cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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nosy-dump.h (3238B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __nosy_dump_h__
      3#define __nosy_dump_h__
      4
      5#define array_length(array) (sizeof(array) / sizeof(array[0]))
      6
      7#define ACK_NO_ACK   0x0
      8#define ACK_DONE(a)  ((a >> 2) == 0)
      9#define ACK_BUSY(a)  ((a >> 2) == 1)
     10#define ACK_ERROR(a) ((a >> 2) == 3)
     11
     12#include <stdint.h>
     13
     14struct phy_packet {
     15	uint32_t timestamp;
     16	union {
     17		struct {
     18			uint32_t zero:24;
     19			uint32_t phy_id:6;
     20			uint32_t identifier:2;
     21		} common, link_on;
     22
     23		struct {
     24			uint32_t zero:16;
     25			uint32_t gap_count:6;
     26			uint32_t set_gap_count:1;
     27			uint32_t set_root:1;
     28			uint32_t root_id:6;
     29			uint32_t identifier:2;
     30		} phy_config;
     31
     32		struct {
     33			uint32_t more_packets:1;
     34			uint32_t initiated_reset:1;
     35			uint32_t port2:2;
     36			uint32_t port1:2;
     37			uint32_t port0:2;
     38			uint32_t power_class:3;
     39			uint32_t contender:1;
     40			uint32_t phy_delay:2;
     41			uint32_t phy_speed:2;
     42			uint32_t gap_count:6;
     43			uint32_t link_active:1;
     44			uint32_t extended:1;
     45			uint32_t phy_id:6;
     46			uint32_t identifier:2;
     47		} self_id;
     48
     49		struct {
     50			uint32_t more_packets:1;
     51			uint32_t reserved1:1;
     52			uint32_t porth:2;
     53			uint32_t portg:2;
     54			uint32_t portf:2;
     55			uint32_t porte:2;
     56			uint32_t portd:2;
     57			uint32_t portc:2;
     58			uint32_t portb:2;
     59			uint32_t porta:2;
     60			uint32_t reserved0:2;
     61			uint32_t sequence:3;
     62			uint32_t extended:1;
     63			uint32_t phy_id:6;
     64			uint32_t identifier:2;
     65		} ext_self_id;
     66	};
     67	uint32_t inverted;
     68	uint32_t ack;
     69};
     70
     71#define TCODE_PHY_PACKET 0x10
     72
     73#define PHY_PACKET_CONFIGURATION 0x00
     74#define PHY_PACKET_LINK_ON 0x01
     75#define PHY_PACKET_SELF_ID 0x02
     76
     77struct link_packet {
     78	uint32_t timestamp;
     79	union {
     80		struct {
     81			uint32_t priority:4;
     82			uint32_t tcode:4;
     83			uint32_t rt:2;
     84			uint32_t tlabel:6;
     85			uint32_t destination:16;
     86
     87			uint32_t offset_high:16;
     88			uint32_t source:16;
     89
     90			uint32_t offset_low;
     91		} common;
     92
     93		struct {
     94			uint32_t common[3];
     95			uint32_t crc;
     96		} read_quadlet;
     97
     98		struct {
     99			uint32_t common[3];
    100			uint32_t data;
    101			uint32_t crc;
    102		} read_quadlet_response;
    103
    104		struct {
    105			uint32_t common[3];
    106			uint32_t extended_tcode:16;
    107			uint32_t data_length:16;
    108			uint32_t crc;
    109		} read_block;
    110
    111		struct {
    112			uint32_t common[3];
    113			uint32_t extended_tcode:16;
    114			uint32_t data_length:16;
    115			uint32_t crc;
    116			uint32_t data[0];
    117			/* crc and ack follows. */
    118		} read_block_response;
    119
    120		struct {
    121			uint32_t common[3];
    122			uint32_t data;
    123			uint32_t crc;
    124		} write_quadlet;
    125
    126		struct {
    127			uint32_t common[3];
    128			uint32_t extended_tcode:16;
    129			uint32_t data_length:16;
    130			uint32_t crc;
    131			uint32_t data[0];
    132			/* crc and ack follows. */
    133		} write_block;
    134
    135		struct {
    136			uint32_t common[3];
    137			uint32_t crc;
    138		} write_response;
    139
    140		struct {
    141			uint32_t common[3];
    142			uint32_t data;
    143			uint32_t crc;
    144		} cycle_start;
    145
    146		struct {
    147			uint32_t sy:4;
    148			uint32_t tcode:4;
    149			uint32_t channel:6;
    150			uint32_t tag:2;
    151			uint32_t data_length:16;
    152
    153			uint32_t crc;
    154		} iso_data;
    155	};
    156};
    157
    158struct subaction {
    159	uint32_t ack;
    160	size_t length;
    161	struct list link;
    162	struct link_packet packet;
    163};
    164
    165struct link_transaction {
    166	int request_node, response_node, tlabel;
    167	struct subaction *request, *response;
    168	struct list request_list, response_list;
    169	struct list link;
    170};
    171
    172int decode_fcp(struct link_transaction *t);
    173
    174#endif /* __nosy_dump_h__ */