diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:07:36 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:07:36 +0200 |
commit | 27d6e47f8e133167af51a3e39548cd3e9bed07da (patch) | |
tree | 069abe69fc8e247ef9ca4443afc11d04aa1e723c /arch/arm64/mm/fault.c | |
parent | 9dc86c234e845a5f60c5af013e647795c784df87 (diff) | |
parent | 4f5cafb5cb8471e54afdc9054d973535614f7675 (diff) |
Merge 5.4-rc3 into staging-next
We want the staging driver fixes in here as well to build on and test
with.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/mm/fault.c')
-rw-r--r-- | arch/arm64/mm/fault.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 115d7a0e4b08..855f2a7954e6 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -113,6 +113,15 @@ static inline bool is_ttbr1_addr(unsigned long addr) return arch_kasan_reset_tag(addr) >= PAGE_OFFSET; } +static inline unsigned long mm_to_pgd_phys(struct mm_struct *mm) +{ + /* Either init_pg_dir or swapper_pg_dir */ + if (mm == &init_mm) + return __pa_symbol(mm->pgd); + + return (unsigned long)virt_to_phys(mm->pgd); +} + /* * Dump out the page tables associated with 'addr' in the currently active mm. */ @@ -141,7 +150,7 @@ static void show_pte(unsigned long addr) pr_alert("%s pgtable: %luk pages, %llu-bit VAs, pgdp=%016lx\n", mm == &init_mm ? "swapper" : "user", PAGE_SIZE / SZ_1K, - vabits_actual, (unsigned long)virt_to_phys(mm->pgd)); + vabits_actual, mm_to_pgd_phys(mm)); pgdp = pgd_offset(mm, addr); pgd = READ_ONCE(*pgdp); pr_alert("[%016lx] pgd=%016llx", addr, pgd_val(pgd)); @@ -266,7 +275,7 @@ static bool __kprobes is_spurious_el1_translation_fault(unsigned long addr, * If we got a different type of fault from the AT instruction, * treat the translation fault as spurious. */ - dfsc = FIELD_PREP(SYS_PAR_EL1_FST, par); + dfsc = FIELD_GET(SYS_PAR_EL1_FST, par); return (dfsc & ESR_ELx_FSC_TYPE) != ESR_ELx_FSC_FAULT; } |