| Message ID | 20241007153838.1085522-14-harshpb@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ppc/spapr: remove deprecated machines specific code | expand |
On 10/7/24 17:38, Harsh Prateek Bora wrote: > Commit 0cac0f1b964 marked pseries-2.12 machines as deprecated > with reasons mentioned in its commit log. > Removing pseries-2.12 specific code with this patch. > > While at it, also remove pre-3.0-migration hacks introduced for backward > compatibility which are now turned useless. > > Suggested-by: Cédric Le Goater <clg@kaod.org> > Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com> > --- > docs/about/deprecated.rst | 8 -------- > include/hw/ppc/spapr_cpu_core.h | 1 - > target/ppc/cpu.h | 4 ---- > hw/ppc/spapr.c | 25 ------------------------- > hw/ppc/spapr_cpu_core.c | 12 +++--------- > target/ppc/cpu_init.c | 3 +-- > target/ppc/machine.c | 16 ---------------- > 7 files changed, 4 insertions(+), 65 deletions(-) > > diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst > index 48b230b0a0..3b312a5de2 100644 > --- a/docs/about/deprecated.rst > +++ b/docs/about/deprecated.rst > @@ -243,14 +243,6 @@ These old machine types are quite neglected nowadays and thus might have > various pitfalls with regards to live migration. Use a newer machine type > instead. > > -``pseries-2.1`` up to ``pseries-2.12`` (since 9.0) > -'''''''''''''''''''''''''''''''''''''''''''''''''' > - > -Older pseries machines before version 3.0 have undergone many changes > -to correct issues, mostly regarding migration compatibility. These are > -no longer maintained and removing them will make the code easier to > -read and maintain. Use versions 3.0 and above as a replacement. > - > PPC 405 ``ref405ep`` machine (since 9.1) > '''''''''''''''''''''''''''''''''''''''' > > diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h > index 69a52e39b8..68f7083483 100644 > --- a/include/hw/ppc/spapr_cpu_core.h > +++ b/include/hw/ppc/spapr_cpu_core.h > @@ -28,7 +28,6 @@ struct SpaprCpuCore { > /*< public >*/ > PowerPCCPU **threads; > int node_id; > - bool pre_3_0_migration; /* older machine don't know about SpaprCpuState */ > }; > > struct SpaprCpuCoreClass { > diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h > index 74a0ab768d..506c8c825c 100644 > --- a/target/ppc/cpu.h > +++ b/target/ppc/cpu.h > @@ -1454,10 +1454,6 @@ struct ArchCPU { > /* Those resources are used only during code translation */ > /* opcode handlers */ > opc_handler_t *opcodes[PPC_CPU_OPCODES_LEN]; > - > - /* Fields related to migration compatibility hacks */ > - bool pre_3_0_migration; > - int32_t mig_slb_nr; > }; > > /** > diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c > index 9089134d07..f15467049a 100644 > --- a/hw/ppc/spapr.c > +++ b/hw/ppc/spapr.c > @@ -5017,31 +5017,6 @@ static void spapr_machine_3_0_class_options(MachineClass *mc) > > DEFINE_SPAPR_MACHINE(3, 0); > > -/* > - * pseries-2.12 > - */ > -static void spapr_machine_2_12_class_options(MachineClass *mc) > -{ > - SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc); > - static GlobalProperty compat[] = { > - { TYPE_POWERPC_CPU, "pre-3.0-migration", "on" }, > - { TYPE_SPAPR_CPU_CORE, "pre-3.0-migration", "on" }, > - }; > - > - spapr_machine_3_0_class_options(mc); > - compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); > - compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); > - > - /* We depend on kvm_enabled() to choose a default value for the > - * hpt-max-page-size capability. Of course we can't do it here > - * because this is too early and the HW accelerator isn't initialized > - * yet. Postpone this to machine init (see default_caps_with_cpu()). > - */ > - smc->default_caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] = 0; > -} > - > -DEFINE_SPAPR_MACHINE(2, 12); > - > static void spapr_machine_register_types(void) > { > type_register_static(&spapr_machine_info); > diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c > index 4642245168..1a84345f36 100644 > --- a/hw/ppc/spapr_cpu_core.c > +++ b/hw/ppc/spapr_cpu_core.c > @@ -197,9 +197,7 @@ static void spapr_unrealize_vcpu(PowerPCCPU *cpu, SpaprCpuCore *sc) > { > CPUPPCState *env = &cpu->env; > > - if (!sc->pre_3_0_migration) { > - vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data); > - } > + vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data); > spapr_irq_cpu_intc_destroy(SPAPR_MACHINE(qdev_get_machine()), cpu); > cpu_ppc_tb_free(env); > qdev_unrealize(DEVICE(cpu)); > @@ -285,10 +283,8 @@ static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr, > return false; > } > > - if (!sc->pre_3_0_migration) { > - vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state, > - cpu->machine_data); > - } > + vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state, > + cpu->machine_data); > return true; > } > > @@ -366,8 +362,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp) > > static Property spapr_cpu_core_properties[] = { > DEFINE_PROP_INT32("node-id", SpaprCpuCore, node_id, CPU_UNSET_NUMA_NODE_ID), > - DEFINE_PROP_BOOL("pre-3.0-migration", SpaprCpuCore, pre_3_0_migration, > - false), > DEFINE_PROP_END_OF_LIST() > }; > > diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c > index 39c19e6674..011e53d961 100644 > --- a/target/ppc/cpu_init.c > +++ b/target/ppc/cpu_init.c > @@ -7452,8 +7452,7 @@ static void ppc_disas_set_info(CPUState *cs, disassemble_info *info) > } > > static Property ppc_cpu_properties[] = { > - DEFINE_PROP_BOOL("pre-3.0-migration", PowerPCCPU, pre_3_0_migration, > - false), > + /* add default property here */ > DEFINE_PROP_END_OF_LIST(), > }; > > diff --git a/target/ppc/machine.c b/target/ppc/machine.c > index 47495b68b1..2738f429c9 100644 > --- a/target/ppc/machine.c > +++ b/target/ppc/machine.c > @@ -118,15 +118,6 @@ static const VMStateInfo vmstate_info_vsr = { > #define VMSTATE_VSR_ARRAY(_f, _s, _n) \ > VMSTATE_VSR_ARRAY_V(_f, _s, _n, 0) > > -#if defined(TARGET_PPC64) > -static bool cpu_pre_3_0_migration(void *opaque, int version_id) > -{ > - PowerPCCPU *cpu = opaque; > - > - return cpu->pre_3_0_migration; > -} > -#endif > - > static int cpu_pre_save(void *opaque) > { > PowerPCCPU *cpu = opaque; > @@ -154,12 +145,6 @@ static int cpu_pre_save(void *opaque) > env->spr[SPR_IBAT4U + 2 * i + 1] = env->IBAT[1][i + 4]; > } > > - if (cpu->pre_3_0_migration) { > - if (cpu->hash64_opts) { > - cpu->mig_slb_nr = cpu->hash64_opts->slb_size; > - } > - } > - > /* Used to retain migration compatibility for pre 6.0 for 601 machines. */ > env->hflags_compat_nmsr = 0; > > @@ -508,7 +493,6 @@ static const VMStateDescription vmstate_slb = { > .needed = slb_needed, > .post_load = slb_post_load, > .fields = (const VMStateField[]) { > - VMSTATE_INT32_TEST(mig_slb_nr, PowerPCCPU, cpu_pre_3_0_migration), > VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, MAX_SLB_ENTRIES), > VMSTATE_END_OF_LIST() > } you should update the vmstate version too. Thanks, C.
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 48b230b0a0..3b312a5de2 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -243,14 +243,6 @@ These old machine types are quite neglected nowadays and thus might have various pitfalls with regards to live migration. Use a newer machine type instead. -``pseries-2.1`` up to ``pseries-2.12`` (since 9.0) -'''''''''''''''''''''''''''''''''''''''''''''''''' - -Older pseries machines before version 3.0 have undergone many changes -to correct issues, mostly regarding migration compatibility. These are -no longer maintained and removing them will make the code easier to -read and maintain. Use versions 3.0 and above as a replacement. - PPC 405 ``ref405ep`` machine (since 9.1) '''''''''''''''''''''''''''''''''''''''' diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h index 69a52e39b8..68f7083483 100644 --- a/include/hw/ppc/spapr_cpu_core.h +++ b/include/hw/ppc/spapr_cpu_core.h @@ -28,7 +28,6 @@ struct SpaprCpuCore { /*< public >*/ PowerPCCPU **threads; int node_id; - bool pre_3_0_migration; /* older machine don't know about SpaprCpuState */ }; struct SpaprCpuCoreClass { diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 74a0ab768d..506c8c825c 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1454,10 +1454,6 @@ struct ArchCPU { /* Those resources are used only during code translation */ /* opcode handlers */ opc_handler_t *opcodes[PPC_CPU_OPCODES_LEN]; - - /* Fields related to migration compatibility hacks */ - bool pre_3_0_migration; - int32_t mig_slb_nr; }; /** diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 9089134d07..f15467049a 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -5017,31 +5017,6 @@ static void spapr_machine_3_0_class_options(MachineClass *mc) DEFINE_SPAPR_MACHINE(3, 0); -/* - * pseries-2.12 - */ -static void spapr_machine_2_12_class_options(MachineClass *mc) -{ - SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc); - static GlobalProperty compat[] = { - { TYPE_POWERPC_CPU, "pre-3.0-migration", "on" }, - { TYPE_SPAPR_CPU_CORE, "pre-3.0-migration", "on" }, - }; - - spapr_machine_3_0_class_options(mc); - compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); - compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); - - /* We depend on kvm_enabled() to choose a default value for the - * hpt-max-page-size capability. Of course we can't do it here - * because this is too early and the HW accelerator isn't initialized - * yet. Postpone this to machine init (see default_caps_with_cpu()). - */ - smc->default_caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] = 0; -} - -DEFINE_SPAPR_MACHINE(2, 12); - static void spapr_machine_register_types(void) { type_register_static(&spapr_machine_info); diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 4642245168..1a84345f36 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -197,9 +197,7 @@ static void spapr_unrealize_vcpu(PowerPCCPU *cpu, SpaprCpuCore *sc) { CPUPPCState *env = &cpu->env; - if (!sc->pre_3_0_migration) { - vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data); - } + vmstate_unregister(NULL, &vmstate_spapr_cpu_state, cpu->machine_data); spapr_irq_cpu_intc_destroy(SPAPR_MACHINE(qdev_get_machine()), cpu); cpu_ppc_tb_free(env); qdev_unrealize(DEVICE(cpu)); @@ -285,10 +283,8 @@ static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr, return false; } - if (!sc->pre_3_0_migration) { - vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state, - cpu->machine_data); - } + vmstate_register(NULL, cs->cpu_index, &vmstate_spapr_cpu_state, + cpu->machine_data); return true; } @@ -366,8 +362,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp) static Property spapr_cpu_core_properties[] = { DEFINE_PROP_INT32("node-id", SpaprCpuCore, node_id, CPU_UNSET_NUMA_NODE_ID), - DEFINE_PROP_BOOL("pre-3.0-migration", SpaprCpuCore, pre_3_0_migration, - false), DEFINE_PROP_END_OF_LIST() }; diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 39c19e6674..011e53d961 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -7452,8 +7452,7 @@ static void ppc_disas_set_info(CPUState *cs, disassemble_info *info) } static Property ppc_cpu_properties[] = { - DEFINE_PROP_BOOL("pre-3.0-migration", PowerPCCPU, pre_3_0_migration, - false), + /* add default property here */ DEFINE_PROP_END_OF_LIST(), }; diff --git a/target/ppc/machine.c b/target/ppc/machine.c index 47495b68b1..2738f429c9 100644 --- a/target/ppc/machine.c +++ b/target/ppc/machine.c @@ -118,15 +118,6 @@ static const VMStateInfo vmstate_info_vsr = { #define VMSTATE_VSR_ARRAY(_f, _s, _n) \ VMSTATE_VSR_ARRAY_V(_f, _s, _n, 0) -#if defined(TARGET_PPC64) -static bool cpu_pre_3_0_migration(void *opaque, int version_id) -{ - PowerPCCPU *cpu = opaque; - - return cpu->pre_3_0_migration; -} -#endif - static int cpu_pre_save(void *opaque) { PowerPCCPU *cpu = opaque; @@ -154,12 +145,6 @@ static int cpu_pre_save(void *opaque) env->spr[SPR_IBAT4U + 2 * i + 1] = env->IBAT[1][i + 4]; } - if (cpu->pre_3_0_migration) { - if (cpu->hash64_opts) { - cpu->mig_slb_nr = cpu->hash64_opts->slb_size; - } - } - /* Used to retain migration compatibility for pre 6.0 for 601 machines. */ env->hflags_compat_nmsr = 0; @@ -508,7 +493,6 @@ static const VMStateDescription vmstate_slb = { .needed = slb_needed, .post_load = slb_post_load, .fields = (const VMStateField[]) { - VMSTATE_INT32_TEST(mig_slb_nr, PowerPCCPU, cpu_pre_3_0_migration), VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, MAX_SLB_ENTRIES), VMSTATE_END_OF_LIST() }
Commit 0cac0f1b964 marked pseries-2.12 machines as deprecated with reasons mentioned in its commit log. Removing pseries-2.12 specific code with this patch. While at it, also remove pre-3.0-migration hacks introduced for backward compatibility which are now turned useless. Suggested-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com> --- docs/about/deprecated.rst | 8 -------- include/hw/ppc/spapr_cpu_core.h | 1 - target/ppc/cpu.h | 4 ---- hw/ppc/spapr.c | 25 ------------------------- hw/ppc/spapr_cpu_core.c | 12 +++--------- target/ppc/cpu_init.c | 3 +-- target/ppc/machine.c | 16 ---------------- 7 files changed, 4 insertions(+), 65 deletions(-)