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sclp-s390: Add device to manage s390 memory hotplug 

Add sclpMemoryHotplugDev to contain associated data structures, etc.

Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Matthew Rosato 2014-08-28 11:25:32 -04:00 committed by Christian Borntraeger
parent f360221988
commit 0844df77fd
2 changed files with 50 additions and 0 deletions
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30
hw/s390x/sclp.c
View File

@ -183,3 +183,33 @@ void s390_sclp_init(void)
OBJECT(dev), NULL); OBJECT(dev), NULL);
qdev_init_nofail(dev); qdev_init_nofail(dev);
} }
sclpMemoryHotplugDev *init_sclp_memory_hotplug_dev(void)
{
DeviceState *dev;
dev = qdev_create(NULL, TYPE_SCLP_MEMORY_HOTPLUG_DEV);
object_property_add_child(qdev_get_machine(),
TYPE_SCLP_MEMORY_HOTPLUG_DEV,
OBJECT(dev), NULL);
qdev_init_nofail(dev);
return SCLP_MEMORY_HOTPLUG_DEV(object_resolve_path(
TYPE_SCLP_MEMORY_HOTPLUG_DEV, NULL));
}
sclpMemoryHotplugDev *get_sclp_memory_hotplug_dev(void)
{
return SCLP_MEMORY_HOTPLUG_DEV(object_resolve_path(
TYPE_SCLP_MEMORY_HOTPLUG_DEV, NULL));
}
static TypeInfo sclp_memory_hotplug_dev_info = {
.name = TYPE_SCLP_MEMORY_HOTPLUG_DEV,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(sclpMemoryHotplugDev),
};
static void register_types(void)
{
type_register_static(&sclp_memory_hotplug_dev_info);
}
type_init(register_types);

20
include/hw/s390x/sclp.h
View File

@ -37,6 +37,7 @@
#define SCLP_STARTING_SUBINCREMENT_ID 0x10001 #define SCLP_STARTING_SUBINCREMENT_ID 0x10001
#define SCLP_INCREMENT_UNIT 0x10000 #define SCLP_INCREMENT_UNIT 0x10000
#define MAX_AVAIL_SLOTS 32 #define MAX_AVAIL_SLOTS 32
#define MAX_STORAGE_INCREMENTS 1020
/* CPU hotplug SCLP codes */ /* CPU hotplug SCLP codes */
#define SCLP_HAS_CPU_INFO 0x0C00000000000000ULL #define SCLP_HAS_CPU_INFO 0x0C00000000000000ULL
@ -156,6 +157,23 @@ typedef struct SCCB {
char data[SCCB_DATA_LEN]; char data[SCCB_DATA_LEN];
} QEMU_PACKED SCCB; } QEMU_PACKED SCCB;
typedef struct sclpMemoryHotplugDev sclpMemoryHotplugDev;
#define TYPE_SCLP_MEMORY_HOTPLUG_DEV "sclp-memory-hotplug-dev"
#define SCLP_MEMORY_HOTPLUG_DEV(obj) \
OBJECT_CHECK(sclpMemoryHotplugDev, (obj), TYPE_SCLP_MEMORY_HOTPLUG_DEV)
struct sclpMemoryHotplugDev {
SysBusDevice parent;
ram_addr_t standby_mem_size;
ram_addr_t padded_ram_size;
ram_addr_t pad_size;
ram_addr_t standby_subregion_size;
ram_addr_t rzm;
int increment_size;
char *standby_state_map;
};
static inline int sccb_data_len(SCCB *sccb) static inline int sccb_data_len(SCCB *sccb)
{ {
return be16_to_cpu(sccb->h.length) - sizeof(sccb->h); return be16_to_cpu(sccb->h.length) - sizeof(sccb->h);
@ -163,6 +181,8 @@ static inline int sccb_data_len(SCCB *sccb)
void s390_sclp_init(void); void s390_sclp_init(void);
sclpMemoryHotplugDev *init_sclp_memory_hotplug_dev(void);
sclpMemoryHotplugDev *get_sclp_memory_hotplug_dev(void);
void sclp_service_interrupt(uint32_t sccb); void sclp_service_interrupt(uint32_t sccb);
void raise_irq_cpu_hotplug(void); void raise_irq_cpu_hotplug(void);