Daniel Kiper <daniel.kiper at oracle.com> writes: > Some kexec/kdump implementations (e.g. Xen PVOPS) could not use default > Linux infrastructure and require some support from firmware and/or hypervisor. > To cope with that problem kexec firmware infrastructure was introduced. > It allows a developer to use all kexec/kdump features of given firmware > or hypervisor. As this stands this patch is wrong. You need to pass an additional flag from userspace through /sbin/kexec that says load the kexec image in the firmware. A global variable here is not ok. As I understand it you are loading a kexec on xen panic image. Which is semantically different from a kexec on linux panic image. It is not ok to do have a silly global variable kexec_use_firmware. Furthermore it is not ok to have a conditional code outside of header files. Eric
