[PATCH v2 4/5] ppc/spapr: remove deprecated machine pseries-4.1

Harsh Prateek Bora posted 5 patches 1 month ago
Maintainers: Nicholas Piggin <npiggin@gmail.com>, Harsh Prateek Bora <harshpb@linux.ibm.com>
[PATCH v2 4/5] ppc/spapr: remove deprecated machine pseries-4.1
Posted by Harsh Prateek Bora 1 month ago
Remove the pseries-4.1 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 |  2 --
 hw/ppc/spapr.c         | 37 +------------------------------------
 2 files changed, 1 insertion(+), 38 deletions(-)

diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 328681a585..96ee868e88 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -144,8 +144,6 @@ struct SpaprMachineClass {
 
     /*< public >*/
     uint32_t nr_xirqs;
-    bool linux_pci_probe;
-    bool smp_threads_vsmt; /* set VSMT to smp_threads by default */
     hwaddr rma_limit;          /* clamp the RMA to this size */
     bool pre_5_1_assoc_refpoints;
     bool pre_5_2_numa_associativity;
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index b93015c335..780688deaf 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1072,7 +1072,6 @@ static void spapr_dt_ov5_platform_support(SpaprMachineState *spapr, void *fdt,
 static void spapr_dt_chosen(SpaprMachineState *spapr, void *fdt, bool reset)
 {
     MachineState *machine = MACHINE(spapr);
-    SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine);
     int chosen;
 
     _FDT(chosen = fdt_add_subnode(fdt, 0, "chosen"));
@@ -1143,9 +1142,7 @@ static void spapr_dt_chosen(SpaprMachineState *spapr, void *fdt, bool reset)
          * We can deal with BAR reallocation just fine, advertise it
          * to the guest
          */
-        if (smc->linux_pci_probe) {
-            _FDT(fdt_setprop_cell(fdt, chosen, "linux,pci-probe-only", 0));
-        }
+        _FDT(fdt_setprop_cell(fdt, chosen, "linux,pci-probe-only", 0));
 
         spapr_dt_ov5_platform_support(spapr, fdt, chosen);
     }
@@ -2595,7 +2592,6 @@ static CPUArchId *spapr_find_cpu_slot(MachineState *ms, uint32_t id, int *idx)
 static void spapr_set_vsmt_mode(SpaprMachineState *spapr, Error **errp)
 {
     MachineState *ms = MACHINE(spapr);
-    SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
     Error *local_err = NULL;
     bool vsmt_user = !!spapr->vsmt;
     int kvm_smt = kvmppc_smt_threads();
@@ -2631,15 +2627,6 @@ static void spapr_set_vsmt_mode(SpaprMachineState *spapr, Error **errp)
             return;
         }
         /* In this case, spapr->vsmt has been set by the command line */
-    } else if (!smc->smp_threads_vsmt) {
-        /*
-         * Default VSMT value is tricky, because we need it to be as
-         * consistent as possible (for migration), but this requires
-         * changing it for at least some existing cases.  We pick 8 as
-         * the value that we'd get with KVM on POWER8, the
-         * overwhelmingly common case in production systems.
-         */
-        spapr->vsmt = MAX(8, smp_threads);
     } else {
         spapr->vsmt = smp_threads;
     }
@@ -4659,8 +4646,6 @@ static void spapr_machine_class_init(ObjectClass *oc, const void *data)
     smc->default_caps.caps[SPAPR_CAP_AIL_MODE_3] = SPAPR_CAP_ON;
     spapr_caps_add_properties(smc);
     smc->irq = &spapr_irq_dual;
-    smc->linux_pci_probe = true;
-    smc->smp_threads_vsmt = true;
     smc->nr_xirqs = SPAPR_NR_XIRQS;
     xfc->match_nvt = spapr_match_nvt;
     vmc->client_architecture_support = spapr_vof_client_architecture_support;
@@ -4956,26 +4941,6 @@ static void spapr_machine_4_2_class_options(MachineClass *mc)
 
 DEFINE_SPAPR_MACHINE(4, 2);
 
-/*
- * pseries-4.1
- */
-static void spapr_machine_4_1_class_options(MachineClass *mc)
-{
-    SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
-    static GlobalProperty compat[] = {
-        /* Only allow 4kiB and 64kiB IOMMU pagesizes */
-        { TYPE_SPAPR_PCI_HOST_BRIDGE, "pgsz", "0x11000" },
-    };
-
-    spapr_machine_4_2_class_options(mc);
-    smc->linux_pci_probe = false;
-    smc->smp_threads_vsmt = false;
-    compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
-}
-
-DEFINE_SPAPR_MACHINE(4, 1);
-
 static void spapr_machine_register_types(void)
 {
     type_register_static(&spapr_machine_info);
-- 
2.51.0


Re: [PATCH v2 4/5] ppc/spapr: remove deprecated machine pseries-4.1
Posted by Cédric Le Goater 1 month ago
On 10/9/25 20:40, Harsh Prateek Bora wrote:
> Remove the pseries-4.1 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>
> ---

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

Thanks,

C.