Hi, On Thu, 3 Aug 2023 at 10:42, Pingfan Liu <pi...@redhat.com> wrote: > > Utilize the image load interface to export the kernel fd, which points > to the uncompressed kernel and will be passed to kexec_file_load. > > The credit goes to the Dave Young, who contributes the original code. > > Signed-off-by: Pingfan Liu <pi...@redhat.com> > Co-authored-by: Dave Young <dyo...@redhat.com>
Signed-off-by: Dave Young <dyo...@redhat.com> > To: kexec@lists.infradead.org > Cc: ho...@verge.net.au > Cc: a...@kernel.org > Cc: jeremy.lin...@arm.com > --- > kexec/kexec.c | 8 ++++++++ > kexec/kexec.h | 1 + > 2 files changed, 9 insertions(+) > > diff --git a/kexec/kexec.c b/kexec/kexec.c > index d132eb5..c3b182e 100644 > --- a/kexec/kexec.c > +++ b/kexec/kexec.c > @@ -1292,6 +1292,7 @@ static int do_kexec_file_load(int fileind, int argc, > char **argv, > info.kexec_flags = flags; > > info.file_mode = 1; > + info.kernel_fd = -1; > info.initrd_fd = -1; > > if (!is_kexec_file_load_implemented()) > @@ -1337,6 +1338,13 @@ static int do_kexec_file_load(int fileind, int argc, > char **argv, > return ret; > } > > + /* > + * image type specific load functioin detect the capsule kernel type > + * and create another fd for file load. For example the zboot kernel. > + */ > + if (info.kernel_fd != -1) > + kernel_fd = info.kernel_fd; > + > /* > * If there is no initramfs, set KEXEC_FILE_NO_INITRAMFS flag so that > * kernel does not return error with negative initrd_fd. > diff --git a/kexec/kexec.h b/kexec/kexec.h > index 0d820ad..ed3b499 100644 > --- a/kexec/kexec.h > +++ b/kexec/kexec.h > @@ -164,6 +164,7 @@ struct kexec_info { > unsigned long file_mode :1; > > /* Filled by kernel image processing code */ > + int kernel_fd; > int initrd_fd; > char *command_line; > int command_line_len; > -- > 2.31.1 > _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec