Teach acpidump to dump the DMA Remapping Reporting table (aka DMAR).
The DMAR table is documented in chapter 8 of the Intel VT-d specification. Reviewed by: jhb Obtained from: NetApp
This commit is contained in:
Neel Natu
parent
f26612d3ac
commit
ec6509897a
@ -123,6 +123,31 @@ static const char *TCPA_pcclient_strings[] = {
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"Table of Devices",
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};
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#define PRINTFLAG_END() printflag_end()
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static char pf_sep = '{';
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static void
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printflag_end(void)
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{
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if (pf_sep != '{') {
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printf("}");
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pf_sep = '{';
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}
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printf("\n");
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}
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static void
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printflag(uint64_t var, uint64_t mask, const char *name)
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{
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if (var & mask) {
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printf("%c%s", pf_sep, name);
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pf_sep = ',';
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}
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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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@ -729,6 +754,238 @@ acpi_handle_tcpa(ACPI_TABLE_HEADER *sdp)
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printf(END_COMMENT);
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}
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static const char *
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devscope_type2str(int type)
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{
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static char typebuf[16];
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switch (type) {
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case 1:
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return ("PCI Endpoint Device");
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case 2:
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return ("PCI Sub-Hierarchy");
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case 3:
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return ("IOAPIC");
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case 4:
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return ("HPET");
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default:
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snprintf(typebuf, sizeof(typebuf), "%d", type);
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return (typebuf);
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}
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}
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static int
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acpi_handle_dmar_devscope(void *addr, int remaining)
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{
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char sep;
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int pathlen;
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ACPI_DMAR_PCI_PATH *path, *pathend;
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ACPI_DMAR_DEVICE_SCOPE *devscope = addr;
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if (remaining < (int)sizeof(ACPI_DMAR_DEVICE_SCOPE))
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return (-1);
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if (remaining < devscope->Length)
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return (-1);
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printf("\n");
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printf("\t\tType=%s\n", devscope_type2str(devscope->EntryType));
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printf("\t\tLength=%d\n", devscope->Length);
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printf("\t\tEnumerationId=%d\n", devscope->EnumerationId);
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printf("\t\tStartBusNumber=%d\n", devscope->Bus);
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path = (ACPI_DMAR_PCI_PATH *)(devscope + 1);
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pathlen = devscope->Length - sizeof(ACPI_DMAR_DEVICE_SCOPE);
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pathend = path + pathlen / sizeof(ACPI_DMAR_PCI_PATH);
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if (path < pathend) {
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sep = '{';
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printf("\t\tPath=");
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do {
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printf("%c%d:%d", sep, path->Device, path->Function);
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sep=',';
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path++;
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} while (path < pathend);
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printf("}\n");
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}
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return (devscope->Length);
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}
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static void
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acpi_handle_dmar_drhd(ACPI_DMAR_HARDWARE_UNIT *drhd)
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{
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char *cp;
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int remaining, consumed;
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printf("\n");
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printf("\tType=DRHD\n");
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printf("\tLength=%d\n", drhd->Header.Length);
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#define PRINTFLAG(var, flag) printflag((var), ACPI_DMAR_## flag, #flag)
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printf("\tFlags=");
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PRINTFLAG(drhd->Flags, INCLUDE_ALL);
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PRINTFLAG_END();
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#undef PRINTFLAG
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printf("\tSegment=%d\n", drhd->Segment);
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printf("\tAddress=0x%0jx\n", drhd->Address);
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remaining = drhd->Header.Length - sizeof(ACPI_DMAR_HARDWARE_UNIT);
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if (remaining > 0)
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printf("\tDevice Scope:");
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while (remaining > 0) {
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cp = (char *)drhd + drhd->Header.Length - remaining;
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consumed = acpi_handle_dmar_devscope(cp, remaining);
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if (consumed <= 0)
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break;
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else
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remaining -= consumed;
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}
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}
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static void
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acpi_handle_dmar_rmrr(ACPI_DMAR_RESERVED_MEMORY *rmrr)
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{
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char *cp;
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int remaining, consumed;
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printf("\n");
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printf("\tType=RMRR\n");
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printf("\tLength=%d\n", rmrr->Header.Length);
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printf("\tSegment=%d\n", rmrr->Segment);
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printf("\tBaseAddress=0x%0jx\n", rmrr->BaseAddress);
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printf("\tLimitAddress=0x%0jx\n", rmrr->EndAddress);
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remaining = rmrr->Header.Length - sizeof(ACPI_DMAR_RESERVED_MEMORY);
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if (remaining > 0)
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printf("\tDevice Scope:");
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while (remaining > 0) {
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cp = (char *)rmrr + rmrr->Header.Length - remaining;
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consumed = acpi_handle_dmar_devscope(cp, remaining);
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if (consumed <= 0)
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break;
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else
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remaining -= consumed;
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}
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}
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static void
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acpi_handle_dmar_atsr(ACPI_DMAR_ATSR *atsr)
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{
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char *cp;
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int remaining, consumed;
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printf("\n");
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printf("\tType=ATSR\n");
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printf("\tLength=%d\n", atsr->Header.Length);
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#define PRINTFLAG(var, flag) printflag((var), ACPI_DMAR_## flag, #flag)
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printf("\tFlags=");
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PRINTFLAG(atsr->Flags, ALL_PORTS);
