234eef51a1
Define new SCLP codes and structures that will be needed for s390 memory hotplug. Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
194 lines
6.3 KiB
C
194 lines
6.3 KiB
C
/*
|
|
* SCLP Support
|
|
*
|
|
* Copyright IBM, Corp. 2012
|
|
*
|
|
* Authors:
|
|
* Christian Borntraeger <borntraeger@de.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or (at your
|
|
* option) any later version. See the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef HW_S390_SCLP_H
|
|
#define HW_S390_SCLP_H
|
|
|
|
#include <hw/sysbus.h>
|
|
#include <hw/qdev.h>
|
|
|
|
#define SCLP_CMD_CODE_MASK 0xffff00ff
|
|
|
|
/* SCLP command codes */
|
|
#define SCLP_CMDW_READ_SCP_INFO 0x00020001
|
|
#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001
|
|
#define SCLP_READ_STORAGE_ELEMENT_INFO 0x00040001
|
|
#define SCLP_ATTACH_STORAGE_ELEMENT 0x00080001
|
|
#define SCLP_ASSIGN_STORAGE 0x000D0001
|
|
#define SCLP_UNASSIGN_STORAGE 0x000C0001
|
|
#define SCLP_CMD_READ_EVENT_DATA 0x00770005
|
|
#define SCLP_CMD_WRITE_EVENT_DATA 0x00760005
|
|
#define SCLP_CMD_READ_EVENT_DATA 0x00770005
|
|
#define SCLP_CMD_WRITE_EVENT_DATA 0x00760005
|
|
#define SCLP_CMD_WRITE_EVENT_MASK 0x00780005
|
|
|
|
/* SCLP Memory hotplug codes */
|
|
#define SCLP_FC_ASSIGN_ATTACH_READ_STOR 0xE00000000000ULL
|
|
#define SCLP_STARTING_SUBINCREMENT_ID 0x10001
|
|
#define SCLP_INCREMENT_UNIT 0x10000
|
|
#define MAX_AVAIL_SLOTS 32
|
|
|
|
/* CPU hotplug SCLP codes */
|
|
#define SCLP_HAS_CPU_INFO 0x0C00000000000000ULL
|
|
#define SCLP_CMDW_READ_CPU_INFO 0x00010001
|
|
#define SCLP_CMDW_CONFIGURE_CPU 0x00110001
|
|
#define SCLP_CMDW_DECONFIGURE_CPU 0x00100001
|
|
|
|
/* SCLP response codes */
|
|
#define SCLP_RC_NORMAL_READ_COMPLETION 0x0010
|
|
#define SCLP_RC_NORMAL_COMPLETION 0x0020
|
|
#define SCLP_RC_SCCB_BOUNDARY_VIOLATION 0x0100
|
|
#define SCLP_RC_INVALID_SCLP_COMMAND 0x01f0
|
|
#define SCLP_RC_CONTAINED_EQUIPMENT_CHECK 0x0340
|
|
#define SCLP_RC_INSUFFICIENT_SCCB_LENGTH 0x0300
|
|
#define SCLP_RC_STANDBY_READ_COMPLETION 0x0410
|
|
#define SCLP_RC_INVALID_FUNCTION 0x40f0
|
|
#define SCLP_RC_NO_EVENT_BUFFERS_STORED 0x60f0
|
|
#define SCLP_RC_INVALID_SELECTION_MASK 0x70f0
|
|
#define SCLP_RC_INCONSISTENT_LENGTHS 0x72f0
|
|
#define SCLP_RC_EVENT_BUFFER_SYNTAX_ERROR 0x73f0
|
|
#define SCLP_RC_INVALID_MASK_LENGTH 0x74f0
|
|
|
|
|
|
/* Service Call Control Block (SCCB) and its elements */
|
|
|
|
#define SCCB_SIZE 4096
|
|
|
|
#define SCLP_VARIABLE_LENGTH_RESPONSE 0x80
|
|
#define SCLP_EVENT_BUFFER_ACCEPTED 0x80
|
|
|
|
#define SCLP_FC_NORMAL_WRITE 0
|
|
|
|
/*
|
|
* Normally packed structures are not the right thing to do, since all code
|
|
* must take care of endianness. We cannot use ldl_phys and friends for two
|
|
* reasons, though:
|
|
* - some of the embedded structures below the SCCB can appear multiple times
|
|
* at different locations, so there is no fixed offset
|
|
* - we work on a private copy of the SCCB, since there are several length
|
|
* fields, that would cause a security nightmare if we allow the guest to
|
|
* alter the structure while we parse it. We cannot use ldl_p and friends
|
|
* either without doing pointer arithmetics
|
|
* So we have to double check that all users of sclp data structures use the
|
|
* right endianness wrappers.
