[Qemu-devel] [PATCH for-2.8 18/18] pc: q35: bump max_cpus to 288

[Igor Mammedov]

along with it for machine versions 2.6 and older keep
it at 255 and also freeze that limit at 255 for pc_piix4
machine as it won't be getting more than 255 CPUs.

Signed-off-by: Igor Mammedov <address@hidden>
---
v2:
 - make 288 cpus available only since q35-2.8 machine type
---
 hw/i386/pc.c      | 2 +-
 hw/i386/pc_piix.c | 1 +
 hw/i386/pc_q35.c  | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 2b5581a..8d8f1e4 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -2294,7 +2294,7 @@ static void pc_machine_class_init(ObjectClass *oc, void 
*data)
     mc->query_hotpluggable_cpus = pc_query_hotpluggable_cpus;
     mc->default_boot_order = "cad";
     mc->hot_add_cpu = pc_hot_add_cpu;
-    mc->max_cpus = 255;
+    mc->max_cpus = 288;
     mc->reset = pc_machine_reset;
     hc->pre_plug = pc_machine_device_pre_plug_cb;
     hc->plug = pc_machine_device_plug_cb;
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index d622ca8..a383727 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -431,6 +431,7 @@ static void pc_xen_hvm_init(MachineState *machine)
 
 static void pc_i440fx_machine_options(MachineClass *m)
 {
+    m->max_cpus = 255;
     m->family = "pc_piix";
     m->desc = "Standard PC (i440FX + PIIX, 1996)";
     m->hot_add_cpu = pc_hot_add_cpu;
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 9559b81..ef609c6 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -305,6 +305,7 @@ static void pc_q35_2_7_machine_options(MachineClass *m)
 {
     pc_q35_2_8_machine_options(m);
     m->alias = NULL;
+    m->max_cpus = 255;
     SET_MACHINE_COMPAT(m, PC_COMPAT_2_7);
 }
 
-- 
2.7.4