Helge Deller e96373f0a5 parisc: Clear stale IIR value on instruction access rights trap ... [ Upstream commit 484730e586 ] When a trap 7 (Instruction access rights) occurs, this means the CPU couldn't execute an instruction due to missing execute permissions on the memory region. In this case it seems the CPU didn't even fetched the instruction from memory and thus did not store it in the cr19 (IIR) register before calling the trap handler. So, the trap handler will find some random old stale value in cr19. This patch simply overwrites the stale IIR value with a constant magic "bad food" value (0xbaadf00d), in the hope people don't start to try to understand the various random IIR values in trap 7 dumps. Noticed-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-01-05 12:42:33 +01:00
..
boot	parisc: Add missing FORCE prerequisite in Makefile	2021-09-09 12:44:30 +02:00
configs	configs: remove the obsolete CONFIG_INPUT_POLLDEV	2021-09-08 11:50:28 -07:00
include	parisc: Fix mask used to select futex spinlock	2021-12-29 12:28:53 +01:00
kernel	parisc: Clear stale IIR value on instruction access rights trap	2022-01-05 12:42:33 +01:00
lib	parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled	2021-09-19 10:36:09 -07:00
math-emu	parisc: math-emu: Fix fall-through warnings	2021-09-01 22:18:18 +02:00
mm	parisc: fix warning in flush_tlb_all	2021-11-18 19:16:21 +01:00
defpalo.conf
install.sh	parisc: Fix "make install" on newer debian releases	2021-12-08 09:04:55 +01:00
Kbuild	parisc: move core-y in arch/parisc/Makefile to arch/parisc/Kbuild	2021-08-30 10:18:25 +02:00
Kconfig	firmware: include drivers/firmware/Kconfig unconditionally	2021-10-07 16:51:26 +02:00
Kconfig.debug	tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig	2021-08-16 11:37:21 -04:00
Makefile	parisc: Fix KBUILD_IMAGE for self-extracting kernel	2021-12-08 09:04:55 +01:00
nm