[RFC][PATCH 0/2 -mm] kexec based hibernation

[Eric W. Biederman]

Pavel Machek <pavel at ucw.cz> writes:

> Hi!
>
>> > Does this make sense?
>> 
>> Yes, this is a sensible optimization. But I think it may be better to
>> make bootloader load kernel D directly into a specified memory location.
>> For example, we can add a option to "kernel" command of grub. 
>> 
>> And, I think we can do more in bootloader. Such as we can prepare
>> two
>
> Yes, that would be nice.
>
> It will mean quite a bit of work, but I guess it should be the long
> term goal. Loading restore kernel directly from bootloader means:
>
> 1) it is fast -- no need to boot another kernel
>
> 2) it is "classical" way of doing things
>
> On the other hand, we loose flexibility that way:
>
> 1) it locks you onto one bootloader
>
> 2) you no longer have userland there to do uncompression, decryption,
> etc..

True although for the uncompression and decryption those aren't exactly foreign
requirements for bootloaders.

Eric