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New features have been added to Intel PT which include a number of new packet definitions. This patch adds packet definitions for new packets: TMA, MTC, CYC, VMCS, TRACESTOP and MNT. Also another bit in PIP is defined. This patch only adds support for the definitions. Later patches add support for decoding TMA, MTC, CYC and TRACESTOP which is where those packets are explained. VMCS and the newly defined bit in PIP are used with virtualization which is not supported yet. MNT is a maintenance packet which the decoder should ignore. For details, refer to the June 2015 or later Intel 64 and IA-32 Architectures SDM Chapter 36 Intel Processor Trace. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1437150840-31811-19-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
/*
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* intel_pt_pkt_decoder.h: Intel Processor Trace support
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* Copyright (c) 2013-2014, Intel Corporation.
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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 and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef INCLUDE__INTEL_PT_PKT_DECODER_H__
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#define INCLUDE__INTEL_PT_PKT_DECODER_H__
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#include <stddef.h>
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#include <stdint.h>
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#define INTEL_PT_PKT_DESC_MAX 256
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#define INTEL_PT_NEED_MORE_BYTES -1
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#define INTEL_PT_BAD_PACKET -2
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#define INTEL_PT_PSB_STR "\002\202\002\202\002\202\002\202" \
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"\002\202\002\202\002\202\002\202"
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#define INTEL_PT_PSB_LEN 16
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#define INTEL_PT_PKT_MAX_SZ 16
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enum intel_pt_pkt_type {
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INTEL_PT_BAD,
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INTEL_PT_PAD,
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INTEL_PT_TNT,
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INTEL_PT_TIP_PGD,
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INTEL_PT_TIP_PGE,
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INTEL_PT_TSC,
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INTEL_PT_TMA,
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INTEL_PT_MODE_EXEC,
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INTEL_PT_MODE_TSX,
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INTEL_PT_MTC,
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INTEL_PT_TIP,
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INTEL_PT_FUP,
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INTEL_PT_CYC,
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INTEL_PT_VMCS,
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INTEL_PT_PSB,
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INTEL_PT_PSBEND,
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INTEL_PT_CBR,
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INTEL_PT_TRACESTOP,
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INTEL_PT_PIP,
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INTEL_PT_OVF,
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INTEL_PT_MNT,
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};
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struct intel_pt_pkt {
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enum intel_pt_pkt_type type;
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int count;
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uint64_t payload;
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};
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const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
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int intel_pt_get_packet(const unsigned char *buf, size_t len,
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struct intel_pt_pkt *packet);
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int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
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#endif
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