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pc-dimm: make qmp_pc_dimm_device_list() sort devices by address

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Make qmp_pc_dimm_device_list() return sorted by start address
list of devices so that it could be reused in places that
would need sorted list*. Reuse existing pc_dimm_built_list()
to get sorted list.

While at it hide recursive callbacks from callers, so that:

  qmp_pc_dimm_device_list(qdev_get_machine(), &list);

could be replaced with simpler:

  list = qmp_pc_dimm_device_list();

* follow up patch will use it in build_srat()

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au> for ppc part
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Haozhong Zhang 2018-03-11 11:02:11 +08:00 committed by Michael S. Tsirkin
parent 1d0cad532c
commit 52c95cae4e
6 changed files with 50 additions and 53 deletions
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83
hw/mem/pc-dimm.c
View file

@ -162,45 +162,6 @@ uint64_t get_plugged_memory_size(void)
return pc_existing_dimms_capacity(&error_abort);
}
int qmp_pc_dimm_device_list(Object *obj, void *opaque)
{
MemoryDeviceInfoList ***prev = opaque;
if (object_dynamic_cast(obj, TYPE_PC_DIMM)) {
DeviceState *dev = DEVICE(obj);
if (dev->realized) {
MemoryDeviceInfoList *elem = g_new0(MemoryDeviceInfoList, 1);
MemoryDeviceInfo *info = g_new0(MemoryDeviceInfo, 1);
PCDIMMDeviceInfo *di = g_new0(PCDIMMDeviceInfo, 1);
DeviceClass *dc = DEVICE_GET_CLASS(obj);
PCDIMMDevice *dimm = PC_DIMM(obj);
if (dev->id) {
di->has_id = true;
di->id = g_strdup(dev->id);
}
di->hotplugged = dev->hotplugged;
di->hotpluggable = dc->hotpluggable;
di->addr = dimm->addr;
di->slot = dimm->slot;
di->node = dimm->node;
di->size = object_property_get_uint(OBJECT(dimm), PC_DIMM_SIZE_PROP,
NULL);
di->memdev = object_get_canonical_path(OBJECT(dimm->hostmem));
info->u.dimm.data = di;
elem->value = info;
elem->next = NULL;
**prev = elem;
*prev = &elem->next;
}
}
object_child_foreach(obj, qmp_pc_dimm_device_list, opaque);
return 0;
}
static int pc_dimm_slot2bitmap(Object *obj, void *opaque)
{
unsigned long *bitmap = opaque;
@ -276,6 +237,50 @@ static int pc_dimm_built_list(Object *obj, void *opaque)
return 0;
}
MemoryDeviceInfoList *qmp_pc_dimm_device_list(void)
{
GSList *dimms = NULL, *item;
MemoryDeviceInfoList *list = NULL, *prev = NULL;
object_child_foreach(qdev_get_machine(), pc_dimm_built_list, &dimms);
for (item = dimms; item; item = g_slist_next(item)) {
PCDIMMDevice *dimm = PC_DIMM(item->data);
Object *obj = OBJECT(dimm);
MemoryDeviceInfoList *elem = g_new0(MemoryDeviceInfoList, 1);
MemoryDeviceInfo *info = g_new0(MemoryDeviceInfo, 1);
PCDIMMDeviceInfo *di = g_new0(PCDIMMDeviceInfo, 1);
DeviceClass *dc = DEVICE_GET_CLASS(obj);
DeviceState *dev = DEVICE(obj);
if (dev->id) {
di->has_id = true;
di->id = g_strdup(dev->id);
}
di->hotplugged = dev->hotplugged;
di->hotpluggable = dc->hotpluggable;
di->addr = dimm->addr;
di->slot = dimm->slot;
di->node = dimm->node;
di->size = object_property_get_uint(obj, PC_DIMM_SIZE_PROP, NULL);
di->memdev = object_get_canonical_path(OBJECT(dimm->hostmem));
info->u.dimm.data = di;
elem->value = info;
elem->next = NULL;
if (prev) {
prev->next = elem;
} else {
list = elem;
}
prev = elem;
}
g_slist_free(dimms);
return list;
}
uint64_t pc_dimm_get_free_addr(uint64_t address_space_start,
uint64_t address_space_size,
uint64_t *hint, uint64_t align, uint64_t size,

3
hw/ppc/spapr.c
View file

@ -722,8 +722,7 @@ static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
}
if (hotplug_lmb_start) {
MemoryDeviceInfoList **prev = &dimms;
qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
dimms = qmp_pc_dimm_device_list();
}
/* ibm,dynamic-memory */

2
include/hw/mem/pc-dimm.h
View file

@ -93,7 +93,7 @@ uint64_t pc_dimm_get_free_addr(uint64_t address_space_start,
int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp);
int qmp_pc_dimm_device_list(Object *obj, void *opaque);
MemoryDeviceInfoList *qmp_pc_dimm_device_list(void);
uint64_t pc_existing_dimms_capacity(Error **errp);
uint64_t get_plugged_memory_size(void);
void pc_dimm_memory_plug(DeviceState *dev, MemoryHotplugState *hpms,

4
numa.c
View file

@ -520,12 +520,10 @@ void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
static void numa_stat_memory_devices(NumaNodeMem node_mem[])
{
MemoryDeviceInfoList *info_list = NULL;
MemoryDeviceInfoList **prev = &info_list;
MemoryDeviceInfoList *info_list = qmp_pc_dimm_device_list();
MemoryDeviceInfoList *info;
PCDIMMDeviceInfo *pcdimm_info;
qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
for (info = info_list; info; info = info->next) {
MemoryDeviceInfo *value = info->value;

7
qmp.c
View file

@ -731,12 +731,7 @@ void qmp_object_del(const char *id, Error **errp)
MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
{
MemoryDeviceInfoList *head = NULL;
MemoryDeviceInfoList **prev = &head;
qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
return head;
return qmp_pc_dimm_device_list();
}
ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)

4
stubs/qmp_pc_dimm.c
View file

@ -2,9 +2,9 @@
#include "qom/object.h"
#include "hw/mem/pc-dimm.h"
int qmp_pc_dimm_device_list(Object *obj, void *opaque)
MemoryDeviceInfoList *qmp_pc_dimm_device_list(void)
{
return 0;
return NULL;
}
uint64_t get_plugged_memory_size(void)