From: Claudio Fontana <cfontana@suse.de>
To: "Peter Maydell" <peter.maydell@linaro.org>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Alex Bennée" <alex.bennee@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Roman Bolshakov <r.bolshakov@yadro.com>,
Claudio Fontana <cfontana@suse.de>,
Eduardo Habkost <ehabkost@redhat.com>,
qemu-devel@nongnu.org
Subject: [RFC v11 53/55] XXX target/arm: experiment refactoring cpu "max"
Date: Tue, 23 Mar 2021 16:46:37 +0100 [thread overview]
Message-ID: <20210323154639.23477-46-cfontana@suse.de> (raw)
In-Reply-To: <20210323151749.21299-1-cfontana@suse.de>
XXX Someone who really understands which properties should be added
where should review this attentively.
What goes into cpu leaf class initialization?
What goes into arm_post_init / accel_cpu?
What goes into arm_cpu_finalize_features / aarch64_cpu_finalize_features?
Should there be shift of more code into finalize_features?
Signed-off-by: Claudio Fontana <cfontana@suse.de>
---
target/arm/cpu.h | 3 +
target/arm/cpu64.c | 167 ++---------------------
target/arm/kvm/kvm-cpu.c | 4 +-
target/arm/tcg/tcg-cpu-models.c | 62 +--------
target/arm/tcg/tcg-cpu.c | 228 +++++++++++++++++++++++++++++++-
5 files changed, 242 insertions(+), 222 deletions(-)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 99c03fd6b4..f3443ecb42 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -997,6 +997,9 @@ struct ARMCPU {
/* Generic timer counter frequency, in Hz */
uint64_t gt_cntfrq_hz;
+
+ /* MAX features requested via cpu="max" */
+ bool max_features;
};
unsigned int gt_cntfrq_period_ns(ARMCPU *cpu);
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index d67c0b1be4..bf2bd84ee7 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -247,169 +247,30 @@ static void aarch64_a72_initfn(Object *obj)
define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
}
-/* -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;
- * this only needs to handle 64 bits.
+/*
+ * -cpu max: if KVM is enabled, like -cpu host (best possible with this host),
+ * plus some "max"-only properties, see f.e. cpu_sve_add_props_max().
+ *
+ * if TCG is enabled, a CPU with as many features enabled as our
+ * emulation supports.
+ *
+ * The version of '-cpu max' for qemu-system-arm is defined in
+ * tcg/tcg-cpu-models.c, while this version only handles 64bit.
*/
static void aarch64_max_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
- if (kvm_enabled()) {
- kvm_arm_set_cpu_features_from_host(cpu);
- }
if (tcg_enabled()) {
- uint64_t t;
- uint32_t u;
aarch64_a57_initfn(obj);
-
- /*
- * Reset MIDR so the guest doesn't mistake our 'max' CPU type for a real
- * one and try to apply errata workarounds or use impdef features we
- * don't provide.
- * An IMPLEMENTER field of 0 means "reserved for software use";
- * ARCHITECTURE must be 0xf indicating "v7 or later, check ID registers
- * to see which features are present";
- * the VARIANT, PARTNUM and REVISION fields are all implementation
- * defined and we choose to define PARTNUM just in case guest
- * code needs to distinguish this QEMU CPU from other software
- * implementations, though this shouldn't be needed.
- */
- t = FIELD_DP64(0, MIDR_EL1, IMPLEMENTER, 0);
- t = FIELD_DP64(t, MIDR_EL1, ARCHITECTURE, 0xf);
- t = FIELD_DP64(t, MIDR_EL1, PARTNUM, 'Q');
- t = FIELD_DP64(t, MIDR_EL1, VARIANT, 0);
- t = FIELD_DP64(t, MIDR_EL1, REVISION, 0);
- cpu->midr = t;
-
- t = cpu->isar.id_aa64isar0;
- t = FIELD_DP64(t, ID_AA64ISAR0, AES, 2); /* AES + PMULL */
- t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 2); /* SHA512 */
- t = FIELD_DP64(t, ID_AA64ISAR0, CRC32, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2);
- t = FIELD_DP64(t, ID_AA64ISAR0, RDM, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, SHA3, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, SM3, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, SM4, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, DP, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, FHM, 1);
- t = FIELD_DP64(t, ID_AA64ISAR0, TS, 2); /* v8.5-CondM */
- t = FIELD_DP64(t, ID_AA64ISAR0, RNDR, 1);
- 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, 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 = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
- t = FIELD_DP64(t, ID_AA64PFR0, FP, 1);
- t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);
- t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1);
- t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1);
- cpu->isar.id_aa64pfr0 = t;
-
- t = cpu->isar.id_aa64pfr1;
- t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);
- t = FIELD_DP64(t, ID_AA64PFR1, SSBS, 2);
- /*
- * Begin with full support for MTE. This will be downgraded to MTE=0
- * during realize if the board provides no tag memory, much like
- * we do for EL2 with the virtualization=on property.
