diff mbox

[v2,12/23] FADT: restructure test sequence around reduced hardware mode

Message ID 1455925199-8587-13-git-send-email-al.stone@linaro.org
State New
Headers show

Commit Message

Al Stone Feb. 19, 2016, 11:39 p.m. UTC 
Since a prior patch added a test of of the reduced hardware fields, we
can now resequence the tests so that we only test the fields we must.

If we are not in reduced hardware mode, we test everything.  If we are,
we ignore tests for many fields.  They are simply irrelevant, and if the
fields are non-zero, that would have been caught in the prior patch.

There are also several fields that really cannot be reliably tested; we
cannot gather enough info to know whether they are correct or not, or
the field is allowed to be any value that it can hold.  Simply log the
value for these fields, but only when in the proper mode.

Signed-off-by: Al Stone <al.stone@linaro.org>

Acked-by: Colin Ian King <colin.king@canonical.com>

Acked-by: Alex Hung <alex.hung@canonical.com>

---
 src/acpi/fadt/fadt.c | 40 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 36 insertions(+), 4 deletions(-)

-- 
2.5.0
diff mbox

Patch

diff --git a/src/acpi/fadt/fadt.c b/src/acpi/fadt/fadt.c
index 5b126fb..ad3531c 100644
--- a/src/acpi/fadt/fadt.c
+++ b/src/acpi/fadt/fadt.c
@@ -872,10 +872,34 @@  static int fadt_test1(fwts_framework *fw)
 	acpi_table_check_fadt_reserved(fw);
 	acpi_table_check_fadt_pm_profile(fw);
 	acpi_table_check_fadt_reduced_hardware(fw);
-	acpi_table_check_fadt_smi(fw, fadt, &passed);
-	acpi_table_check_fadt_pm_tmr(fw, fadt, &passed);
-	acpi_table_check_fadt_gpe(fw, fadt, &passed);
-	acpi_table_check_fadt_pm_addr(fw, fadt, &passed);
+
+	/*
+	 * If a field can be tested, we call a function to do so.  If
+	 * any value is reasonable and allowable, we simply log the value.
+	 * For example, the SCI_INT is one byte and can be from 0..255, and
+	 * there is no other info (as far as this author knows) that can be
+	 * used to verify that the value is correct.
+	 */
+	if (!fwts_acpi_is_reduced_hardware(fadt)) {
+		fwts_log_info(fw, "FADT SCI_INT is %" PRIu8, fadt->sci_int);
+		acpi_table_check_fadt_smi(fw, fadt, &passed);
+		acpi_table_check_fadt_pm_tmr(fw, fadt, &passed);
+		acpi_table_check_fadt_gpe(fw, fadt, &passed);
+		acpi_table_check_fadt_pm_addr(fw, fadt, &passed);
+		fwts_log_info(fw, "FADT GPE1_BASE is %" PRIu8, fadt->gpe1_base);
+
+		fwts_log_info(fw, "FADT FLUSH_SIZE is %" PRIu16,
+			      fadt->flush_size);
+		fwts_log_info(fw, "FADT FLUSH_STRIDE is %" PRIu16,
+			      fadt->flush_stride);
+		fwts_log_info(fw, "FADT DUTY_OFFSET is %" PRIu8,
+			      fadt->duty_offset);
+		fwts_log_info(fw, "FADT DUTY_WIDTH is %" PRIu8,
+			      fadt->duty_width);
+		fwts_log_info(fw, "FADT DAY_ALRM is %" PRIu8, fadt->day_alrm);
+		fwts_log_info(fw, "FADT MON_ALRM is %" PRIu8, fadt->mon_alrm);
+		fwts_log_info(fw, "FADT CENTURY is %" PRIu8, fadt->century);
+	}
 
 	/*
 	 * Bug LP: #833644
@@ -902,6 +926,14 @@  static int fadt_test1(fwts_framework *fw)
 	}
 	*/
 
+	/*
+	 * Cannot really test the Hypervisor Vendor Identity since
+	 * the value is provided by the hypervisor to the OS (as a
+	 * sign that the ACPI tables have been fabricated), if it
+	 * being used at all.  Or, it's set to zero.
+	 */
+	fwts_log_info(fw, "FADT Hypervisor Vendor Identity is %" PRIu64,
+		      fadt->hypervisor_id);
 	if (passed)
 		fwts_passed(fw, "No issues found in FADT table.");