[U-Boot] [PATCH 03/11] x86: coreboot: Correctly report E820 types

Bin Meng bmeng.cn at gmail.com
Mon Aug 17 03:22:38 CEST 2015


Hi Simon,

On Mon, Aug 17, 2015 at 5:27 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Bin,
>
> On 13 August 2015 at 01:29, Bin Meng <bmeng.cn at gmail.com> wrote:
>> coreboot has some extensions (type 6 & 16) to the E820 types.
>> When we detect this, mark it as E820_RESERVED.
>>
>> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
>> ---
>>
>>  arch/x86/cpu/coreboot/sdram.c | 15 +++++++++++++--
>>  1 file changed, 13 insertions(+), 2 deletions(-)
>
> Acked-by: Simon Glass <sjg at chromium.org>
>
> I wonder what the kernel does when it sees the coreboot values?
>

I noticed this by checking kernel dmesg, where the log prints the E820
ranges as well as types. For type 6 & 16, kernel does not understand
that and it just prints the typer number. I believe kernel will ignore
these.

Regards,
Bin


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