- */
- t = FIELD_DP64(t, ID_AA64PFR1, MTE, 2);
- cpu->isar.id_aa64pfr1 = t;
-
- t = cpu->isar.id_aa64mmfr0;
- t = FIELD_DP64(t, ID_AA64MMFR0, PARANGE, 5); /* PARange: 48 bits */
- cpu->isar.id_aa64mmfr0 = t;
-
- 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 */
- t = FIELD_DP64(t, ID_AA64MMFR1, XNX, 1); /* TTS2UXN */
- 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 */
- t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1); /* TTST */
- 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_ISAR5, SHA1, 1);
- u = FIELD_DP32(u, ID_ISAR5, SHA2, 1);
- u = FIELD_DP32(u, ID_ISAR5, CRC32, 1);
- u = FIELD_DP32(u, ID_ISAR5, RDM, 1);
- u = FIELD_DP32(u, ID_ISAR5, VCMA, 1);
- cpu->isar.id_isar5 = u;
-
- u = cpu->isar.id_isar6;
- u = FIELD_DP32(u, ID_ISAR6, JSCVT, 1);
- u = FIELD_DP32(u, ID_ISAR6, DP, 1);
- u = FIELD_DP32(u, ID_ISAR6, FHM, 1);
- u = FIELD_DP32(u, ID_ISAR6, SB, 1);
- u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
- cpu->isar.id_isar6 = u;
-
- u = cpu->isar.id_pfr0;
- u = FIELD_DP32(u, ID_PFR0, DIT, 1);
- cpu->isar.id_pfr0 = u;
-
- u = cpu->isar.id_pfr2;
- u = FIELD_DP32(u, ID_PFR2, SSBS, 1);
- cpu->isar.id_pfr2 = 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 */
- u = FIELD_DP32(u, ID_MMFR4, XNX, 1); /* TTS2UXN */
- cpu->isar.id_mmfr4 = u;
-
- t = cpu->isar.id_aa64dfr0;
- t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */
- cpu->isar.id_aa64dfr0 = t;
-
- u = cpu->isar.id_dfr0;
- u = FIELD_DP32(u, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
- cpu->isar.id_dfr0 = u;
-
- u = cpu->isar.mvfr1;
- u = FIELD_DP32(u, MVFR1, FPHP, 3); /* v8.2-FP16 */
- u = FIELD_DP32(u, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
- cpu->isar.mvfr1 = u;
-
-#ifdef CONFIG_USER_ONLY
- /* For usermode -cpu max we can use a larger and more efficient DCZ
- * blocksize since we don't have to follow what the hardware does.
