This is the follow up of [1]: [PATCH v1 0/3] mm/memory_hotplug: Make virtio-mem play nicely with kexec-tools I realized that this is not only helpful for virtio-mem, but also for dax/kmem - it's a fix for that use case (see patch #3) of persistent memory. Also, while testing, I discovered that kexec-tools will *not* add dax/kmem memory (anything not directly under the root when parsing /proc/iomem) to the elfcorehdr, so this memory will never get included in a dump. This probably has to be fixed in kexec-tools - virtio-mem will require this as well. v1 -> v2: - Don't change the resource name - Rename the flag to MHP_NO_FIRMWARE_MEMMAP to reflect what it is doing - Rephrase subjects/descriptions - Use the flag for dax/kmem I'll have to rebase virtio-mem on these changes, there will be a resend. [1] https://lkml.kernel.org/r/20200429160803.109056-1-david@xxxxxxxxxx David Hildenbrand (3): mm/memory_hotplug: Prepare passing flags to add_memory() and friends mm/memory_hotplug: Introduce MHP_NO_FIRMWARE_MEMMAP device-dax: Add system ram (add_memory()) with MHP_NO_FIRMWARE_MEMMAP arch/powerpc/platforms/powernv/memtrace.c | 2 +- arch/powerpc/platforms/pseries/hotplug-memory.c | 2 +- drivers/acpi/acpi_memhotplug.c | 2 +- drivers/base/memory.c | 2 +- drivers/dax/kmem.c | 3 ++- drivers/hv/hv_balloon.c | 2 +- drivers/s390/char/sclp_cmd.c | 2 +- drivers/xen/balloon.c | 2 +- include/linux/memory_hotplug.h | 15 ++++++++++++--- mm/memory_hotplug.c | 14 ++++++++------ 10 files changed, 29 insertions(+), 17 deletions(-) -- 2.25.3
