On 04.02.22 15:04, Michael S. Tsirkin wrote: > On Fri, Feb 04, 2022 at 02:29:39PM +0100, David Hildenbrand wrote: >> On 04.02.22 14:24, Michael S. Tsirkin wrote: >>> On Wed, Jan 19, 2022 at 09:35:05AM +0100, David Hildenbrand wrote: >>>> On 19.01.22 08:46, Gavin Shan wrote: >>>>> Hi Michael, >>>>> >>>>> On 1/19/22 3:39 PM, Michael S. Tsirkin wrote: >>>>>> On Wed, Jan 19, 2022 at 09:05:51AM +0800, Gavin Shan wrote: >>>>>>> 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 <[email protected]> >>>>>>> Acked-by: David Hildenbrand <[email protected]> >>>>>>> Acked-by: Jonathan Cameron <[email protected]> >>>>>>> Acked-by: Michael S. Tsirkin <[email protected]> >>>>>>> --- >>>>>>> v3: Pick ack-by tags from Jonathan and Michael >>>>>>> --- >>>>>>> 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. >>>>>>> >>>>>> >>>>>> BTW isn't there a symbol saying "memory hotplug" that we can depend on? >>>>>> >>>> >>>> You mean >>>> >>>> depends on MEMORY_HOTPLUG >>>> depends on MEMORY_HOTREMOVE >>>> >>>> We still need a manual opt-in from architectures, because devil's in the >>>> detail. (e.g., memblock stuff we had to adjust) >>> >>> Is there any chance of documenting some of this here? The current comment >>> makes it >>> look like it's just a question of whitelisting an architecture. >> >> I can send a patch to add more details. > > oks so that will be a patch on top?
Yes, it's independent of arm64 support. -- Thanks, David / dhildenb _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
