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SMBIOS: Update Type 0 struct generator for machines >= 2.1

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Update how type 0 (bios info) structures are generated, as follows:

  - convert bios_characteristics field to uin64_t (instead of
    uint8_t[8]), as described in the current smbios spec (v2.8)

  - enable "virtual machine" bit in bios_characteristics_extension_bits

  - add command line option to enable "uefi supported" bit in
    bios_characteristics_extension_bits

These updates should make this optional structure more useful when
used with edk2/ovmf. Only pc machines >= 2.1 are affected, and only
when a type 0 structure is explicitly specified on the command line.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Gabriel L. Somlo 2014-05-19 10:09:54 -04:00 • committed by Michael S. Tsirkin
parent fb5be2e833
commit 84351843eb
3 changed files with 14 additions and 10 deletions
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2
include/hw/i386/smbios.h
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@ -64,7 +64,7 @@ struct smbios_type_0 {
uint16_t bios_starting_address_segment;
uint8_t bios_release_date_str;
uint8_t bios_rom_size;
uint8_t bios_characteristics[8];
uint64_t bios_characteristics;
uint8_t bios_characteristics_extension_bytes[2];
uint8_t system_bios_major_release;
uint8_t system_bios_minor_release;