu->isar.id_pfr1 = 0x00011011; |
| cpu->isar.id_dfr0 = 0x03010066; |
| cpu->id_afr0 = 0x00000000; |
| cpu->isar.id_mmfr0 = 0x10101105; |
| cpu->isar.id_mmfr1 = 0x40000000; |
| cpu->isar.id_mmfr2 = 0x01260000; |
| cpu->isar.id_mmfr3 = 0x02102211; |
| cpu->isar.id_isar0 = 0x02101110; |
| cpu->isar.id_isar1 = 0x13112111; |
| cpu->isar.id_isar2 = 0x21232042; |
| cpu->isar.id_isar3 = 0x01112131; |
| cpu->isar.id_isar4 = 0x00011142; |
| cpu->isar.id_isar5 = 0x00011121; |
| cpu->isar.id_isar6 = 0; |
| cpu->isar.id_aa64pfr0 = 0x00002222; |
| cpu->isar.id_aa64dfr0 = 0x10305106; |
| cpu->isar.id_aa64isar0 = 0x00011120; |
| cpu->isar.id_aa64mmfr0 = 0x00001124; |
| cpu->isar.dbgdidr = 0x3516d000; |
| cpu->isar.dbgdevid = 0x01110f13; |
| cpu->isar.dbgdevid1 = 0x2; |
| cpu->isar.reset_pmcr_el0 = 0x41013000; |
| cpu->clidr = 0x0a200023; |
| cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */ |
| cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */ |
| cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */ |
| cpu->dcz_blocksize = 4; /* 64 bytes */ |
| cpu->gic_num_lrs = 4; |
| cpu->gic_vpribits = 5; |
| cpu->gic_vprebits = 5; |
| cpu->gic_pribits = 5; |
| define_cortex_a72_a57_a53_cp_reginfo(cpu); |
| } |
| |
| static void aarch64_a53_initfn(Object *obj) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| |
| cpu->dtb_compatible = "arm,cortex-a53"; |
| set_feature(&cpu->env, ARM_FEATURE_V8); |
| set_feature(&cpu->env, ARM_FEATURE_NEON); |
| set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER); |
| set_feature(&cpu->env, ARM_FEATURE_BACKCOMPAT_CNTFRQ); |
| set_feature(&cpu->env, ARM_FEATURE_AARCH64); |
| set_feature(&cpu->env, ARM_FEATURE_CBAR_RO); |
| set_feature(&cpu->env, ARM_FEATURE_EL2); |
| set_feature(&cpu->env, ARM_FEATURE_EL3); |
| set_feature(&cpu->env, ARM_FEATURE_PMU); |
| cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A53; |
| cpu->midr = 0x410fd034; |
| cpu->revidr = 0x00000100; |
| cpu->reset_fpsid = 0x41034070; |
| cpu->isar.mvfr0 = 0x10110222; |
| cpu->isar.mvfr1 = 0x12111111; |
| cpu->isar.mvfr2 = 0x00000043; |
| cpu->ctr = 0x84448004; /* L1Ip = VIPT */ |
| cpu->reset_sctlr = 0x00c50838; |
| cpu->isar.id_pfr0 = 0x00000131; |
| cpu->isar.id_pfr1 = 0x00011011; |
| cpu->isar.id_dfr0 = 0x03010066; |
| cpu->id_afr0 = 0x00000000; |
| cpu->isar.id_mmfr0 = 0x10101105; |
| cpu->isar.id_mmfr1 = 0x40000000; |
| cpu->isar.id_mmfr2 = 0x01260000; |
| cpu->isar.id_mmfr3 = 0x02102211; |
| cpu->isar.id_isar0 = 0x02101110; |
| cpu->isar.id_isar1 = 0x13112111; |
| cpu->isar.id_isar2 = 0x21232042; |
| cpu->isar.id_isar3 = 0x01112131; |
| cpu->isar.id_isar4 = 0x00011142; |
| cpu->isar.id_isar5 = 0x00011121; |
| cpu->isar.id_isar6 = 0; |
| cpu->isar.id_aa64pfr0 = 0x00002222; |
| cpu->isar.id_aa64dfr0 = 0x10305106; |
| cpu->isar.id_aa64isar0 = 0x00011120; |
| cpu->isar.id_aa64mmfr0 = 0x00001122; /* 40 bit physical addr */ |
| cpu->isar.dbgdidr = 0x3516d000; |
| cpu->isar.dbgdevid = 0x00110f13; |
| cpu->isar.dbgdevid1 = 0x1; |
| cpu->isar.reset_pmcr_el0 = 0x41033000; |
| cpu->clidr = 0x0a200023; |
| cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */ |
| cpu->ccsidr[1] = 0x201fe00a; /* 32KB L1 icache */ |
| cpu->ccsidr[2] = 0x707fe07a; /* 1024KB L2 cache */ |
| cpu->dcz_blocksize = 4; /* 64 bytes */ |
| cpu->gic_num_lrs = 4; |
| cpu->gic_vpribits = 5; |
| cpu->gic_vprebits = 5; |
| cpu->gic_pribits = 5; |
| define_cortex_a72_a57_a53_cp_reginfo(cpu); |
| } |
| |
| static void aarch64_host_initfn(Object *obj) |
| { |
| #if defined(CONFIG_KVM) |
| ARMCPU *cpu = ARM_CPU(obj); |
| kvm_arm_set_cpu_features_from_host(cpu); |
| if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { |
| aarch64_add_sve_properties(obj); |
| aarch64_add_pauth_properties(obj); |
| } |
| #elif defined(CONFIG_HVF) |
| ARMCPU *cpu = ARM_CPU(obj); |
