cpu->dtb_compatible = "arm,cortex-a57";
set_feature(&cpu->env, ARM_FEATURE_V8);
- set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
cpu->reset_sctlr = 0x00c50838;
cpu->id_pfr0 = 0x00000131;
cpu->id_pfr1 = 0x00011011;
- cpu->id_dfr0 = 0x03010066;
+ cpu->isar.id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10101105;
- cpu->id_mmfr1 = 0x40000000;
- cpu->id_mmfr2 = 0x01260000;
- cpu->id_mmfr3 = 0x02102211;
+ 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_isar5 = 0x00011121;
cpu->isar.id_isar6 = 0;
cpu->isar.id_aa64pfr0 = 0x00002222;
- cpu->id_aa64dfr0 = 0x10305106;
+ cpu->isar.id_aa64dfr0 = 0x10305106;
cpu->isar.id_aa64isar0 = 0x00011120;
cpu->isar.id_aa64mmfr0 = 0x00001124;
- cpu->dbgdidr = 0x3516d000;
+ cpu->isar.dbgdidr = 0x3516d000;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
cpu->dtb_compatible = "arm,cortex-a53";
set_feature(&cpu->env, ARM_FEATURE_V8);
- set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
cpu->reset_sctlr = 0x00c50838;
cpu->id_pfr0 = 0x00000131;
cpu->id_pfr1 = 0x00011011;
- cpu->id_dfr0 = 0x03010066;
+ cpu->isar.id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10101105;
- cpu->id_mmfr1 = 0x40000000;
- cpu->id_mmfr2 = 0x01260000;
- cpu->id_mmfr3 = 0x02102211;
+ 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_isar5 = 0x00011121;
cpu->isar.id_isar6 = 0;
cpu->isar.id_aa64pfr0 = 0x00002222;
- cpu->id_aa64dfr0 = 0x10305106;
+ cpu->isar.id_aa64dfr0 = 0x10305106;
cpu->isar.id_aa64isar0 = 0x00011120;
cpu->isar.id_aa64mmfr0 = 0x00001122; /* 40 bit physical addr */
- cpu->dbgdidr = 0x3516d000;
+ cpu->isar.dbgdidr = 0x3516d000;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */
cpu->ccsidr[1] = 0x201fe00a; /* 32KB L1 icache */
cpu->dtb_compatible = "arm,cortex-a72";
set_feature(&cpu->env, ARM_FEATURE_V8);
- set_feature(&cpu->env, ARM_FEATURE_VFP4);
set_feature(&cpu->env, ARM_FEATURE_NEON);
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
cpu->reset_sctlr = 0x00c50838;
cpu->id_pfr0 = 0x00000131;
cpu->id_pfr1 = 0x00011011;
- cpu->id_dfr0 = 0x03010066;
+ cpu->isar.id_dfr0 = 0x03010066;
cpu->id_afr0 = 0x00000000;
- cpu->id_mmfr0 = 0x10201105;
- cpu->id_mmfr1 = 0x40000000;
- cpu->id_mmfr2 = 0x01260000;
- cpu->id_mmfr3 = 0x02102211;
+ cpu->isar.id_mmfr0 = 0x10201105;
+ 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_isar4 = 0x00011142;
cpu->isar.id_isar5 = 0x00011121;
cpu->isar.id_aa64pfr0 = 0x00002222;
- cpu->id_aa64dfr0 = 0x10305106;
+ cpu->isar.id_aa64dfr0 = 0x10305106;
cpu->isar.id_aa64isar0 = 0x00011120;
cpu->isar.id_aa64mmfr0 = 0x00001124;
- cpu->dbgdidr = 0x3516d000;
+ cpu->isar.dbgdidr = 0x3516d000;
cpu->clidr = 0x0a200023;
cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
* any of the above. Finally, if SVE is not disabled, then at least one
* vector length must be enabled.
*/
+ DECLARE_BITMAP(kvm_supported, ARM_MAX_VQ);
DECLARE_BITMAP(tmp, ARM_MAX_VQ);
uint32_t vq, max_vq = 0;
+ /* Collect the set of vector lengths supported by KVM. */
+ bitmap_zero(kvm_supported, ARM_MAX_VQ);
+ if (kvm_enabled() && kvm_arm_sve_supported(CPU(cpu))) {
+ kvm_arm_sve_get_vls(CPU(cpu), kvm_supported);
+ } else if (kvm_enabled()) {
+ assert(!cpu_isar_feature(aa64_sve, cpu));
+ }
+
/*
* Process explicit sve<N> properties.
