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smbios: add extra comments to smbios_get_table_legacy() 

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20240314152302.2324164-22-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2024-03-14 16:23:02 +01:00 committed by Michael S. Tsirkin
parent 86e372ad1e
commit bb949df637
1 changed files with 7 additions and 0 deletions
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7
hw/smbios/smbios_legacy.c
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@ -151,6 +151,9 @@ uint8_t *smbios_get_table_legacy(size_t *length, Error **errp)
smbios_entries_len = sizeof(uint16_t); smbios_entries_len = sizeof(uint16_t);
smbios_entries = g_malloc0(smbios_entries_len); smbios_entries = g_malloc0(smbios_entries_len);
/*
* build a set of legacy smbios_table entries using user provided blobs
*/
for (i = 0, usr_offset = 0; usr_blobs_sizes && i < usr_blobs_sizes->len; for (i = 0, usr_offset = 0; usr_blobs_sizes && i < usr_blobs_sizes->len;
i++) i++)
{ {
@ -166,6 +169,10 @@ uint8_t *smbios_get_table_legacy(size_t *length, Error **errp)
table->header.length = cpu_to_le16(sizeof(*table) + size); table->header.length = cpu_to_le16(sizeof(*table) + size);
memcpy(table->data, header, size); memcpy(table->data, header, size);
smbios_entries_len += sizeof(*table) + size; smbios_entries_len += sizeof(*table) + size;
/*
* update number of entries in the blob,
* see SeaBIOS: qemu_cfg_legacy():QEMU_CFG_SMBIOS_ENTRIES
*/
(*(uint16_t *)smbios_entries) = (*(uint16_t *)smbios_entries) =
cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
usr_offset += size; usr_offset += size;