ref: 17f7f6be4e1a316c0f5f26ff70e047aece4de2bc
dir: /sys/src/9/xen/xen-public/trace.h/
/****************************************************************************** * include/public/trace.h * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Mark Williamson, (C) 2004 Intel Research Cambridge * Copyright (C) 2005 Bin Ren */ #ifndef __XEN_PUBLIC_TRACE_H__ #define __XEN_PUBLIC_TRACE_H__ #define TRACE_EXTRA_MAX 7 #define TRACE_EXTRA_SHIFT 28 /* Trace classes */ #define TRC_CLS_SHIFT 16 #define TRC_GEN 0x0001f000 /* General trace */ #define TRC_SCHED 0x0002f000 /* Xen Scheduler trace */ #define TRC_DOM0OP 0x0004f000 /* Xen DOM0 operation trace */ #define TRC_HVM 0x0008f000 /* Xen HVM trace */ #define TRC_MEM 0x0010f000 /* Xen memory trace */ #define TRC_PV 0x0020f000 /* Xen PV traces */ #define TRC_SHADOW 0x0040f000 /* Xen shadow tracing */ #define TRC_HW 0x0080f000 /* Xen hardware-related traces */ #define TRC_GUEST 0x0800f000 /* Guest-generated traces */ #define TRC_ALL 0x0ffff000 #define TRC_HD_TO_EVENT(x) ((x)&0x0fffffff) #define TRC_HD_CYCLE_FLAG (1UL<<31) #define TRC_HD_INCLUDES_CYCLE_COUNT(x) ( !!( (x) & TRC_HD_CYCLE_FLAG ) ) #define TRC_HD_EXTRA(x) (((x)>>TRACE_EXTRA_SHIFT)&TRACE_EXTRA_MAX) /* Trace subclasses */ #define TRC_SUBCLS_SHIFT 12 /* trace subclasses for SVM */ #define TRC_HVM_ENTRYEXIT 0x00081000 /* VMENTRY and #VMEXIT */ #define TRC_HVM_HANDLER 0x00082000 /* various HVM handlers */ #define TRC_SCHED_MIN 0x00021000 /* Just runstate changes */ #define TRC_SCHED_CLASS 0x00022000 /* Scheduler-specific */ #define TRC_SCHED_VERBOSE 0x00028000 /* More inclusive scheduling */ /* * The highest 3 bits of the last 12 bits of TRC_SCHED_CLASS above are * reserved for encoding what scheduler produced the information. The * actual event is encoded in the last 9 bits. * * This means we have 8 scheduling IDs available (which means at most 8 * schedulers generating events) and, in each scheduler, up to 512 * different events. */ #define TRC_SCHED_ID_BITS 3 #define TRC_SCHED_ID_SHIFT (TRC_SUBCLS_SHIFT - TRC_SCHED_ID_BITS) #define TRC_SCHED_ID_MASK (((1UL<<TRC_SCHED_ID_BITS) - 1) << TRC_SCHED_ID_SHIFT) #define TRC_SCHED_EVT_MASK (~(TRC_SCHED_ID_MASK)) /* Per-scheduler IDs, to identify scheduler specific events */ #define TRC_SCHED_CSCHED 0 #define TRC_SCHED_CSCHED2 1 #define TRC_SCHED_SEDF 2 #define TRC_SCHED_ARINC653 3 /* Per-scheduler tracing */ #define TRC_SCHED_CLASS_EVT(_c, _e) \ ( ( TRC_SCHED_CLASS | \ ((TRC_SCHED_##_c << TRC_SCHED_ID_SHIFT) & TRC_SCHED_ID_MASK) ) + \ (_e & TRC_SCHED_EVT_MASK) ) /* Trace classes for Hardware */ #define TRC_HW_PM 0x00801000 /* Power management traces */ #define TRC_HW_IRQ 0x00802000 /* Traces relating to the handling of IRQs */ /* Trace events per class */ #define TRC_LOST_RECORDS (TRC_GEN + 1) #define TRC_TRACE_WRAP_BUFFER (TRC_GEN + 2) #define TRC_TRACE_CPU_CHANGE (TRC_GEN + 3) #define