The following commit has been merged into the x86/pasid branch of tip: Commit-ID: 52ad9bc64c74167466e70e0df4b99ee5ccef0078 Gitweb: https://git.kernel.org/tip/52ad9bc64c74167466e70e0df4b99ee5ccef0078 Author: Fenghua Yu <[email protected]> AuthorDate: Tue, 15 Sep 2020 09:30:11 -07:00 Committer: Borislav Petkov <[email protected]> CommitterDate: Thu, 17 Sep 2020 20:22:15 +02:00
mm: Add a pasid member to struct mm_struct A PASID is shared by all threads in a process. So the logical place to keep track of it is in the mm_struct. Both ARM and x86 would use this PASID. [ bp: Massage commit message. ] Suggested-by: Christoph Hellwig <[email protected]> Signed-off-by: Fenghua Yu <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Reviewed-by: Tony Luck <[email protected]> Link: https://lkml.kernel.org/r/[email protected] --- include/linux/mm_types.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 496c3ff..1ff0615 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -542,6 +542,10 @@ struct mm_struct { atomic_long_t hugetlb_usage; #endif struct work_struct async_put_work; + +#ifdef CONFIG_IOMMU_SUPPORT + u32 pasid; +#endif } __randomize_layout; /*
