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authorIgor Mammedov <imammedo@redhat.com>2021-09-24 08:28:00 -0400
committerMichael S. Tsirkin <mst@redhat.com>2021-10-05 17:30:57 -0400
commitcf68410bc98914ee9be5cb5a127a1212056ab83a (patch)
treea0964c466cc281e0f82f5e1def893e65388e7a9b /hw/i386
parent41041e57085a9454c45a6a751babfca70306f361 (diff)
acpi: build_facs: use build_append_int_noprefix() API to compose table
Drop usage of packed structures and explicit endian conversions when building table and use endian agnostic build_append_int_noprefix() API to build it. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20210924122802.1455362-34-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386')
-rw-r--r--hw/i386/acpi-build.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index d9e2b5dc30..81418b7911 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -345,13 +345,23 @@ static void acpi_align_size(GArray *blob, unsigned align)
g_array_set_size(blob, ROUND_UP(acpi_data_len(blob), align));
}
-/* FACS */
+/*
+ * ACPI spec 1.0b,
+ * 5.2.6 Firmware ACPI Control Structure
+ */
static void
build_facs(GArray *table_data)
{
- AcpiFacsDescriptorRev1 *facs = acpi_data_push(table_data, sizeof *facs);
- memcpy(&facs->signature, "FACS", 4);
- facs->length = cpu_to_le32(sizeof(*facs));
+ const char *sig = "FACS";
+ const uint8_t reserved[40] = {};
+
+ g_array_append_vals(table_data, sig, 4); /* Signature */
+ build_append_int_noprefix(table_data, 64, 4); /* Length */
+ build_append_int_noprefix(table_data, 0, 4); /* Hardware Signature */
+ build_append_int_noprefix(table_data, 0, 4); /* Firmware Waking Vector */
+ build_append_int_noprefix(table_data, 0, 4); /* Global Lock */
+ build_append_int_noprefix(table_data, 0, 4); /* Flags */
+ g_array_append_vals(table_data, reserved, 40); /* Reserved */
}
static void build_append_pcihp_notify_entry(Aml *method, int slot)