On 06/19/15 at 09:09am, Vivek Goyal wrote: > On Fri, Jun 19, 2015 at 04:18:16PM +0800, Dave Young wrote: > > > > If we want to disable unsigned kernel loading at compile time, then we > > > > really need to work on decoupling CONFIG_KEXEC and CONFIG_FILE_KEXEC. > > > > Introducing another config option is not the way forward, IMHO. > > > > > > Yes, let's do it in this way since everyone is fine with it. > > > > I will work on a patch if nobody else have interest or no time on it. > > Thanks Dave. Will be good if you can get this done. Vivek, I worked out some draft patches here: https://github.com/daveyoung/linux/commits/kexec-syscall-cleanup Basiclly I split kexec_file first, then add CONFIG_KEXEC_CORE kconfig option then split kexec_load code from general code. There's a lot of #ifdef CONFIG_KEXEC in kernel source, because CONFIG_KEXEC can be disabled so I changed all kernel general and x86 #ifdef to use CONFIG_KEXEC_CORE if necessary. For other arches dependent code with #ifdef I did not change anything other than the new Kconfig option. It will works because only x86 support KEXEC_FILE. Please take a look if you have time, if this is not what you want please let me know. I will have no time this week, only did building test, will do more test next week, if everything is ok I can send out the patches to list for review. Thanks Dave
