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linux-stable/arch/powerpc
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Oliver O'Halloran a1ff57416a powerpc/boot: Fix the early OPAL console wrappers 
When configured with CONFIG_PPC_EARLY_DEBUG_OPAL=y the kernel expects
the OPAL entry and base addresses to be passed in r8 and r9
respectively. Currently the wrapper does not attempt to restore these
values before entering the decompressed kernel which causes the kernel
to branch into whatever happens to be in r9 when doing a write to the
OPAL console in early boot.

This patch adds a platform_ops hook that can be used to branch into the
new kernel. The OPAL console driver patches this at runtime so that if
the console is used it will be restored just prior to entering the
kernel.

Fixes: 656ad58ef1 ("powerpc/boot: Add OPAL console to epapr wrappers")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-24 17:34:01 +11:00
..
boot powerpc/boot: Fix the early OPAL console wrappers 2016-11-24 17:34:01 +11:00
configs Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next 2016-10-11 20:07:56 +11:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-10 14:04:16 -07:00
include powerpc: Fix missing CRCs, add more asm-prototypes.h declarations 2016-11-22 22:25:41 +11:00
kernel powerpc: Set missing wakeup bit in LPCR on POWER9 2016-11-22 14:53:27 +11:00
kvm KVM: PPC: Book3S HV: Fix build error when SMP=n 2016-10-22 08:44:37 +11:00
lib Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-10-14 14:26:58 -07:00
math-emu
mm powerpc/mm: Fix missing update of HID register on secondary CPUs 2016-11-18 23:16:58 +11:00
net powerpc/bpf: Add support for bpf constant blinding 2016-10-04 20:33:20 +11:00
oprofile powerpc/sparse: Make a bunch of things static 2016-09-13 17:35:47 +10:00
perf powerpc/sparse: Make a bunch of things static 2016-09-13 17:35:47 +10:00
platforms powerpc updates for 4.9 #2 2016-10-14 11:07:42 -07:00
scripts powerpc/ftrace: Add Kconfig & Make glue for mprofile-kernel 2016-03-07 14:53:56 +11:00
sysdev Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-10-14 14:26:58 -07:00
xmon powerpc/xmon: Don't use ld on 32-bit 2016-09-13 17:37:02 +10:00
Kconfig Merge branch 'akpm' (patches from Andrew) 2016-10-07 21:38:00 -07:00
Kconfig.debug powerpc/mm: Catch usage of cpu/mmu_has_feature() before jump label init 2016-08-01 11:15:06 +10:00
Makefile arch/powerpc: Add CONFIG_FSL_DPAA to corenetXX_smp_defconfig 2016-09-25 02:39:01 -05:00
relocs_check.sh powerpc/64: whitelist unresolved modversions CRCs 2016-09-22 14:46:31 +02:00