[Qemu-devel] [PULL 17/21] pseries: Enable HPT resizing for 2.10

David Gibson posted 21 patches 8 years, 6 months ago
[Qemu-devel] [PULL 17/21] pseries: Enable HPT resizing for 2.10
Posted by David Gibson 8 years, 6 months ago
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>
---
 hw/ppc/spapr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index c0bc935c59..3a925ef18a 100644
--- 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);
-- 
2.13.3