diff options
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/fault.c | 2 | ||||
| -rw-r--r-- | arch/arm64/mm/hugetlbpage.c | 2 | ||||
| -rw-r--r-- | arch/arm64/mm/kasan_init.c | 5 | ||||
| -rw-r--r-- | arch/arm64/mm/mmu.c | 6 |
4 files changed, 11 insertions, 4 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 460d799e1296..55f6455a8284 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -607,6 +607,8 @@ static int __kprobes do_page_fault(unsigned long far, unsigned long esr, goto done; } count_vm_vma_lock_event(VMA_LOCK_RETRY); + if (fault & VM_FAULT_MAJOR) + mm_flags |= FAULT_FLAG_TRIED; /* Quick path to respond to signals */ if (fault_signal_pending(fault, regs)) { diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index f5aae342632c..8116ac599f80 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -51,7 +51,7 @@ void __init arm64_hugetlb_cma_reserve(void) * page allocator. Just warn if there is any change * breaking this assumption. */ - WARN_ON(order <= MAX_ORDER); + WARN_ON(order <= MAX_PAGE_ORDER); hugetlb_cma_reserve(order); } #endif /* CONFIG_CMA */ diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c index 555285ebd5af..4c7ad574b946 100644 --- a/arch/arm64/mm/kasan_init.c +++ b/arch/arm64/mm/kasan_init.c @@ -170,6 +170,11 @@ asmlinkage void __init kasan_early_init(void) { BUILD_BUG_ON(KASAN_SHADOW_OFFSET != KASAN_SHADOW_END - (1UL << (64 - KASAN_SHADOW_SCALE_SHIFT))); + /* + * We cannot check the actual value of KASAN_SHADOW_START during build, + * as it depends on vabits_actual. As a best-effort approach, check + * potential values calculated based on VA_BITS and VA_BITS_MIN. + */ BUILD_BUG_ON(!IS_ALIGNED(_KASAN_SHADOW_START(VA_BITS), PGDIR_SIZE)); BUILD_BUG_ON(!IS_ALIGNED(_KASAN_SHADOW_START(VA_BITS_MIN), PGDIR_SIZE)); BUILD_BUG_ON(!IS_ALIGNED(KASAN_SHADOW_END, PGDIR_SIZE)); diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 15f6347d23b6..1ac7467d34c9 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -52,9 +52,6 @@ u64 vabits_actual __ro_after_init = VA_BITS_MIN; EXPORT_SYMBOL(vabits_actual); #endif -u64 kimage_vaddr __ro_after_init = (u64)&_text; -EXPORT_SYMBOL(kimage_vaddr); - u64 kimage_voffset __ro_after_init; EXPORT_SYMBOL(kimage_voffset); @@ -674,6 +671,9 @@ static int __init map_entry_trampoline(void) { int i; + if (!arm64_kernel_unmapped_at_el0()) + return 0; + pgprot_t prot = kernel_exec_prot(); phys_addr_t pa_start = __pa_symbol(__entry_tramp_text_start); |