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-rw-r--r--include/hw/s390x/sclp.h232
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diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h
new file mode 100644
index 000000000..d3ade40a5
--- /dev/null
+++ b/include/hw/s390x/sclp.h
@@ -0,0 +1,232 @@
+/*
+ * 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 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))
+#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
+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