Commit 071929db authored by Laura Abbott's avatar Laura Abbott Committed by Catalin Marinas
Browse files

arm64: Stop printing the virtual memory layout 



Printing kernel addresses should be done in limited circumstances, mostly
for debugging purposes. Printing out the virtual memory layout at every
kernel bootup doesn't really fall into this category so delete the prints.
There are other ways to get the same information.

Acked-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarLaura Abbott <labbott@redhat.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 2f7aacf7

arch/arm64/mm/init.c

+0 −43
Original line number Diff line number Diff line
@@ -599,49 +599,6 @@ void __init mem_init(void) 


	mem_init_print_info(NULL);



#define MLK(b, t) b, t, ((t) - (b)) >> 10

#define MLM(b, t) b, t, ((t) - (b)) >> 20

#define MLG(b, t) b, t, ((t) - (b)) >> 30

#define MLK_ROUNDUP(b, t) b, t, DIV_ROUND_UP(((t) - (b)), SZ_1K)



	pr_notice("Virtual kernel memory layout:\n");

#ifdef CONFIG_KASAN

	pr_notice("    kasan   : 0x%16lx - 0x%16lx   (%6ld GB)\n",

		MLG(KASAN_SHADOW_START, KASAN_SHADOW_END));

#endif

	pr_notice("    modules : 0x%16lx - 0x%16lx   (%6ld MB)\n",

		MLM(MODULES_VADDR, MODULES_END));

	pr_notice("    vmalloc : 0x%16lx - 0x%16lx   (%6ld GB)\n",

		MLG(VMALLOC_START, VMALLOC_END));

	pr_notice("      .text : 0x%p" " - 0x%p" "   (%6ld KB)\n",

		MLK_ROUNDUP(_text, _etext));

	pr_notice("    .rodata : 0x%p" " - 0x%p" "   (%6ld KB)\n",

		MLK_ROUNDUP(__start_rodata, __init_begin));

	pr_notice("      .init : 0x%p" " - 0x%p" "   (%6ld KB)\n",

		MLK_ROUNDUP(__init_begin, __init_end));

	pr_notice("      .data : 0x%p" " - 0x%p" "   (%6ld KB)\n",

		MLK_ROUNDUP(_sdata, _edata));

	pr_notice("       .bss : 0x%p" " - 0x%p" "   (%6ld KB)\n",

		MLK_ROUNDUP(__bss_start, __bss_stop));

	pr_notice("    fixed   : 0x%16lx - 0x%16lx   (%6ld KB)\n",

		MLK(FIXADDR_START, FIXADDR_TOP));

	pr_notice("    PCI I/O : 0x%16lx - 0x%16lx   (%6ld MB)\n",

		MLM(PCI_IO_START, PCI_IO_END));

#ifdef CONFIG_SPARSEMEM_VMEMMAP

	pr_notice("    vmemmap : 0x%16lx - 0x%16lx   (%6ld GB maximum)\n",

		MLG(VMEMMAP_START, VMEMMAP_START + VMEMMAP_SIZE));

	pr_notice("              0x%16lx - 0x%16lx   (%6ld MB actual)\n",

		MLM((unsigned long)phys_to_page(memblock_start_of_DRAM()),

		    (unsigned long)virt_to_page(high_memory)));

#endif

	pr_notice("    memory  : 0x%16lx - 0x%16lx   (%6ld MB)\n",

		MLM(__phys_to_virt(memblock_start_of_DRAM()),

		    (unsigned long)high_memory));



#undef MLK

#undef MLM

#undef MLK_ROUNDUP



	/*

	 * Check boundaries twice: Some fundamental inconsistencies can be

	 * detected at build time already.

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