[PATCH v2] drivers/virtio: Enable virtio mem for ARM64

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This enables virtio-mem device support by allowing to enable the
corresponding kernel config option (CONFIG_VIRTIO_MEM) on the
architecture.

Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
---
v2: Improved the comments about the kernel config option (David)
---
 drivers/virtio/Kconfig | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index 34f80b7a8a64..74c8b0c7bc33 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -106,7 +106,7 @@ config VIRTIO_BALLOON
 config VIRTIO_MEM
 	tristate "Virtio mem driver"
 	default m
-	depends on X86_64
+	depends on X86_64 || ARM64
 	depends on VIRTIO
 	depends on MEMORY_HOTPLUG
 	depends on MEMORY_HOTREMOVE
@@ -116,8 +116,9 @@ config VIRTIO_MEM
 	 This driver provides access to virtio-mem paravirtualized memory
 	 devices, allowing to hotplug and hotunplug memory.
 
-	 This driver was only tested under x86-64, but should theoretically
-	 work on all architectures that support memory hotplug and hotremove.
+	 This driver was only tested under x86-64 and arm64, but should
+	 theoretically work on all architectures that support memory hotplug
+	 and hotremove.
 
 	 If unsure, say M.
 
-- 
2.23.0

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