/* * linux/arch/arm/mm/fault.c * * Copyright (C) 1995 Linus Torvalds * Modifications for ARM processor (c) 1995-2004 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "fault.h" #ifdef CONFIG_MMU #ifdef CONFIG_KPROBES static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) { int ret = 0; if (!user_mode(regs)) { /* kprobe_running() needs smp_processor_id() */ preempt_disable(); if (kprobe_running() && kprobe_fault_handler(regs, fsr)) ret = 1; preempt_enable(); } return ret; } #else static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) { return 0; } #endif /* * This is useful to dump out the page tables associated with * 'addr' in mm 'mm'. */ void show_pte(struct mm_struct *mm, unsigned long addr) { pgd_t *pgd; if (!mm) mm = &init_mm; pr_alert("pgd = %p\n", mm->pgd); pgd = pgd_offset(mm, addr); pr_alert("[%08lx] *pgd=%08llx", addr, (long long)pgd_val(*pgd)); do { pud_t *pud; pmd_t *pmd; pte_t *pte; if (pgd_none(*pgd)) break; if (pgd_bad(*pgd)) { pr_cont("(bad)"); break; } pud = pud_offset(pgd, addr); if (PTRS_PER_PUD != 1) pr_cont(", *pud=%08llx", (long long)pud_val(*pud)); if (pud_none(*pud)) break; if (pud_bad(*pud)) { pr_cont("(bad)"); break; } pmd = pmd_offset(pud, addr); if (PTRS_PER_PMD != 1) pr_cont(", *pmd=%08llx", (long long)pmd_val(*pmd)); if (pmd_none(*pmd)) break; if (pmd_bad(*pmd)) { pr_cont("(bad)"); break; } /* We must not map this if we have highmem enabled */ if (PageHighMem(pfn_to_page(pmd_val(*pmd) >> PAGE_SHIFT))) break; pte = pte_offset_map(pmd, addr); pr_cont(", *pte=%08llx", (long long)pte_val(*pte)); #ifndef CONFIG_ARM_LPAE pr_cont(", *ppte=%08llx", (long long)pte_val(pte[PTE_HWTABLE_PTRS])); #endif pte_unmap(pte); } while(0); pr_cont("\n"); } #else /* CONFIG_MMU */ void show_pte(struct mm_struct *mm, unsigned long addr) { } #endif /* CONFIG_MMU */ /* * Oops. The kernel tried to access some page that wasn't present. */ static void __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr, struct pt_regs *regs) { /* * Are we prepared to handle this kernel fault? */ if (fixup_exception(regs)) return; /* * No handler, we'll have to terminate things with extreme prejudice. */ bust_spinlocks(1); pr_alert("Unable to handle kernel %s at virtual address %08lx\n", (addr < PAGE_SIZE) ? "NULL pointer dereference" : "paging request", addr); show_pte(mm, addr); die("Oops", regs, fsr); bust_spinlocks(0); do_exit(SIGKILL); } /* * Something tried to access memory that isn't in our memory map.. * User mode accesses just cause a SIGSEGV */ static void __do_user_fault(struct task_struct *tsk, unsigned long addr, unsigned int fsr, unsigned int sig, int code, struct pt_regs *regs) { struct siginfo si; #ifdef CONFIG_DEBUG_USER if (((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) || ((user_debug & UDBG_BUS) && (sig == SIGBUS))) { printk(KERN_DEBUG "%s: unhandled page fault (%d) at 0x%08lx, code 0x%03x\n", tsk->comm, sig, addr, fsr); show_pte(tsk->mm, addr); show_regs(regs); } #endif tsk->thread.address = addr; tsk->thread.error_code = fsr; tsk->thread.trap_no = 14; si.si_signo = sig; si.si_errno = 0; si.si_code = code; si.si_addr = (void __user *)addr; force_sig_info(sig, &si, tsk); } void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { struct task_struct *tsk = current; struct mm_struct *mm = tsk->active_mm; /* * If we are in kernel mode at this point, we * have no context to handle this fault with. */ if (user_mode(regs)) __do_user_fault(tsk, addr, fsr, SIGSEGV, SEGV_MAPERR, regs); else __do_kernel_fault(mm, addr, fsr, regs); } #ifdef CONFIG_MMU #define VM_FAULT_BADMAP 0x010000 #define VM_FAULT_BADACCESS 0x020000 /* * Check that the permissions on the VMA allow for the fault which occurred. * If we encountered a write fault, we must have write permission, otherwise * we allow any permission. */ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma) { unsigned int mask = VM_READ | VM_WRITE | VM_EXEC; if (fsr & FSR_WRITE) mask = VM_WRITE; if (fsr & FSR_LNX_PF) mask = VM_EXEC; return vma->vm_flags & mask ? false : true; } static int __kprobes __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr, unsigned int flags, struct task_struct *tsk) { struct vm_area_struct *vma; int fault; vma = find_vma(mm, addr); fault = VM_FAULT_BADMAP; if (unlikely(!vma)) goto out; if (unlikely(vma->vm_start > addr)) goto check_stack; /* * Ok, we have a good vm_area for this * memory access, so we can handle it. */ 
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: Copyright (c) 2017 Enea AB and others.
:
: All rights reserved. This program and the accompanying materials
: are made available under the terms of the Apache License, Version 2.0
: which accompanies this distribution, and is available at
: http://www.apache.org/licenses/LICENSE-2.0
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From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
Date: Fri, 11 Aug 2017 00:07:29 +0200
Subject: [PATCH] maas: boot-resources: Add arm64 architecture

Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
---
 mcp/patches/0003-maas-region-force-artifact-download.patch | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mcp/patches/0003-maas-region-force-artifact-download.patch b/mcp/patches/0003-maas-region-force-artifact-download.patch
index f0ce50f..9997552 100644
--- a/mcp/patches/0003-maas-r