Add TCG ACPI spec table (TCPA) support.
Submitted by: Hans-Joerg_Hoexer@genua.de
This commit is contained in:
takawata
parent
0737955344
commit
c320859512
@ -68,6 +68,7 @@ static void acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain,
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static void acpi_print_srat_memory(ACPI_SRAT_MEM_AFFINITY *mp);
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static void acpi_print_srat(ACPI_SUBTABLE_HEADER *srat);
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static void acpi_handle_srat(ACPI_TABLE_HEADER *sdp);
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static void acpi_handle_tcpa(ACPI_TABLE_HEADER *sdp);
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static void acpi_print_sdt(ACPI_TABLE_HEADER *sdp);
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static void acpi_print_fadt(ACPI_TABLE_HEADER *sdp);
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static void acpi_print_facs(ACPI_TABLE_FACS *facs);
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@ -81,6 +82,46 @@ static void acpi_walk_subtables(ACPI_TABLE_HEADER *table, void *first,
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/* Size of an address. 32-bit for ACPI 1.0, 64-bit for ACPI 2.0 and up. */
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static int addr_size;
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/* Strings used in the TCPA table */
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static const char *tcpa_event_type_strings[] = {
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"PREBOOT Certificate",
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"POST Code",
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"Unused",
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"No Action",
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"Separator",
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"Action",
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"Event Tag",
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"S-CRTM Contents",
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"S-CRTM Version",
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"CPU Microcode",
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"Platform Config Flags",
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"Table of Devices",
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"Compact Hash",
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"IPL",
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"IPL Partition Data",
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"Non-Host Code",
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"Non-Host Config",
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"Non-Host Info"
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};
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static const char *TCPA_pcclient_strings[] = {
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"<undefined>",
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"SMBIOS",
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"BIS Certificate",
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"POST BIOS ROM Strings",
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"ESCD",
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"CMOS",
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"NVRAM",
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"Option ROM Execute",
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"Option ROM Configurateion",
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"<undefined>",
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"Option ROM Microcode Update ",
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"S-CRTM Version String",
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"S-CRTM Contents",
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"POST Contents",
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"Table of Devices",
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};
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static void
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acpi_print_string(char *s, size_t length)
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{
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@ -492,6 +533,165 @@ acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain,
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printf("\tProximity Domain=%d\n", proximity_domain);
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}
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static char *
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acpi_tcpa_evname(struct TCPAevent *event)
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{
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struct TCPApc_event *pc_event;
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char *eventname = NULL;
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pc_event = (struct TCPApc_event *)(event + 1);
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switch(event->event_type) {
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case PREBOOT:
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case POST_CODE:
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case UNUSED:
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case NO_ACTION:
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case SEPARATOR:
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case SCRTM_CONTENTS:
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case SCRTM_VERSION:
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case CPU_MICROCODE:
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case PLATFORM_CONFIG_FLAGS:
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case TABLE_OF_DEVICES:
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case COMPACT_HASH:
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case IPL:
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case IPL_PARTITION_DATA:
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case NONHOST_CODE:
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case NONHOST_CONFIG:
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case NONHOST_INFO:
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asprintf(&eventname, "%s",
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tcpa_event_type_strings[event->event_type]);
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break;
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case ACTION:
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eventname = calloc(event->event_size + 1, sizeof(char));
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memcpy(eventname, pc_event, event->event_size);
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break;
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case EVENT_TAG:
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switch (pc_event->event_id) {
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case SMBIOS:
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case BIS_CERT:
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case CMOS:
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case NVRAM:
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case OPTION_ROM_EXEC:
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case OPTION_ROM_CONFIG:
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case S_CRTM_VERSION:
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case POST_BIOS_ROM:
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case ESCD:
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case OPTION_ROM_MICROCODE:
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case S_CRTM_CONTENTS:
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case POST_CONTENTS:
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asprintf(&eventname, "%s",
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TCPA_pcclient_strings[pc_event->event_id]);
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break;
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default:
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asprintf(&eventname, "<unknown tag 0x%02x>",
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pc_event->event_id);
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break;
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}
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break;
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default:
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asprintf(&eventname, "<unknown 0x%02x>", event->event_type);
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break;
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}
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return eventname;
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}
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static void
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acpi_print_tcpa(struct TCPAevent *event)
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{
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int i;
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char *eventname;
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eventname = acpi_tcpa_evname(event);
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printf("\t%d", event->pcr_index);
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printf(" 0x");
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for (i = 0; i < 20; i++)
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printf("%02x", event->pcr_value[i]);
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printf(" [%s]\n", eventname ? eventname : "<unknown>");
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free(eventname);
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}
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static void
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acpi_handle_tcpa(ACPI_TABLE_HEADER *sdp)
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{
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struct TCPAbody *tcpa;
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struct TCPAevent *event;
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u_int64_t len, paddr;
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unsigned char *vaddr = NULL;
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unsigned char *vend = NULL;
