Acpi Genuineintel---intel64-family-6-model-58 [work]

The string "acpi genuineintel---intel64-family-6-model-58" refers to an Advanced Configuration and Power Interface (ACPI) hardware identifier for an Intel Ivy Bridge processor. Hardware Report: Intel Family 6 Model 58

Detailed Breakdown of the String

The string is formatted for the Advanced Configuration and Power Interface (ACPI), a standard used by operating systems to discover and configure hardware components. acpi genuineintel---intel64-family-6-model-58

6. Performance Considerations

For OS/ACPI developers working with this CPU: Examples:

• Examples:
  • Microarchitecture: Ivy Bridge (22 nm process)
  • Specific SKUs: Intel Xeon E5-2400 v2 and E5-4600 v2 series, as well as some third-generation Core i7-3700/3900 (Ivy Bridge-E) processors.
  • Key Features: Support for AVX (Advanced Vector Extensions), AES-NI, Turbo Boost 2.0, and Hyper-Threading.
  • Socket: LGA 2011 (for server variants) or LGA 1155 (for desktop).

  2.3 Virtualized environments

  Some hypervisors (especially buggy KVM or QEMU defaults) pass an incomplete or manually mangled ACPI processor object. The triple-dash (---) is abnormal; it likely denotes a string concatenation artifact from printk formatting or a malformed DSDT. On real Ivy Bridge hardware, you should see a clean "ACPI: GenuineIntel (Family 6 Model 58)" without dashes. Microarchitecture : Ivy Bridge (22 nm process) Specific

  1. ACPI (Advanced Configuration and Power Interface) This indicates that the identifier is being reported by the system's firmware (BIOS/UEFI) to the Operating System kernel. It is the standard interface used for power management and hardware discovery.

  • Some ACPI sleep states (S3 suspend/resume) may need acpi_osi=Linux or acpi_rev_override=1.
  • Temperature sensors work via coretemp module.

  Part 6: The Future – Will You Still See This String?

  As of 2025, Ivy Bridge (Family 6 Model 58) is over a decade old. However, millions of legacy servers, industrial PCs, and embedded systems still run this hardware. Linux kernel maintainers have not removed the debug print because it costs nothing and helps diagnose power regression for old platforms.