* From the properties, sve_vq_map<N> implies sve_vq_init<N>.
return;
}
- /* Propagate enabled bits down through required powers-of-two. */
- for (vq = pow2floor(max_vq); vq >= 1; vq >>= 1) {
- if (!test_bit(vq - 1, cpu->sve_vq_init)) {
- set_bit(vq - 1, cpu->sve_vq_map);
+ if (kvm_enabled()) {
+ /*
+ * For KVM we have to automatically enable all supported unitialized
+ * lengths, even when the smaller lengths are not all powers-of-two.
+ */
+ bitmap_andnot(tmp, kvm_supported, cpu->sve_vq_init, max_vq);
+ bitmap_or(cpu->sve_vq_map, cpu->sve_vq_map, tmp, max_vq);
+ } else {
+ /* Propagate enabled bits down through required powers-of-two. */
+ for (vq = pow2floor(max_vq); vq >= 1; vq >>= 1) {
+ if (!test_bit(vq - 1, cpu->sve_vq_init)) {
+ set_bit(vq - 1, cpu->sve_vq_map);
+ }
}
}
} else if (cpu->sve_max_vq == 0) {
return;
}
- /* Disabling a power-of-two disables all larger lengths. */
- if (test_bit(0, cpu->sve_vq_init)) {
- error_setg(errp, "cannot disable sve128");
- error_append_hint(errp, "Disabling sve128 results in all vector "
- "lengths being disabled.\n");
- error_append_hint(errp, "With SVE enabled, at least one vector "
- "length must be enabled.\n");
- return;
- }
- for (vq = 2; vq <= ARM_MAX_VQ; vq <<= 1) {
- if (test_bit(vq - 1, cpu->sve_vq_init)) {
- break;
+ if (kvm_enabled()) {
+ /* Disabling a supported length disables all larger lengths. */
+ for (vq = 1; vq <= ARM_MAX_VQ; ++vq) {
+ if (test_bit(vq - 1, cpu->sve_vq_init) &&
+ test_bit(vq - 1, kvm_supported)) {
+ break;
+ }
+ }
+ max_vq = vq <= ARM_MAX_VQ ? vq - 1 : ARM_MAX_VQ;
+ bitmap_andnot(cpu->sve_vq_map, kvm_supported,
+ cpu->sve_vq_init, max_vq);
+ if (max_vq == 0 || bitmap_empty(cpu->sve_vq_map, max_vq)) {
+ 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;
+ }
+ } else {
+ /* Disabling a power-of-two disables all larger lengths. */
+ if (test_bit(0, cpu->sve_vq_init)) {
+ error_setg(errp, "cannot disable sve128");
+ error_append_hint(errp, "Disabling sve128 results in all "
+ "vector lengths being disabled.\n");
+ error_append_hint(errp, "With SVE enabled, at least one "
+ "vector length must be enabled.\n");
+ return;
}
+ for (vq = 2; vq <= ARM_MAX_VQ; vq <<= 1) {
+ if (test_bit(vq - 1, cpu->sve_vq_init)) {
+ break;
+ }
+ }
+ max_vq = vq <= ARM_MAX_VQ ? vq - 1 : ARM_MAX_VQ;
+ bitmap_complement(cpu->sve_vq_map, cpu->sve_vq_init, max_vq);
}
- max_vq = vq <= ARM_MAX_VQ ? vq - 1 : ARM_MAX_VQ;
- bitmap_complement(cpu->sve_vq_map, cpu->sve_vq_init, max_vq);
max_vq = find_last_bit(cpu->sve_vq_map, max_vq) + 1;
}
assert(max_vq != 0);
bitmap_clear(cpu->sve_vq_map, max_vq, ARM_MAX_VQ - max_vq);
- /* Ensure all required powers-of-two are enabled. */
- for (vq = pow2floor(max_vq); vq >= 1; vq >>= 1) {
- if (!test_bit(vq - 1, cpu->sve_vq_map)) {
- 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);
+ if (kvm_enabled()) {
+ /* Ensure the set of lengths matches what KVM supports. */
+ bitmap_xor(tmp, cpu->sve_vq_map, kvm_supported, max_vq);
+ if (!bitmap_empty(tmp, max_vq)) {
+ vq = find_last_bit(tmp, max_vq) + 1;
+ if (test_bit(vq - 1, cpu->sve_vq_map)) {
