smbios: copy_smbios_30() function

Add new copy_smbios_30() function, that will be used to support
SMBIOS 3.0 entry points.

The SMBIOS 3.0 entry point will be tracked in a separate
SMBios30Addr variable, because both 2.1 and 3.0 entry points may
exist at the same time.

Adjust the smbios_get_tables(), smbios_major_version(), and
smbios_minor_version() helpers to use the SMBIOS 3.0 entry point
if available.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/std/smbios.h b/src/std/smbios.h
index 17fdfed6..208440b1 100644
--- a/src/std/smbios.h
+++ b/src/std/smbios.h
@@ -25,6 +25,19 @@ struct smbios_21_entry_point {
     u8 smbios_bcd_revision;
 } PACKED;
 
+struct smbios_30_entry_point {
+    char signature[5];
+    u8 checksum;
+    u8 length;
+    u8 smbios_major_version;
+    u8 smbios_minor_version;
+    u8 smbios_docrev;
+    u8 entry_point_revision;
+    u8 reserved;
+    u32 structure_table_max_size;
+    u64 structure_table_address;
+} PACKED;
+
 /* This goes at the beginning of every SMBIOS structure. */
 struct smbios_structure_header {
     u8 type;