- */
- cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
- cpu->dcz_blocksize = 7; /* 512 bytes */
-#endif
-
- cpu_pauth_add_props(obj);
}
-
+ if (kvm_enabled()) {
+ kvm_arm_set_cpu_features_from_host(cpu);
+ }
cpu_sve_add_props(obj);
cpu_sve_add_props_max(obj);
+
+ cpu->max_features = true;
}
static const ARMCPUInfo aarch64_cpus[] = {
diff --git a/target/arm/kvm/kvm-cpu.c b/target/arm/kvm/kvm-cpu.c
index 1ec31c03dd..020ef311c9 100644
--- a/target/arm/kvm/kvm-cpu.c
+++ b/target/arm/kvm/kvm-cpu.c
@@ -87,9 +87,7 @@ static void host_cpu_instance_init(Object *obj)
ARMCPU *cpu = ARM_CPU(obj);
kvm_arm_set_cpu_features_from_host(cpu);
- if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
- cpu_sve_add_props(obj);
- }
+ cpu_sve_add_props(obj);
arm_cpu_post_init(obj);
}
diff --git a/target/arm/tcg/tcg-cpu-models.c b/target/arm/tcg/tcg-cpu-models.c
index 5f3a2adc97..bbb8efa835 100644
--- a/target/arm/tcg/tcg-cpu-models.c
+++ b/target/arm/tcg/tcg-cpu-models.c
@@ -870,67 +870,7 @@ static void arm_max_initfn(Object *obj)
ARMCPU *cpu = ARM_CPU(obj);
cortex_a15_initfn(obj);
-
- /* old-style VFP short-vector support */
- cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1);
-
-#ifdef CONFIG_USER_ONLY
- /*
- * We don't set these in system emulation mode for the moment,
- * since we don't correctly set (all of) the ID registers to
- * advertise them.
- */
- set_feature(&cpu->env, ARM_FEATURE_V8);
- {
- uint32_t t;
-
- t = cpu->isar.id_isar5;
- t = FIELD_DP32(t, ID_ISAR5, AES, 2);
- t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
- t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
- t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
- t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
- t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
- cpu->isar.id_isar5 = t;
-
- t = cpu->isar.id_isar6;
- t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
- t = FIELD_DP32(t, ID_ISAR6, DP, 1);
- t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
- t = FIELD_DP32(t, ID_ISAR6, SB, 1);
- t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
- cpu->isar.id_isar6 = t;
-
- t = cpu->isar.mvfr1;
- t = FIELD_DP32(t, MVFR1, FPHP, 3); /* v8.2-FP16 */
- t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
- cpu->isar.mvfr1 = t;
-
- t = cpu->isar.mvfr2;
- t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
- t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
- cpu->isar.mvfr2 = t;
-
- t = cpu->isar.id_mmfr3;
- t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
- cpu->isar.id_mmfr3 = t;
-
- t = cpu->isar.id_mmfr4;
- t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
- t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
- t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
- t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
- cpu->isar.id_mmfr4 = t;
-
- t = cpu->isar.id_pfr0;
- t = FIELD_DP32(t, ID_PFR0, DIT, 1);
- cpu->isar.id_pfr0 = t;
-
- t = cpu->isar.id_pfr2;
- t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
- cpu->isar.id_pfr2 = t;
- }
-#endif /* CONFIG_USER_ONLY */
+ cpu->max_features = true;
}
#endif /* !TARGET_AARCH64 */
diff --git a/target/arm/tcg/tcg-cpu.c b/target/arm/tcg/tcg-cpu.c
index db677bc71c..ee634836e4 100644
--- a/target/arm/tcg/tcg-cpu.c
+++ b/target/arm/tcg/tcg-cpu.c
@@ -228,16 +228,234 @@ static struct TCGCPUOps arm_tcg_ops = {
#endif /* !CONFIG_USER_ONLY */
};
+#ifdef TARGET_AARCH64
+static void tcg_cpu_max_instance_init(CPUState *cs)
+{
+ uint64_t t;
+ uint32_t u;
+ Object *obj = OBJECT(cs);
+ ARMCPU *cpu = ARM_CPU(cs);
+
+ /*
+ * Reset MIDR so the guest doesn't mistake our 'max' CPU type for a real
+ * one and try to apply errata workarounds or use impdef features we
+ * don't provide.
+ * An IMPLEMENTER field of 0 means "reserved for software use";
+ * ARCHITECTURE must be 0xf indicating "v7 or later, check ID registers
+ * to see which features are present";
+ * the VARIANT, PARTNUM and REVISION fields are all implementation
+ * defined and we choose to define PARTNUM just in case guest
+ * code needs to distinguish this QEMU CPU from other software
+ * implementations, though this shouldn't be needed.
