Messages in this thread | | | Date | Wed, 13 Oct 2021 18:57:49 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH] x86: add support DM&P devices |
| |
On Fri, Oct 08, 2021 at 06:22:46PM +0200, Marcos Del Sol Vives wrote: > +config CPU_SUP_DMP_32 > + default y > + bool "Support DM&P processors" if PROCESSOR_SELECT > + depends on !64BIT
You mean
depends on X86_32
?
Wikipedia says those things are 32-bit.
> + help > + This enables detection, tunings and quirks for DM&P processors > + > + You need this enabled if you want your kernel to run on a > + DM&P CPU. Disabling this option on other types of CPUs
So I'm not sure about the nomenclature: those CPUs are called Vortex86 and DM&P is simply the next owner of the IP:
"Vortex86 previously belonged to SiS, which got the basic design from Rise Technology.[1] SiS sold it to DM&P Electronics[2] in Taiwan."
So I'm thinking we should call everything Vortex, the file vortex.c, the vendor define X86_VENDOR_VORTEX and so on.
> + makes the kernel a tiny bit smaller. Disabling it on a DM&P > + CPU might render the kernel unbootable.
Why unbootable? It looks like those are perfect clones: "No special init required for DM&P processors." it says in the patch. :)
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
| |