Use cpu_create(type) instead of cpu_init(cpu_model)

With all targets defining CPU_RESOLVING_TYPE, refactor
cpu_parse_cpu_model(type, cpu_model) to parse_cpu_model(cpu_model)
so that callers won't have to know internal resolving cpu
type. Place it in exec.c so it could be called from both
target independed vl.c and *-user/main.c.

That allows us to stop abusing cpu type from
  MachineClass::default_cpu_type
as resolver class in vl.c which were confusing part of
cpu_parse_cpu_model().

Also with new parse_cpu_model(), the last users of cpu_init()
in null-machine.c and bsd/linux-user targets could be switched
to cpu_create() API and cpu_init() API will be removed by
follow up patch.

With no longer users left remove MachineState::cpu_model field,
new code should use MachineState::cpu_type instead and
leave cpu_model parsing to generic code in vl.c.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1518000027-274608-5-git-send-email-imammedo@redhat.com>
[ehabkost: Fix bsd-user build error]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/linux-user/main.c b/linux-user/main.c
index 108e1f2..ba09b7d 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -45,6 +45,7 @@ static const char *argv0;
 static int gdbstub_port;
 static envlist_t *envlist;
 static const char *cpu_model;
+static const char *cpu_type;
 unsigned long mmap_min_addr;
 unsigned long guest_base;
 int have_guest_base;
@@ -4114,7 +4115,7 @@ void init_task_state(TaskState *ts)
 CPUArchState *cpu_copy(CPUArchState *env)
 {
     CPUState *cpu = ENV_GET_CPU(env);
-    CPUState *new_cpu = cpu_init(cpu_model);
+    CPUState *new_cpu = cpu_create(cpu_type);
     CPUArchState *new_env = new_cpu->env_ptr;
     CPUBreakpoint *bp;
     CPUWatchpoint *wp;
@@ -4597,10 +4598,13 @@ int main(int argc, char **argv, char **envp)
     if (cpu_model == NULL) {
         cpu_model = cpu_get_model(get_elf_eflags(execfd));
     }
+    cpu_type = parse_cpu_model(cpu_model);
+
     tcg_exec_init(0);
     /* NOTE: we need to init the CPU at this stage to get
        qemu_host_page_size */
-    cpu = cpu_init(cpu_model);
+
+    cpu = cpu_create(cpu_type);
     env = cpu->env_ptr;
     cpu_reset(cpu);