From: Nicolas Saenz Julienne nsaenzjulienne@suse.de
commit 0a30c53573b07d5561457e41fb0ab046cd857da5 upstream
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 Link: https://lore.kernel.org/r/20201119175400.9995-2-nsaenzjulienne@suse.de Signed-off-by: Catalin Marinas catalin.marinas@arm.com Cc: stable@vger.kernel.org Signed-off-by: Jing Xiangfeng jingxiangfeng@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/mm/init.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
--- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -386,8 +386,6 @@ 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; @@ -427,6 +425,12 @@ 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(); }