122 lines
4.1 KiB
C
122 lines
4.1 KiB
C
/*********************************************************
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* Copyright (C) 1998-2012,2014-2019 VMware, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 and no later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*********************************************************/
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/*
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* perfctr.h --
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*
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*/
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#ifndef _PERFCTR_H_
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#define _PERFCTR_H_
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#define INCLUDE_ALLOW_USERLEVEL
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#define INCLUDE_ALLOW_VMKERNEL
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#define INCLUDE_ALLOW_MODULE
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#define INCLUDE_ALLOW_VMCORE
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#define INCLUDE_ALLOW_VMMON
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#include "includeCheck.h"
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#include "vm_basic_types.h"
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#include "perfctr_arch.h"
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#define PERF_EVENT_NAME_LEN 64
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/*
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* nmiNo -- vmm peer is not attempting to do nmi profiling this run
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* nmiYes -- vmm peer is doing nmi profiling and nmis are currently enabled
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* nmiStopped -- vmm peer is doing nmi profiling, but nmis are temporarily
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* disabled for safety reasons.
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*/
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typedef enum {nmiNo = 0, nmiYes, nmiStopped} NMIStatus;
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typedef struct NMIShared { /* shared with vmx and vmkernel */
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NMIStatus vmmStatus;
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int32 nmiErrorCode;
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int64 nmiErrorData;
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} NMIShared;
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/*
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* CrossProf: structures for unified profiling of vmm, vmx, and
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* vmkernel. Per-vcpu.
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*/
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#define CALLSTACK_CROSSPROF_PAGES 1
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typedef struct {
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/*
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* This structure is per-vcpu. The raw data is a packed vector
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* of MonitorCallStackSample, a variable-length structure.
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*/
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/* raw data - packed vec of MonitorCallStackSample, variable length */
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uint8 crossProfSampleBuffer[PAGES_2_BYTES(CALLSTACK_CROSSPROF_PAGES)];
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uint32 crossProfSampleBytes;
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uint32 crossProfNumDroppedSamples; /* For when buffer fills up */
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Bool enabled; /* Can be false in stats build if monitor.callstack=FALSE */
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uint8 _pad[3];
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} CrossProfShared;
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/*
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* PerfCtr_Config --
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* Describes configuration for a single hardware performance counter
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*
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* Since this is only used to record general performance counters, we
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* made the assumption in nmiProfiler.c that the type is GENERAL and
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* index is counter number of type GENERAL.
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*
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* **** x86 ****
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* On AMD K8 and GH:
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* index: Which perf ctr, 0 to 3. RDPMC argument
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* addr: MSR of raw perf ctr (0xc0010004 + index).
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* escrAddr: MSR # of the Perf Event Selector (0xc0010000 + index).
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* escrVal: Value placed in PerfEvtSel MSR; what to measure.
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*
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* On AMD with PerfCtrExtCore support:
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* index: Which perf ctr, 0 to 5. RDPMC argument
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* addr: MSR of raw perf ctr (0xc0010201 + 2 * index).
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* aliased PMCs 0 - 3 (0xc0010004 + index).
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* escrAddr: MSR # of the Perf Event Selector (0xc0010200 + 2 * index).
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* aliased PMCs 0 - 3 (0xc0010000 + index).
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* escrVal: Value placed in PerfEvtSel MSR; what to measure.
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*
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* On Intel Core architecture:
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* <to be documented>
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*
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* **** ARM ****
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* escrVal: Value placed in PMEVTYPER<n>_EL0 to configure event counter
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* index: Index of the event counter.
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*/
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typedef struct PerfCtr_Config {
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uint64 escrVal;
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uint32 index;
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uint32 periodMean;
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/*
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* Random number (whose absolute value is capped at
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* periodJitterMask) is used to randomize sampling interval.
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*/
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uint32 periodJitterMask;
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uint32 seed; // seed is used to compute next random number
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uint16 config;
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Bool valid;
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PERFCTR_CONFIG_ARCH_FIELDS
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} PerfCtr_Config;
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#endif // ifndef _PERFCTR_H_
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