Re: [PATCH v10 01/13] mm: Define pasid in mm

Jean-Philippe Brucker
2020-09-30T09:15:01Z

On Mon, Sep 28, 2020 at 10:43:26PM +0000, Fenghua Yu wrote:
> Hi, Will and Jean,
>
> On Mon, Sep 28, 2020 at 11:22:51PM +0100, Will Deacon wrote:
> > On Fri, Sep 18, 2020 at 12:18:41PM +0200, Jean-Philippe Brucker wrote:
> > > From: Fenghua Yu <fenghua.yu@intel.com>
> > >
> > > PASID is shared by all threads in a process. So the logical place to keep
> > > track of it is in the "mm". Both ARM and X86 need to use the PASID in the
> > > "mm".
> > >
> > > Suggested-by: Christoph Hellwig <hch@infradead.org>
> > > Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
> > > Reviewed-by: Tony Luck <tony.luck@intel.com>
> > > ---
> > > https://lore.kernel.org/linux-iommu/1600187413-163670-8-git-send-email-fenghua.yu@intel.com/
> > > ---
> > > include/linux/mm_types.h | 4 ++++
> > > 1 file changed, 4 insertions(+)
> >
> > Acked-by: Will Deacon <will@kernel.org>
>
> FYI. This patch is in x86 maintainers tree tip:x86/pasid now as part of
> the x86 PASID MSR series.

Ah I missed that, glad to see it in v5.10

Thanks,
Jean