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Diffstat (limited to 'include/xen/trace.h')
| -rw-r--r-- | include/xen/trace.h | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/include/xen/trace.h b/include/xen/trace.h new file mode 100644 index 0000000..a00c017 --- /dev/null +++ b/include/xen/trace.h @@ -0,0 +1,339 @@ +/****************************************************************************** + * 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_HVM_EMUL 0x00084000 /* emulated devices */ + +#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 XEN_SCHEDULER_SEDF 2 (Removed) */ +#define TRC_SCHED_ARINC653 3 +#define TRC_SCHED_RTDS 4 +#define TRC_SCHED_SNULL 5 + +/* 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 DOM0 operations */ +#define TRC_DOM0_DOMOPS 0x00041000 /* Domains manipulations */ + +/* 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_SCHED_SWITCH_INFCONT (TRC_SCHED_VERBOSE + 17) + +#define TRC_DOM0_DOM_ADD (TRC_DOM0_DOMOPS + 1) +#define TRC_DOM0_DOM_REM (TRC_DOM0_DOMOPS + 2) + +#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 emulated devices */ +#define TRC_HVM_EMUL_HPET_START_TIMER (TRC_HVM_EMUL + 0x1) +#define TRC_HVM_EMUL_PIT_START_TIMER (TRC_HVM_EMUL + 0x2) +#define TRC_HVM_EMUL_RTC_START_TIMER (TRC_HVM_EMUL + 0x3) +#define TRC_HVM_EMUL_LAPIC_START_TIMER (TRC_HVM_EMUL + 0x4) +#define TRC_HVM_EMUL_HPET_STOP_TIMER (TRC_HVM_EMUL + 0x5) +#define TRC_HVM_EMUL_PIT_STOP_TIMER (TRC_HVM_EMUL + 0x6) +#define TRC_HVM_EMUL_RTC_STOP_TIMER (TRC_HVM_EMUL + 0x7) +#define TRC_HVM_EMUL_LAPIC_STOP_TIMER (TRC_HVM_EMUL + 0x8) +#define TRC_HVM_EMUL_PIT_TIMER_CB (TRC_HVM_EMUL + 0x9) +#define TRC_HVM_EMUL_LAPIC_TIMER_CB (TRC_HVM_EMUL + 0xA) +#define TRC_HVM_EMUL_PIC_INT_OUTPUT (TRC_HVM_EMUL + 0xB) +#define TRC_HVM_EMUL_PIC_KICK (TRC_HVM_EMUL + 0xC) +#define TRC_HVM_EMUL_PIC_INTACK (TRC_HVM_EMUL + 0xD) +#define TRC_HVM_EMUL_PIC_POSEDGE (TRC_HVM_EMUL + 0xE) +#define TRC_HVM_EMUL_PIC_NEGEDGE (TRC_HVM_EMUL + 0xF) +#define TRC_HVM_EMUL_PIC_PEND_IRQ_CALL (TRC_HVM_EMUL + 0x10) +#define TRC_HVM_EMUL_LAPIC_PIC_INTR (TRC_HVM_EMUL + 0x11) + +/* 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: + */ |