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98bf2d3f49
linux/arch/powerpc
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Christophe Leroy 98bf2d3f49 powerpc/32s: Fix RTAS machine check with VMAP stack 
When we have VMAP stack, exception prolog 1 sets r1, not r11.

When it is not an RTAS machine check, don't trash r1 because it is
needed by prolog 1.

Fixes: da7bb43ab9 ("powerpc/32: Fix vmap stack - Properly set r1 before activating MMU")
Fixes: d2e0060360 ("powerpc/32: Use SPRN_SPRG_SCRATCH2 in exception prologs")
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Squash in fixup for RTAS machine check from Christophe]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/bc77d61d1c18940e456a2dee464f1e2eda65a3f0.1608621048.git.christophe.leroy@csgroup.eu
2021-01-04 23:59:25 +11:00
..
boot powerpc/boot: Fix build of dts/fsl 2020-12-21 22:06:09 +11:00
configs powerpc updates for 5.11 2020-12-17 13:34:25 -08:00
crypto crypto: powerpc/sha256-spe - Fix sparse endianness warning 2020-11-27 17:13:41 +11:00
include local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
kernel powerpc/32s: Fix RTAS machine check with VMAP stack 2021-01-04 23:59:25 +11:00
kexec arch, drivers: replace for_each_membock() with for_each_mem_range() 2020-10-13 18:38:35 -07:00
kvm powerpc updates for 5.11 2020-12-17 13:34:25 -08:00
lib powerpc/sstep: Add testcases for VSX vector paired load/store instructions 2020-12-11 00:09:10 +11:00
math-emu
mm powerpc updates for 5.11 2020-12-17 13:34:25 -08:00
net bpf, powerpc: Fix misuse of fallthrough in bpf_jit_comp() 2020-09-29 16:39:11 +02:00
oprofile powerpc/oprofile: fix spelling mistake "contex" -> "context" 2020-08-25 01:31:33 +10:00
perf powerpc updates for 5.11 2020-12-17 13:34:25 -08:00
platforms dma-mapping updates for 5.11: 2020-12-22 13:19:43 -08:00
purgatory powerpc/kexec_file: Enable early kernel OPAL calls 2020-07-29 23:47:55 +10:00
sysdev powerpc/xive: Improve error reporting of OPAL calls 2020-12-11 09:53:11 +11:00
tools powerpc/tools: Remove 90 line limit in checkpatch script 2020-09-08 22:57:11 +10:00
xmon powerpc/xmon: Change printk() to pr_cont() 2020-12-04 21:56:30 +11:00
Kbuild powerpc/kexec: Move kexec files into a dedicated subdir. 2019-11-21 15:41:34 +11:00
Kconfig dma-mapping updates for 5.11: 2020-12-22 13:19:43 -08:00
Kconfig.debug powerpc: Remove Xilinx PPC405/PPC440 support 2020-05-28 23:24:34 +10:00
Makefile powerpc updates for 5.11 2020-12-17 13:34:25 -08:00
Makefile.postlink powerpc: unrel_branch_check.sh: use nm to find symbol value 2020-09-02 11:00:22 +10:00