Messages in this thread Patch in this message | | | From | Nicolas Saenz Julienne <> | Subject | [PATCH v7 1/7] arm64: mm: Move reserve_crashkernel() into mem_init() | Date | Thu, 19 Nov 2020 18:53:53 +0100 |
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crashkernel might reserve memory located in ZONE_DMA. We plan to delay ZONE_DMA's initialization after unflattening the devicetree and ACPI's boot table initialization, so move it later in the boot process. Specifically into bootmem_init() since request_standard_resources() depends on it.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Tested-by: Jeremy Linton <jeremy.linton@arm.com>
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Changes since v6: - Move crashkernel reserve placement earlier, in bootmem_init()
arch/arm64/mm/init.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 71d463544400..fafdf992fd32 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -389,8 +389,6 @@ void __init arm64_memblock_init(void) else arm64_dma32_phys_limit = PHYS_MASK + 1; - reserve_crashkernel(); - reserve_elfcorehdr(); high_memory = __va(memblock_end_of_DRAM() - 1) + 1; @@ -430,6 +428,12 @@ void __init bootmem_init(void) sparse_init(); zone_sizes_init(min, max); + /* + * request_standard_resources() depends on crashkernel's memory being + * reserved, so do it here. + */ + reserve_crashkernel(); + memblock_dump_all(); } -- 2.29.2
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