TRC_SCHED_RUNSTATE_CHANGE (TRC_SCHED_MIN + 1) #define TRC_SCHED_CONTINUE_RUNNING (TRC_SCHED_MIN + 2) #define TRC_SCHED_DOM_ADD (TRC_SCHED_VERBOSE + 1) #define TRC_SCHED_DOM_REM (TRC_SCHED_VERBOSE + 2) #define TRC_SCHED_SLEEP (TRC_SCHED_VERBOSE + 3) #define TRC_SCHED_WAKE (TRC_SCHED_VERBOSE + 4) #define TRC_SCHED_YIELD (TRC_SCHED_VERBOSE + 5) #define TRC_SCHED_BLOCK (TRC_SCHED_VERBOSE + 6) #define TRC_SCHED_SHUTDOWN (TRC_SCHED_VERBOSE + 7) #define TRC_SCHED_CTL (TRC_SCHED_VERBOSE + 8) #define TRC_SCHED_ADJDOM (TRC_SCHED_VERBOSE + 9) #define TRC_SCHED_SWITCH (TRC_SCHED_VERBOSE + 10) #define TRC_SCHED_S_TIMER_FN (TRC_SCHED_VERBOSE + 11) #define TRC_SCHED_T_TIMER_FN (TRC_SCHED_VERBOSE + 12) #define TRC_SCHED_DOM_TIMER_FN (TRC_SCHED_VERBOSE + 13) #define TRC_SCHED_SWITCH_INFPREV (TRC_SCHED_VERBOSE + 14) #define TRC_SCHED_SWITCH_INFNEXT (TRC_SCHED_VERBOSE + 15) #define TRC_SCHED_SHUTDOWN_CODE (TRC_SCHED_VERBOSE + 16) #define TRC_MEM_PAGE_GRANT_MAP (TRC_MEM + 1) #define TRC_MEM_PAGE_GRANT_UNMAP (TRC_MEM + 2) #define TRC_MEM_PAGE_GRANT_TRANSFER (TRC_MEM + 3) #define TRC_MEM_SET_P2M_ENTRY (TRC_MEM + 4) #define TRC_MEM_DECREASE_RESERVATION (TRC_MEM + 5) #define TRC_MEM_POD_POPULATE (TRC_MEM + 16) #define TRC_MEM_POD_ZERO_RECLAIM (TRC_MEM + 17) #define TRC_MEM_POD_SUPERPAGE_SPLINTER (TRC_MEM + 18) #define TRC_PV_ENTRY 0x00201000 /* Hypervisor entry points for PV guests. */ #define TRC_PV_SUBCALL 0x00202000 /* Sub-call in a multicall hypercall */ #define TRC_PV_HYPERCALL (TRC_PV_ENTRY + 1) #define TRC_PV_TRAP (TRC_PV_ENTRY + 3) #define TRC_PV_PAGE_FAULT (TRC_PV_ENTRY + 4) #define TRC_PV_FORCED_INVALID_OP (TRC_PV_ENTRY + 5) #define TRC_PV_EMULATE_PRIVOP (TRC_PV_ENTRY + 6) #define TRC_PV_EMULATE_4GB (TRC_PV_ENTRY + 7) #define TRC_PV_MATH_STATE_RESTORE (TRC_PV_ENTRY + 8) #define TRC_PV_PAGING_FIXUP (TRC_PV_ENTRY + 9) #define TRC_PV_GDT_LDT_MAPPING_FAULT (TRC_PV_ENTRY + 10) #define TRC_PV_PTWR_EMULATION (TRC_PV_ENTRY + 11) #define TRC_PV_PTWR_EMULATION_PAE (TRC_PV_ENTRY + 12) #define TRC_PV_HYPERCALL_V2 (TRC_PV_ENTRY + 13) #define TRC_PV_HYPERCALL_SUBCALL (TRC_PV_SUBCALL + 14) /* * TRC_PV_HYPERCALL_V2 format * * Only some of the hypercall argument are recorded. Bit fields A0 to * A5 in the first extra word are set if the argument is present and * the arguments themselves are packed sequentially in the following * words. * * The TRC_64_FLAG bit is not set for these events (even if there are * 64-bit arguments in the record). * * Word * 0 bit 31 30|29 28|27 26|25 24|23 22|21 20|19 ... 