+ */
+ t = FIELD_DP64(0, MIDR_EL1, IMPLEMENTER, 0);
+ t = FIELD_DP64(t, MIDR_EL1, ARCHITECTURE, 0xf);
+ t = FIELD_DP64(t, MIDR_EL1, PARTNUM, 'Q');
+ t = FIELD_DP64(t, MIDR_EL1, VARIANT, 0);
+ t = FIELD_DP64(t, MIDR_EL1, REVISION, 0);
+ cpu->midr = t;
+
+ t = cpu->isar.id_aa64isar0;
+ t = FIELD_DP64(t, ID_AA64ISAR0, AES, 2); /* AES + PMULL */
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 2); /* SHA512 */
+ t = FIELD_DP64(t, ID_AA64ISAR0, CRC32, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2);
+ t = FIELD_DP64(t, ID_AA64ISAR0, RDM, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA3, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, SM3, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, SM4, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, DP, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, FHM, 1);
+ t = FIELD_DP64(t, ID_AA64ISAR0, TS, 2); /* v8.5-CondM */
+ t = FIELD_DP64(t, ID_AA64ISAR0, RNDR, 1);
+ 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, 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 = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
+ t = FIELD_DP64(t, ID_AA64PFR0, FP, 1);
+ t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);
+ t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1);
+ t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1);
+ cpu->isar.id_aa64pfr0 = t;
+
+ t = cpu->isar.id_aa64pfr1;
+ t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);
+ t = FIELD_DP64(t, ID_AA64PFR1, SSBS, 2);
+ /*
+ * Begin with full support for MTE. This will be downgraded to MTE=0
+ * during realize if the board provides no tag memory, much like
+ * we do for EL2 with the virtualization=on property.
+ */
+ t = FIELD_DP64(t, ID_AA64PFR1, MTE, 2);
+ cpu->isar.id_aa64pfr1 = t;
+
+ t = cpu->isar.id_aa64mmfr0;
+ t = FIELD_DP64(t, ID_AA64MMFR0, PARANGE, 5); /* PARange: 48 bits */
+ cpu->isar.id_aa64mmfr0 = t;
+
+ 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 */
+ t = FIELD_DP64(t, ID_AA64MMFR1, XNX, 1); /* TTS2UXN */
+ 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 */
+ t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1); /* TTST */
+ 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_ISAR5, SHA1, 1);
+ u = FIELD_DP32(u, ID_ISAR5, SHA2, 1);
+ u = FIELD_DP32(u, ID_ISAR5, CRC32, 1);
+ u = FIELD_DP32(u, ID_ISAR5, RDM, 1);
+ u = FIELD_DP32(u, ID_ISAR5, VCMA, 1);
+ cpu->isar.id_isar5 = u;
+
+ u = cpu->isar.id_isar6;
+ u = FIELD_DP32(u, ID_ISAR6, JSCVT, 1);
+ u = FIELD_DP32(u, ID_ISAR6, DP, 1);
+ u = FIELD_DP32(u, ID_ISAR6, FHM, 1);
+ u = FIELD_DP32(u, ID_ISAR6, SB, 1);
+ u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
+ cpu->isar.id_isar6 = u;
+
+ u = cpu->isar.id_pfr0;
+ u = FIELD_DP32(u, ID_PFR0, DIT, 1);
+ cpu->isar.id_pfr0 = u;
+
+ u = cpu->isar.id_pfr2;
+ u = FIELD_DP32(u, ID_PFR2, SSBS, 1);
+ cpu->isar.id_pfr2 = 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 */
+ u = FIELD_DP32(u, ID_MMFR4, XNX, 1); /* TTS2UXN */
+ cpu->isar.id_mmfr4 = u;
+
+ t = cpu->isar.id_aa64dfr0;
+ t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */
+ cpu->isar.id_aa64dfr0 = t;
+
+ u = cpu->isar.id_dfr0;
+ u = FIELD_DP32(u, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
+ cpu->isar.id_dfr0 = u;
+
+ u = cpu->isar.mvfr1;
+ u = FIELD_DP32(u, MVFR1, FPHP, 3); /* v8.2-FP16 */
+ u = FIELD_DP32(u, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
+ cpu->isar.mvfr1 = u;
+
+#ifdef CONFIG_USER_ONLY
+ /*
+ * For usermode -cpu max we can use a larger and more efficient DCZ
+ * blocksize since we don't have to follow what the hardware does.
