[Qemu-devel] [PATCH 6/6] target/arm: Set ISAR bits for -cpu max

[Richard Henderson <richard.henderson@linaro.org>]

For the supported extensions, fill in the appropriate bits in
ID_ISAR5, ID_ISAR6, ID_AA64ISAR0, ID_AA64ISAR1.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/cpu.c   | 24 +++++++++++++++++-------
 target/arm/cpu64.c | 36 ++++++++++++++++++++++++++++--------
 2 files changed, 45 insertions(+), 15 deletions(-)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index de1a07a9f1..943c589445 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1795,19 +1795,29 @@ static void arm_max_initfn(Object *obj)
         kvm_arm_set_cpu_features_from_host(cpu);
     } else {
         cortex_a15_initfn(obj);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_AES);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 4, 4, 2);
+        set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 8, 4, 1);
+        set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 12, 4, 1);
+        set_feature(&cpu->env, ARM_FEATURE_CRC);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 16, 4, 1);
+        set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 24, 4, 1);
+        set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 28, 4, 1);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_DOTPROD);
+        cpu->id_isar6 = deposit32(cpu->id_isar6, 4, 4, 1);
+
 #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,
          */
         set_feature(&cpu->env, ARM_FEATURE_V8);
-        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_PMULL);
-        set_feature(&cpu->env, ARM_FEATURE_CRC);
-        set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
-        set_feature(&cpu->env, ARM_FEATURE_V8_DOTPROD);
-        set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
 #endif
     }
 }
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index d0581d59d8..b24fee45e3 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -230,6 +230,34 @@ static void aarch64_max_initfn(Object *obj)
         kvm_arm_set_cpu_features_from_host(cpu);
     } else {
         aarch64_a57_initfn(obj);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_SHA512);
+        cpu->id_aa64isar0 = deposit64(cpu->id_aa64isar0, 12, 4, 2);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_ATOMICS);
+        cpu->id_aa64isar0 = deposit64(cpu->id_aa64isar0, 20, 4, 2);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
+        cpu->id_aa64isar0 = deposit64(cpu->id_aa64isar0, 28, 4, 1);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 24, 4, 1);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_SHA3);
+        cpu->id_aa64isar0 = deposit64(cpu->id_aa64isar0, 32, 4, 1);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_SM3);
+        cpu->id_aa64isar0 = deposit64(cpu->id_aa64isar0, 36, 4, 1);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_SM4);
+        cpu->id_aa64isar0 = deposit64(cpu->id_aa64isar0, 40, 4, 1);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_DOTPROD);
+        cpu->id_aa64isar0 = deposit64(cpu->id_aa64isar0, 44, 4, 1);
+        cpu->id_isar6 = deposit32(cpu->id_isar6, 4, 4, 1);
+
+        set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
+        cpu->id_aa64isar1 = deposit64(cpu->id_aa64isar1, 16, 4, 1);
+        cpu->id_isar5 = deposit32(cpu->id_isar5, 28, 4, 1);
+
 #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,
@@ -237,15 +265,7 @@ static void aarch64_max_initfn(Object *obj)
          * whereas the architecture requires them to be present in both if
          * present in either.
          */
-        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_ATOMICS);
-        set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
-        set_feature(&cpu->env, ARM_FEATURE_V8_DOTPROD);
         set_feature(&cpu->env, ARM_FEATURE_V8_FP16);
-        set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
         set_feature(&cpu->env, ARM_FEATURE_SVE);
         /* 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.
-- 
2.17.1