On 12/05/2012 04:18 PM, Matthew Garrett 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? > Because it also needs to modify it. Right now kexec userspace synthesizes struct boot_params from scratch, and does so incorrectly to boot. I think we have setup_data exported via debugfs but IIRC we never got a strong enough use case for sysfs. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
