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89 lines
2.0 KiB
89 lines
2.0 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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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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#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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#define INTEL_PT_VMX_NR_FLAG 1 |
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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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INTEL_PT_PTWRITE, |
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INTEL_PT_PTWRITE_IP, |
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INTEL_PT_EXSTOP, |
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INTEL_PT_EXSTOP_IP, |
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INTEL_PT_MWAIT, |
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INTEL_PT_PWRE, |
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INTEL_PT_PWRX, |
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INTEL_PT_BBP, |
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INTEL_PT_BIP, |
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INTEL_PT_BEP, |
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INTEL_PT_BEP_IP, |
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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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/* |
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* Decoding of BIP packets conflicts with single-byte TNT packets. Since BIP |
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* packets only occur in the context of a block (i.e. between BBP and BEP), that |
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* context must be recorded and passed to the packet decoder. |
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*/ |
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enum intel_pt_pkt_ctx { |
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INTEL_PT_NO_CTX, /* BIP packets are invalid */ |
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INTEL_PT_BLK_4_CTX, /* 4-byte BIP packets */ |
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INTEL_PT_BLK_8_CTX, /* 8-byte BIP packets */ |
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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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enum intel_pt_pkt_ctx *ctx); |
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void intel_pt_upd_pkt_ctx(const struct intel_pt_pkt *packet, |
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enum intel_pt_pkt_ctx *ctx); |
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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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