| hvf_arm_set_cpu_features_from_host(cpu); |
| aarch64_add_pauth_properties(obj); |
| #else |
| g_assert_not_reached(); |
| #endif |
| } |
| |
| static void aarch64_max_initfn(Object *obj) |
| { |
| if (kvm_enabled() || hvf_enabled()) { |
| /* With KVM or HVF, '-cpu max' is identical to '-cpu host' */ |
| aarch64_host_initfn(obj); |
| return; |
| } |
| |
| if (tcg_enabled() || qtest_enabled()) { |
| aarch64_a57_initfn(obj); |
| } |
| |
| /* '-cpu max' for TCG: we currently do this as "A57 with extra things" */ |
| if (tcg_enabled()) { |
| aarch64_max_tcg_initfn(obj); |
| } |
| } |
| |
| static const ARMCPUInfo aarch64_cpus[] = { |
| { .name = "cortex-a57", .initfn = aarch64_a57_initfn }, |
| { .name = "cortex-a53", .initfn = aarch64_a53_initfn }, |
| { .name = "max", .initfn = aarch64_max_initfn }, |
| #if defined(CONFIG_KVM) || defined(CONFIG_HVF) |
| { .name = "host", .initfn = aarch64_host_initfn }, |
| #endif |
| }; |
| |
| static bool aarch64_cpu_get_aarch64(Object *obj, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| |
| return arm_feature(&cpu->env, ARM_FEATURE_AARCH64); |
| } |
| |
| static void aarch64_cpu_set_aarch64(Object *obj, bool value, Error **errp) |
| { |
| ARMCPU *cpu = ARM_CPU(obj); |
| |
| /* At this time, this property is only allowed if KVM is enabled. This |
| * restriction allows us to avoid fixing up functionality that assumes a |
| * uniform execution state like do_interrupt. |
| */ |
| if (value == false) { |
| if (!kvm_enabled() || !kvm_arm_aarch32_supported()) { |
| error_setg(errp, "'aarch64' feature cannot be disabled " |
| "unless KVM is enabled and 32-bit EL1 " |
| "is supported"); |
| return; |
| } |
| unset_feature(&cpu->env, ARM_FEATURE_AARCH64); |
| } else { |
| set_feature(&cpu->env, ARM_FEATURE_AARCH64); |
| } |
| } |
| |
| static void aarch64_cpu_finalizefn(Object *obj) |
| { |
| } |
| |
| static const gchar *aarch64_gdb_arch_name(CPUState *cs) |
| { |
| return "aarch64"; |
| } |
| |
| static void aarch64_cpu_class_init(ObjectClass *oc, void *data) |
| { |
| CPUClass *cc = CPU_CLASS(oc); |
| |
| cc->gdb_read_register = aarch64_cpu_gdb_read_register; |
| cc->gdb_write_register = aarch64_cpu_gdb_write_register; |
| cc->gdb_core_xml_file = "aarch64-core.xml"; |
| cc->gdb_arch_name = aarch64_gdb_arch_name; |
| |
| object_class_property_add_bool(oc, "aarch64", aarch64_cpu_get_aarch64, |
| aarch64_cpu_set_aarch64); |
| object_class_property_set_description(oc, "aarch64", |
| "Set on/off to enable/disable aarch64 " |
| "execution state "); |
| } |
| |
| static void aarch64_cpu_instance_init(Object *obj) |
| { |
| ARMCPUClass *acc = ARM_CPU_GET_CLASS(obj); |
| |
| acc->info->initfn(obj); |
| arm_cpu_post_init(obj); |
| } |
| |
| static void cpu_register_class_init(ObjectClass *oc, void *data) |
| { |
| ARMCPUClass *acc = ARM_CPU_CLASS(oc); |
| |
| acc->info = data; |
| } |
| |
| void aarch64_cpu_register(const ARMCPUInfo *info) |
| { |
| TypeInfo type_info = { |
| .parent = TYPE_AARCH64_CPU, |
| .instance_init = aarch64_cpu_instance_init, |
| .class_init = info->class_init ?: cpu_register_class_init, |
| .class_data = (void *)info, |
| }; |
| |
| type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name); |
| type_register(&type_info); |
| g_free((void *)type_info.name); |
| } |
| |
| static const TypeInfo aarch64_cpu_type_info = { |
| .name = TYPE_AARCH64_CPU, |
| .parent = TYPE_ARM_CPU, |
| .instance_finalize = aarch64_cpu_finalizefn, |
| .abstract = true, |
| .class_init = aarch64_cpu_class_init, |
| }; |
| |
| static void aarch64_cpu_register_types(void) |
| { |
| size_t i; |
| |
| type_register_static(&aarch64_cpu_type_info); |
| |
| for (i = 0; i < ARRAY_SIZE(aarch64_cpus); ++i) { |
| aarch64_cpu_register(&aarch64_cpus[i]); |
| } |
| } |
| |
| type_init(aarch64_cpu_register_types) |
