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
..
alpha	Kbuild updates for v6.9	2024-03-21 14:41:00 -07:00
arc	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00
arm	ARM: prctl: reject PR_SET_MDWE on pre-ARMv6	2024-03-26 11:07:22 -07:00
arm64	arm64 fix/update:	2024-03-21 17:21:41 -07:00
csky	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00
hexagon	hexagon: vmlinux.lds.S: handle attributes section	2024-03-26 11:07:23 -07:00
loongarch	LoongArch changes for v6.9	2024-03-22 10:22:45 -07:00
m68k	TTY/Serial driver update for 6.9-rc1	2024-03-21 12:44:10 -07:00
microblaze	arch: define CONFIG_PAGE_SIZE_*KB on all architectures	2024-03-06 19:29:09 +01:00
mips	S390:	2024-03-15 13:03:13 -07:00
nios2	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00
openrisc	OpenRISC updates for 6.9	2024-03-14 15:53:10 -07:00
parisc	prctl: generalize PR_SET_MDWE support check to be per-arch	2024-03-26 11:07:22 -07:00
powerpc	powerpc updates for 6.9 #2	2024-03-23 09:21:26 -07:00
riscv	RISC-V Patches for the 6.9 Merge Window	2024-03-22 10:41:13 -07:00
s390	more s390 updates for 6.9 merge window	2024-03-19 11:38:27 -07:00
sh	sh updates for v6.9	2024-03-21 10:13:47 -07:00
sparc	This includes the following changes related to sparc for v6.9:	2024-03-15 12:47:21 -07:00
um	Devicetree updates for v6.9:	2024-03-15 12:37:59 -07:00
x86	crash: use macro to add crashk_res into iomem early for specific arch	2024-03-26 11:14:12 -07:00
xtensa	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00
.gitignore
Kconfig	hardening fixes for v6.9-rc1	2024-03-23 08:43:21 -07:00