From: mpenttil@redhat.com
To: linux-mm@kvack.org
Cc: dri-devel@lists.freedesktop.org, intel-xe@lists.freedesktop.org,
linux-kernel@vger.kernel.org,
"Mika Penttilä" <mpenttil@redhat.com>,
"David Hildenbrand" <david@kernel.org>,
"Jason Gunthorpe" <jgg@nvidia.com>,
"Leon Romanovsky" <leonro@nvidia.com>,
"Alistair Popple" <apopple@nvidia.com>,
"Balbir Singh" <balbirs@nvidia.com>, "Zi Yan" <ziy@nvidia.com>,
"Matthew Brost" <matthew.brost@intel.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Lorenzo Stoakes" <ljs@kernel.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
"Vlastimil Babka" <vbabka@suse.cz>,
"Mike Rapoport" <rppt@kernel.org>,
"Suren Baghdasaryan" <surenb@google.com>,
"Michal Hocko" <mhocko@suse.com>
Subject: [PATCH v15 01/11] mm/Kconfig: changes for migrate on fault for device pages
Date: Thu, 24 Sep 2026 09:53:03 +0300 [thread overview]
Message-ID: <20260924065313.899730-2-mpenttil@redhat.com> (raw)
In-Reply-To: <20260924065313.899730-1-mpenttil@redhat.com>
From: Mika Penttilä <mpenttil@redhat.com>
HMM depends on MMU notifiers. With the unified HMM/migrate_device
page table walk migrate_device needs HMM enabled.
Enable them explicitly to avoid breaking random configs.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Mika Penttilä <mpenttil@redhat.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Acked-by: Balbir Singh <balbirs@nvidia.com>
---
mm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/Kconfig b/mm/Kconfig
index 604c58199acb..b7a485beb9a7 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -687,6 +687,7 @@ config MIGRATION
config DEVICE_MIGRATION
def_bool MIGRATION && ZONE_DEVICE
+ select HMM_MIRROR
config ARCH_ENABLE_HUGEPAGE_MIGRATION
bool
--
2.55.0
next prev parent reply other threads:[~2026-09-24 6:53 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-24 6:53 [PATCH v15 00/11] migrate on fault for device pages mpenttil
2026-09-24 6:53 ` mpenttil [this message]
2026-09-24 7:11 ` [PATCH v15 01/11] mm/Kconfig: changes for " sashiko-bot
2026-09-24 6:53 ` [PATCH v15 02/11] mm: add helper to convert HMM pfn to migrate pfn mpenttil
2026-09-24 6:53 ` [PATCH v15 03/11] mm/hmm: preparations for HMM to participate in migration mpenttil
2026-09-24 7:09 ` sashiko-bot
2026-09-24 6:53 ` [PATCH v15 04/11] mm/hmm: do the plumbing " mpenttil
2026-09-24 6:53 ` [PATCH v15 05/11] mm/hmm: migrate collection in HMM pagewalk - pte level mpenttil
2026-09-24 7:10 ` sashiko-bot
2026-09-24 6:53 ` [PATCH v15 06/11] mm/hmm: migrate collection in HMM pagewalk - pmd level mpenttil
2026-09-24 7:09 ` sashiko-bot
2026-09-24 6:53 ` [PATCH v15 07/11] mm/hmm: add lazy MMU mode support for migration in HMM pagewalk mpenttil
2026-09-24 6:53 ` [PATCH v15 08/11] mm/hmm: implement rollback for device page " mpenttil
2026-09-24 7:16 ` sashiko-bot
2026-09-24 6:53 ` [PATCH v15 09/11] mm: enable device page migration from " mpenttil
2026-09-24 6:53 ` [PATCH v15 10/11] lib/test_hmm: add a new testcase for the migrate on fault mpenttil
2026-09-24 7:27 ` sashiko-bot
2026-09-24 6:53 ` [PATCH v15 11/11] Documentation/mm/hmm: document migration through hmm_range_fault() mpenttil
2026-09-24 7:28 ` ✗ CI.checkpatch: warning for Migrate on fault for device pages (rev7) Patchwork
2026-09-24 7:30 ` ✓ CI.KUnit: success " Patchwork
2026-09-24 7:46 ` ✗ CI.checksparse: warning " Patchwork
2026-09-24 8:09 ` ✓ Xe.CI.BAT: success " Patchwork
2026-09-24 21:10 ` ✗ Xe.CI.FULL: failure " Patchwork
2026-09-25 9:07 ` [PATCH v15 00/11] migrate on fault for device pages Christoph Hellwig
2026-09-25 10:23 ` Mika Penttilä
2026-09-25 12:47 ` Jason Gunthorpe
2026-09-25 13:22 ` Mika Penttilä
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