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Diffstat (limited to 'target/arm/cpu64.c')
-rw-r--r--target/arm/cpu64.c59
1 files changed, 28 insertions, 31 deletions
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 89b2f4eaed..991d764674 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -228,38 +228,38 @@ static void aarch64_max_initfn(Object *obj)
kvm_arm_set_cpu_features_from_host(cpu);
} else {
aarch64_a57_initfn(obj);
- /* In future we might add feature bits here even if the
- * real-world A57 doesn't implement them.
+#ifdef CONFIG_USER_ONLY
+ /* We don't set these in system emulation mode for the moment,
+ * since we don't correctly set the ID registers to advertise them,
+ * and in some cases they're only available in AArch64 and not AArch32,
+ * whereas the architecture requires them to be present in both if
+ * present in either.
+ */
+ 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_AARCH64);
+ set_feature(&cpu->env, ARM_FEATURE_V8_AES);
+ set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
+ set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
+ set_feature(&cpu->env, ARM_FEATURE_V8_SHA512);
+ set_feature(&cpu->env, ARM_FEATURE_V8_SHA3);
+ set_feature(&cpu->env, ARM_FEATURE_V8_SM3);
+ set_feature(&cpu->env, ARM_FEATURE_V8_SM4);
+ set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
+ set_feature(&cpu->env, ARM_FEATURE_CRC);
+ set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
+ set_feature(&cpu->env, ARM_FEATURE_V8_FP16);
+ set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
+ /* 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
}
}
-#ifdef CONFIG_USER_ONLY
-static void aarch64_any_initfn(Object *obj)
-{
- ARMCPU *cpu = ARM_CPU(obj);
-
- 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_AARCH64);
- set_feature(&cpu->env, ARM_FEATURE_V8_AES);
- set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
- set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
- set_feature(&cpu->env, ARM_FEATURE_V8_SHA512);
- set_feature(&cpu->env, ARM_FEATURE_V8_SHA3);
- set_feature(&cpu->env, ARM_FEATURE_V8_SM3);
- set_feature(&cpu->env, ARM_FEATURE_V8_SM4);
- set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
- set_feature(&cpu->env, ARM_FEATURE_CRC);
- set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
- set_feature(&cpu->env, ARM_FEATURE_V8_FP16);
- set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
- cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
- cpu->dcz_blocksize = 7; /* 512 bytes */
-}
-#endif
-
typedef struct ARMCPUInfo {
const char *name;
void (*initfn)(Object *obj);
@@ -270,9 +270,6 @@ 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 },
-#ifdef CONFIG_USER_ONLY
- { .name = "any", .initfn = aarch64_any_initfn },
-#endif
{ .name = NULL }
};