Remove the pseries-4.2 machine specific logic as had been deprecated and
due for removal now as per policy.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 include/hw/ppc/spapr.h |  1 -
 hw/ppc/spapr.c         | 27 ---------------------------
 2 files changed, 28 deletions(-)

diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 96ee868e88..a9cf8677ac 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -144,7 +144,6 @@ struct SpaprMachineClass {
 
     /*< public >*/
     uint32_t nr_xirqs;
-    hwaddr rma_limit;          /* clamp the RMA to this size */
     bool pre_5_1_assoc_refpoints;
     bool pre_5_2_numa_associativity;
     bool pre_6_2_numa_affinity;
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 780688deaf..d704b8ce21 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2735,7 +2735,6 @@ static PCIHostState *spapr_create_default_phb(void)
 static hwaddr spapr_rma_size(SpaprMachineState *spapr, Error **errp)
 {
     MachineState *machine = MACHINE(spapr);
-    SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
     hwaddr rma_size = machine->ram_size;
     hwaddr node0_size = spapr_node0_size(machine);
 
@@ -2748,15 +2747,6 @@ static hwaddr spapr_rma_size(SpaprMachineState *spapr, Error **errp)
      */
     rma_size = MIN(rma_size, 1 * TiB);
 
-    /*
-     * Clamp the RMA size based on machine type.  This is for
-     * migration compatibility with older qemu versions, which limited
-     * the RMA size for complicated and mostly bad reasons.
-     */
-    if (smc->rma_limit) {
-        rma_size = MIN(rma_size, smc->rma_limit);
-    }
-
     if (rma_size < MIN_RMA_SLOF) {
         error_setg(errp,
                    "pSeries SLOF firmware requires >= %" HWADDR_PRIx
@@ -4924,23 +4914,6 @@ static void spapr_machine_5_0_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(5, 0);
 
-/*
- * pseries-4.2
- */
-static void spapr_machine_4_2_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-
-    spapr_machine_5_0_class_options(mc);
-    compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
-    smc->default_caps.caps[SPAPR_CAP_CCF_ASSIST] = SPAPR_CAP_OFF;
-    smc->default_caps.caps[SPAPR_CAP_FWNMI] = SPAPR_CAP_OFF;
-    smc->rma_limit = 16 * GiB;
-    mc->nvdimm_supported = false;
-}
-
-DEFINE_SPAPR_MACHINE(4, 2);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.51.0

On 10/9/25 20:40, Harsh Prateek Bora wrote:
> Remove the pseries-4.2 machine specific logic as had been deprecated and
> due for removal now as per policy.
> 
> Suggested-by: Cédric Le Goater <clg@kaod.org>
> Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
> ---
>   include/hw/ppc/spapr.h |  1 -
>   hw/ppc/spapr.c         | 27 ---------------------------
>   2 files changed, 28 deletions(-)

Reviewed-by: Cédric Le Goater <clg@redhat.com>

Thanks,

C.