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authorRobert Hoo <robert.hu@linux.intel.com>2020-09-22 15:14:14 +0800
committerEduardo Habkost <ehabkost@redhat.com>2020-10-14 15:28:54 -0400
commit61ad65d0f01d928b259effb57e2a356f3e3dac03 (patch)
treef541471b8d9ef792ec0b5a2e57aeaef5320c6ae2 /hw/core
parent31c707fb4d693068d3f0ab8aa7a1e07ddce5cdca (diff)
cpu: Introduce CPU model deprecation API
Implement the ability of marking some versions deprecated. When that CPU model is chosen, print a warning. The warning message can be customized, e.g. suggesting an alternative CPU model to be used instead. The deprecation message will be printed by x86_cpu_list_entry(), e.g. '-cpu help'. QMP command 'query-cpu-definitions' will return a bool value indicating the deprecation status. Signed-off-by: Robert Hoo <robert.hu@linux.intel.com> Message-Id: <1600758855-80046-1-git-send-email-robert.hu@linux.intel.com> [ehabkost: reword commit message] [ehabkost: Handle NULL cpu_type] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'hw/core')
-rw-r--r--hw/core/machine.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 7e2f4ec08e..d740a7e963 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -1087,6 +1087,8 @@ MemoryRegion *machine_consume_memdev(MachineState *machine,
void machine_run_board_init(MachineState *machine)
{
MachineClass *machine_class = MACHINE_GET_CLASS(machine);
+ ObjectClass *oc = object_class_by_name(machine->cpu_type);
+ CPUClass *cc;
if (machine->ram_memdev_id) {
Object *o;
@@ -1106,11 +1108,10 @@ void machine_run_board_init(MachineState *machine)
* specified a CPU with -cpu check here that the user CPU is supported.
*/
if (machine_class->valid_cpu_types && machine->cpu_type) {
- ObjectClass *class = object_class_by_name(machine->cpu_type);
int i;
for (i = 0; machine_class->valid_cpu_types[i]; i++) {
- if (object_class_dynamic_cast(class,
+ if (object_class_dynamic_cast(oc,
machine_class->valid_cpu_types[i])) {
/* The user specificed CPU is in the valid field, we are
* good to go.
@@ -1133,6 +1134,13 @@ void machine_run_board_init(MachineState *machine)
}
}
+ /* Check if CPU type is deprecated and warn if so */
+ cc = CPU_CLASS(oc);
+ if (cc && cc->deprecation_note) {
+ warn_report("CPU model %s is deprecated -- %s", machine->cpu_type,
+ cc->deprecation_note);
+ }
+
machine_class->init(machine);
}