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PRINTFLAG_END();
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#undef PRINTFLAG
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printf("\tSegment=%d\n", atsr->Segment);
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remaining = atsr->Header.Length - sizeof(ACPI_DMAR_ATSR);
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if (remaining > 0)
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printf("\tDevice Scope:");
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while (remaining > 0) {
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cp = (char *)atsr + atsr->Header.Length - remaining;
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consumed = acpi_handle_dmar_devscope(cp, remaining);
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if (consumed <= 0)
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break;
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else
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remaining -= consumed;
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}
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}
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static void
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acpi_handle_dmar_rhsa(ACPI_DMAR_RHSA *rhsa)
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{
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printf("\n");
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printf("\tType=RHSA\n");
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printf("\tLength=%d\n", rhsa->Header.Length);
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printf("\tBaseAddress=0x%0jx\n", rhsa->BaseAddress);
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printf("\tProximityDomain=0x%08x\n", rhsa->ProximityDomain);
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}
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static int
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acpi_handle_dmar_remapping_structure(void *addr, int remaining)
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{
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ACPI_DMAR_HEADER *hdr = addr;
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if (remaining < (int)sizeof(ACPI_DMAR_HEADER))
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return (-1);
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if (remaining < hdr->Length)
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return (-1);
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switch (hdr->Type) {
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case ACPI_DMAR_TYPE_HARDWARE_UNIT:
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acpi_handle_dmar_drhd(addr);
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break;
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case ACPI_DMAR_TYPE_RESERVED_MEMORY:
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acpi_handle_dmar_rmrr(addr);
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break;
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case ACPI_DMAR_TYPE_ATSR:
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acpi_handle_dmar_atsr(addr);
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break;
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case ACPI_DMAR_HARDWARE_AFFINITY:
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acpi_handle_dmar_rhsa(addr);
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break;
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default:
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printf("\n");
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printf("\tType=%d\n", hdr->Type);
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printf("\tLength=%d\n", hdr->Length);
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break;
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}
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return (hdr->Length);
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}
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#ifndef ACPI_DMAR_X2APIC_OPT_OUT
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#define ACPI_DMAR_X2APIC_OPT_OUT (0x2)
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#endif
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static void
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acpi_handle_dmar(ACPI_TABLE_HEADER *sdp)
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{
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char *cp;
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int remaining, consumed;
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ACPI_TABLE_DMAR *dmar;
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printf(BEGIN_COMMENT);
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acpi_print_sdt(sdp);
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dmar = (ACPI_TABLE_DMAR *)sdp;
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printf("\tHost Address Width=%d\n", dmar->Width + 1);
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#define PRINTFLAG(var, flag) printflag((var), ACPI_DMAR_## flag, #flag)
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printf("\tFlags=");
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PRINTFLAG(dmar->Flags, INTR_REMAP);
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PRINTFLAG(dmar->Flags, X2APIC_OPT_OUT);
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PRINTFLAG_END();
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#undef PRINTFLAG
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remaining = sdp->Length - sizeof(ACPI_TABLE_DMAR);
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while (remaining > 0) {
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cp = (char *)sdp + sdp->Length - remaining;
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consumed = acpi_handle_dmar_remapping_structure(cp, remaining);
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if (consumed <= 0)
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break;
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else
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remaining -= consumed;
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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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@ -854,7 +1111,6 @@ acpi_print_fadt(ACPI_TABLE_HEADER *sdp)
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{
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ACPI_TABLE_FADT *fadt;
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const char *pm;
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char sep;
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fadt = (ACPI_TABLE_FADT *)sdp;
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printf(BEGIN_COMMENT);
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@ -914,25 +1170,17 @@ acpi_print_fadt(ACPI_TABLE_HEADER *sdp)
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printf("\tDAY_ALRM=%d, MON_ALRM=%d, CENTURY=%d\n",
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fadt->DayAlarm, fadt->MonthAlarm, fadt->Century);
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#define PRINTFLAG(var, flag) do { \
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if ((var) & ACPI_FADT_## flag) { \
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printf("%c%s", sep, #flag); sep = ','; \
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} \
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} while (0)
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#define PRINTFLAG(var, flag) printflag((var), ACPI_FADT_## flag, #flag)
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printf("\tIAPC_BOOT_ARCH=");
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sep = '{';
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PRINTFLAG(fadt->BootFlags, LEGACY_DEVICES);
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PRINTFLAG(fadt->BootFlags, 8042);
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PRINTFLAG(fadt->BootFlags, NO_VGA);
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PRINTFLAG(fadt->BootFlags, NO_MSI);
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PRINTFLAG(fadt->BootFlags, NO_ASPM);
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if (fadt->BootFlags != 0)
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printf("}");
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printf("\n");
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PRINTFLAG_END();
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printf("\tFlags=");
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sep = '{';
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PRINTFLAG(fadt->Flags, WBINVD);
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PRINTFLAG(fadt->Flags, WBINVD_FLUSH);
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PRINTFLAG(fadt->Flags, C1_SUPPORTED);
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@ -953,8 +1201,7 @@ acpi_print_fadt(ACPI_TABLE_HEADER *sdp)
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PRINTFLAG(fadt->Flags, REMOTE_POWER_ON);
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PRINTFLAG(fadt->Flags, APIC_CLUSTER);
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PRINTFLAG(fadt->Flags, APIC_PHYSICAL);
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if (fadt->Flags != 0)
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printf("}\n");
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PRINTFLAG_END();
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#undef PRINTFLAG
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@ -1127,6 +1374,8 @@ acpi_handle_rsdt(ACPI_TABLE_HEADER *rsdp)
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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 if (!memcmp(sdp->Signature, ACPI_SIG_DMAR, 4))
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acpi_handle_dmar(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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@ -97,6 +97,7 @@ flag, the
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utility dumps contents of the following tables:
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.Pp
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.Bl -tag -offset indent -width 12345 -compact
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.It DMAR
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.It DSDT
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.It ECDT
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.It FACS
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