s390x/cpumodel: register defined CPU models as subclasses

This patch adds the CPU model definitions that are known on s390x -
like z900, zBC12 or z13. For each definition, introduce two CPU models:

1. Base model (e.g. z13-base): Minimum feature set we expect to be around
   on all z13 systems. These models are migration-safe and will never
   change.
2. Flexible models (e.g. z13): Models that can change between QEMU versions
   and will be extended over time as we implement further features that
   are already part of such a model in real hardware of certain
   configurations.

We want to work on features using ordinary bitmap operations, however we
can't initialize a bitmap statically (unsigned long[] ...). Therefore we
store the generated feature lists in separate arrays and convert them to
proper bitmaps before registering all our CPU model classes.

Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <20160905085244.99980-9-dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/target-s390x/cpu_models.h b/target-s390x/cpu_models.h
new file mode 100644
index 0000000..0b87134
--- /dev/null
+++ b/target-s390x/cpu_models.h
@@ -0,0 +1,42 @@
+/*
+ * CPU models for s390x
+ *
+ * Copyright 2016 IBM Corp.
+ *
+ * Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
+ * your option) any later version. See the COPYING file in the top-level
+ * directory.
+ */
+
+#ifndef TARGET_S390X_CPU_MODELS_H
+#define TARGET_S390X_CPU_MODELS_H
+
+#include "cpu_features.h"
+#include "qom/cpu.h"
+
+/* static CPU definition */
+typedef struct S390CPUDef {
+    const char *name;       /* name exposed to the user */
+    const char *desc;       /* description exposed to the user */
+    uint8_t gen;            /* hw generation identification */
+    uint16_t type;          /* cpu type identification */
+    uint8_t ec_ga;          /* EC GA version (on which also the BC is based) */
+    uint8_t mha_pow;        /* Maximum Host Adress Power, mha = 2^pow-1 */
+    uint32_t hmfai;         /* hypervisor-managed facilities */
+    /* base/min features, must never be changed between QEMU versions */
+    S390FeatBitmap base_feat;
+    /* used to init base_feat from generated data */
+    S390FeatInit base_init;
+    /* deafault features, QEMU version specific */
+    S390FeatBitmap default_feat;
+    /* used to init default_feat from generated data */
+    S390FeatInit default_init;
+    /* max allowed features, QEMU version specific */
+    S390FeatBitmap full_feat;
+    /* used to init full_feat from generated data */
+    S390FeatInit full_init;
+} S390CPUDef;
+
+#endif /* TARGET_S390X_CPU_MODELS_H */