On 07/11/2013 04:48 PM, Stephen Warren wrote: > From: Stephen Warren <swarren at nvidia.com> > > Architectures should fully validate whether kexec is possible as part of > machine_kexec_prepare(), so that user-space's kexec_load() operation can > report any problems. Performing validation in machine_kexec() itself is > too late, since it is not allowed to return. > > Prior to this patch, ARM's machine_kexec() was testing after-the-fact > whether machine_kexec_prepare() was able to disable all but one CPU. > Instead, modify machine_kexec_prepare() to validate all conditions > necessary for machine_kexec_prepare()'s to succeed. BUG if the validation > succeeded, yet disabling the CPUs didn't actually work. Russell, does this look good to put into the ARM patch tracker?
