Re: Use PCI ROMs from EFI boot services

[Yinghai Lu]

On Wed, Dec 5, 2012 at 4:18 PM, Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote:
> On Wed, Dec 05, 2012 at 04:15:56PM -0800, Yinghai Lu wrote:
>
>> at the same time we should export setup_data into /sys, so kexec could
>> append this pointer to command of
>> second kernel, just like kexec append acpi_rsdp.
>> That should address DavidW's concern.
>
> Why should the kernel export data to userspace just so that that data
> can be passed back into the kernel?

then how the kexeced get those info?

first kernel already reserved those info as E820_RESERVED_KERN.
and those info are for bootloader's of first kernel.
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