Russell Currey fec8a09f79 powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX ...

[ Upstream commit 56c46bba9b ]

With STRICT_KERNEL_RWX enabled anything marked __init is placed at a 16M
boundary.  This is necessary so that it can be repurposed later with
different permissions.  However, in kernels with text larger than 16M,
this pushes early_setup past 32M, incapable of being reached by the
branch instruction.

Fix this by setting the CTR and branching there instead.

Fixes: 1e0fc9d1eb ("powerpc/Kconfig: Enable STRICT_KERNEL_RWX for some configs")
Signed-off-by: Russell Currey <ruscur@russell.cc>
[mpe: Fix it to work on BE by using DOTSYM()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2019-05-31 06:46:18 -07:00

..

boot

powerpc/boot: Fix missing check of lseek() return value

2019-05-31 06:46:11 -07:00

configs

powerpc/mm/radix: Make Radix require HUGETLB_PAGE

2019-05-02 09:58:55 +02:00

crypto

Merge tag 'powerpc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2018-08-17 11:32:50 -07:00

include

powerpc/booke64: set RI in default MSR

2019-05-16 19:41:31 +02:00

kernel

powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX

2019-05-31 06:46:18 -07:00

kvm

powerpc/fsl: Flush branch predictor when entering KVM

2019-04-03 06:26:20 +02:00

lib

powerpc/64: Fix memcmp reading past the end of src/dest

2019-04-03 06:26:29 +02:00

math-emu

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mm

powerpc/numa: improve control of topology updates

2019-05-31 06:46:18 -07:00

net

powerpc: bpf: Fix generation of load/store DW instructions

2019-04-03 06:26:21 +02:00

oprofile

treewide: kzalloc() -> kcalloc()

2018-06-12 16:19:22 -07:00

perf

powerpc/perf: Fix loop exit condition in nest_imc_event_init

2019-05-31 06:46:11 -07:00

platforms

powerpc/perf: Fix loop exit condition in nest_imc_event_init

2019-05-31 06:46:11 -07:00

purgatory

Merge tag 'powerpc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2018-08-17 11:32:50 -07:00

sysdev

treewide: correct "differenciate" and "instanciate" typos

2018-08-23 18:48:43 -07:00

tools

powerpc: Add a checkpatch wrapper with our preferred settings

2018-08-07 21:49:25 +10:00

xmon

powerpc/xmon: Fix opcode being uninitialized in print_insn_powerpc

2019-04-05 22:33:01 +02:00

Kconfig

powerpc: disable support for relative ksymtab references

2018-08-29 16:12:07 -07:00

Kconfig.debug

Kconfig: consolidate the "Kernel hacking" menu

2018-08-02 08:06:48 +09:00

Makefile

powerpc: avoid -mno-sched-epilog on GCC 4.9 and newer

2019-01-13 09:51:05 +01:00

Makefile.postlink

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00