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65fddcfca8
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include
of the latter in the middle of asm includes. Fix this up with the aid of
the below script and manual adjustments here and there.
import sys
import re
if len(sys.argv) is not 3:
print "USAGE: %s <file> <header>" % (sys.argv[0])
sys.exit(1)
hdr_to_move="#include <linux/%s>" % sys.argv[2]
moved = False
in_hdrs = False
with open(sys.argv[1], "r") as f:
lines = f.readlines()
for _line in lines:
line = _line.rstrip('
')
if line == hdr_to_move:
continue
if line.startswith("#include <linux/"):
in_hdrs = True
elif not moved and in_hdrs:
moved = True
print hdr_to_move
print line
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2019 Andes Technology Corporation
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#include <linux/pfn.h>
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#include <linux/init_task.h>
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#include <linux/kasan.h>
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#include <linux/kernel.h>
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#include <linux/memblock.h>
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#include <linux/pgtable.h>
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#include <asm/tlbflush.h>
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#include <asm/fixmap.h>
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extern pgd_t early_pg_dir[PTRS_PER_PGD];
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asmlinkage void __init kasan_early_init(void)
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{
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uintptr_t i;
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pgd_t *pgd = early_pg_dir + pgd_index(KASAN_SHADOW_START);
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for (i = 0; i < PTRS_PER_PTE; ++i)
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set_pte(kasan_early_shadow_pte + i,
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mk_pte(virt_to_page(kasan_early_shadow_page),
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PAGE_KERNEL));
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for (i = 0; i < PTRS_PER_PMD; ++i)
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set_pmd(kasan_early_shadow_pmd + i,
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pfn_pmd(PFN_DOWN
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(__pa((uintptr_t) kasan_early_shadow_pte)),
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__pgprot(_PAGE_TABLE)));
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for (i = KASAN_SHADOW_START; i < KASAN_SHADOW_END;
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i += PGDIR_SIZE, ++pgd)
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set_pgd(pgd,
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pfn_pgd(PFN_DOWN
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(__pa(((uintptr_t) kasan_early_shadow_pmd))),
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__pgprot(_PAGE_TABLE)));
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/* init for swapper_pg_dir */
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pgd = pgd_offset_k(KASAN_SHADOW_START);
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for (i = KASAN_SHADOW_START; i < KASAN_SHADOW_END;
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i += PGDIR_SIZE, ++pgd)
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set_pgd(pgd,
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pfn_pgd(PFN_DOWN
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(__pa(((uintptr_t) kasan_early_shadow_pmd))),
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__pgprot(_PAGE_TABLE)));
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flush_tlb_all();
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}
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static void __init populate(void *start, void *end)
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{
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unsigned long i, offset;
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unsigned long vaddr = (unsigned long)start & PAGE_MASK;
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unsigned long vend = PAGE_ALIGN((unsigned long)end);
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unsigned long n_pages = (vend - vaddr) / PAGE_SIZE;
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unsigned long n_ptes =
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((n_pages + PTRS_PER_PTE) & -PTRS_PER_PTE) / PTRS_PER_PTE;
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unsigned long n_pmds =
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((n_ptes + PTRS_PER_PMD) & -PTRS_PER_PMD) / PTRS_PER_PMD;
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pte_t *pte =
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memblock_alloc(n_ptes * PTRS_PER_PTE * sizeof(pte_t), PAGE_SIZE);
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pmd_t *pmd =
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memblock_alloc(n_pmds * PTRS_PER_PMD * sizeof(pmd_t), PAGE_SIZE);
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pgd_t *pgd = pgd_offset_k(vaddr);
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for (i = 0; i < n_pages; i++) {
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phys_addr_t phys = memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE);
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set_pte(&pte[i], pfn_pte(PHYS_PFN(phys), PAGE_KERNEL));
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}
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for (i = 0, offset = 0; i < n_ptes; i++, offset += PTRS_PER_PTE)
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set_pmd(&pmd[i],
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pfn_pmd(PFN_DOWN(__pa(&pte[offset])),
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__pgprot(_PAGE_TABLE)));
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for (i = 0, offset = 0; i < n_pmds; i++, offset += PTRS_PER_PMD)
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set_pgd(&pgd[i],
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pfn_pgd(PFN_DOWN(__pa(&pmd[offset])),
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__pgprot(_PAGE_TABLE)));
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flush_tlb_all();
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memset(start, 0, end - start);
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}
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void __init kasan_init(void)
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{
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struct memblock_region *reg;
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unsigned long i;
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kasan_populate_early_shadow((void *)KASAN_SHADOW_START,
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(void *)kasan_mem_to_shadow((void *)
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VMALLOC_END));
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for_each_memblock(memory, reg) {
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void *start = (void *)__va(reg->base);
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void *end = (void *)__va(reg->base + reg->size);
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if (start >= end)
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break;
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populate(kasan_mem_to_shadow(start), kasan_mem_to_shadow(end));
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};
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for (i = 0; i < PTRS_PER_PTE; i++)
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set_pte(&kasan_early_shadow_pte[i],
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mk_pte(virt_to_page(kasan_early_shadow_page),
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__pgprot(_PAGE_PRESENT | _PAGE_READ |
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_PAGE_ACCESSED)));
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memset(kasan_early_shadow_page, 0, PAGE_SIZE);
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init_task.kasan_depth = 0;
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}
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