Re: [PATCH v3 02/23] x86/numa: Add 'nohmat' option

Dan Williams
2020-08-01T16:37:03Z

On Fri, Jul 31, 2020 at 8:51 PM Randy Dunlap <rdunlap@infradead.org> wrote:
>
> On 7/31/20 8:25 PM, Dan Williams wrote:
> > Disable parsing of the HMAT for debug, to workaround broken platform
> > instances, or cases where it is otherwise not wanted.
> >
> > ---
> > arch/x86/mm/numa.c | 2 ++
> > drivers/acpi/numa/hmat.c | 8 +++++++-
> > include/acpi/acpi_numa.h | 8 ++++++++
> > 3 files changed, 17 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
> > index 87c52822cc44..f3805bbaa784 100644
> > --- a/arch/x86/mm/numa.c
> > +++ b/arch/x86/mm/numa.c
> > @@ -41,6 +41,8 @@ static __init int numa_setup(char *opt)
> > return numa_emu_cmdline(opt + 5);
> > if (!strncmp(opt, "noacpi", 6))
> > disable_srat();
> > + if (!strncmp(opt, "nohmat", 6))
> > + disable_hmat();
>
> Hopefully that will be documented in
> Documentation/x86/x86_64/boot-options.rst.

Sorry, yes, you gave that feedback before. I can do a quick respin
with this and the kbuild-robot compile fixups.