On Thu, 13 Mar 2025 11:02:37 -0400 Gregory Price <gourry@xxxxxxxxxx> wrote: > On Thu, Mar 13, 2025 at 02:09:07PM +0800, Yuquan Wang wrote: > > @@ -441,6 +441,11 @@ static int __init acpi_parse_cfmws(union acpi_subtable_headers *header, > > start = cfmws->base_hpa; > > end = cfmws->base_hpa + cfmws->window_size; > > > > + if (srat_disabled()) { > > + pr_err("SRAT is missing or bad while processing CFMWS.\n"); > > + return -EINVAL; > > + } > > + > > I thought the srat was optional regardless of the presence of a CFMWS. > Is this not the case? True in theory, but do we want to support it? I'd vote no unless someone is shipping such a system and can't fix it up. Jonathan > > ~Gregory >