90af7555c3
Retain the PIP packet payload as is, instead of just the CR3, because it contains also the VMX NR flag which is needed to track VM-Entry. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210218095801.19576-4-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/* 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
|
|
|
|
#define INTEL_PT_VMX_NR_FLAG 1
|
|
|
|
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
|