drivers/virtio: Clarify CONFIG_VIRTIO_MEM for unsupported architectures

Let's make it clearer that simply unlocking CONFIG_VIRTIO_MEM on an
architecture is most probably not sufficient to have it working as
expected.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Gavin Shan <gshan@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220610094737.65254-1-david@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index afb9051..02bbccd 100644 (file)
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -123,9 +123,11 @@ 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 and arm64, but should
-        theoretically work on all architectures that support memory hotplug
-        and hotremove.
+        This driver currently only supports x86-64 and arm64. Although it
+        should compile on other architectures that implement memory
+        hot(un)plug, architecture-specific and/or common
+        code changes may be required for virtio-mem, kdump and kexec to work as
+        expected.
 
         If unsure, say M.