Move target-* CPU file into a target/ folder

We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 119 insertions, 0 deletions

diff --git a/target/s390x/cpu_models.h b/target/s390x/cpu_models.h
new file mode 100644
index 0000000000..136a602313
--- /dev/null
+++ b/target/s390x/cpu_models.h
@@ -0,0 +1,119 @@
+/*
+ * 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;
+
+/* CPU model based on a CPU definition */
+typedef struct S390CPUModel {
+    const S390CPUDef *def;
+    S390FeatBitmap features;
+    /* values copied from the "host" model, can change during migration */
+    uint16_t lowest_ibc;    /* lowest IBC that the hardware supports */
+    uint32_t cpu_id;        /* CPU id */
+    uint8_t cpu_ver;        /* CPU version, usually "ff" for kvm */
+} S390CPUModel;
+
+/*
+ * CPU ID
+ *
+ * bits 0-7: Zeroes (ff for kvm)
+ * bits 8-31: CPU ID (serial number)
+ * bits 32-48: Machine type
+ * bits 48-63: Zeroes
+ */
+#define cpuid_type(x)     (((x) >> 16) & 0xffff)
+#define cpuid_id(x)       (((x) >> 32) & 0xffffff)
+#define cpuid_ver(x)      (((x) >> 56) & 0xff)
+
+#define lowest_ibc(x)     (((uint32_t)(x) >> 16) & 0xfff)
+#define unblocked_ibc(x)  ((uint32_t)(x) & 0xfff)
+#define has_ibc(x)        (lowest_ibc(x) != 0)
+
+#define S390_GEN_Z10 0xa
+#define ibc_gen(x)        (x == 0 ? 0 : ((x >> 4) + S390_GEN_Z10))
+#define ibc_ec_ga(x)      (x & 0xf)
+
+uint32_t s390_get_hmfai(void);
+uint8_t s390_get_mha_pow(void);
+uint32_t s390_get_ibc_val(void);
+static inline uint16_t s390_ibc_from_cpu_model(const S390CPUModel *model)
+{
+    uint16_t ibc = 0;
+
+    if (model->def->gen >= S390_GEN_Z10) {
+        ibc = ((model->def->gen - S390_GEN_Z10) << 4) + model->def->ec_ga;
+    }
+    return ibc;
+}
+void s390_get_feat_block(S390FeatType type, uint8_t *data);
+bool s390_has_feat(S390Feat feat);
+uint8_t s390_get_gen_for_cpu_type(uint16_t type);
+static inline bool s390_known_cpu_type(uint16_t type)
+{
+    return s390_get_gen_for_cpu_type(type) != 0;
+}
+static inline uint64_t s390_cpuid_from_cpu_model(const S390CPUModel *model)
+{
+    return ((uint64_t)model->cpu_ver << 56) |
+           ((uint64_t)model->cpu_id << 32) |
+           ((uint64_t)model->def->type << 16);
+}
+S390CPUDef const *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga,
+                                    S390FeatBitmap features);
+
+#ifdef CONFIG_KVM
+bool kvm_s390_cpu_models_supported(void);
+void kvm_s390_get_host_cpu_model(S390CPUModel *model, Error **errp);
+void kvm_s390_apply_cpu_model(const S390CPUModel *model,  Error **errp);
+#else
+static inline void kvm_s390_get_host_cpu_model(S390CPUModel *model,
+                                               Error **errp)
+{
+}
+static inline void kvm_s390_apply_cpu_model(const S390CPUModel *model,
+                                            Error **errp)
+{
+}
+static inline bool kvm_s390_cpu_models_supported(void)
+{
+    return false;
+}
+#endif
+
+#endif /* TARGET_S390X_CPU_MODELS_H */