[PATCH v5 0/6] Implement all missing SMBIOS types required by distro tooling
Ilias Apalodimas
ilias.apalodimas at linaro.org
Thu Feb 12 13:44:54 CET 2026
That's weird.
I tried again on -next and got this
Handle 0x0006, DMI type 9, 24 bytes
System Slot Information
Designation: Not Specified
Type: Unknown
Data Bus Width: Unknown
Current Usage: Unknown
Length: Unknown
Characteristics: Unknown
Bus Address: 0000:00:00.0
Data Bus Width (Base): 0
Peer Devices: 0
Height: Not applicable
Handle 0x0007, DMI type 16, 23 bytes
Physical Memory Array
Location: Unknown
Use: Unknown
Error Correction Type: Unknown
Maximum Capacity: 0 kB
Error Information Handle: Not Provided
Number Of Devices: 1
Handle 0x0008, DMI type 17, 104 bytes
Memory Device
Array Handle: 0x0000
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: <OUT OF SPEC>
Set: None
Locator: <BAD INDEX>
Bank Locator: <BAD INDEX>
Type: Unknown
Type Detail: Other Unknown Fast-paged Static Column Pseudo-static
RAMBus Synchronous
Handle 0x0009, DMI type 19, 31 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000000003FF
Range Size: 1 kB
Physical Array Handle: 0x0000
Partition Width: 1
Handle 0x000A, DMI type 32, 11 bytes
System Boot Information
Status: No errors detected
I am using a debian unstable with a 6.18 kernel
Cheers
/Ilias
On Thu, 12 Feb 2026 at 02:24, Raymond Mao <raymondmaoca at gmail.com> wrote:
>
> Hi Ilias
>
> On Wed, Feb 11, 2026 at 10:20 AM Ilias Apalodimas
> <ilias.apalodimas at linaro.org> wrote:
> >
> > On Wed, 11 Feb 2026 at 16:30, Raymond Mao <raymondmaoca at gmail.com> wrote:
> > >
> > > Hi Ilias,
> > >
> > > On Wed, Feb 11, 2026 at 4:32 AM Ilias Apalodimas
> > > <ilias.apalodimas at linaro.org> wrote:
> > > >
> > > > Hi all,
> > > >
> > > > Apologies for the late reply.
> > > >
> > > > I did test the patches but I see something weird on smbios type 17.
> > > >
> > > > Handle 0x0008, DMI type 17, 104 bytes
> > > > Memory Device
> > > > Array Handle: 0x0000
> > > > Error Information Handle: Not Provided
> > > > Total Width: Unknown
> > > > Data Width: Unknown
> > > > Size: No Module Installed
> > > > Form Factor: <OUT OF SPEC>
> > > > Set: None
> > > > Locator: <BAD INDEX>
> > > > Bank Locator: <BAD INDEX>
> > > > Type: Unknown
> > > > Type Detail: Other Unknown Fast-paged Static Column
> > > > Pseudo-static RAMBus Synchronous
> > > > Speed: 512 MT/s
> > > > Manufacturer: <BAD INDEX>
> > > > Serial Number: Not Specified
> > > > Asset Tag: Not Specified
> > > > Part Number: Not Specified
> > > > Rank: Unknown
> > > > Configured Memory Speed: Unknown
> > > > Minimum Voltage: Unknown
> > > > Maximum Voltage: Unknown
> > > > Configured Voltage: Unknown
> > > > Memory Technology: <OUT OF SPEC>
> > > > Memory Operating Mode Capability: None
> > > > Firmware Version: Not Specified
> > > > Module Manufacturer ID: Bank 3, Hex 0x04
> > > > Module Product ID: Unknown
> > > > Memory Subsystem Controller Manufacturer ID: Unknown
> > > > Memory Subsystem Controller Product ID: Unknown
> > > > Non-Volatile Size: 16383 PB
> > > > Volatile Size: Unknown
> > > > Cache Size: Unknown
> > > > Logical Size: Unknown
> > > >
> > > > Any idea what <BAD INDEX> and <OUT OF SPEC> represent?
> > > > I tested this in QEMU
> > > >
> > >
> > > I just retested it by below qemu cmd after I rebased it to the current master:
> > > qemu-system-aarch64 -bios u-boot.bin -machine virt -cpu cortex-a57 -m
> > > 2G -nographic
> > >
> > > Below is the type17 I got:
> > > ```
> > > Handle 0x0008, DMI type 17, 104 bytes at 0xbe678141
> > > Memory Device:
> > > Physical Memory Array Handle: 0x0000
> > > Memory Error Information Handle: 0xfffe
> > > Total Width: 0x0000
> > > Data Width: 0x0000
> > > Size: 0xffff
> > > Form Factor: Unknown
> > > Device Set: 0x00ff
> > > Device Locator:
> > > Bank Locator:
> > > Memory Type: Unknown
> > > Type Detail: 0x0004
> > > Speed: 0x0000
> > > Manufacturer:
> > > Serial Number:
> > > Asset Tag:
> > > Part Number:
> > > Attributes: 0x0000
> > > Extended Size: 0x00000000
> > > Configured Memory Speed: 0x0000
> > > Minimum voltage: 0x0000
> > > Maximum voltage: 0x0000
> > > Configured voltage: 0x0000
> > > Memory Technology: Unknown
> > > Memory Operating Mode Capability: 0x0004
> > > Firmware Version:
> > > Module Manufacturer ID: 0x0000
> > > Module Product ID: 0x0000
> > > Memory Subsystem Controller Manufacturer ID: 0x0000
> > > Memory Subsystem Controller Product ID: 0x0000
> > > Non-volatile Size: 0xffffffffffffffff
> > > Volatile Size: 0xffffffffffffffff
> > > Cache Size: 0xffffffffffffffff
> > > Logical Size: 0xffffffffffffffff
> > > Extended Speed: 0x0000
> > > Extended Configured Memory Speed: 0x0000
> > > PMIC0 Manufacturer ID: 0x0000
> > > PMIC0 Revision Number: 0x0000
> > > RCD Manufacturer ID: 0x0000
> > > RCD Revision Number: 0x0000
> > > ```
> > >
> > > If you didn't use smbios_generic.dtsi to insert new nodes, or add new
> > > 'memory@' / 'memory-controller@' nodes into your DT, you should get
> > > the same result as mine by default.