|
|
*/
|
|
typedef struct SCCBHeader {
|
|
uint16_t length;
|
|
uint8_t function_code;
|
|
uint8_t control_mask[3];
|
|
uint16_t response_code;
|
|
} QEMU_PACKED SCCBHeader;
|
|
|
|
#define SCCB_DATA_LEN (SCCB_SIZE - sizeof(SCCBHeader))
|
|
|
|
/* CPU information */
|
|
typedef struct CPUEntry {
|
|
uint8_t address;
|
|
uint8_t reserved0[13];
|
|
uint8_t type;
|
|
uint8_t reserved1;
|
|
} QEMU_PACKED CPUEntry;
|
|
|
|
typedef struct ReadInfo {
|
|
SCCBHeader h;
|
|
uint16_t rnmax;
|
|
uint8_t rnsize;
|
|
uint8_t _reserved1[16 - 11]; /* 11-15 */
|
|
uint16_t entries_cpu; /* 16-17 */
|
|
uint16_t offset_cpu; /* 18-19 */
|
|
uint8_t _reserved2[24 - 20]; /* 20-23 */
|
|
uint8_t loadparm[8]; /* 24-31 */
|
|
uint8_t _reserved3[48 - 32]; /* 32-47 */
|
|
uint64_t facilities; /* 48-55 */
|
|
uint8_t _reserved0[100 - 56];
|
|
uint32_t rnsize2;
|
|
uint64_t rnmax2;
|
|
uint8_t _reserved4[120-112]; /* 112-119 */
|
|
uint16_t highest_cpu;
|
|
uint8_t _reserved5[128 - 122]; /* 122-127 */
|
|
struct CPUEntry entries[0];
|
|
} QEMU_PACKED ReadInfo;
|
|
|
|
typedef struct ReadCpuInfo {
|
|
SCCBHeader h;
|
|
uint16_t nr_configured; /* 8-9 */
|
|
uint16_t offset_configured; /* 10-11 */
|
|
uint16_t nr_standby; /* 12-13 */
|
|
uint16_t offset_standby; /* 14-15 */
|
|
uint8_t reserved0[24-16]; /* 16-23 */
|
|
struct CPUEntry entries[0];
|
|
} QEMU_PACKED ReadCpuInfo;
|
|
|
|
typedef struct ReadStorageElementInfo {
|
|
SCCBHeader h;
|
|
uint16_t max_id;
|
|
uint16_t assigned;
|
|
uint16_t standby;
|
|
uint8_t _reserved0[16 - 14]; /* 14-15 */
|
|
uint32_t entries[0];
|
|
} QEMU_PACKED ReadStorageElementInfo;
|
|
|
|
typedef struct AttachStorageElement {
|
|
SCCBHeader h;
|
|
uint8_t _reserved0[10 - 8]; /* 8-9 */
|
|
uint16_t assigned;
|
|
uint8_t _reserved1[16 - 12]; /* 12-15 */
|
|
uint32_t entries[0];
|
|
} QEMU_PACKED AttachStorageElement;
|
|
|
|
typedef struct AssignStorage {
|
|
SCCBHeader h;
|
|
uint16_t rn;
|
|
} QEMU_PACKED AssignStorage;
|
|
|
|
typedef struct SCCB {
|
|
SCCBHeader h;
|
|
char data[SCCB_DATA_LEN];
|
|
} QEMU_PACKED SCCB;
|
|
|
|
static inline int sccb_data_len(SCCB *sccb)
|
|
{
|
|
return be16_to_cpu(sccb->h.length) - sizeof(sccb->h);
|
|
}
|
|
|
|
#define TYPE_DEVICE_S390_SCLP "s390-sclp-device"
|
|
#define SCLP_S390_DEVICE(obj) \
|
|
OBJECT_CHECK(S390SCLPDevice, (obj), TYPE_DEVICE_S390_SCLP)
|
|
#define SCLP_S390_DEVICE_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(S390SCLPDeviceClass, (klass), \
|
|
TYPE_DEVICE_S390_SCLP)
|
|
#define SCLP_S390_DEVICE_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(S390SCLPDeviceClass, (obj), \
|
|
TYPE_DEVICE_S390_SCLP)
|
|
|
|
typedef struct SCLPEventFacility SCLPEventFacility;
|
|
|
|
typedef struct S390SCLPDevice {
|
|
SysBusDevice busdev;
|
|
SCLPEventFacility *ef;
|
|
void (*sclp_command_handler)(SCLPEventFacility *ef, SCCB *sccb,
|
|
uint64_t code);
|
|
bool (*event_pending)(SCLPEventFacility *ef);
|
|
} S390SCLPDevice;
|
|
|
|
typedef struct S390SCLPDeviceClass {
|
|
DeviceClass qdev;
|
|
int (*init)(S390SCLPDevice *sdev);
|
|
} S390SCLPDeviceClass;
|
|
|
|
void s390_sclp_init(void);
|
|
void sclp_service_interrupt(uint32_t sccb);
|
|
void raise_irq_cpu_hotplug(void);
|
|
|
|
#endif
|