Hi David, Thanks for your work. I tried this version with cloud-hypervisor master. It worked very well. Best, Hui > 2020年5月7日 22:01，David Hildenbrand <david@xxxxxxxxxx> 写道： > > This series is based on v5.7-rc4. The patches are located at: > https://github.com/davidhildenbrand/linux.git virtio-mem-v4 > > This is basically a resend of v3 [1], now based on v5.7-rc4 and restested. > One patch was reshuffled and two ACKs I missed to add were added. The > rebase did not require any modifications to patches. > > Details about virtio-mem can be found in the cover letter of v2 [2]. A > basic QEMU implementation was posted yesterday [3]. > > [1] https://lkml.kernel.org/r/20200507103119.11219-1-david@xxxxxxxxxx > [2] https://lkml.kernel.org/r/20200311171422.10484-1-david@xxxxxxxxxx > [3] https://lkml.kernel.org/r/20200506094948.76388-1-david@xxxxxxxxxx > > v3 -> v4: > - Move "MAINTAINERS: Add myself as virtio-mem maintainer" to #2 > - Add two ACKs from Andrew (in reply to v2) > -- "mm: Allow to offline unmovable PageOffline() pages via ..." > -- "mm/memory_hotplug: Introduce offline_and_remove_memory()" > > v2 -> v3: > - "virtio-mem: Paravirtualized memory hotplug" > -- Include "linux/slab.h" to fix build issues > -- Remember the "region_size", helpful for patch #11 > -- Minor simplifaction in virtio_mem_overlaps_range() > -- Use notifier_from_errno() instead of notifier_to_errno() in notifier > -- More reliable check for added memory when unloading the driver > - "virtio-mem: Allow to specify an ACPI PXM as nid" > -- Also print the nid > - Added patch #11-#15 > > David Hildenbrand (15): > virtio-mem: Paravirtualized memory hotplug > MAINTAINERS: Add myself as virtio-mem maintainer > virtio-mem: Allow to specify an ACPI PXM as nid > virtio-mem: Paravirtualized memory hotunplug part 1 > virtio-mem: Paravirtualized memory hotunplug part 2 > mm: Allow to offline unmovable PageOffline() pages via > MEM_GOING_OFFLINE > virtio-mem: Allow to offline partially unplugged memory blocks > mm/memory_hotplug: Introduce offline_and_remove_memory() > virtio-mem: Offline and remove completely unplugged memory blocks > virtio-mem: Better retry handling > virtio-mem: Add parent resource for all added "System RAM" > virtio-mem: Drop manual check for already present memory > virtio-mem: Unplug subblocks right-to-left > virtio-mem: Use -ETXTBSY as error code if the device is busy > virtio-mem: Try to unplug the complete online memory block first > > MAINTAINERS | 7 + > drivers/acpi/numa/srat.c | 1 + > drivers/virtio/Kconfig | 17 + > drivers/virtio/Makefile | 1 + > drivers/virtio/virtio_mem.c | 1962 +++++++++++++++++++++++++++++++ > include/linux/memory_hotplug.h | 1 + > include/linux/page-flags.h | 10 + > include/uapi/linux/virtio_ids.h | 1 + > include/uapi/linux/virtio_mem.h | 208 ++++ > mm/memory_hotplug.c | 81 +- > mm/page_alloc.c | 26 + > mm/page_isolation.c | 9 + > 12 files changed, 2314 insertions(+), 10 deletions(-) > create mode 100644 drivers/virtio/virtio_mem.c > create mode 100644 include/uapi/linux/virtio_mem.h > > -- > 2.25.3
