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path: root/hw/ppc/spapr_caps.c
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Diffstat (limited to 'hw/ppc/spapr_caps.c')
-rw-r--r--hw/ppc/spapr_caps.c12
1 files changed, 11 insertions, 1 deletions
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]); \
} \