linux-kernel - Re: [PATCH v2 01/17] sh: Add sh-specific early_init_dt_reserve_memory

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <b257fec6-5c92-dcf5-ff8a-20365f8e9365@cogentembedded.com>
Date:	Sun, 12 Jun 2016 14:29:42 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 01/17] sh: Add sh-specific
 early_init_dt_reserve_memory_arch

On 6/12/2016 9:54 AM, Yoshinori Sato wrote:

> sh used P1 address space in early device tree.
> So need convert P1 to physical address before reserve memory.
>
> Signed-off-by: Yoshinori Sato <ysato@...rs.sourceforge.jp>
> ---
>  arch/sh/boards/of-generic.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c
> index 57d45dc..fe2d917 100644
> --- a/arch/sh/boards/of-generic.c
> +++ b/arch/sh/boards/of-generic.c
[...]
> @@ -203,3 +204,14 @@ static int __init sh_of_device_init(void)
>  	return 0;
>  }
>  arch_initcall_sync(sh_of_device_init);
> +
> +int __init early_init_dt_reserve_memory_arch(phys_addr_t base,
> +					     phys_addr_t size, bool nomap)
> +{
> +	if (nomap)
> +		return memblock_remove(base, size);
> +
> +	if (base >= P1SEG)
> +		base = base & ~P1SEG;

		base &= ~P1SEG;

> +	return memblock_reserve(base, size);
> +}

MBR, Sergei