[PATCH 1/2] acpi: Add BOOT table test (LP: #1465435)

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

ACPI BOOT table appears in a considerable amount of
ACPI firmware so it is a popular table and just has
one field, so it is trivial to test, not much can be
wrong with it.

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/Makefile.am      |   1 +
 src/acpi/boot/boot.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 112 insertions(+)
 create mode 100644 src/acpi/boot/boot.c

diff --git a/src/Makefile.am b/src/Makefile.am
index 3a0e547..4aa1986 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -31,6 +31,7 @@ fwts_SOURCES = main.c 				\
 	acpi/apicinstance/apicinstance.c 	\
 	acpi/battery/battery.c 			\
 	acpi/bert/bert.c			\
+	acpi/boot/boot.c			\
 	acpi/brightness/brightness-helper.c	\
 	acpi/brightness/brightness.c 		\
 	acpi/brightness/autobrightness.c 	\
diff --git a/src/acpi/boot/boot.c b/src/acpi/boot/boot.c
new file mode 100644
index 0000000..0c2e10b
--- /dev/null
+++ b/src/acpi/boot/boot.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2015 Canonical
+ *
+ * Portions of this code original from the Linux-ready Firmware Developer Kit
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#include "fwts.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <string.h>
+
+static fwts_acpi_table_info *table;
+
+static int boot_init(fwts_framework *fw)
+{
+
+	if (fwts_acpi_find_table(fw, "BOOT", 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 BOOT table does not exist, skipping test");
+		return FWTS_SKIP;
+	}
+
+	return FWTS_OK;
+}
+
+/*
+ *  BOOT Table
+ *   see https://msdn.microsoft.com/en-us/windows/hardware/gg463443.aspx
+ */
+static int boot_test1(fwts_framework *fw)
+{
+	bool passed = true;
+	fwts_acpi_table_boot *boot = (fwts_acpi_table_boot *)table->data;
+
+	if (table->length < sizeof(fwts_acpi_table_boot)) {
+		passed = false;
+		fwts_failed(fw, LOG_LEVEL_HIGH,
+			"BOOTTooShort",
+			"BOOT table too short, expecting %zu bytes, "
+			"instead got %zu bytes",
+			sizeof(fwts_acpi_table_boot), table->length);
+		goto done;
+	}
+
+	fwts_log_info_verbatum(fw, "BOOT Table:");
+	fwts_log_info_verbatum(fw, "  CMOS Index:               0x%2.2" PRIx8, boot->cmos_index);
+	fwts_log_info_verbatum(fw, "  Reserved:                 0x%2.2" PRIx8, boot->reserved[0]);
+	fwts_log_info_verbatum(fw, "  Reserved:                 0x%2.2" PRIx8, boot->reserved[1]);
+	fwts_log_info_verbatum(fw, "  Reserved:                 0x%2.2" PRIx8, boot->reserved[2]);
+	fwts_log_nl(fw);
+
+	/*
+	 * If the tables directly from the machine we're running on
+	 * then we can check out the error region too.
+	 */
+	if (table->provenance != FWTS_ACPI_TABLE_FROM_FIRMWARE) {
+		fwts_log_info(fw, "ACPI table loaded from file so fwts will "
+			"skip the read of the CMOS boot register");
+	} else {
+		uint8_t val;
+
+		fwts_cmos_read(boot->cmos_index, &val);
+
+		fwts_log_info_verbatum(fw, "CMOS value:             Bit 0x%" PRIx8, val);
+		fwts_log_info_verbatum(fw, "  PnP OS                [0] 0x%" PRIx8, (val >> 0) & 1);
+		fwts_log_info_verbatum(fw, "  Booting Bit           [1] 0x%" PRIx8, (val >> 1) & 1);
+		fwts_log_info_verbatum(fw, "  DIAG Bit              [2] 0x%" PRIx8, (val >> 2) & 1);
+		fwts_log_info_verbatum(fw, "  SUPPRESSBOOTDISPLAY   [3] 0x%" PRIx8, (val >> 3) & 1);
+		fwts_log_info_verbatum(fw, "  RESERVED            [4-6] 0x%" PRIx8, (val >> 4) & 7);
+		fwts_log_info_verbatum(fw, "  PARITY                [7] 0x%" PRIx8, (val >> 7) & 1);
+		/* Ignore doing parity check sum */
+	}
+done:
+	if (passed)
+		fwts_passed(fw, "No issues found in BOOT table.");
+
+	return FWTS_OK;
+}
+
+static fwts_framework_minor_test boot_tests[] = {
+	{ boot_test1, "BOOT Table test." },
+	{ NULL, NULL }
+};
+
+static fwts_framework_ops boot_ops = {
+	.description = "BOOT Table test.",
+	.init        = boot_init,
+	.minor_tests = boot_tests
+};
+
+FWTS_REGISTER("boot", &boot_ops, FWTS_TEST_ANYTIME, FWTS_FLAG_BATCH | FWTS_FLAG_ROOT_PRIV | FWTS_FLAG_TEST_ACPI)
-- 
2.1.4