diff options
| -rw-r--r-- | hw/ppc/spapr.c | 1 | ||||
| -rw-r--r-- | hw/ppc/spapr_caps.c | 12 | ||||
| -rw-r--r-- | include/hw/ppc/spapr.h | 1 |
3 files changed, 13 insertions, 1 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 4fd16b43f0..e2b33e5890 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -4431,6 +4431,7 @@ static void spapr_machine_4_0_class_options(MachineClass *mc) compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); smc->phb_placement = phb_placement_4_0; smc->irq = &spapr_irq_xics; + smc->pre_4_1_migration = true; } DEFINE_SPAPR_MACHINE(4_0, "4.0", false); diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index 658eb15a14..31b4661399 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -64,6 +64,7 @@ typedef struct SpaprCapabilityInfo { void (*apply)(SpaprMachineState *spapr, uint8_t val, Error **errp); void (*cpu_apply)(SpaprMachineState *spapr, PowerPCCPU *cpu, uint8_t val, Error **errp); + bool (*migrate_needed)(void *opaque); } SpaprCapabilityInfo; static void spapr_cap_get_bool(Object *obj, Visitor *v, const char *name, @@ -350,6 +351,11 @@ static void cap_hpt_maxpagesize_apply(SpaprMachineState *spapr, spapr_check_pagesize(spapr, qemu_minrampagesize(), errp); } +static bool cap_hpt_maxpagesize_migrate_needed(void *opaque) +{ + return !SPAPR_MACHINE_GET_CLASS(opaque)->pre_4_1_migration; +} + static bool spapr_pagesize_cb(void *opaque, uint32_t seg_pshift, uint32_t pshift) { @@ -542,6 +548,7 @@ SpaprCapabilityInfo capability_table[SPAPR_CAP_NUM] = { .type = "int", .apply = cap_hpt_maxpagesize_apply, .cpu_apply = cap_hpt_maxpagesize_cpu_apply, + .migrate_needed = cap_hpt_maxpagesize_migrate_needed, }, [SPAPR_CAP_NESTED_KVM_HV] = { .name = "nested-hv", @@ -679,8 +686,11 @@ int spapr_caps_post_migration(SpaprMachineState *spapr) static bool spapr_cap_##sname##_needed(void *opaque) \ { \ SpaprMachineState *spapr = opaque; \ + bool (*needed)(void *opaque) = \ + capability_table[cap].migrate_needed; \ \ - return spapr->cmd_line_caps[cap] && \ + return needed ? needed(opaque) : true && \ + spapr->cmd_line_caps[cap] && \ (spapr->eff.caps[cap] != \ spapr->def.caps[cap]); \ } \ diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 9fc91c8f5e..4f5becf1f3 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -119,6 +119,7 @@ struct SpaprMachineClass { bool pre_2_10_has_unused_icps; bool legacy_irq_allocation; bool broken_host_serial_model; /* present real host info to the guest */ + bool pre_4_1_migration; /* don't migrate hpt-max-page-size */ void (*phb_placement)(SpaprMachineState *spapr, uint32_t index, uint64_t *buid, hwaddr *pio, |