Dan Williams 2511726515 devdax: Fix soft-reservation memory description ... commit 67feaba413 upstream. The "hmem" platform-devices that are created to represent the platform-advertised "Soft Reserved" memory ranges end up inserting a resource that causes the iomem_resource tree to look like this: 340000000-43fffffff : hmem.0 340000000-43fffffff : Soft Reserved 340000000-43fffffff : dax0.0 This is because insert_resource() reparents ranges when they completely intersect an existing range. This matters because code that uses region_intersects() to scan for a given IORES_DESC will only check that top-level 'hmem.0' resource and not the 'Soft Reserved' descendant. So, to support EINJ (via einj_error_inject()) to inject errors into memory hosted by a dax-device, be sure to describe the memory as IORES_DESC_SOFT_RESERVED. This is a follow-on to: commit b13a3e5fd4 ("ACPI: APEI: Fix _EINJ vs EFI_MEMORY_SP") ...that fixed EINJ support for "Soft Reserved" ranges in the first instance. Fixes: 262b45ae3a ("x86/efi: EFI soft reservation to E820 enumeration") Reported-by: Ricardo Sandoval Torres <ricardo.sandoval.torres@intel.com> Tested-by: Ricardo Sandoval Torres <ricardo.sandoval.torres@intel.com> Cc: <stable@vger.kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Omar Avelar <omar.avelar@intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Mark Gross <markgross@kernel.org> Link: https://lore.kernel.org/r/166397075670.389916.7435722208896316387.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-09-28 11:10:41 +02:00
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hmem	devdax: Fix soft-reservation memory description	2022-09-28 11:10:41 +02:00
pmem	mm/memremap_pages: convert to 'struct range'	2020-10-13 18:38:28 -07:00
bus.c	device-dax: Fix default return code of range_parse()	2021-03-04 11:38:15 +01:00
bus.h	mm/memremap_pages: convert to 'struct range'	2020-10-13 18:38:28 -07:00
dax-private.h	device-dax: add an 'align' attribute	2020-10-13 18:38:28 -07:00
device.c	device-dax: make align a per-device property	2020-10-13 18:38:28 -07:00
Kconfig	mm: fix phys_to_target_node() and memory_add_physaddr_to_nid() exports	2020-11-22 10:48:22 -08:00
kmem.c	mm/memory_hotplug: prepare passing flags to add_memory() and friends	2020-10-16 11:11:18 -07:00
Makefile	ACPI: HMAT: refactor hmat_register_target_device to hmem_register_device	2020-10-13 18:38:27 -07:00
super.c	dax: make sure inodes are flushed before destroy cache	2022-04-08 14:40:16 +02:00