Re: [Qemu-devel] [PATCH v3 05/13] tests: acpi: skip FACS table if board uses hw reduced ACPI profile

[Wei Yang <richardw.yang@linux.intel.com>]

On Thu, Apr 25, 2019 at 07:34:41AM +0200, Igor Mammedov wrote:
>If FADT has HW_REDUCED_ACPI flag set, do not attempt to fetch
>FACS as it's not provided by the board.
>
>Signed-off-by: Igor Mammedov <imammedo@redhat.com>
>Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Wei Yang <richardw.yang@linux.intel.com>

>---
> tests/bios-tables-test.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
>diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
>index ed62a17..e944d00 100644
>--- a/tests/bios-tables-test.c
>+++ b/tests/bios-tables-test.c
>@@ -146,9 +146,13 @@ static void test_acpi_fadt_table(test_data *data)
>     g_assert(compare_signature(&table, "FACP"));
> 
>     /* Since DSDT/FACS isn't in RSDT, add them to ASL test list manually */
>-    acpi_fetch_table(data->qts, &table.aml, &table.aml_len,
>-                     fadt_aml + 36 /* FIRMWARE_CTRL */, "FACS", false);
>-    g_array_append_val(data->tables, table);
>+    memcpy(&val, fadt_aml + 112 /* Flags */, 4);
>+    val = le32_to_cpu(val);
>+    if (!(val & 1UL << 20 /* HW_REDUCED_ACPI */)) {
>+        acpi_fetch_table(data->qts, &table.aml, &table.aml_len,
>+                         fadt_aml + 36 /* FIRMWARE_CTRL */, "FACS", false);
>+        g_array_append_val(data->tables, table);
>+    }
> 
>     memcpy(&val, fadt_aml + dsdt_offset, 4);
>     val = le32_to_cpu(val);
>-- 
>2.7.4

-- 
Wei Yang
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