smc91c111: Fix receive starvation

[qemu.git] / qom / cpu.c

diff --git a/qom/cpu.c b/qom/cpu.c
index 3dc8208a73fc0adf152fb182b4cc0719bf2675c8..818fb26dd48f4913301653ba9ff1a33f81b9d729 100644 (file)
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -18,36 +18,52 @@
  * <http://www.gnu.org/licenses/gpl-2.0.html>
  */
 
-#include "qom/cpu.h"
 #include "qemu-common.h"
+#include "qom/cpu.h"
 #include "sysemu/kvm.h"
 #include "qemu/notify.h"
+#include "qemu/log.h"
 #include "sysemu/sysemu.h"
 
-typedef struct CPUExistsArgs {
-    int64_t id;
-    bool found;
-} CPUExistsArgs;
-
-static void cpu_exist_cb(CPUState *cpu, void *data)
+bool cpu_exists(int64_t id)
 {
-    CPUClass *klass = CPU_GET_CLASS(cpu);
-    CPUExistsArgs *arg = data;
+    CPUState *cpu;
 
-    if (klass->get_arch_id(cpu) == arg->id) {
-        arg->found = true;
+    CPU_FOREACH(cpu) {
+        CPUClass *cc = CPU_GET_CLASS(cpu);
+
+        if (cc->get_arch_id(cpu) == id) {
+            return true;
+        }
     }
+    return false;
 }
 
-bool cpu_exists(int64_t id)
+bool cpu_paging_enabled(const CPUState *cpu)
 {
-    CPUExistsArgs data = {
-        .id = id,
-        .found = false,
-    };
+    CPUClass *cc = CPU_GET_CLASS(cpu);
 
-    qemu_for_each_cpu(cpu_exist_cb, &data);
-    return data.found;
+    return cc->get_paging_enabled(cpu);
+}
+
+static bool cpu_common_get_paging_enabled(const CPUState *cpu)
+{
+    return false;
+}
+
+void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
+                            Error **errp)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    return cc->get_memory_mapping(cpu, list, errp);
+}
+
+static void cpu_common_get_memory_mapping(CPUState *cpu,
+                                          MemoryMappingList *list,
+                                          Error **errp)
+{
+    error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
 }
 
 /* CPU hot-plug notifiers */
@@ -64,6 +80,103 @@ void cpu_reset_interrupt(CPUState *cpu, int mask)
     cpu->interrupt_request &= ~mask;
 }
 
+void cpu_exit(CPUState *cpu)
+{
+    cpu->exit_request = 1;
+    cpu->tcg_exit_req = 1;
+}
+
+int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
+                             void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    return (*cc->write_elf32_qemunote)(f, cpu, opaque);
+}
+
+static int cpu_common_write_elf32_qemunote(WriteCoreDumpFunction f,
+                                           CPUState *cpu, void *opaque)
+{
+    return -1;
+}
+
+int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
+                         int cpuid, void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    return (*cc->write_elf32_note)(f, cpu, cpuid, opaque);
+}
+
+static int cpu_common_write_elf32_note(WriteCoreDumpFunction f,
+                                       CPUState *cpu, int cpuid,
+                                       void *opaque)
+{
+    return -1;
+}
+
+int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
+                             void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    return (*cc->write_elf64_qemunote)(f, cpu, opaque);
+}
+
+static int cpu_common_write_elf64_qemunote(WriteCoreDumpFunction f,
+                                           CPUState *cpu, void *opaque)
+{
+    return -1;
+}
+
+int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
+                         int cpuid, void *opaque)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    return (*cc->write_elf64_note)(f, cpu, cpuid, opaque);
+}
+
+static int cpu_common_write_elf64_note(WriteCoreDumpFunction f,
+                                       CPUState *cpu, int cpuid,
+                                       void *opaque)
+{
+    return -1;
+}
+
+
+static int cpu_common_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg)
+{
+    return 0;
+}
+
+static int cpu_common_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg)
+{
+    return 0;
+}
+
+
+void cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
+                    int flags)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->dump_state) {
+        cpu_synchronize_state(cpu);
+        cc->dump_state(cpu, f, cpu_fprintf, flags);
+    }
+}
+
+void cpu_dump_statistics(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
+                         int flags)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->dump_statistics) {
+        cc->dump_statistics(cpu, f, cpu_fprintf, flags);
+    }
+}
+
 void cpu_reset(CPUState *cpu)
 {
     CPUClass *klass = CPU_GET_CLASS(cpu);
@@ -75,6 +188,13 @@ void cpu_reset(CPUState *cpu)
 
 static void cpu_common_reset(CPUState *cpu)
 {
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (qemu_loglevel_mask(CPU_LOG_RESET)) {
+        qemu_log("CPU Reset (CPU %d)\n", cpu->cpu_index);
+        log_cpu_state(cpu, cc->reset_dump_flags);
+    }
+
     cpu->exit_request = 0;
     cpu->interrupt_request = 0;
     cpu->current_tb = NULL;
@@ -104,6 +224,14 @@ static void cpu_common_realizefn(DeviceState *dev, Error **errp)
     }
 }
 
+static void cpu_common_initfn(Object *obj)
+{
+    CPUState *cpu = CPU(obj);
+    CPUClass *cc = CPU_GET_CLASS(obj);
+
+    cpu->gdb_num_regs = cpu->gdb_num_g_regs = cc->gdb_num_core_regs;
+}
+
 static int64_t cpu_common_get_arch_id(CPUState *cpu)
 {
     return cpu->cpu_index;
@@ -117,6 +245,14 @@ static void cpu_class_init(ObjectClass *klass, void *data)
     k->class_by_name = cpu_common_class_by_name;
     k->reset = cpu_common_reset;
     k->get_arch_id = cpu_common_get_arch_id;
+    k->get_paging_enabled = cpu_common_get_paging_enabled;
+    k->get_memory_mapping = cpu_common_get_memory_mapping;
+    k->write_elf32_qemunote = cpu_common_write_elf32_qemunote;
+    k->write_elf32_note = cpu_common_write_elf32_note;
+    k->write_elf64_qemunote = cpu_common_write_elf64_qemunote;
+    k->write_elf64_note = cpu_common_write_elf64_note;
+    k->gdb_read_register = cpu_common_gdb_read_register;
+    k->gdb_write_register = cpu_common_gdb_write_register;
     dc->realize = cpu_common_realizefn;
     dc->no_user = 1;
 }
@@ -125,6 +261,7 @@ static const TypeInfo cpu_type_info = {
     .name = TYPE_CPU,
     .parent = TYPE_DEVICE,
     .instance_size = sizeof(CPUState),
+    .instance_init = cpu_common_initfn,
     .abstract = true,
     .class_size = sizeof(CPUClass),
     .class_init = cpu_class_init,