This patch adds support for SMBIOS 3.0 entry point. When caller invokes
smbios_set_defaults(), it can specify entry point as 2.1 or 3.0. Then
smbios_get_tables() will return the entry point table in right format.
Signed-off-by: Wei Huang <w...@redhat.com>
---
hw/i386/pc_piix.c | 3 +-
hw/i386/pc_q35.c | 3 +-
hw/smbios/smbios.c | 72 +++++++++++++++++++++++++++++++---------------
include/hw/smbios/smbios.h | 54 ++++++++++++++++++++++++----------
4 files changed, 92 insertions(+), 40 deletions(-)
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 653c710..04636b1 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -173,7 +173,8 @@ static void pc_init1(MachineState *machine)
MachineClass *mc = MACHINE_GET_CLASS(machine);
/* These values are guest ABI, do not change */
smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)",
- mc->name, smbios_legacy_mode, smbios_uuid_encoded);
+ mc->name, smbios_legacy_mode, smbios_uuid_encoded,
+ SMBIOS_ENTRY_POINT_21);
}
/* allocate ram and load rom/bios */
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index d83df14..061507d 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -165,7 +165,8 @@ static void pc_q35_init(MachineState *machine)
if (smbios_defaults) {
/* These values are guest ABI, do not change */
smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
- mc->name, smbios_legacy_mode, smbios_uuid_encoded);
+ mc->name, smbios_legacy_mode, smbios_uuid_encoded,
+ SMBIOS_ENTRY_POINT_21);
}
/* allocate ram and load rom/bios */
diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
index 08ba62a..ea3a32d 100644
--- a/hw/smbios/smbios.c
+++ b/hw/smbios/smbios.c
@@ -48,6 +48,7 @@ static uint8_t *smbios_entries;
static size_t smbios_entries_len;
static bool smbios_legacy = true;
static bool smbios_uuid_encoded = true;
+static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
/* end: legacy structures & constants for <= 2.0 machines */
@@ -55,7 +56,8 @@ static uint8_t *smbios_tables;
static size_t smbios_tables_len;
static unsigned smbios_table_max;
static unsigned smbios_table_cnt;
-static struct smbios_entry_point ep;
+static SmbiosEntryPoint ep;
+static size_t ep_length;
static int smbios_type4_count = 0;
static bool smbios_immutable;
@@ -771,11 +773,12 @@ void smbios_set_cpuid(uint32_t version, uint32_t features)
void smbios_set_defaults(const char *manufacturer, const char *product,
const char *version, bool legacy_mode,
- bool uuid_encoded)
+ bool uuid_encoded, SmbiosEntryPointType ep_type)
{
smbios_have_defaults = true;
smbios_legacy = legacy_mode;
smbios_uuid_encoded = uuid_encoded;
+ smbios_ep_type = ep_type;
/* drop unwanted version of command-line file blob(s) */
if (smbios_legacy) {
@@ -808,26 +811,49 @@ void smbios_set_defaults(const char *manufacturer, const
char *product,
static void smbios_entry_point_setup(void)
{
- memcpy(ep.anchor_string, "_SM_", 4);
- memcpy(ep.intermediate_anchor_string, "_DMI_", 5);
- ep.length = sizeof(struct smbios_entry_point);
- ep.entry_point_revision = 0; /* formatted_area reserved, per spec v2.1+ */
- memset(ep.formatted_area, 0, 5);
-
- /* compliant with smbios spec v2.8 */
- ep.smbios_major_version = 2;
- ep.smbios_minor_version = 8;
- ep.smbios_bcd_revision = 0x28;
-
- /* set during table construction, but BIOS may override: */
- ep.structure_table_length = cpu_to_le16(smbios_tables_len);
- ep.max_structure_size = cpu_to_le16(smbios_table_max);
- ep.number_of_structures = cpu_to_le16(smbios_table_cnt);
-
- /* BIOS must recalculate: */
- ep.checksum = 0;
- ep.intermediate_checksum = 0;
- ep.structure_table_address = cpu_to_le32(0);
+ if (smbios_ep_type == SMBIOS_ENTRY_POINT_21) {
+ memcpy(ep.ep21.anchor_string, "_SM_", 4);
+ memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
+ ep.ep21.length = sizeof(struct smbios_21_entry_point);
+ ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
+ memset(ep.ep21.formatted_area, 0, 5);
+
+ /* compliant with smbios spec v2.8 */
+ ep.ep21.smbios_major_version = 2;
+ ep.ep21.smbios_minor_version = 8;
+ ep.ep21.smbios_bcd_revision = 0x28;
+