+ */
+ cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
+ cpu->dcz_blocksize = 7; /* 512 bytes */
+#endif
+ cpu_pauth_add_props(obj);
+}
+
+#else /* !TARGET_AARCH64 */
+static void tcg_cpu_max_instance_init(CPUState *cs)
+{
+ ARMCPU *cpu = ARM_CPU(cs);
+
+ /* old-style VFP short-vector support */
+ cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1);
+
+#ifdef CONFIG_USER_ONLY
+ /*
+ * We don't set these in system emulation mode for the moment,
+ * since we don't correctly set (all of) the ID registers to
+ * advertise them.
+ */
+ set_feature(&cpu->env, ARM_FEATURE_V8);
+ {
+ uint32_t t;
+
+ t = cpu->isar.id_isar5;
+ t = FIELD_DP32(t, ID_ISAR5, AES, 2);
+ t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
+ t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
+ t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
+ t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
+ t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
+ cpu->isar.id_isar5 = t;
+
+ t = cpu->isar.id_isar6;
+ t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
+ t = FIELD_DP32(t, ID_ISAR6, DP, 1);
+ t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
+ t = FIELD_DP32(t, ID_ISAR6, SB, 1);
+ t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
+ cpu->isar.id_isar6 = t;
+
+ t = cpu->isar.mvfr1;
+ t = FIELD_DP32(t, MVFR1, FPHP, 3); /* v8.2-FP16 */
+ t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
+ cpu->isar.mvfr1 = t;
+
+ t = cpu->isar.mvfr2;
+ t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
+ t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
+ cpu->isar.mvfr2 = t;
+
+ t = cpu->isar.id_mmfr3;
+ t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
+ cpu->isar.id_mmfr3 = t;
+
+ t = cpu->isar.id_mmfr4;
+ t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
+ t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
+ t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
+ t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
+ cpu->isar.id_mmfr4 = t;
+
+ t = cpu->isar.id_pfr0;
+ t = FIELD_DP32(t, ID_PFR0, DIT, 1);
+ cpu->isar.id_pfr0 = t;
+
+ t = cpu->isar.id_pfr2;
+ t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
+ cpu->isar.id_pfr2 = t;
+ }
+#endif /* CONFIG_USER_ONLY */
+}
+#endif /* TARGET_AARCH64 */
+
static void tcg_cpu_instance_init(CPUState *cs)
{
ARMCPU *cpu = ARM_CPU(cs);
- /*
- * this would be the place to move TCG-specific props
- * in future refactoring of cpu properties.
- */
-
cpu->psci_version = 2; /* TCG implements PSCI 0.2 */
+ if (cpu->max_features) {
+ tcg_cpu_max_instance_init(cs);
+ }
}
static void tcg_cpu_reset(CPUState *cs)
--
2.26.2
next prev parent reply other threads:[~2021-03-23 16:34 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-23 15:16 [RFC v11 00/55] arm cleanup experiment for kvm-only build Claudio Fontana
2021-03-23 15:16 ` [RFC v11 01/55] target/arm: move translate modules to tcg/ Claudio Fontana
2021-03-23 15:16 ` [RFC v11 02/55] target/arm: move helpers " Claudio Fontana
2021-03-23 15:16 ` [RFC v11 03/55] arm: tcg: only build under CONFIG_TCG Claudio Fontana
2021-03-23 15:16 ` [RFC v11 04/55] target/arm: tcg: add sysemu and user subdirs Claudio Fontana
2021-03-24 18:06 ` Richard Henderson
2021-03-24 18:18 ` Richard Henderson
2021-03-24 18:21 ` Claudio Fontana
2021-03-23 15:16 ` [RFC v11 05/55] target/arm: tcg: split mte_helper user-only and sysemu code Claudio Fontana
2021-03-24 18:15 ` Richard Henderson
2021-03-23 15:17 ` [RFC v11 06/55] target/arm: tcg: move sysemu-only parts of debug_helper Claudio Fontana
