---
hw/ppc/spapr.c | 33 +++++++++++++++++++++++++++++++++
hw/ppc/spapr_events.c | 24 +++++++++++++-----------
include/hw/ppc/spapr.h | 3 ++-
3 files changed, 48 insertions(+), 12 deletions(-)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index bc56249..e924fd4 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1498,6 +1498,38 @@ static const VMStateDescription vmstate_spapr_ccs_list =
{
},
};
+static bool spapr_pending_events_needed(void *opaque)
+{
+ sPAPRMachineState *spapr = (sPAPRMachineState *)opaque;
+ return !QTAILQ_EMPTY(&spapr->pending_events);
+}
+
+static const VMStateDescription vmstate_spapr_event_entry = {
+ .name = "spapr_event_log_entry",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT32(log_type, sPAPREventLogEntry),
This requires changing the actual type to int32_t in the structure.
+ VMSTATE_BOOL(exception, sPAPREventLogEntry),
So, at the moment, AFAICT every event is marked as exception == true,
so this doesn't actually tell us anything. If that becomes not the
case in future, can the exception flag be derived from the log_type or
information in the even buffer?
+ VMSTATE_UINT32(data_size, sPAPREventLogEntry),
+ VMSTATE_VARRAY_UINT32_ALLOC(data, sPAPREventLogEntry, data_size,
+ 0, vmstate_info_uint8, uint8_t),
So, data_size duplicates information that's in the event header, which
is a bit sad. I suppose I'm ok with that, since setting up the VARRAY
thing is going to be pretty awkward otherwise.
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static const VMStateDescription vmstate_spapr_pending_events = {
+ .name = "spapr_pending_events",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = spapr_pending_events_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_QTAILQ_V(pending_events, sPAPRMachineState, 1,
+ vmstate_spapr_event_entry, sPAPREventLogEntry, next),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
static bool spapr_ov5_cas_needed(void *opaque)
{
sPAPRMachineState *spapr = opaque;
@@ -1598,6 +1630,7 @@ static const VMStateDescription vmstate_spapr = {
&vmstate_spapr_patb_entry,
&vmstate_spapr_pending_dimm_unplugs,
&vmstate_spapr_ccs_list,
+ &vmstate_spapr_pending_events,
NULL
}
};
diff --git a/hw/ppc/spapr_events.c b/hw/ppc/spapr_events.c
index f0b28d8..70c7cfc 100644
--- a/hw/ppc/spapr_events.c
+++ b/hw/ppc/spapr_events.c
@@ -342,7 +342,8 @@ static int rtas_event_log_to_irq(sPAPRMachineState *spapr,
int log_type)
return source->irq;
}
-static void rtas_event_log_queue(int log_type, void *data, bool exception)
+static void rtas_event_log_queue(int log_type, void *data, bool exception,
+ int data_size)
{
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
sPAPREventLogEntry *entry = g_new(sPAPREventLogEntry, 1);
@@ -351,6 +352,7 @@ static void rtas_event_log_queue(int log_type, void *data,
bool exception)
entry->log_type = log_type;
entry->exception = exception;
entry->data = data;
+ entry->data_size = data_size;
I think it would make more sense to derive data_size from the buffer
header contents here, rather than in all the callers.