+ /* set during table construction, but BIOS may override: */
+ ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
+ ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
+ ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
+
+ /* BIOS must recalculate: */
+ ep.ep21.checksum = 0;
+ ep.ep21.intermediate_checksum = 0;
+ ep.ep21.structure_table_address = cpu_to_le32(0);
+
+ /* setup the anchor point length */
+ ep_length = sizeof (struct smbios_21_entry_point);
+ } else if (smbios_ep_type == SMBIOS_ENTRY_POINT_30) {
+ memcpy(ep.ep30.anchor_string, "_SM3_", 5);
+ ep.ep30.length = sizeof(struct smbios_30_entry_point);
+ ep.ep30.entry_point_revision = 1;
+
+ /* compliant with smbios spec 3.0 */
+ ep.ep30.smbios_major_version = 3;
+ ep.ep30.smbios_minor_version = 0;
+ ep.ep30.smbios_doc_rev = 0;
+
+ /* set during table construct, but BIOS might override */
+ ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
+
+ /* BIOS must recalculate */
+ ep.ep30.checksum = 0;
+ ep.ep30.structure_table_address = cpu_to_le64(0);
+
+ ep_length = sizeof (struct smbios_30_entry_point);
+ }
}
void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
@@ -886,7 +912,7 @@ void smbios_get_tables(const struct smbios_phys_mem_area
*mem_array,
*tables = smbios_tables;
*tables_len = smbios_tables_len;
*anchor = (uint8_t *)&ep;
- *anchor_len = sizeof(struct smbios_entry_point);
+ *anchor_len = ep_length;
}
static void save_opt(const char **dest, QemuOpts *opts, const char *name)
diff --git a/include/hw/smbios/smbios.h b/include/hw/smbios/smbios.h
index e727233..ba0e68f 100644
--- a/include/hw/smbios/smbios.h
+++ b/include/hw/smbios/smbios.h
@@ -24,26 +24,20 @@ struct smbios_phys_mem_area {
uint64_t length;
};
-void smbios_entry_add(QemuOpts *opts);
-void smbios_set_cpuid(uint32_t version, uint32_t features);
-void smbios_set_defaults(const char *manufacturer, const char *product,
- const char *version, bool legacy_mode,
- bool uuid_encoded);
-uint8_t *smbios_get_table_legacy(size_t *length);
-void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
- const unsigned int mem_array_size,
- const ram_addr_t ram_size,
- uint8_t **tables, size_t *tables_len,
- uint8_t **anchor, size_t *anchor_len);
-
/*
* SMBIOS spec defined tables
*/
+typedef enum SmbiosEntryPointType {
+ SMBIOS_ENTRY_POINT_21,
+ SMBIOS_ENTRY_POINT_30,
+} SmbiosEntryPointType;
-/* SMBIOS entry point (anchor).
- * BIOS must place this at a 16-bit-aligned address between 0xf0000 and
0xfffff.
+/* SMBIOS entry point
+ * Note: BIOS must place this at a 16-bit-aligned address between 0xf0000
+ * and 0xfffff.
*/
-struct smbios_entry_point {
+/* SMBIOS 2.1 entry point */
+struct smbios_21_entry_point {
uint8_t anchor_string[4];
uint8_t checksum;
uint8_t length;
@@ -60,6 +54,25 @@ struct smbios_entry_point {
uint8_t smbios_bcd_revision;
} QEMU_PACKED;
+/* SMBIOS 3.0 entry point */
+struct smbios_30_entry_point {
+ uint8_t anchor_string[5];
+ uint8_t checksum;
+ uint8_t length;
+ uint8_t smbios_major_version;
+ uint8_t smbios_minor_version;
+ uint8_t smbios_doc_rev;
+ uint8_t entry_point_revision;
+ uint8_t _reserved;
+ uint32_t structure_table_max_size;
+ uint64_t structure_table_address;
+} QEMU_PACKED;
+
+typedef union QEMU_PACKED {
+ struct smbios_21_entry_point ep21;
+ struct smbios_30_entry_point ep30;
+} SmbiosEntryPoint;
+
/* This goes at the beginning of every SMBIOS structure. */
struct smbios_structure_header {
uint8_t type;
@@ -234,4 +247,15 @@ struct smbios_type_127 {
struct smbios_structure_header header;
} QEMU_PACKED;
+void smbios_entry_add(QemuOpts *opts);
+void smbios_set_cpuid(uint32_t version, uint32_t features);
+void smbios_set_defaults(const char *manufacturer, const char *product,
+ const char *version, bool legacy_mode,
+ bool uuid_encoded, SmbiosEntryPointType ep_type);
+uint8_t *smbios_get_table_legacy(size_t *length);
+void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
+ const unsigned int mem_array_size,
+ const ram_addr_t ram_size,
+ uint8_t **tables, size_t *tables_len,
+ uint8_t **anchor, size_t *anchor_len);
#endif /*QEMU_SMBIOS_H */
--
1.8.3.1
