Re: [PATCH v4 5/5] x86: implement crashkernel cma reservation

From: Baoquan He
Date: Tue Jun 03 2025 - 07:02:31 EST


On 05/30/25 at 10:31pm, Jiri Bohac wrote:
......snip..
> @@ -582,7 +582,7 @@ static void __init arch_reserve_crashkernel(void)
>
> ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
> &crash_size, &crash_base,
> - &low_size, NULL, &high);
> + &low_size, &cma_size, &high);
> if (ret)
> return;
>
> @@ -592,6 +592,7 @@ static void __init arch_reserve_crashkernel(void)
> }
>
> reserve_crashkernel_generic(crash_size, crash_base, low_size, high);
> + reserve_crashkernel_cma(cma_size);

Wondering if ,high|low is still allowed (or needed) when ,cma is specified.