I have access to a server and want to check its HMAT table.
However, the HMAT table is not present (the SRAT and SLIT are though).
I checked the Linux kernel config and the HMAT is enabled (
CONFIG_ACPI_HMAT=y
and CONFIG_ACPI=y
). So probably the issue is with the hardware and firmware.
Can I enable the HMAT, and if so, how?
Here's the server spec (let me know if more information is needed):
$ uname -a
Linux node0.acpi-tinkering-0.prismgt-pg0.clemson.cloudlab.us 5.15.0-122-generic #132-Ubuntu SMP Thu Aug 29 13:45:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
$ sudo dmidecode -t 2
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.3 present.
Handle 0x0200, DMI type 2, 8 bytes
Base Board Information
Manufacturer: Dell Inc.
Product Name: 024PW1
Version: A00
Serial Number: .13D52G3.CNIVC001610605.
$ sudo dmidecode -t 0
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.3 present.
Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
Vendor: Dell Inc.
Version: 2.8.4
Release Date: 06/23/2022
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 32 MB
Characteristics:
ISA is supported
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
5.25"/360 kB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Function key-initiated network boot is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 2.8
sudo dmidecode -t 4
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.3 present.
Handle 0x0400, DMI type 4, 48 bytes
Processor Information
Socket Designation: CPU1
Type: Central Processor
Family: Zen
Manufacturer: AMD
ID: 11 0F A0 00 FF FB 8B 17
Signature: Family 25, Model 1, Stepping 1
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
HTT (Multi-threading)
Version: AMD EPYC 7543 32-Core Processor
Voltage: 1.8 V
External Clock: 16000 MHz
Max Speed: 3900 MHz
Current Speed: 2800 MHz
Status: Populated, Enabled
Upgrade: Socket SP3
L1 Cache Handle: 0x0700
L2 Cache Handle: 0x0701
L3 Cache Handle: 0x0702
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 32
Core Enabled: 32
Thread Count: 64
Characteristics:
64-bit capable
Multi-Core
Hardware Thread
Execute Protection
Enhanced Virtualization
Handle 0x0401, DMI type 4, 48 bytes
Processor Information
Socket Designation: CPU2
Type: Central Processor
Family: Zen
Manufacturer: AMD
ID: 11 0F A0 00 FF FB 8B 17
Signature: Family 25, Model 1, Stepping 1
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
HTT (Multi-threading)
Version: AMD EPYC 7543 32-Core Processor
Voltage: 1.8 V
External Clock: 16000 MHz
Max Speed: 3900 MHz
Current Speed: 2800 MHz
Status: Populated, Enabled
Upgrade: Socket SP3
L1 Cache Handle: 0x0703
L2 Cache Handle: 0x0704
L3 Cache Handle: 0x0705
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 32
Core Enabled: 32
Thread Count: 64
Characteristics:
64-bit capable
Multi-Core
Hardware Thread
Execute Protection
Enhanced Virtualization
Asked by Matteo
(73 rep)
Dec 6, 2024, 07:34 PM