From: Cédric Le Goater <c...@kaod.org>
Activate only stop0 and stop1 levels. We should not need more levels
when under QEMU.
Signed-off-by: Cédric Le Goater <c...@kaod.org>
Message-Id: <20190307223548.20516-15-...@kaod.org>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
hw/ppc/pnv.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index e68d419203..8be4d4cbf7 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -438,6 +438,16 @@ static void pnv_dt_isa(PnvMachineState *pnv, void *fdt)
&args);
}
+static void pnv_dt_power_mgt(void *fdt)
+{
+ int off;
+
+ off = fdt_add_subnode(fdt, 0, "ibm,opal");
+ off = fdt_add_subnode(fdt, off, "power-mgt");
+
+ _FDT(fdt_setprop_cell(fdt, off, "ibm,enabled-stop-levels", 0xc0000000));
+}
+
static void *pnv_dt_create(MachineState *machine)
{
const char plat_compat[] = "qemu,powernv\0ibm,powernv";
@@ -493,6 +503,11 @@ static void *pnv_dt_create(MachineState *machine)
pnv_dt_bmc_sensors(pnv->bmc, fdt);
}
+ /* Create an extra node for power management on Power9 */
+ if (pnv_is_power9(pnv)) {
+ pnv_dt_power_mgt(fdt);
+ }
+
return fdt;
}
--
2.20.1