0 * A5 |A4 |A3 |A2 |A1 |A0 |Hypercall op * 1 First 32 bit (or low word of first 64 bit) arg in record * 2 Second 32 bit (or high word of first 64 bit) arg in record * ... * * A0-A5 bitfield values: * * 00b Argument not present * 01b 32-bit argument present * 10b 64-bit argument present * 11b Reserved */ #define TRC_PV_HYPERCALL_V2_ARG_32(i) (0x1 << (20 + 2*(i))) #define TRC_PV_HYPERCALL_V2_ARG_64(i) (0x2 << (20 + 2*(i))) #define TRC_PV_HYPERCALL_V2_ARG_MASK (0xfff00000) #define TRC_SHADOW_NOT_SHADOW (TRC_SHADOW + 1) #define TRC_SHADOW_FAST_PROPAGATE (TRC_SHADOW + 2) #define TRC_SHADOW_FAST_MMIO (TRC_SHADOW + 3) #define TRC_SHADOW_FALSE_FAST_PATH (TRC_SHADOW + 4) #define TRC_SHADOW_MMIO (TRC_SHADOW + 5) #define TRC_SHADOW_FIXUP (TRC_SHADOW + 6) #define TRC_SHADOW_DOMF_DYING (TRC_SHADOW + 7) #define TRC_SHADOW_EMULATE (TRC_SHADOW + 8) #define TRC_SHADOW_EMULATE_UNSHADOW_USER (TRC_SHADOW + 9) #define TRC_SHADOW_EMULATE_UNSHADOW_EVTINJ (TRC_SHADOW + 10) #define TRC_SHADOW_EMULATE_UNSHADOW_UNHANDLED (TRC_SHADOW + 11) #define TRC_SHADOW_WRMAP_BF (TRC_SHADOW + 12) #define TRC_SHADOW_PREALLOC_UNPIN (TRC_SHADOW + 13) #define TRC_SHADOW_RESYNC_FULL (TRC_SHADOW + 14) #define TRC_SHADOW_RESYNC_ONLY (TRC_SHADOW + 15) /* trace events per subclass */ #define TRC_HVM_NESTEDFLAG (0x400) #define TRC_HVM_VMENTRY (TRC_HVM_ENTRYEXIT + 0x01) #define TRC_HVM_VMEXIT (TRC_HVM_ENTRYEXIT + 0x02) #define TRC_HVM_VMEXIT64 (TRC_HVM_ENTRYEXIT + TRC_64_FLAG + 0x02) #define TRC_HVM_PF_XEN (TRC_HVM_HANDLER + 0x01) #define TRC_HVM_PF_XEN64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x01) #define TRC_HVM_PF_INJECT (TRC_HVM_HANDLER + 0x02) #define TRC_HVM_PF_INJECT64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x02) #define TRC_HVM_INJ_EXC (TRC_HVM_HANDLER + 0x03) #define TRC_HVM_INJ_VIRQ (TRC_HVM_HANDLER + 0x04) #define TRC_HVM_REINJ_VIRQ (TRC_HVM_HANDLER + 0x05) #define TRC_HVM_IO_READ (TRC_HVM_HANDLER + 0x06) #define TRC_HVM_IO_WRITE (TRC_HVM_HANDLER + 0x07) #define TRC_HVM_CR_READ (TRC_HVM_HANDLER + 0x08) #define TRC_HVM_CR_READ64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x08) #define TRC_HVM_CR_WRITE (TRC_HVM_HANDLER + 0x09) #define TRC_HVM_CR_WRITE64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x09) #define TRC_HVM_DR_READ (TRC_HVM_HANDLER + 0x0A) #define TRC_HVM_DR_WRITE (TRC_HVM_HANDLER + 0x0B) #define TRC_HVM_MSR_READ (TRC_HVM_HANDLER + 0x0C) #define TRC_HVM_MSR_WRITE (TRC_HVM_HANDLER + 0x0D) #define TRC_HVM_CPUID (TRC_HVM_HANDLER + 0x0E) #define TRC_HVM_INTR (TRC_HVM_HANDLER + 0x0F) #define TRC_HVM_NMI (TRC_HVM_HANDLER + 0x10) #define TRC_HVM_SMI (TRC_HVM_HANDLER + 0x11) #define TRC_HVM_VMMCALL (TRC_HVM_HANDLER + 0x12) #define TRC_HVM_HLT (TRC_HVM_HANDLER + 0x13) #define TRC_HVM_INVLPG (TRC_HVM_HANDLER + 0x14) #define TRC_HVM_INVLPG64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x14) #define TRC_HVM_MCE (TRC_HVM_HANDLER + 0x15) #define TRC_HVM_IOPORT_READ (TRC_HVM_HANDLER + 0x16) #define TRC_HVM_IOMEM_READ (TRC_HVM_HANDLER + 0x17) #define TRC_HVM_CLTS (TRC_HVM_HANDLER + 0x18) #define TRC_HVM_LMSW (TRC_HVM_HANDLER + 0x19) #define TRC_HVM_LMSW64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x19) #define TRC_HVM_RDTSC (TRC_HVM_HANDLER + 0x1a) #define TRC_HVM_INTR_WINDOW (TRC_HVM_HANDLER + 