Re: [PATCH v2 03/18] cxl/pci: cxl_hdm_decode_init: Move comment

From: Robert Richter
Date: Mon Feb 10 2025 - 06:07:51 EST


On 07.02.25 17:19:50, Gregory Price wrote:
> On Fri, Feb 07, 2025 at 09:36:08PM +0000, Jim Kao wrote:
> > Do we have any limitation for HDM Decoder Range in Linux Kernel ?
> > We has observed that Linux might be hung if range is larger than 8TB.
> >
> > Jim
> >
>
> Do you have any additional details? dmesg/core dumps, etc?
>
> Seems pretty suspicious that it happens right on the 44-bit boundary.

I am not aware of limitations from CXL spec or driver. AMD platforms
support a much larger physical address range.

-Robert