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[85.23.51.1]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-395dca7bcddsm20698161fa.16.2026.05.24.22.08.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 May 2026 22:08:48 -0700 (PDT) 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, =?UTF-8?q?Mika=20Penttil=C3=A4?= , David Hildenbrand , Jason Gunthorpe , Leon Romanovsky , Alistair Popple , Balbir Singh , Zi Yan , Matthew Brost , Andrew Morton , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Subject: [PATCH v11 1/5] mm/Kconfig: changes for migrate on fault for device pages Date: Mon, 25 May 2026 08:08:26 +0300 Message-ID: <20260525050830.100254-2-mpenttil@redhat.com> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20260525050830.100254-1-mpenttil@redhat.com> References: <20260525050830.100254-1-mpenttil@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Mika Penttilä 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 Cc: David Hildenbrand Cc: Lorenzo Stoakes Cc: "Liam R. Howlett" Cc: Vlastimil Babka Cc: Mike Rapoport Cc: Suren Baghdasaryan Cc: Michal Hocko Signed-off-by: Mika Penttilä Acked-by: David Hildenbrand (Arm) --- mm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/Kconfig b/mm/Kconfig index e8bf1e9e6ad9..0d8db75ffc23 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -646,6 +646,7 @@ config MIGRATION config DEVICE_MIGRATION def_bool MIGRATION && ZONE_DEVICE + select HMM_MIRROR config ARCH_ENABLE_HUGEPAGE_MIGRATION bool @@ -1221,6 +1222,7 @@ config ZONE_DEVICE config HMM_MIRROR bool depends on MMU + select MMU_NOTIFIER config GET_FREE_REGION bool -- 2.50.0