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| /* SPDX-License-Identifier: GPL-2.0-only */
| /*
| * intel_pt_pkt_decoder.h: Intel Processor Trace support
| * Copyright (c) 2013-2014, Intel Corporation.
| */
|
| #ifndef INCLUDE__INTEL_PT_PKT_DECODER_H__
| #define INCLUDE__INTEL_PT_PKT_DECODER_H__
|
| #include <stddef.h>
| #include <stdint.h>
|
| #define INTEL_PT_PKT_DESC_MAX 256
|
| #define INTEL_PT_NEED_MORE_BYTES -1
| #define INTEL_PT_BAD_PACKET -2
|
| #define INTEL_PT_PSB_STR "\002\202\002\202\002\202\002\202" \
| "\002\202\002\202\002\202\002\202"
| #define INTEL_PT_PSB_LEN 16
|
| #define INTEL_PT_PKT_MAX_SZ 16
|
| enum intel_pt_pkt_type {
| INTEL_PT_BAD,
| INTEL_PT_PAD,
| INTEL_PT_TNT,
| INTEL_PT_TIP_PGD,
| INTEL_PT_TIP_PGE,
| INTEL_PT_TSC,
| INTEL_PT_TMA,
| INTEL_PT_MODE_EXEC,
| INTEL_PT_MODE_TSX,
| INTEL_PT_MTC,
| INTEL_PT_TIP,
| INTEL_PT_FUP,
| INTEL_PT_CYC,
| INTEL_PT_VMCS,
| INTEL_PT_PSB,
| INTEL_PT_PSBEND,
| INTEL_PT_CBR,
| INTEL_PT_TRACESTOP,
| INTEL_PT_PIP,
| INTEL_PT_OVF,
| INTEL_PT_MNT,
| INTEL_PT_PTWRITE,
| INTEL_PT_PTWRITE_IP,
| INTEL_PT_EXSTOP,
| INTEL_PT_EXSTOP_IP,
| INTEL_PT_MWAIT,
| INTEL_PT_PWRE,
| INTEL_PT_PWRX,
| INTEL_PT_BBP,
| INTEL_PT_BIP,
| INTEL_PT_BEP,
| INTEL_PT_BEP_IP,
| };
|
| struct intel_pt_pkt {
| enum intel_pt_pkt_type type;
| int count;
| uint64_t payload;
| };
|
| /*
| * Decoding of BIP packets conflicts with single-byte TNT packets. Since BIP
| * packets only occur in the context of a block (i.e. between BBP and BEP), that
| * context must be recorded and passed to the packet decoder.
| */
| enum intel_pt_pkt_ctx {
| INTEL_PT_NO_CTX, /* BIP packets are invalid */
| INTEL_PT_BLK_4_CTX, /* 4-byte BIP packets */
| INTEL_PT_BLK_8_CTX, /* 8-byte BIP packets */
| };
|
| const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
|
| int intel_pt_get_packet(const unsigned char *buf, size_t len,
| struct intel_pt_pkt *packet,
| enum intel_pt_pkt_ctx *ctx);
|
| void intel_pt_upd_pkt_ctx(const struct intel_pt_pkt *packet,
| enum intel_pt_pkt_ctx *ctx);
|
| int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
|
| #endif
|
|
