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arch/x86/smbios: Add generation of type 20 table

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If available, use data from MEMINFO CBMEM table and saved handles
from type 17/19 tables to generate type 20 (Memory Device Mapped
Address) SMBIOS table.

Windows 10/11 and some other OSes use this table to report the total
memory available on a given device.

Change-Id: I2574d6209d973a8e7f112eb3ef61f5d26986e47b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58271
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matt DeVillier
2016-09-02 21:41:26 -05:00
committed by Felix Held
parent 291294d137
commit d1c1afdf57
2 changed files with 63 additions and 0 deletions
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15
src/include/smbios.h
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@@ -247,6 +247,7 @@ typedef enum {
SMBIOS_PHYS_MEMORY_ARRAY = 16,
SMBIOS_MEMORY_DEVICE = 17,
SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19,
SMBIOS_MEMORY_DEVICE_MAPPED_ADDRESS = 20,
SMBIOS_SYSTEM_BOOT_INFORMATION = 32,
SMBIOS_IPMI_DEVICE_INFORMATION = 38,
SMBIOS_ONBOARD_DEVICES_EXTENDED_INFORMATION = 41,
@@ -880,6 +881,20 @@ struct smbios_type19 {
u8 eos[2];
} __packed;
struct smbios_type20 {
struct smbios_header header;
u32 addr_start;
u32 addr_end;
u16 memory_device_handle;
u16 memory_array_mapped_address_handle;
u8 partition_row_pos;
u8 interleave_pos;
u8 interleave_depth;
u64 ext_addr_start;
u64 ext_addr_end;
u8 eos[2];
} __packed;
struct smbios_type32 {
struct smbios_header header;
u8 reserved[6];