Quoting David Gibson (2016-10-13 23:59:37)
> On Wed, Oct 12, 2016 at 06:13:57PM -0500, Michael Roth wrote:
> > From: Bharata B Rao <bhar...@linux.vnet.ibm.com>
> >
> > Add support for DRC count indexed hotplug ID type which is primarily
> > needed for memory hot unplug. This type allows for specifying the
> > number of DRs that should be plugged/unplugged starting from a given
> > DRC index.
> >
> > Signed-off-by: Bharata B Rao <bhar...@linux.vnet.ibm.com>
> > * updated rtas_event_log_v6_hp to reflect count/index field ordering
> > used in PAPR hotplug ACR
> > Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
> > ---
> > hw/ppc/spapr_events.c | 74
> > ++++++++++++++++++++++++++++++++++++++++----------
> > include/hw/ppc/spapr.h | 4 +++
> > 2 files changed, 63 insertions(+), 15 deletions(-)
> >
> > diff --git a/hw/ppc/spapr_events.c b/hw/ppc/spapr_events.c
> > index f8bbec6..eeca800 100644
> > --- a/hw/ppc/spapr_events.c
> > +++ b/hw/ppc/spapr_events.c
> > @@ -175,6 +175,16 @@ struct epow_log_full {
> > struct rtas_event_log_v6_epow epow;
> > } QEMU_PACKED;
> >
> > +union drc_identifier {
> > + uint32_t index;
> > + uint32_t count;
> > + struct {
> > + uint32_t count;
> > + uint32_t index;
> > + } count_indexed;
> > + char name[1];
> > +} QEMU_PACKED;
> > +
> > struct rtas_event_log_v6_hp {
> > #define RTAS_LOG_V6_SECTION_ID_HOTPLUG 0x4850 /* HP */
> > struct rtas_event_log_v6_section_header hdr;
> > @@ -191,12 +201,9 @@ struct rtas_event_log_v6_hp {
> > #define RTAS_LOG_V6_HP_ID_DRC_NAME 1
> > #define RTAS_LOG_V6_HP_ID_DRC_INDEX 2
> > #define RTAS_LOG_V6_HP_ID_DRC_COUNT 3
> > +#define RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED 4
> > uint8_t reserved;
> > - union {
> > - uint32_t index;
> > - uint32_t count;
> > - char name[1];
> > - } drc;
> > + union drc_identifier drc_id;
> > } QEMU_PACKED;
> >
> > struct hp_log_full {
> > @@ -457,7 +464,7 @@ static void spapr_hotplug_set_signalled(uint32_t
> > drc_index)
> >
> > static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t hp_action,
> > sPAPRDRConnectorType drc_type,
> > - uint32_t drc)
> > + union drc_identifier *drc_id)
> > {
> > sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
> > struct hp_log_full *new_hp;
> > @@ -502,7 +509,7 @@ static void spapr_hotplug_req_event(uint8_t hp_id,
> > uint8_t hp_action,
> > case SPAPR_DR_CONNECTOR_TYPE_PCI:
> > hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_PCI;
> > if (hp->hotplug_action == RTAS_LOG_V6_HP_ACTION_ADD) {
> > - spapr_hotplug_set_signalled(drc);
> > + spapr_hotplug_set_signalled(drc_id->index);
> > }
> > break;
> > case SPAPR_DR_CONNECTOR_TYPE_LMB:
> > @@ -520,9 +527,16 @@ static void spapr_hotplug_req_event(uint8_t hp_id,
> > uint8_t hp_action,
> > }
> >
> > if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT) {
> > - hp->drc.count = cpu_to_be32(drc);
> > + hp->drc_id.count = cpu_to_be32(drc_id->count);
> > } else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_INDEX) {
> > - hp->drc.index = cpu_to_be32(drc);
> > + hp->drc_id.index = cpu_to_be32(drc_id->index);
> > + } else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED) {
> > + /* we should not be using count_indexed value unless the guest
> > + * supports dedicated hotplug event source
> > + */
> > + g_assert(spapr_ovec_test(spapr->ov5_cas, OV5_HP_EVT));
> > + hp->drc_id.count_indexed.count =
> > cpu_to_be32(drc_id->count_indexed.count);
> > + hp->drc_id.count_indexed.index =
> > cpu_to_be32(drc_id->count_indexed.index);
> > }
> >
> > rtas_event_log_queue(RTAS_LOG_TYPE_HOTPLUG, new_hp, true);
> > @@ -535,34 +549,64 @@ void spapr_hotplug_req_add_by_index(sPAPRDRConnector
