pseries: Enable HPT resizing for 2.10

We've now implemented a PAPR extensions which allows PAPR guests (i.e.
"pseries" machine type) to resize their hash page table during runtime.

However, that extension is only enabled if explicitly chosen on the
command line.  This patch enables it by default for spapr-2.10, but leaves
it disabled (by default) for older machine types.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index c0bc935c59352ae9fd39eb09c4d3e9402a9e5bab..3a925ef18ac73196e356dee0e30f02618e8a6831 100644 (file)
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3433,7 +3433,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)
     smc->dr_lmb_enabled = true;
     smc->tcg_default_cpu = "POWER8";
     mc->has_hotpluggable_cpus = true;
-    smc->resize_hpt_default = SPAPR_RESIZE_HPT_DISABLED;
+    smc->resize_hpt_default = SPAPR_RESIZE_HPT_ENABLED;
     fwc->get_dev_path = spapr_get_fw_dev_path;
     nc->nmi_monitor_handler = spapr_nmi;
     smc->phb_placement = spapr_phb_placement;
@@ -3540,6 +3540,7 @@ static void spapr_machine_2_9_class_options(MachineClass *mc)
     SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_9);
     mc->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
     smc->pre_2_10_has_unused_icps = true;
+    smc->resize_hpt_default = SPAPR_RESIZE_HPT_DISABLED;
 }
 
 DEFINE_SPAPR_MACHINE(2_9, "2.9", false);