+ if (cpu->sve_max_vq) {
+ error_setg(errp, "cannot set sve-max-vq=%d",
+ cpu->sve_max_vq);
+ error_append_hint(errp, "This KVM host 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 KVM host. Try "
+ "using only sve<N> properties.\n");
+ } else {
+ error_setg(errp, "cannot enable sve%d", vq * 128);
+ error_append_hint(errp, "This KVM host does not support "
+ "the vector length %d-bits.\n",
+ vq * 128);
+ }
+ } else {
+ 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. */
+ for (vq = pow2floor(max_vq); vq >= 1; vq >>= 1) {
+ if (!test_bit(vq - 1, cpu->sve_vq_map)) {
+ 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;
+ }
+ }
}
/*
cpu->sve_max_vq = max_vq;
}
-uint32_t arm_cpu_vq_map_next_smaller(ARMCPU *cpu, uint32_t vq)
-{
- uint32_t bitnum;
-
- /*
- * We allow vq == ARM_MAX_VQ + 1 to be input because the caller may want
- * to find the maximum vq enabled, which may be ARM_MAX_VQ, but this
- * function always returns the next smaller than the input.
- */
- assert(vq && vq <= ARM_MAX_VQ + 1);
-
- bitnum = find_last_bit(cpu->sve_vq_map, vq - 1);
- return bitnum == vq - 1 ? 0 : bitnum + 1;
-}
-
static void cpu_max_get_sve_max_vq(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
{
ARMCPU *cpu = ARM_CPU(obj);
Error *err = NULL;
+ uint32_t max_vq;
- visit_type_uint32(v, name, &cpu->sve_max_vq, &err);
+ visit_type_uint32(v, name, &max_vq, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ if (kvm_enabled() && !kvm_arm_sve_supported(CPU(cpu))) {
+ error_setg(errp, "cannot set sve-max-vq");
+ error_append_hint(errp, "SVE not supported by KVM on this host\n");
+ return;
+ }
- if (!err && (cpu->sve_max_vq == 0 || cpu->sve_max_vq > ARM_MAX_VQ)) {
- error_setg(&err, "unsupported SVE vector length");
- error_append_hint(&err, "Valid sve-max-vq in range [1-%d]\n",
+ if (max_vq == 0 || max_vq > ARM_MAX_VQ) {
+ error_setg(errp, "unsupported SVE vector length");
+ error_append_hint(errp, "Valid sve-max-vq in range [1-%d]\n",
ARM_MAX_VQ);
+ return;
}
- error_propagate(errp, err);
+
+ cpu->sve_max_vq = max_vq;
}
static void cpu_arm_get_sve_vq(Object *obj, Visitor *v, const char *name,
return;
}
+ if (value && kvm_enabled() && !kvm_arm_sve_supported(CPU(cpu))) {
+ error_setg(errp, "cannot enable %s", name);
+ error_append_hint(errp, "SVE not supported by KVM on this host\n");
+ return;
+ }
+
if (value) {
set_bit(vq - 1, cpu->sve_vq_map);
} else {
return;
}
+ if (value && kvm_enabled() && !kvm_arm_sve_supported(CPU(cpu))) {
+ 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 aarch64_add_sve_properties(Object *obj)
+{
+ uint32_t vq;
+
+ object_property_add(obj, "sve", "bool", cpu_arm_get_sve,
+ cpu_arm_set_sve, NULL, NULL, &error_fatal);
+
+ for (vq = 1; vq <= ARM_MAX_VQ; ++vq) {
+ char name[8];
+ sprintf(name, "sve%d", vq * 128);
+ object_property_add(obj, name, "bool", cpu_arm_get_sve_vq,
+ cpu_arm_set_sve_vq, NULL, NULL, &error_fatal);
+ }
+}
+
/* -cpu max: if KVM is enabled, like -cpu host (best possible with this host);
* otherwise, a CPU with as many features enabled as our emulation supports.