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printf(BEGIN_COMMENT);
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acpi_print_sdt(sdp);
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tcpa = (struct TCPAbody *) sdp;
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switch (tcpa->platform_class) {
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case ACPI_TCPA_BIOS_CLIENT:
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len = tcpa->client.log_max_len;
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paddr = tcpa->client.log_start_addr;
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break;
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case ACPI_TCPA_BIOS_SERVER:
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len = tcpa->server.log_max_len;
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paddr = tcpa->server.log_start_addr;
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break;
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default:
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printf("XXX");
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printf(END_COMMENT);
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return;
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}
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printf("\tClass %d Base Address 0x%jx Length %lld\n\n",
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tcpa->platform_class, paddr, len);
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if (len == 0) {
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printf("\tEmpty TCPA table\n");
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printf(END_COMMENT);
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return;
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}
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vaddr = (unsigned char *)acpi_map_physical(paddr, len);
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vend = vaddr + len;
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while (vaddr != NULL) {
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if (vaddr + sizeof(struct TCPAevent) >= vend)
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break;
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event = (struct TCPAevent *)vaddr;
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if (vaddr + event->event_size >= vend)
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break;
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if (event->event_type == 0 && event->event_size == 0)
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break;
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#if 0
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{
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unsigned int i, j, k;
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printf("\n\tsize %d\n\t\t%p ", event->event_size, vaddr);
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for (j = 0, i = 0; i <
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sizeof(struct TCPAevent) + event->event_size; i++) {
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printf("%02x ", vaddr[i]);
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if ((i+1) % 8 == 0) {
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for (k = 0; k < 8; k++)
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printf("%c", isprint(vaddr[j+k]) ?
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vaddr[j+k] : '.');
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printf("\n\t\t%p ", &vaddr[i + 1]);
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j = i + 1;
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}
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}
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printf("\n"); }
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#endif
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acpi_print_tcpa(event);
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vaddr += sizeof(struct TCPAevent) + event->event_size;
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}
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printf(END_COMMENT);
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}
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static void
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acpi_print_srat_memory(ACPI_SRAT_MEM_AFFINITY *mp)
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{
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@ -886,6 +1086,8 @@ acpi_handle_rsdt(ACPI_TABLE_HEADER *rsdp)
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acpi_handle_mcfg(sdp);
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else if (!memcmp(sdp->Signature, ACPI_SIG_SRAT, 4))
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acpi_handle_srat(sdp);
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else if (!memcmp(sdp->Signature, ACPI_SIG_TCPA, 4))
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acpi_handle_tcpa(sdp);
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else {
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printf(BEGIN_COMMENT);
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acpi_print_sdt(sdp);
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@ -55,6 +55,78 @@
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/* Find and map the RSD PTR structure and return it for parsing */
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ACPI_TABLE_HEADER *sdt_load_devmem(void);
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/* TCPA */
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struct TCPAbody {
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ACPI_TABLE_HEADER header;
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uint16_t platform_class;
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#define ACPI_TCPA_BIOS_CLIENT 0x00
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#define ACPI_TCPA_BIOS_SERVER 0x01
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union {
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struct client_hdr {
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uint32_t log_max_len __packed;
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uint64_t log_start_addr __packed;
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} client;
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struct server_hdr {
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uint16_t reserved;
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uint64_t log_max_len __packed;
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uint64_t log_start_addr __packed;
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} server;
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};
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} __packed;
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struct TCPAevent {
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u_int32_t pcr_index;
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u_int32_t event_type;
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u_int8_t pcr_value[20];
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u_int32_t event_size;
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u_int8_t event_data[0];
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};
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struct TCPApc_event {
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u_int32_t event_id;
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u_int32_t event_size;
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u_int8_t event_data[0];
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};
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enum TCPAevent_types {
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PREBOOT = 0,
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POST_CODE,
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UNUSED,
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NO_ACTION,
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SEPARATOR,
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ACTION,
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EVENT_TAG,
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SCRTM_CONTENTS,
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SCRTM_VERSION,
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CPU_MICROCODE,
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PLATFORM_CONFIG_FLAGS,
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TABLE_OF_DEVICES,
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COMPACT_HASH,
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IPL,
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IPL_PARTITION_DATA,
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NONHOST_CODE,
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NONHOST_CONFIG,
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NONHOST_INFO,
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EVENT_TYPE_MAX,
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};
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enum TCPApcclient_ids {
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SMBIOS = 1,
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BIS_CERT,
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POST_BIOS_ROM,
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ESCD,
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CMOS,
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NVRAM,
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OPTION_ROM_EXEC,
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OPTION_ROM_CONFIG,
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OPTION_ROM_MICROCODE = 10,
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S_CRTM_VERSION,
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S_CRTM_CONTENTS,
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POST_CONTENTS,
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HOST_TABLE_OF_DEVICES,
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PCCLIENT_ID_MAX,
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};
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/*
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* Load the DSDT from a previous save file. Note that other tables are
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* not saved (i.e. FADT)
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