| /* |
| * 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 "target/s390x/cpu-qom.h" |
| #include "qom/object.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_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_STORAGE_INCREMENTS 1020 |
| |
| /* 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 PCI codes */ |
| #define SCLP_HAS_IOA_RECONFIG 0x0000000040000000ULL |
| #define SCLP_CMDW_CONFIGURE_IOA 0x001a0001 |
| #define SCLP_CMDW_DECONFIGURE_IOA 0x001b0001 |
| #define SCLP_RECONFIG_PCI_ATYPE 2 |
| |
| /* 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_NO_ACTION_REQUIRED 0x0120 |
| #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_ADAPTER_IN_RESERVED_STATE 0x05f0 |
| #define SCLP_RC_ADAPTER_TYPE_NOT_RECOGNIZED 0x06f0 |
| #define SCLP_RC_ADAPTER_ID_NOT_RECOGNIZED 0x09f0 |
| #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 arithmetic |
| * 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)) |
| #define SCCB_CPU_FEATURE_LEN 6 |
| |
| /* CPU information */ |
| typedef struct CPUEntry { |
| uint8_t address; |
| uint8_t reserved0; |
| uint8_t features[SCCB_CPU_FEATURE_LEN]; |
| uint8_t reserved2[6]; |
| uint8_t type; |
| uint8_t reserved1; |
| } QEMU_PACKED CPUEntry; |
| |
| #define SCLP_READ_SCP_INFO_FIXED_CPU_OFFSET 128 |
| #define SCLP_READ_SCP_INFO_MNEST 2 |
| 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[76 - 56]; /* 56-75 */ |
| uint32_t ibc_val; |
| uint8_t conf_char[99 - 80]; /* 80-98 */ |
| uint8_t mha_pow; |
| uint32_t rnsize2; |
| uint64_t rnmax2; |
| uint8_t _reserved6[116 - 112]; /* 112-115 */ |
| uint8_t conf_char_ext[120 - 116]; /* 116-119 */ |
| uint16_t highest_cpu; |
| uint8_t _reserved5[124 - 122]; /* 122-123 */ |
| uint32_t hmfai; |
| uint8_t _reserved7[134 - 128]; /* 128-133 */ |
| uint8_t fac134; |
| uint8_t _reserved8[144 - 135]; /* 135-143 */ |
| struct CPUEntry entries[]; |
| /* |
| * When the Extended-Length SCCB (ELS) feature is enabled the |
| * start of the entries field begins at an offset denoted by the |
| * offset_cpu field, otherwise it's at an offset of 128. |
| */ |
| } 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[]; |
| } 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[]; |
| } 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[]; |
| } QEMU_PACKED AttachStorageElement; |
| |
| typedef struct AssignStorage { |
| SCCBHeader h; |
| uint16_t rn; |
| } QEMU_PACKED AssignStorage; |
| |
| typedef struct IoaCfgSccb { |
| SCCBHeader header; |
| uint8_t atype; |
| uint8_t reserved1; |
| uint16_t reserved2; |
| uint32_t aid; |
| } QEMU_PACKED IoaCfgSccb; |
| |
| typedef struct SCCB { |
| SCCBHeader h; |
| char data[]; |
| } QEMU_PACKED SCCB; |
| |
| #define TYPE_SCLP "sclp" |
| OBJECT_DECLARE_TYPE(SCLPDevice, SCLPDeviceClass, |
| SCLP) |
| |
| struct SCLPEventFacility; |
| |
| struct SCLPDevice { |
| /* private */ |
| DeviceState parent_obj; |
| struct SCLPEventFacility *event_facility; |
| int increment_size; |
| |
| /* public */ |
| }; |
| |
| struct SCLPDeviceClass { |
| /* private */ |
| DeviceClass parent_class; |
| void (*read_SCP_info)(SCLPDevice *sclp, SCCB *sccb); |
| void (*read_cpu_info)(SCLPDevice *sclp, SCCB *sccb); |
| |
| /* public */ |
| void (*execute)(SCLPDevice *sclp, SCCB *sccb, uint32_t code); |
| void (*service_interrupt)(SCLPDevice *sclp, uint32_t sccb); |
| }; |
| |
| static inline int sccb_data_len(SCCB *sccb) |
| { |
| return be16_to_cpu(sccb->h.length) - sizeof(sccb->h); |
| } |
| |
| |
| void s390_sclp_init(void); |
| void sclp_service_interrupt(uint32_t sccb); |
| void raise_irq_cpu_hotplug(void); |
| int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code); |
| int sclp_service_call_protected(CPUS390XState *env, uint64_t sccb, |
| uint32_t code); |
| |
| #endif |
