WSL2-Linux-Kernel/arch/arm64/mm
Mark Rutland 3813733595 arm64: mm: fix inverted PAR_EL1.F check
When detecting a spurious EL1 translation fault, we have the CPU retry
the translation using an AT S1E1R instruction, and inspect PAR_EL1 to
determine if the fault was spurious.

When PAR_EL1.F == 0, the AT instruction successfully translated the
address without a fault, which implies the original fault was spurious.
However, in this case we return false and treat the original fault as if
it was not spurious.

Invert the return value so that we treat such a case as spurious.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 42f91093b0 ("arm64: mm: Ignore spurious translation faults taken from the kernel")
Tested-by: James Morse <james.morse@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-10-16 09:58:03 -07:00
..
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
context.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
copypage.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
dma-mapping.c arm64: use asm-generic/dma-mapping.h 2019-09-11 12:43:27 +02:00
dump.c arm64: memory: rename VA_START to PAGE_END 2019-08-14 17:06:58 +01:00
extable.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fault.c arm64: mm: fix inverted PAR_EL1.F check 2019-10-16 09:58:03 -07:00
flush.c mm: introduce page_size() 2019-09-24 15:54:08 -07:00
hugetlbpage.c arm64/hugetlb: Use macros for contiguous huge page sizes 2019-06-03 16:58:37 +01:00
init.c Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core 2019-08-30 12:46:12 +01:00
ioremap.c arm64: remove __iounmap 2019-09-04 13:12:26 +01:00
kasan_init.c arm64: memory: rename VA_START to PAGE_END 2019-08-14 17:06:58 +01:00
mmap.c arm64, mm: move generic mmap layout functions to mm 2019-09-24 15:54:11 -07:00
mmu.c mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 2019-09-26 10:10:44 -07:00
numa.c arm64: Replace strncmp with str_has_prefix 2019-08-05 11:06:34 +01:00
pageattr.c arm64: unexport set_memory_x and set_memory_nx 2019-08-15 12:58:26 +01:00
pgd.c mm: consolidate pgtable_cache_init() and pgd_cache_init() 2019-09-24 15:54:09 -07:00
physaddr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc.S Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core 2019-08-30 12:46:12 +01:00
ptdump_debugfs.c arm64: dump: no need to check return value of debugfs_create functions 2019-01-31 17:38:19 +00:00