1 /* 2 * QEMU CXL Events 3 * 4 * Copyright (c) 2022 Intel 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2. See the 7 * COPYING file in the top-level directory. 8 */ 9 10 #ifndef CXL_EVENTS_H 11 #define CXL_EVENTS_H 12 13 #include "qemu/uuid.h" 14 15 /* 16 * CXL rev 3.0 section 8.2.9.2.2; Table 8-49 17 * 18 * Define these as the bit position for the event status register for ease of 19 * setting the status. 20 */ 21 typedef enum CXLEventLogType { 22 CXL_EVENT_TYPE_INFO = 0, 23 CXL_EVENT_TYPE_WARN = 1, 24 CXL_EVENT_TYPE_FAIL = 2, 25 CXL_EVENT_TYPE_FATAL = 3, 26 CXL_EVENT_TYPE_DYNAMIC_CAP = 4, 27 CXL_EVENT_TYPE_MAX 28 } CXLEventLogType; 29 30 /* 31 * Common Event Record Format 32 * CXL rev 3.0 section 8.2.9.2.1; Table 8-42 33 */ 34 #define CXL_EVENT_REC_HDR_RES_LEN 0xf 35 typedef struct CXLEventRecordHdr { 36 QemuUUID id; 37 uint8_t length; 38 uint8_t flags[3]; 39 uint16_t handle; 40 uint16_t related_handle; 41 uint64_t timestamp; 42 uint8_t maint_op_class; 43 uint8_t reserved[CXL_EVENT_REC_HDR_RES_LEN]; 44 } QEMU_PACKED CXLEventRecordHdr; 45 46 #define CXL_EVENT_RECORD_DATA_LENGTH 0x50 47 typedef struct CXLEventRecordRaw { 48 CXLEventRecordHdr hdr; 49 uint8_t data[CXL_EVENT_RECORD_DATA_LENGTH]; 50 } QEMU_PACKED CXLEventRecordRaw; 51 #define CXL_EVENT_RECORD_SIZE (sizeof(CXLEventRecordRaw)) 52 53 /* 54 * Get Event Records output payload 55 * CXL rev 3.0 section 8.2.9.2.2; Table 8-50 56 */ 57 #define CXL_GET_EVENT_FLAG_OVERFLOW BIT(0) 58 #define CXL_GET_EVENT_FLAG_MORE_RECORDS BIT(1) 59 typedef struct CXLGetEventPayload { 60 uint8_t flags; 61 uint8_t reserved1; 62 uint16_t overflow_err_count; 63 uint64_t first_overflow_timestamp; 64 uint64_t last_overflow_timestamp; 65 uint16_t record_count; 66 uint8_t reserved2[0xa]; 67 CXLEventRecordRaw records[]; 68 } QEMU_PACKED CXLGetEventPayload; 69 #define CXL_EVENT_PAYLOAD_HDR_SIZE (sizeof(CXLGetEventPayload)) 70 71 /* 72 * Clear Event Records input payload 73 * CXL rev 3.0 section 8.2.9.2.3; Table 8-51 74 */ 75 typedef struct CXLClearEventPayload { 76 uint8_t event_log; /* CXLEventLogType */ 77 uint8_t clear_flags; 78 uint8_t nr_recs; 79 uint8_t reserved[3]; 80 uint16_t handle[]; 81 } CXLClearEventPayload; 82 83 #endif /* CXL_EVENTS_H */ 84