[PATCH 1/3] acpi: add MSCT table sanity check

[Alex Hung]

Signed-off-by: Alex Hung <alex.hung at canonical.com>
---
 src/Makefile.am      |   1 +
 src/acpi/msct/msct.c | 108 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 109 insertions(+)
 create mode 100644 src/acpi/msct/msct.c

diff --git a/src/Makefile.am b/src/Makefile.am
index 2de2585..dbef055 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -63,6 +63,7 @@ fwts_SOURCES = main.c 				\
 	acpi/madt/madt.c			\
 	acpi/mcfg/mcfg.c 			\
 	acpi/mchi/mchi.c 			\
+	acpi/msct/msct.c 			\
 	acpi/msdm/msdm.c 			\
 	acpi/method/method.c 			\
 	acpi/osilinux/osilinux.c 		\
diff --git a/src/acpi/msct/msct.c b/src/acpi/msct/msct.c
new file mode 100644
index 0000000..72b02a5
--- /dev/null
+++ b/src/acpi/msct/msct.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2016 Canonical
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include "fwts.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <string.h>
+#include <ctype.h>
+#include "fwts_acpi_object_eval.h"
+
+static fwts_acpi_table_info *table;
+
+static int msct_init(fwts_framework *fw)
+{
+	if (fwts_acpi_find_table(fw, "MSCT", 0, &table) != FWTS_OK) {
+		fwts_log_error(fw, "Cannot read ACPI tables.");
+		return FWTS_ERROR;
+	}
+	if (table == NULL || (table && table->length == 0)) {
+		fwts_log_error(fw, "ACPI MSCT table does not exist, skipping test");
+		return FWTS_SKIP;
+	}
+	return FWTS_OK;
+}
+
+/*
+ *  MSCT Maximum System Characteristics Table
+ */
+static int msct_test1(fwts_framework *fw)
+{
+	ACPI_TABLE_MSCT *msct = (ACPI_TABLE_MSCT *)table->data;
+	uint32_t numProximity = 0, OffsetProximity = 0;
+	uint32_t i;
+	bool passed = true;
+
+	fwts_log_info_verbatum(fw, "MSCT Maximum System Characteristics Table:");
+	fwts_log_info_verbatum(fw, "  Proximity Offset:       0x%8.8" PRIX32, msct->ProximityOffset);
+	fwts_log_info_verbatum(fw, "  Max Proximity Domains:  0x%8.8" PRIX32, msct->MaxProximityDomains);
+	fwts_log_info_verbatum(fw, "  Max Clock Domains:      0x%8.8" PRIX32, msct->MaxClockDomains);
+	fwts_log_info_verbatum(fw, "  Max Physical Address:   0x%16.16" PRIX64, msct->MaxAddress);
+
+	if (msct->ProximityOffset < 0x38) {
+		fwts_failed(fw, LOG_LEVEL_MEDIUM,
+			"MSCTBadProximityOffset",
+			"Proximity Domain Information Structures need to be located at Offset 0x38 "
+			"or after, but Proximity Offsetis is 0x%" PRIX32, msct->ProximityOffset);
+		OffsetProximity = 0x38;
+		passed = false;
+	} else
+		OffsetProximity = msct->ProximityOffset;
+
+	numProximity = (msct->Header.Length - OffsetProximity) / sizeof(ACPI_MSCT_PROXIMITY);
+
+	if (numProximity > msct->MaxProximityDomains + 1) {
+		fwts_failed(fw, LOG_LEVEL_MEDIUM,
+			"MSCTBadProimityDomains",
+			"MSCT's Max Proximity Domains is 0x%" PRIX32
+			", but it has 0x%" PRIX32 " Proximity Domain Information Structures",
+			msct->MaxProximityDomains, numProximity);
+		passed = false;
+	}
+
+	fwts_log_nl(fw);
+
+	for (i = 0; i < numProximity; i++) {
+		ACPI_MSCT_PROXIMITY *proximity = (ACPI_MSCT_PROXIMITY *)((char *) msct + OffsetProximity + i * sizeof(ACPI_MSCT_PROXIMITY));
+		fwts_log_info_verbatum(fw, "  Proximity Domain Information Structure %2.2" PRIu8, i);
+		fwts_log_info_verbatum(fw, "    Revision:                      0x%2.2" PRIX8, proximity->Revision);
+		fwts_log_info_verbatum(fw, "    Length:                        0x%2.2" PRIX8, proximity->Length);
+		fwts_log_info_verbatum(fw, "    Proximity Domain Range (low):  0x%8.8" PRIX32, proximity->RangeStart);
+		fwts_log_info_verbatum(fw, "    Proximity Domain Range (high): 0x%8.8" PRIX32, proximity->RangeEnd);
+		fwts_log_info_verbatum(fw, "    Maximum Processor Capacity:    0x%8.8" PRIX32, proximity->ProcessorCapacity);
+		fwts_log_info_verbatum(fw, "    Maximum Memory Capacity:       0x%16.16" PRIX64, proximity->MemoryCapacity);
+		fwts_log_nl(fw);
+	}
+
+	if (passed)
+		fwts_passed(fw, "No issues found in MSCT table.");
+
+	return FWTS_OK;
+}
+
+static fwts_framework_minor_test msct_tests[] = {
+	{ msct_test1, "MSCT Maximum System Characteristics Table test." },
+	{ NULL, NULL }
+};
+
+static fwts_framework_ops msct_ops = {
+	.description = "MSCT Maximum System Characteristics Table test.",
+	.init        = msct_init,
+	.minor_tests = msct_tests
+};
+
+FWTS_REGISTER("msct", &msct_ops, FWTS_TEST_ANYTIME, FWTS_FLAG_BATCH | FWTS_FLAG_TEST_ACPI)
-- 
1.9.1