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pc: use generic cpu_model parsing

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define default CPU type in generic way in pc_machine_class_init()
and let common machine code to handle cpu_model parsing

Patch also introduces TARGET_DEFAULT_CPU_TYPE define for 2 purposes:
* make foo_machine_class_init() look uniform on every target
* use define in [bsd|linux]-user targets to pick default
cpu type

Backports commit 311ca98d16bbb6a2a38b38ba898baa4a4d4ab9a7 from qemu
This commit is contained in:
Igor Mammedov 2018-03-20 13:21:58 -04:00 committed by Lioncash
parent 733d60e6d7
commit 20f67e8f9a
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
3 changed files with 10 additions and 37 deletions
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35
qemu/hw/i386/pc.c
View file

@ -119,41 +119,12 @@ static X86CPU *pc_new_cpu(struct uc_struct *uc, const char *typename, int64_t ap
int pc_cpus_init(struct uc_struct *uc, PCMachineState *pcms)
{
int i;
CPUClass *cc;
ObjectClass *oc;
const char *typename;
gchar **model_pieces;
Error *error = NULL;
MachineState *machine = MACHINE(uc, pcms);
MachineState *ms = MACHINE(uc, pcms);
/* init CPUs */
if (machine->cpu_model == NULL) {
#ifdef TARGET_X86_64
machine->cpu_model = "qemu64";
#else
machine->cpu_model = "qemu32";
#endif
}
model_pieces = g_strsplit(machine->cpu_model, ",", 2);
if (!model_pieces[0]) {
fprintf(stderr, "Invalid/empty CPU model name");
return -1;
}
oc = cpu_class_by_name(uc, TYPE_X86_CPU, model_pieces[0]);
if (oc == NULL) {
fprintf(stderr, "Unable to find CPU definition: %s", model_pieces[0]);
return -1;
}
typename = object_class_get_name(oc);
cc = CPU_CLASS(uc, oc);
cc->parse_features(uc, typename, model_pieces[1], &error_fatal);
g_strfreev(model_pieces);
for (i = 0; i < smp_cpus; i++) {
uc->cpu = (CPUState *)pc_new_cpu(uc, typename, x86_cpu_apic_id_from_index(i), &error);
uc->cpu = (CPUState *)pc_new_cpu(uc, ms->cpu_type, x86_cpu_apic_id_from_index(i), &error);
if (error) {
//error_report("%s", error_get_pretty(error));
error_free(error);
return -1;
}
@ -168,6 +139,8 @@ static void pc_machine_initfn(struct uc_struct *uc, Object *obj, void *opaque)
static void pc_machine_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(uc, oc);
mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
}
static const TypeInfo pc_machine_info = {

6
qemu/target/i386/cpu.c
View file

@ -910,12 +910,6 @@ void host_vendor_fms(char *vendor, int *family, int *model, int *stepping)
}
}
/* CPU class name definitions: */
#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
/* Return type name for a given CPU model name
* Caller is responsible for freeing the returned string.
*/

6
qemu/target/i386/cpu.h
View file

@ -1529,6 +1529,12 @@ uint64_t cpu_get_tsc(CPUX86State *env);
#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
#define CPU_RESOLVING_TYPE TYPE_X86_CPU
#ifdef TARGET_X86_64
#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu64")
#else
#define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu32")
#endif
#define cpu_signal_handler cpu_x86_signal_handler
#endif