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:

quoted

On Fri, Sep 18, 2020 at 12:18:41PM +0200, Jean-Philippe Brucker wrote:

quoted

From: Fenghua Yu <redacted>

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 <redacted>
Reviewed-by: Tony Luck <tony.luck@intel.com>
---
https://lore.kernel.org/linux-iommu/1600187413-163670-8-git-send-email-fenghua.yu@intel.com/ (local)
---
 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

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