Patchwork [1/9] smbios: Add a function to directly add an entry

login
register
mail settings
Submitter Corey Minyard
Date July 9, 2012, 7:17 p.m.
Message ID <1341861429-6297-2-git-send-email-minyard@acm.org>
Download mbox | patch
Permalink /patch/169927/
State New
Headers show

Comments

Corey Minyard - July 9, 2012, 7:17 p.m.
From: Corey Minyard <cminyard@mvista.com>

There was no way to directly add a table entry to the SMBIOS table,
even though the BIOS supports this.  So add a function to do this.
This is in preparation for the IPMI handler adding it's SMBIOS table
entry.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
 hw/smbios.c |   27 +++++++++++++++++++++++++++
 hw/smbios.h |   15 ++++++++-------
 2 files changed, 35 insertions(+), 7 deletions(-)

Patch

diff --git a/hw/smbios.c b/hw/smbios.c
index c57237d..98c7f99 100644
--- a/hw/smbios.c
+++ b/hw/smbios.c
@@ -178,6 +178,33 @@  static void smbios_build_type_1_fields(const char *t)
                          strlen(buf) + 1, buf);
 }
 
+int smbios_table_entry_add(struct smbios_structure_header *entry)
+{
+    struct smbios_table *table;
+    struct smbios_structure_header *header;
+    unsigned int size = entry->length;
+
+    if (!smbios_entries) {
+        smbios_entries_len = sizeof(uint16_t);
+        smbios_entries = g_malloc0(smbios_entries_len);
+    }
+    smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
+			       sizeof(*table) + size);
+    table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
+    table->header.type = SMBIOS_TABLE_ENTRY;
+    table->header.length = cpu_to_le16(sizeof(*table) + size);
+
+    header = (struct smbios_structure_header *)(table->data);
+    memcpy(header, entry, size);
+
+    smbios_check_collision(header->type, SMBIOS_TABLE_ENTRY);
+
+    smbios_entries_len += sizeof(*table) + size;
+    (*(uint16_t *)smbios_entries) =
+	cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
+    return 0;
+}
+
 int smbios_entry_add(const char *t)
 {
     char buf[1024];
diff --git a/hw/smbios.h b/hw/smbios.h
index 94e3641..6431a15 100644
--- a/hw/smbios.h
+++ b/hw/smbios.h
@@ -13,21 +13,22 @@ 
  *
  */
 
+/* This goes at the beginning of every SMBIOS structure. */
+struct smbios_structure_header {
+    uint8_t type;
+    uint8_t length;
+    uint16_t handle;
+} QEMU_PACKED;
+
 int smbios_entry_add(const char *t);
 void smbios_add_field(int type, int offset, int len, void *data);
 uint8_t *smbios_get_table(size_t *length);
+int smbios_table_entry_add(struct smbios_structure_header *entry);
 
 /*
  * SMBIOS spec defined tables
  */
 
-/* This goes at the beginning of every SMBIOS structure. */
-struct smbios_structure_header {
-    uint8_t type;
-    uint8_t length;
-    uint16_t handle;
-} QEMU_PACKED;
-
 /* SMBIOS type 0 - BIOS Information */
 struct smbios_type_0 {
     struct smbios_structure_header header;