On Mon, 2016-12-12 at 15:06 +1100, David Gibson wrote:
> 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-2.9, but
> leaves
> it disabled (by default) for older machine types.
>
> Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
> Reviewed-by: Laurent Vivier <lviv...@redhat.com>
> ---
> hw/ppc/spapr.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index d057031..f05d0e5 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -2779,7 +2779,7 @@ static void
> spapr_machine_class_init(ObjectClass *oc, void *data)
>
> smc->dr_lmb_enabled = true;
> smc->tcg_default_cpu = "POWER8";
> - smc->resize_hpt_default = SPAPR_RESIZE_HPT_DISABLED;
> + smc->resize_hpt_default = SPAPR_RESIZE_HPT_ENABLED;
> mc->query_hotpluggable_cpus = spapr_query_hotpluggable_cpus;
> fwc->get_dev_path = spapr_get_fw_dev_path;
> nc->nmi_monitor_handler = spapr_nmi;
> @@ -2860,8 +2860,11 @@ static void
> spapr_machine_2_8_instance_options(MachineState *machine)
>
> static void spapr_machine_2_8_class_options(MachineClass *mc)
> {
> + sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
> +
> spapr_machine_2_9_class_options(mc);
> SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_8);
> + smc->resize_hpt_default = SPAPR_RESIZE_HPT_DISABLED;
> }
>
> DEFINE_SPAPR_MACHINE(2_8, "2.8", false);
If people don't want this by default they should probably specify on
the command line.
Reviewed-by: Suraj Jitindar Singh <sjitindarsi...@gmail.com>