2021-03-24 18:19 ` Richard Henderson
2021-03-23 15:17 ` [RFC v11 07/55] target/arm: tcg: split tlb_helper user-only and sysemu-only parts Claudio Fontana
2021-03-24 18:20 ` Richard Henderson
2021-03-23 15:45 ` [RFC v11 08/55] target/arm: tcg: split m_helper " Claudio Fontana
2021-03-24 18:21 ` Richard Henderson
2021-03-23 15:45 ` [RFC v11 09/55] target/arm: only build psci for TCG Claudio Fontana
2021-03-23 15:45 ` [RFC v11 10/55] target/arm: split off cpu-sysemu.c Claudio Fontana
2021-03-24 18:24 ` Richard Henderson
2021-03-23 15:45 ` [RFC v11 11/55] target/arm: move physical address translation to cpu-mmu Claudio Fontana
2021-03-24 18:31 ` Richard Henderson
2021-03-23 15:45 ` [RFC v11 12/55] target/arm: cpu-mmu: fix comment style Claudio Fontana
2021-03-24 18:32 ` Richard Henderson
2021-03-23 15:45 ` [RFC v11 13/55] target/arm: split cpregs from tcg/helper.c Claudio Fontana
2021-03-24 18:40 ` Richard Henderson
2021-03-23 15:45 ` [RFC v11 14/55] target/arm: cpregs: fix style (mostly just comments) Claudio Fontana
2021-03-24 18:40 ` Richard Henderson
2021-03-23 15:45 ` [RFC v11 15/55] target/arm: move cpu definitions to common cpu module Claudio Fontana
2021-03-24 18:42 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 16/55] target/arm: only perform TCG cpu and machine inits if TCG enabled Claudio Fontana
2021-03-24 18:44 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 17/55] target/arm: kvm: add stubs for some helpers Claudio Fontana
2021-03-24 18:46 ` Richard Henderson
2021-03-24 18:54 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 18/55] target/arm: move cpsr_read, cpsr_write to cpu_common Claudio Fontana
2021-03-24 18:47 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 19/55] target/arm: add temporary stub for arm_rebuild_hflags Claudio Fontana
2021-03-24 18:56 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 20/55] target/arm: split vfp state setting from tcg helpers Claudio Fontana
2021-03-24 20:29 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 21/55] target/arm: move arm_mmu_idx* to cpu-mmu Claudio Fontana
2021-03-24 20:31 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 22/55] target/arm: move sve_zcr_len_for_el to common_cpu Claudio Fontana
2021-03-24 22:03 ` Richard Henderson
2021-03-25 21:44 ` Claudio Fontana
2021-03-23 15:46 ` [RFC v11 23/55] target/arm: move arm_sctlr away from tcg helpers Claudio Fontana
2021-03-24 22:07 ` Richard Henderson
2021-03-25 14:26 ` Claudio Fontana
2021-03-23 15:46 ` [RFC v11 24/55] target/arm: move arm_cpu_list to common_cpu Claudio Fontana
2021-03-23 15:46 ` [RFC v11 25/55] target/arm: move aarch64_sync_32_to_64 (and vv) to cpu code Claudio Fontana
2021-03-24 22:11 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 26/55] target/arm: split a15 cpu model and 32bit class functions to cpu32.c Claudio Fontana
2021-03-24 22:17 ` Richard Henderson
2021-03-25 14:30 ` Claudio Fontana
2021-03-23 15:46 ` [RFC v11 27/55] target/arm: move sve_exception_el out of TCG helpers Claudio Fontana
2021-03-24 22:24 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 28/55] target/arm: refactor exception and cpu code Claudio Fontana
2021-03-24 22:29 ` Richard Henderson
2021-03-25 11:59 ` Claudio Fontana
2021-03-25 18:43 ` Richard Henderson
2021-03-25 18:50 ` Claudio Fontana
2021-03-23 15:46 ` [RFC v11 29/55] target/arm: cpu: fix style Claudio Fontana
