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SubjectRe: [PATCH] x86,setup: add serial_console_port_base in boot_params
On 07/31/2010 11:32 AM, Cyrill Gorcunov wrote:
>>
>> No, this is the internal part of the boot protocol, so it's not an issue.
>>
>
> Peter, I didn't mean any issue here, I meant that bootloaders don't know about
> this field yet and they will have to update own sources to pass port value
> at proper place of boot params. Or I miss something?
>

Boot loaders that use the 16-bit entry point are unaffected.

Boot loaders which use the 32-bit entry point but properly clears the
zero page simply will not have the feature.

Boot loaders which use the 32-bit entry point but doesn't clear the zero
page are broken.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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