On 01/31/25 at 05:08pm, Sourabh Jain wrote: > Although the crashkernel area is reserved, on architectures like > PowerPC, it is possible for the crashkernel reserved area to contain > components like RTAS, TCE, OPAL, etc. To avoid placing kexec segments > over these components, PowerPC has its own set of APIs to locate holes > in the crashkernel reserved area. > > Add an arch hook in the generic locate mem hole APIs so that > architectures can handle such special regions in the crashkernel area > while locating memory holes for kexec segments using generic APIs. > With this, a lot of redundant arch-specific code can be removed, as it > performs the exact same job as the generic APIs. > > To keep the generic and arch-specific changes separate, the changes > related to moving PowerPC to use the generic APIs and the removal of > PowerPC-specific APIs for memory hole allocation are done in a > subsequent patch titled "powerpc/crash: Use generic APIs to locate > memory hole for kdump. > > Cc: Andrew Morton <a...@linux-foundation.org> > Cc: Baoquan he <b...@redhat.com> > Cc: Hari Bathini <hbath...@linux.ibm.com> > Cc: Madhavan Srinivasan <ma...@linux.ibm.com> > Cc: Mahesh Salgaonkar <mah...@linux.ibm.com> > Cc: Michael Ellerman <m...@ellerman.id.au> > Cc: ke...@lists.infradead.org > Cc: linux-ker...@vger.kernel.org > Signed-off-by: Sourabh Jain <sourabhj...@linux.ibm.com> > --- > include/linux/kexec.h | 9 +++++++++ > kernel/kexec_file.c | 12 ++++++++++++ > 2 files changed, 21 insertions(+)
LGTM, Acked-by: Baoquan He <b...@redhat.com>
