linux-toradex.git/kernel/kexec_elf.c, branch v6.14-rc2 Linux kernel for Apalis and Colibri modules kexec_elf: support 32 bit ELF files 2019-09-06T21:58:44+00:00 Sven Schnelle svens@stackframe.org 2019-08-23T19:49:19+00:00 ea46a13ebf536698a6f456e03b0f33bffbc5b4c0 The powerpc version only supported 64 bit. Add some code to switch decoding of fields during runtime so we can kexec a 32 bit kernel from a 64 bit kernel and vice versa. Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Helge Deller <deller@gmx.de> 
The powerpc version only supported 64 bit. Add some
code to switch decoding of fields during runtime so
we can kexec a 32 bit kernel from a 64 bit kernel and
vice versa.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
kexec_elf: remove unused variable in kexec_elf_load() 2019-09-06T21:58:44+00:00 Sven Schnelle svens@stackframe.org 2019-08-23T19:49:18+00:00 571ceb7d96952e8281bf780714773b850c403c3e base was never assigned, so we can remove it. Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de> 
base was never assigned, so we can remove it.

Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
kexec_elf: remove Elf_Rel macro 2019-09-06T21:58:43+00:00 Sven Schnelle svens@stackframe.org 2019-08-23T19:49:17+00:00 3bd9c3366ee5c4e1b6ee8c8d9006ee559ec1d4ba It wasn't used anywhere, so lets drop it. Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de> 
It wasn't used anywhere, so lets drop it.

Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
kexec_elf: remove PURGATORY_STACK_SIZE 2019-09-06T21:58:43+00:00 Sven Schnelle svens@stackframe.org 2019-08-23T19:49:16+00:00 10ba459f870c7ca469e8190a704b9bbc1d513978 It's not used anywhere so just drop it. Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Helge Deller <deller@gmx.de> 
It's not used anywhere so just drop it.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
kexec_elf: remove parsing of section headers 2019-09-06T21:58:43+00:00 Sven Schnelle svens@stackframe.org 2019-08-23T19:49:15+00:00 5f71d977206f3b2990ba304766ddaa9e81dbe700 We're not using them, so we can drop the parsing. Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Helge Deller <deller@gmx.de> 
We're not using them, so we can drop the parsing.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
kexec_elf: change order of elf_*_to_cpu() functions 2019-09-06T21:58:43+00:00 Sven Schnelle svens@stackframe.org 2019-08-23T19:49:14+00:00 d34e0ad3eaf45c612cc7b5baa0f6b2f2a6d75612 Change the order to have a 64/32/16 order, no functional change. Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Helge Deller <deller@gmx.de> 
Change the order to have a 64/32/16 order, no functional change.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
kexec: add KEXEC_ELF 2019-09-06T21:58:43+00:00 Sven Schnelle svens@stackframe.org 2019-08-23T19:49:13+00:00 175fca3bf91a1111b7e46f6655666640556b9059 Right now powerpc provides an implementation to read elf files with the kexec_file_load() syscall. Make that available as a public kexec interface so it can be re-used on other architectures. Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Helge Deller <deller@gmx.de> 
Right now powerpc provides an implementation to read elf files
with the kexec_file_load() syscall. Make that available as a public
kexec interface so it can be re-used on other architectures.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>