Re: [PATCH v4 06/13] x86/platform/uv: Add and Decode Arch Type in UVsystab

From: Mike Travis
Date: Mon Oct 05 2020 - 17:36:50 EST




On 10/5/2020 2:21 PM, Borislav Petkov wrote:
On Mon, Oct 05, 2020 at 03:39:22PM -0500, Mike Travis wrote:
A patch to add and process the UV Arch Type field in the UVsystab passed
from UV BIOS to the kernel.

What does that mean?


There have been recent cases where OEM's want to use the OEM_ID in the ACPI tables to brand their own product. The UV BIOS used that field to tell the Linux kernel which UV arch the running system is. The Arch Type in the UVsystab (also created by UV BIOS) now carries that field in systems that support it.