ppc/pnv: Introduce Power11 PowerNV machine

The Powernv11 machine doesn't have XIVE & PHBs as of now

XIVE2 interface and PHB5 added in later patches to Powernv11 machine

Also add mention of Power11 to powernv documentation

Note: A difference from P10's and P11's machine_class_init is, in P11
different number of PHBs cannot be used on the command line, ie. the
following line does NOT exist in pnv_machine_power11_class_init, which
existed in case of Power10:

    machine_class_allow_dynamic_sysbus_dev(mc, TYPE_PNV_PHB);

Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Aditya Gupta <adityag@linux.ibm.com>
Tested-by: Amit Machhiwal <amachhiw@linux.ibm.com>
Tested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Link: https://lore.kernel.org/r/20250925173049.891406-3-adityag@linux.ibm.com
Message-ID: <20250925173049.891406-3-adityag@linux.ibm.com>

2 files changed, 39 insertions, 4 deletions

diff --git a/docs/system/ppc/powernv.rst b/docs/system/ppc/powernv.rst
index f3ec2cc69c..5154794cc8 100644
--- a/docs/system/ppc/powernv.rst
+++ b/docs/system/ppc/powernv.rst
@@ -1,5 +1,5 @@
-PowerNV family boards (``powernv8``, ``powernv9``, ``powernv10``)
-==================================================================
+PowerNV family boards (``powernv8``, ``powernv9``, ``powernv10``, ``powernv11``)
+================================================================================
 
 PowerNV (as Non-Virtualized) is the "bare metal" platform using the
 OPAL firmware. It runs Linux on IBM and OpenPOWER systems and it can
@@ -15,11 +15,12 @@ beyond the scope of what QEMU addresses today.
 Supported devices
 -----------------
 
- * Multi processor support for POWER8, POWER8NVL and POWER9.
+ * Multi processor support for POWER8, POWER8NVL, POWER9, Power10 and Power11.
  * XSCOM, serial communication sideband bus to configure chiplets.
  * Simple LPC Controller.
  * Processor Service Interface (PSI) Controller.
- * Interrupt Controller, XICS (POWER8) and XIVE (POWER9) and XIVE2 (Power10).
+ * Interrupt Controller, XICS (POWER8) and XIVE (POWER9) and XIVE2 (Power10 &
+   Power11).
  * POWER8 PHB3 PCIe Host bridge and POWER9 PHB4 PCIe Host bridge.
  * Simple OCC is an on-chip micro-controller used for power management tasks.
  * iBT device to handle BMC communication, with the internal BMC simulator
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 77136091bb..423954ba7e 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -3235,6 +3235,35 @@ static void pnv_machine_p10_rainier_class_init(ObjectClass *oc,
     pmc->i2c_init = pnv_rainier_i2c_init;
 }
 
+static void pnv_machine_power11_class_init(ObjectClass *oc, const void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    PnvMachineClass *pmc = PNV_MACHINE_CLASS(oc);
+    static const char compat[] = "qemu,powernv11\0ibm,powernv";
+
+    pmc->compat = compat;
+    pmc->compat_size = sizeof(compat);
+    pmc->max_smt_threads = 4;
+    pmc->has_lpar_per_thread = true;
+    pmc->quirk_tb_big_core = true;
+    pmc->dt_power_mgt = pnv_dt_power_mgt;
+
+    mc->desc = "IBM PowerNV (Non-Virtualized) Power11";
+    mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power11_v2.0");
+
+    object_class_property_add_bool(oc, "big-core",
+                                   pnv_machine_get_big_core,
+                                   pnv_machine_set_big_core);
+    object_class_property_set_description(oc, "big-core",
+                              "Use big-core (aka fused-core) mode");
+
+    object_class_property_add_bool(oc, "lpar-per-core",
+                                   pnv_machine_get_lpar_per_core,
+                                   pnv_machine_set_lpar_per_core);
+    object_class_property_set_description(oc, "lpar-per-core",
+                              "Use 1 LPAR per core mode");
+}
+
 static void pnv_cpu_do_nmi_on_cpu(CPUState *cs, run_on_cpu_data arg)
 {
     CPUPPCState *env = cpu_env(cs);
@@ -3349,6 +3378,11 @@ static void pnv_machine_class_init(ObjectClass *oc, const void *data)
 
 static const TypeInfo types[] = {
     {
+        .name          = MACHINE_TYPE_NAME("powernv11"),
+        .parent        = TYPE_PNV_MACHINE,
+        .class_init    = pnv_machine_power11_class_init,
+    },
+    {
         .name          = MACHINE_TYPE_NAME("powernv10-rainier"),
         .parent        = MACHINE_TYPE_NAME("powernv10"),
         .class_init    = pnv_machine_p10_rainier_class_init,