QTAILQ_INSERT_TAIL(&spapr->pending_events, entry, next);
}
@@ -445,6 +447,7 @@ static void spapr_powerdown_req(Notifier *n, void *opaque)
struct rtas_event_log_v6_mainb *mainb;
struct rtas_event_log_v6_epow *epow;
struct epow_log_full *new_epow;
+ uint32_t data_size;
new_epow = g_malloc0(sizeof(*new_epow));
hdr = &new_epow->hdr;
@@ -453,14 +456,13 @@ static void spapr_powerdown_req(Notifier *n, void *opaque)
mainb = &new_epow->mainb;
epow = &new_epow->epow;
+ data_size = sizeof(*new_epow);
hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6
| RTAS_LOG_SEVERITY_EVENT
| RTAS_LOG_DISPOSITION_NOT_RECOVERED
| RTAS_LOG_OPTIONAL_PART_PRESENT
| RTAS_LOG_TYPE_EPOW);
- hdr->extended_length = cpu_to_be32(sizeof(*new_epow)
- - sizeof(new_epow->hdr));
-
+ hdr->extended_length = cpu_to_be32(data_size - sizeof(new_epow->hdr));
spapr_init_v6hdr(v6hdr);
spapr_init_maina(maina, 3 /* Main-A, Main-B and EPOW */);
@@ -479,7 +481,7 @@ static void spapr_powerdown_req(Notifier *n, void *opaque)
epow->event_modifier = RTAS_LOG_V6_EPOW_MODIFIER_NORMAL;
epow->extended_modifier = RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC;
- rtas_event_log_queue(RTAS_LOG_TYPE_EPOW, new_epow, true);
+ rtas_event_log_queue(RTAS_LOG_TYPE_EPOW, new_epow, true, data_size);
qemu_irq_pulse(xics_get_qirq(XICS_FABRIC(spapr),
rtas_event_log_to_irq(spapr,
@@ -504,6 +506,7 @@ static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t
hp_action,
struct rtas_event_log_v6_maina *maina;
struct rtas_event_log_v6_mainb *mainb;
struct rtas_event_log_v6_hp *hp;
+ uint32_t data_size;
new_hp = g_malloc0(sizeof(struct hp_log_full));
hdr = &new_hp->hdr;
@@ -512,14 +515,14 @@ static void spapr_hotplug_req_event(uint8_t hp_id,
uint8_t hp_action,
mainb = &new_hp->mainb;
hp = &new_hp->hp;
+ data_size = sizeof(*new_hp);
hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6
| RTAS_LOG_SEVERITY_EVENT
| RTAS_LOG_DISPOSITION_NOT_RECOVERED
| RTAS_LOG_OPTIONAL_PART_PRESENT
| RTAS_LOG_INITIATOR_HOTPLUG
| RTAS_LOG_TYPE_HOTPLUG);
- hdr->extended_length = cpu_to_be32(sizeof(*new_hp)
- - sizeof(new_hp->hdr));
+ hdr->extended_length = cpu_to_be32(data_size - sizeof(new_hp->hdr));
spapr_init_v6hdr(v6hdr);
spapr_init_maina(maina, 3 /* Main-A, Main-B, HP */);
@@ -572,7 +575,7 @@ static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t
hp_action,
cpu_to_be32(drc_id->count_indexed.index);
}
- rtas_event_log_queue(RTAS_LOG_TYPE_HOTPLUG, new_hp, true);
+ rtas_event_log_queue(RTAS_LOG_TYPE_HOTPLUG, new_hp, true, data_size);
qemu_irq_pulse(xics_get_qirq(XICS_FABRIC(spapr),
rtas_event_log_to_irq(spapr,
@@ -671,8 +674,7 @@ static void check_exception(PowerPCCPU *cpu,
sPAPRMachineState *spapr,
if (!event) {
goto out_no_events;
}
-
- hdr = event->data;
+ hdr = (struct rtas_error_log *)event->data;
event_len = be32_to_cpu(hdr->extended_length) + sizeof(*hdr);
if (event_len < len) {
@@ -728,7 +730,7 @@ static void event_scan(PowerPCCPU *cpu, sPAPRMachineState
*spapr,
goto out_no_events;
}
- hdr = event->data;
+ hdr = (struct rtas_error_log *)event->data;
event_len = be32_to_cpu(hdr->extended_length) + sizeof(*hdr);
if (event_len < len) {
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index adc9fdb..ddac014 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -603,7 +603,8 @@ sPAPRTCETable *spapr_tce_find_by_liobn(target_ulong liobn);
struct sPAPREventLogEntry {
int log_type;
bool exception;
- void *data;
+ uint8_t *data;
I think you can avoid this type change (and the casts it requires) by
using VBUFFER instead of VARRAY.
+ uint32_t data_size;
QTAILQ_ENTRY(sPAPREventLogEntry) next;
};