diff options
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/spapr.c | 15 | ||||
| -rw-r--r-- | hw/ppc/spapr_drc.c | 52 |
2 files changed, 10 insertions, 57 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 73a06df3b1..e4be00b732 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3777,12 +3777,17 @@ void spapr_core_unplug_request(HotplugHandler *hotplug_dev, DeviceState *dev, if (!spapr_drc_unplug_requested(drc)) { spapr_drc_unplug_request(drc); - spapr_hotplug_req_remove_by_index(drc); - } else { - error_setg(errp, "core-id %d unplug is still pending, %d seconds " - "timeout remaining", - cc->core_id, spapr_drc_unplug_timeout_remaining_sec(drc)); } + + /* + * spapr_hotplug_req_remove_by_index is left unguarded, out of the + * "!spapr_drc_unplug_requested" check, to allow for multiple IRQ + * pulses removing the same CPU. Otherwise, in an failed hotunplug + * attempt (e.g. the kernel will refuse to remove the last online + * CPU), we will never attempt it again because unplug_requested + * will still be 'true' in that case. + */ + spapr_hotplug_req_remove_by_index(drc); } int spapr_core_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr, diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index 8a71b03800..9e16505fa1 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -57,8 +57,6 @@ static void spapr_drc_release(SpaprDrc *drc) drck->release(drc->dev); drc->unplug_requested = false; - timer_del(drc->unplug_timeout_timer); - g_free(drc->fdt); drc->fdt = NULL; drc->fdt_start_offset = 0; @@ -372,17 +370,6 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, } while (fdt_depth != 0); } -static void spapr_drc_start_unplug_timeout_timer(SpaprDrc *drc) -{ - SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); - - if (drck->unplug_timeout_seconds != 0) { - timer_mod(drc->unplug_timeout_timer, - qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + - drck->unplug_timeout_seconds * 1000); - } -} - void spapr_drc_attach(SpaprDrc *drc, DeviceState *d) { trace_spapr_drc_attach(spapr_drc_index(drc)); @@ -409,8 +396,6 @@ void spapr_drc_unplug_request(SpaprDrc *drc) drc->unplug_requested = true; - spapr_drc_start_unplug_timeout_timer(drc); - if (drc->state != drck->empty_state) { trace_spapr_drc_awaiting_quiesce(spapr_drc_index(drc)); return; @@ -419,15 +404,6 @@ void spapr_drc_unplug_request(SpaprDrc *drc) spapr_drc_release(drc); } -int spapr_drc_unplug_timeout_remaining_sec(SpaprDrc *drc) -{ - if (drc->unplug_requested) { - return timer_deadline_ms(drc->unplug_timeout_timer) / 1000; - } - - return 0; -} - bool spapr_drc_reset(SpaprDrc *drc) { SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); @@ -499,23 +475,11 @@ static bool spapr_drc_needed(void *opaque) spapr_drc_unplug_requested(drc); } -static int spapr_drc_post_load(void *opaque, int version_id) -{ - SpaprDrc *drc = opaque; - - if (drc->unplug_requested) { - spapr_drc_start_unplug_timeout_timer(drc); - } - - return 0; -} - static const VMStateDescription vmstate_spapr_drc = { .name = "spapr_drc", .version_id = 1, .minimum_version_id = 1, .needed = spapr_drc_needed, - .post_load = spapr_drc_post_load, .fields = (VMStateField []) { VMSTATE_UINT32(state, SpaprDrc), VMSTATE_END_OF_LIST() @@ -526,15 +490,6 @@ static const VMStateDescription vmstate_spapr_drc = { } }; -static void drc_unplug_timeout_cb(void *opaque) -{ - SpaprDrc *drc = opaque; - - if (drc->unplug_requested) { - drc->unplug_requested = false; - } -} - static void drc_realize(DeviceState *d, Error **errp) { SpaprDrc *drc = SPAPR_DR_CONNECTOR(d); @@ -557,11 +512,6 @@ static void drc_realize(DeviceState *d, Error **errp) object_property_add_alias(root_container, link_name, drc->owner, child_name); g_free(link_name); - - drc->unplug_timeout_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, - drc_unplug_timeout_cb, - drc); - vmstate_register(VMSTATE_IF(drc), spapr_drc_index(drc), &vmstate_spapr_drc, drc); trace_spapr_drc_realize_complete(spapr_drc_index(drc)); @@ -579,7 +529,6 @@ static void drc_unrealize(DeviceState *d) name = g_strdup_printf("%x", spapr_drc_index(drc)); object_property_del(root_container, name); g_free(name); - timer_free(drc->unplug_timeout_timer); } SpaprDrc *spapr_dr_connector_new(Object *owner, const char *type, @@ -721,7 +670,6 @@ static void spapr_drc_cpu_class_init(ObjectClass *k, void *data) drck->drc_name_prefix = "CPU "; drck->release = spapr_core_release; drck->dt_populate = spapr_core_dt_populate; - drck->unplug_timeout_seconds = 15; } static void spapr_drc_pci_class_init(ObjectClass *k, void *data) |