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authorMatt DeVillier <matt.devillier@gmail.com>2016-09-02 21:41:26 -0500
committerFelix Held <felix-coreboot@felixheld.de>2021-10-15 00:18:40 +0000
commitd1c1afdf574931eb15c7dec1094c6a9bc3ee60a7 (patch)
tree3279acfa885e238b1f2186d0219f6e2480d6ca93 /src/include
parent291294d137393bb1f4d59b388f287134943f2a95 (diff)
arch/x86/smbios: Add generation of type 20 table
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>
Diffstat (limited to 'src/include')
-rw-r--r--src/include/smbios.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/include/smbios.h b/src/include/smbios.h
index 0b24c15413..fd9fbd40c9 100644
--- a/src/include/smbios.h
+++ b/src/include/smbios.h
@@ -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];