> > *drc)
> > {
> > sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
> > sPAPRDRConnectorType drc_type = drck->get_type(drc);
> > - uint32_t index = drck->get_index(drc);
> > + union drc_identifier drc_id;
> >
> > + drc_id.index = drck->get_index(drc);
> > spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
> > - RTAS_LOG_V6_HP_ACTION_ADD, drc_type, index);
> > + RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
> > }
> >
> > void spapr_hotplug_req_remove_by_index(sPAPRDRConnector *drc)
> > {
> > sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
> > sPAPRDRConnectorType drc_type = drck->get_type(drc);
> > - uint32_t index = drck->get_index(drc);
> > + union drc_identifier drc_id;
> >
> > + drc_id.index = drck->get_index(drc);
> > spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
> > - RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, index);
> > + RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type,
> > &drc_id);
> > }
> >
> > void spapr_hotplug_req_add_by_count(sPAPRDRConnectorType drc_type,
> > uint32_t count)
> > {
> > + union drc_identifier drc_id;
> > +
> > + drc_id.count = count;
> > spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
> > - RTAS_LOG_V6_HP_ACTION_ADD, drc_type, count);
> > + RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
> > }
> >
> > void spapr_hotplug_req_remove_by_count(sPAPRDRConnectorType drc_type,
> > uint32_t count)
> > {
> > + union drc_identifier drc_id;
> > +
> > + drc_id.count = count;
> > spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
> > - RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, count);
> > + RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type,
> > &drc_id);
> > +}
> > +
> > +void spapr_hotplug_req_add_by_count_indexed(sPAPRDRConnectorType drc_type,
> > + uint32_t count, uint32_t index)
> > +{
> > + union drc_identifier drc_id;
> > +
> > + drc_id.count_indexed.count = count;
> > + drc_id.count_indexed.index = index;
> > + spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED,
> > + RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
> > +}
> > +
> > +void spapr_hotplug_req_remove_by_count_indexed(sPAPRDRConnectorType
> > drc_type,
> > + uint32_t count, uint32_t
> > index)
> > +{
> > + union drc_identifier drc_id;
> > +
> > + drc_id.count_indexed.count = count;
> > + drc_id.count_indexed.index = index;
> > + spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED,
> > + RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type,
> > &drc_id);
> > }
> >
> > static void check_exception(PowerPCCPU *cpu, sPAPRMachineState *spapr,
> > diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> > index 2295ac6..11a2597 100644
> > --- a/include/hw/ppc/spapr.h
> > +++ b/include/hw/ppc/spapr.h
> > @@ -602,6 +602,10 @@ void
> > spapr_hotplug_req_add_by_count(sPAPRDRConnectorType drc_type,
> > uint32_t count);
> > void spapr_hotplug_req_remove_by_count(sPAPRDRConnectorType drc_type,
> > uint32_t count);
> > +void spapr_hotplug_req_add_by_count_indexed(sPAPRDRConnectorType drc_type,
> > + uint32_t count, uint32_t
> > index);
> > +void spapr_hotplug_req_remove_by_count_indexed(sPAPRDRConnectorType
> > drc_type,
> > + uint32_t count, uint32_t
> > index);
> > void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu, Error
> > **errp);
> > void *spapr_populate_hotplug_cpu_dt(CPUState *cs, int *fdt_offset,
> > sPAPRMachineState *spapr);
Was this a mis-fire?
>
> --
> David Gibson | I'll have my music baroque, and my code
> david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
> | _way_ _around_!
> http://www.ozlabs.org/~dgibson
