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riscv: also select ARCH_KEEP_MEMBLOCK if kexec is selected

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On RISC-V, also select ARCH_KEEP_MEMBLOCK if kexec is selected, not
only if ACPI is selected.  This is because kexec requires the memblock
areas to be kept after boot to initialize the secondary kernel.  This
is needed for both Device Tree and ACPI platforms.

Signed-off-by: Han Gao <gaohan@iscas.ac.cn>
Link: https://patch.msgid.link/20260519165546.123105-1-gaohan@iscas.ac.cn
[pjw@kernel.org: change to add the dependency on kexec, rather than making it unconditional;
 rewrite the patch description accordingly]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
This commit is contained in:
Han Gao 2026-05-20 00:55:46 +08:00 committed by Paul Walmsley
parent d3e0634787
commit bce35135fe
1 changed files with 1 additions and 1 deletions
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2
arch/riscv/Kconfig
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@ -56,7 +56,7 @@ config RISCV
select ARCH_HAS_UBSAN
select ARCH_HAS_VDSO_ARCH_DATA if HAVE_GENERIC_VDSO
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_KEEP_MEMBLOCK if ACPI
select ARCH_KEEP_MEMBLOCK if ACPI || KEXEC
select ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE if 64BIT && MMU
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT