Baoquan He 32fbe52465 crash: use macro to add crashk_res into iomem early for specific arch ... There are regression reports[1][2] that crashkernel region on x86_64 can't be added into iomem tree sometime. This causes the later failure of kdump loading. This happened after commit 4a693ce65b ("kdump: defer the insertion of crashkernel resources") was merged. Even though, these reported issues are proved to be related to other component, they are just exposed after above commmit applied, I still would like to keep crashk_res and crashk_low_res being added into iomem early as before because the early adding has been always there on x86_64 and working very well. For safety of kdump, Let's change it back. Here, add a macro HAVE_ARCH_ADD_CRASH_RES_TO_IOMEM_EARLY to limit that only ARCH defining the macro can have the early adding crashk_res/_low_res into iomem. Then define HAVE_ARCH_ADD_CRASH_RES_TO_IOMEM_EARLY on x86 to enable it. Note: In reserve_crashkernel_low(), there's a remnant of crashk_low_res handling which was mistakenly added back in commit 85fcde402d ("kexec: split crashkernel reservation code out from crash_core.c"). [1] [PATCH V2] x86/kexec: do not update E820 kexec table for setup_data https://lore.kernel.org/all/Zfv8iCL6CT2JqLIC@darkstar.users.ipa.redhat.com/T/#u [2] Question about Address Range Validation in Crash Kernel Allocation https://lore.kernel.org/all/4eeac1f733584855965a2ea62fa4da58@huawei.com/T/#u Link: https://lkml.kernel.org/r/ZgDYemRQ2jxjLkq+@MiWiFi-R3L-srv Fixes: 4a693ce65b ("kdump: defer the insertion of crashkernel resources") Signed-off-by: Baoquan He <bhe@redhat.com> Cc: Dave Young <dyoung@redhat.com> Cc: Huacai Chen <chenhuacai@loongson.cn> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Bohac <jbohac@suse.cz> Cc: Li Huafei <lihuafei1@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2024-03-26 11:14:12 -07:00
..
boot	EFI fixes for v6.9 #2	2024-03-24 13:54:06 -07:00
coco
configs	x86/config: Fix warning for 'make ARCH=x86_64 tinyconfig'	2024-03-21 10:09:41 +01:00
crypto
entry	Kbuild updates for v6.9	2024-03-21 14:41:00 -07:00
events	perf/x86/amd/core: Avoid register reset when CPU is dead	2024-03-13 11:01:30 +01:00
hyperv	hyperv-next for v6.9	2024-03-21 10:01:02 -07:00
ia32
include	crash: use macro to add crashk_res into iomem early for specific arch	2024-03-26 11:14:12 -07:00
kernel	A set of x86 fixes:	2024-03-24 11:13:56 -07:00
kvm	Kbuild updates for v6.9	2024-03-21 14:41:00 -07:00
lib	Merge branch 'linus' into x86/boot, to resolve conflict	2024-03-12 09:55:57 +01:00
math-emu
mm	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00
net	Networking changes for 6.9.	2024-03-12 17:44:08 -07:00
pci
platform	xen: branch for v6.9-rc1	2024-03-19 08:48:09 -07:00
power	- Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min	2024-03-14 18:03:09 -07:00
purgatory
ras
realmode
tools
um
video
virt
xen	Kbuild updates for v6.9	2024-03-21 14:41:00 -07:00
.gitignore
Kbuild
Kconfig	Char/Misc and other driver subsystem updates for 6.9-rc1	2024-03-21 13:21:31 -07:00
Kconfig.assembler
Kconfig.cpu
Kconfig.debug
Makefile	- Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min	2024-03-14 18:03:09 -07:00
Makefile.postlink
Makefile.um
Makefile_32.cpu