2021-03-24 22:29 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 30/55] target/arm: wrap call to aarch64_sve_change_el in tcg_enabled() Claudio Fontana
2021-03-23 22:50 ` Alex Bennée
2021-03-24 8:29 ` Claudio Fontana
2021-03-24 11:41 ` Alex Bennée
2021-03-24 11:48 ` Alex Bennée
2021-03-24 14:34 ` Claudio Fontana
2021-03-24 16:30 ` Alex Bennée
2021-03-24 22:30 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 31/55] target/arm: remove kvm include file for PSCI and arm-powerctl Claudio Fontana
2021-03-24 22:30 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 32/55] target/arm: move kvm-const.h, kvm.c, kvm64.c, kvm_arm.h to kvm/ Claudio Fontana
2021-03-24 22:35 ` Richard Henderson
2021-03-25 15:14 ` Claudio Fontana
2021-03-23 15:46 ` [RFC v11 33/55] target/arm: cleanup cpu includes Claudio Fontana
2021-03-23 15:46 ` [RFC v11 34/55] target/arm: remove broad "else" statements when checking accels Claudio Fontana
2021-03-24 22:37 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 35/55] tests/qtest: skip bios-tables-test test_acpi_oem_fields_virt for KVM Claudio Fontana
2021-03-23 15:46 ` [RFC v11 36/55] tests: restrict TCG-only arm-cpu-features tests to TCG builds Claudio Fontana
2021-03-23 15:46 ` [RFC v11 37/55] tests: do not run test-hmp on all machines for ARM KVM-only Claudio Fontana
2021-03-23 15:46 ` [RFC v11 38/55] tests: device-introspect-test: cope with ARM TCG-only devices Claudio Fontana
2021-03-23 15:46 ` [RFC v11 39/55] tests: do not run qom-test on all machines for ARM KVM-only Claudio Fontana
2021-03-23 15:46 ` [RFC v11 40/55] Revert "target/arm: Restrict v8M IDAU to TCG" Claudio Fontana
2021-03-23 15:46 ` [RFC v11 41/55] target/arm: create kvm cpu accel class Claudio Fontana
2021-03-23 15:46 ` [RFC v11 42/55] target/arm: move kvm post init initialization to kvm cpu accel Claudio Fontana
2021-03-23 15:46 ` [RFC v11 43/55] target/arm: add tcg cpu accel class Claudio Fontana
2021-03-23 15:46 ` [RFC v11 44/55] target/arm: move TCG gt timer creation code in tcg/ Claudio Fontana
2021-03-23 15:46 ` [RFC v11 45/55] target/arm: cpu-sve: new module Claudio Fontana
2021-03-25 18:40 ` Richard Henderson
2021-03-25 18:48 ` Claudio Fontana
2021-03-26 13:35 ` Claudio Fontana
2021-03-23 15:46 ` [RFC v11 46/55] target/arm: cpu-sve: split TCG and KVM functionality Claudio Fontana
2021-03-25 18:44 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 47/55] target/arm: make is_aa64 and arm_el_is_aa64 a macro for !TARGET_AARCH64 Claudio Fontana
2021-03-25 19:03 ` Richard Henderson
2021-03-25 21:56 ` Claudio Fontana
2021-03-26 19:05 ` Claudio Fontana
2021-03-26 19:13 ` Claudio Fontana
2021-03-27 12:59 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 48/55] target/arm: arch_dump: restrict ELFCLASS64 to AArch64 Claudio Fontana
2021-03-25 19:05 ` Richard Henderson
2021-03-23 15:46 ` [RFC v11 49/55] target/arm: cpu-exceptions: new module Claudio Fontana
2021-03-23 15:46 ` [RFC v11 50/55] target/arm: tcg: restrict ZCR cpregs to TARGET_AARCH64 Claudio Fontana
2021-03-23 15:46 ` [RFC v11 51/55] target/arm: cpu-pauth: new module for ARMv8.3 Pointer Authentication Claudio Fontana
2021-03-23 15:46 ` [RFC v11 52/55] target/arm: refactor arm_cpu_finalize_features into cpu64 Claudio Fontana
2021-03-23 15:46 ` Claudio Fontana [this message]
2021-03-23 15:46 ` [RFC v11 54/55] target/arm: tcg: remove superfluous CONFIG_TCG check Claudio Fontana
2021-03-23 15:46 ` [RFC v11 55/55] target/arm: remove v7m stub function for !CONFIG_TCG Claudio Fontana
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