Messages in this thread | | | Date | Wed, 5 Dec 2012 16:22:00 -0800 | Subject | Re: Use PCI ROMs from EFI boot services | From | Yinghai Lu <> |
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On Wed, Dec 5, 2012 at 4:18 PM, Matthew Garrett <mjg59@srcf.ucam.org> 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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