0x20) #define TRC_HVM_NPF (TRC_HVM_HANDLER + 0x21) #define TRC_HVM_REALMODE_EMULATE (TRC_HVM_HANDLER + 0x22) #define TRC_HVM_TRAP (TRC_HVM_HANDLER + 0x23) #define TRC_HVM_TRAP_DEBUG (TRC_HVM_HANDLER + 0x24) #define TRC_HVM_VLAPIC (TRC_HVM_HANDLER + 0x25) #define TRC_HVM_IOPORT_WRITE (TRC_HVM_HANDLER + 0x216) #define TRC_HVM_IOMEM_WRITE (TRC_HVM_HANDLER + 0x217) /* trace events for per class */ #define TRC_PM_FREQ_CHANGE (TRC_HW_PM + 0x01) #define TRC_PM_IDLE_ENTRY (TRC_HW_PM + 0x02) #define TRC_PM_IDLE_EXIT (TRC_HW_PM + 0x03) /* Trace events for IRQs */ #define TRC_HW_IRQ_MOVE_CLEANUP_DELAY (TRC_HW_IRQ + 0x1) #define TRC_HW_IRQ_MOVE_CLEANUP (TRC_HW_IRQ + 0x2) #define TRC_HW_IRQ_BIND_VECTOR (TRC_HW_IRQ + 0x3) #define TRC_HW_IRQ_CLEAR_VECTOR (TRC_HW_IRQ + 0x4) #define TRC_HW_IRQ_MOVE_FINISH (TRC_HW_IRQ + 0x5) #define TRC_HW_IRQ_ASSIGN_VECTOR (TRC_HW_IRQ + 0x6) #define TRC_HW_IRQ_UNMAPPED_VECTOR (TRC_HW_IRQ + 0x7) #define TRC_HW_IRQ_HANDLED (TRC_HW_IRQ + 0x8) /* * Event Flags * * Some events (e.g, TRC_PV_TRAP and TRC_HVM_IOMEM_READ) have multiple * record formats. These event flags distinguish between the * different formats. */ #define TRC_64_FLAG 0x100 /* Addresses are 64 bits (instead of 32 bits) */ /* This structure represents a single trace buffer record. */ struct t_rec { uint32_t event:28; uint32_t extra_u32:3; /* # entries in trailing extra_u32[] array */ uint32_t cycles_included:1; /* u.cycles or u.no_cycles? */ union { struct { uint32_t cycles_lo, cycles_hi; /* cycle counter timestamp */ uint32_t extra_u32[7]; /* event data items */ } cycles; struct { uint32_t extra_u32[7]; /* event data items */ } nocycles; } u; }; /* * This structure contains the metadata for a single trace buffer. The head * field, indexes into an array of struct t_rec's. */ struct t_buf { /* Assume the data buffer size is X. X is generally not a power of 2. * CONS and PROD are incremented modulo (2*X): * 0 <= cons < 2*X * 0 <= prod < 2*X * This is done because addition modulo X breaks at 2^32 when X is not a * power of 2: * (((2^32 - 1) % X) + 1) % X != (2^32) % X */ uint32_t cons; /* Offset of next item to be consumed by control tools. */ uint32_t prod; /* Offset of next item to be produced by Xen. */ /* Records follow immediately after the meta-data header. */ }; /* Structure used to pass MFNs to the trace buffers back to trace consumers. * Offset is an offset into the mapped structure where the mfn list will be held. * MFNs will be at ((unsigned long *)(t_info))+(t_info->cpu_offset[cpu]). */ struct t_info { uint16_t tbuf_size; /* Size in pages of each trace buffer */ uint16_t mfn_offset[]; /* Offset within t_info structure of the page list per cpu */ /* MFN lists immediately after the header */ }; #endif /* __XEN_PUBLIC_TRACE_H__ */ /* * Local variables: * mode: C * c-file-style: "BSD" * c-basic-offset: 4 * tab-width: 4 * indent-tabs-mode: nil * End: */