> > > If you still can not get it, can you give me your build instruction
> > > and qemu cmd for reproducing?
> >
> > I used qemu_arm64_lwip_defconfig
> >
> > qemu-system-aarch64 -m 1024 -smp 2 -nographic -cpu cortex-a57 \
> > -machine virt,secure=off -bios u-boot.bin -chardev
> > socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \
> > -tpmdev emulator,id=tpm0,chardev=chrtpm -device
> > tpm-tis-device,tpmdev=tpm0 \
> > -device virtio-rng-pci -drive
> > id=os,if=none,file=../debian.qcow2 -device virtio-blk-device,drive=os
> > is the command line
> >
>
> I did these steps with a clean build (exactly the same as your ones):
> $ make O=out_lwip qemu_arm64_lwip_defconfig
> $ CROSS_COMPILE=aarch64-none-linux-gnu- make O=out_lwip -j4 all
> $ cd out_lwip
> $ killall swtpm
> $ rm -rf /tmp/mytpm1
> $ mkdir -p /tmp/mytpm1
> $ swtpm_setup --tpmstate /tmp/mytpm1 --tpm2 --pcr-banks sha256
> $ swtpm socket --tpmstate dir=/tmp/mytpm1 --ctrl
> type=unixio,path=/tmp/mytpm1/swtpm-sock --log level=40 --tpm2 -t -d
> $ qemu-system-aarch64 -m 1024 -smp 2 -nographic -cpu cortex-a57 \
> -machine virt,secure=off -bios u-boot.bin -chardev
> socket,id=chrtpm,path=/tmp/mytpm1/swtpm-sock \
> -tpmdev emulator,id=tpm0,chardev=chrtpm -device tpm-tis-device,tpmdev=tpm0 \
> -device virtio-rng-pci -drive id=os,if=none,file=../debian.qcow2
> -device virtio-blk-device,drive=os
>
> SMBIOS type17 shows no difference:
> ```
> Handle 0x0008, DMI type 17, 104 bytes at 0x7e64b141
> Memory Device:
> Physical Memory Array Handle: 0x0000
> Memory Error Information Handle: 0xfffe
> Total Width: 0x0000
> Data Width: 0x0000
> Size: 0xffff
> Form Factor: Unknown
> Device Set: 0x00ff
> Device Locator:
> Bank Locator:
> Memory Type: Unknown
> Type Detail: 0x0004
> Speed: 0x0000
> Manufacturer:
> Serial Number:
> Asset Tag:
> Part Number:
> Attributes: 0x0000
> Extended Size: 0x00000000
> Configured Memory Speed: 0x0000
> Minimum voltage: 0x0000
> Maximum voltage: 0x0000
> Configured voltage: 0x0000
> Memory Technology: Unknown
> Memory Operating Mode Capability: 0x0004
> Firmware Version:
> Module Manufacturer ID: 0x0000
> Module Product ID: 0x0000
> Memory Subsystem Controller Manufacturer ID: 0x0000
> Memory Subsystem Controller Product ID: 0x0000
> Non-volatile Size: 0xffffffffffffffff
> Volatile Size: 0xffffffffffffffff
> Cache Size: 0xffffffffffffffff
> Logical Size: 0xffffffffffffffff
> Extended Speed: 0x0000
> Extended Configured Memory Speed: 0x0000
> PMIC0 Manufacturer ID: 0x0000
> PMIC0 Revision Number: 0x0000
> RCD Manufacturer ID: 0x0000
> RCD Revision Number: 0x0000
> ```
>
> By the way, I don't think it has any relationship with swtpm and the
> linux distro, so I also simply tried:
> $ qemu-system-aarch64 -m 1024 -smp 2 -nographic -cpu cortex-a57 \
> -machine virt,secure=off -bios u-boot.bin
>
> All works with the same type17 output.
>
> Regards,
> Raymond
>
> > Cheers
> > /Ilias
> >
> >
> > >
> > > Regards,
> > > Raymond
> > >
> > >
> > > > Regards
> > > > /Ilias
> > > >
> > > > On Wed, 4 Feb 2026 at 18:13, Tom Rini <trini at konsulko.com> wrote:
> > > > >
> > > > > On Wed, Feb 04, 2026 at 11:12:42AM -0500, Raymond Mao wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Anyone have a chance to review this patch set? It is the last piece of
> > > > > > work to support all required SMBIOS types in U-Boot.
> > > > >
> > > > > I've been waiting for Ilias or Heinrich to have time to look at this.
> > > > >
> > > > > --
> > > > > Tom
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