* The version of '-cpu max' for qemu-system-arm is defined in cpu.c;
static void aarch64_max_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
- uint32_t vq;
if (kvm_enabled()) {
kvm_arm_set_cpu_features_from_host(cpu);
+ kvm_arm_add_vcpu_properties(obj);
} else {
uint64_t t;
uint32_t u;
cpu->isar.id_aa64isar0 = t;
t = cpu->isar.id_aa64isar1;
+ t = FIELD_DP64(t, ID_AA64ISAR1, DPB, 2);
t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, APA, 1); /* PAuth, architected only */
t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1);
t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR1, LRCPC, 2); /* ARMv8.4-RCPC */
cpu->isar.id_aa64isar1 = t;
t = cpu->isar.id_aa64pfr0;
t = cpu->isar.id_aa64mmfr1;
t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1); /* HPD */
t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1);
+ t = FIELD_DP64(t, ID_AA64MMFR1, VH, 1);
+ t = FIELD_DP64(t, ID_AA64MMFR1, PAN, 2); /* ATS1E1 */
+ t = FIELD_DP64(t, ID_AA64MMFR1, VMIDBITS, 2); /* VMID16 */
cpu->isar.id_aa64mmfr1 = t;
+ t = cpu->isar.id_aa64mmfr2;
+ t = FIELD_DP64(t, ID_AA64MMFR2, UAO, 1);
+ t = FIELD_DP64(t, ID_AA64MMFR2, CNP, 1); /* TTCNP */
+ cpu->isar.id_aa64mmfr2 = t;
+
/* Replicate the same data to the 32-bit id registers. */
u = cpu->isar.id_isar5;
u = FIELD_DP32(u, ID_ISAR5, AES, 2); /* AES + PMULL */
u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
cpu->isar.id_isar6 = u;
+ u = cpu->isar.id_mmfr3;
+ u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */
+ cpu->isar.id_mmfr3 = u;
+
+ u = cpu->isar.id_mmfr4;
+ u = FIELD_DP32(u, ID_MMFR4, HPDS, 1); /* AA32HPD */
+ u = FIELD_DP32(u, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
+ u = FIELD_DP32(u, ID_MMFR4, CNP, 1); /* TTCNP */
+ cpu->isar.id_mmfr4 = u;
+
+ u = cpu->isar.id_aa64dfr0;
+ u = FIELD_DP64(u, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */
+ cpu->isar.id_aa64dfr0 = u;
+
+ u = cpu->isar.id_dfr0;
+ u = FIELD_DP32(u, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
+ cpu->isar.id_dfr0 = u;
+
/*
* FIXME: We do not yet support ARMv8.2-fp16 for AArch32 yet,
* so do not set MVFR1.FPHP. Strictly speaking this is not legal,
cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
cpu->dcz_blocksize = 7; /* 512 bytes */
#endif
-
- object_property_add(obj, "sve-max-vq", "uint32", cpu_max_get_sve_max_vq,
- cpu_max_set_sve_max_vq, NULL, NULL, &error_fatal);
- object_property_add(obj, "sve", "bool", cpu_arm_get_sve,
- cpu_arm_set_sve, NULL, NULL, &error_fatal);
-
- for (vq = 1; vq <= ARM_MAX_VQ; ++vq) {
- char name[8];
- sprintf(name, "sve%d", vq * 128);
- object_property_add(obj, name, "bool", cpu_arm_get_sve_vq,
- cpu_arm_set_sve_vq, NULL, NULL, &error_fatal);
- }
}
-}
-struct ARMCPUInfo {
- const char *name;
- void (*initfn)(Object *obj);
- void (*class_init)(ObjectClass *oc, void *data);
-};
+ aarch64_add_sve_properties(obj);
+ object_property_add(obj, "sve-max-vq", "uint32", cpu_max_get_sve_max_vq,
+ cpu_max_set_sve_max_vq, NULL, NULL, &error_fatal);
+}
static const ARMCPUInfo aarch64_cpus[] = {
{ .name = "cortex-a57", .initfn = aarch64_a57_initfn },
acc->info = data;
}
-static void aarch64_cpu_register(const ARMCPUInfo *info)
+void aarch64_cpu_register(const ARMCPUInfo *info)
{
TypeInfo type_info = {
.parent = TYPE_AARCH64_CPU,
projects / qemu.git / blobdiff