Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (22 commits) x86: fix system without memory on node0 x86, mm: Fix node_possible_map logic mm, x86: remove MEMORY_HOTPLUG_RESERVE related code x86: make sparse mem work in non-NUMA mode x86: process.c, remove useless headers x86: merge process.c a bit x86: use sparse_memory_present_with_active_regions() on UMA x86: unify 64-bit UMA and NUMA paging_init() x86: Allow 1MB of slack between the e820 map and SRAT, not 4GB x86: Sanity check the e820 against the SRAT table using e820 map only x86: clean up and and print out initial max_pfn_mapped x86/pci: remove rounding quirk from e820_setup_gap() x86, e820, pci: reserve extra free space near end of RAM x86: fix typo in address space documentation x86: 46 bit physical address support on 64 bits x86, mm: fault.c, use printk_once() in is_errata93() x86: move per-cpu mmu_gathers to mm/init.c x86: move max_pfn_mapped and max_low_pfn_mapped to setup.c x86: unify noexec handling x86: remove (null) in /sys kernel_page_tables ...
This commit is contained in:
Linus Torvalds
commit
bb7762961d
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@ -150,11 +150,6 @@ NUMA
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Otherwise, the remaining system RAM is allocated to an
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additional node.
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numa=hotadd=percent
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Only allow hotadd memory to preallocate page structures upto
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percent of already available memory.
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numa=hotadd=0 will disable hotadd memory.
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ACPI
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acpi=off Don't enable ACPI
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@ -6,10 +6,11 @@ Virtual memory map with 4 level page tables:
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0000000000000000 - 00007fffffffffff (=47 bits) user space, different per mm
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hole caused by [48:63] sign extension
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ffff800000000000 - ffff80ffffffffff (=40 bits) guard hole
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ffff880000000000 - ffffc0ffffffffff (=57 TB) direct mapping of all phys. memory
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ffffc10000000000 - ffffc1ffffffffff (=40 bits) hole
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ffffc20000000000 - ffffe1ffffffffff (=45 bits) vmalloc/ioremap space
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ffffe20000000000 - ffffe2ffffffffff (=40 bits) virtual memory map (1TB)
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ffff880000000000 - ffffc7ffffffffff (=64 TB) direct mapping of all phys. memory
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ffffc80000000000 - ffffc8ffffffffff (=40 bits) hole
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ffffc90000000000 - ffffe8ffffffffff (=45 bits) vmalloc/ioremap space
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ffffe90000000000 - ffffe9ffffffffff (=40 bits) hole
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ffffea0000000000 - ffffeaffffffffff (=40 bits) virtual memory map (1TB)
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... unused hole ...
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ffffffff80000000 - ffffffffa0000000 (=512 MB) kernel text mapping, from phys 0
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ffffffffa0000000 - fffffffffff00000 (=1536 MB) module mapping space
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@ -17,9 +17,6 @@ extern int compute_hash_shift(struct bootnode *nodes, int numblks,
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extern void numa_init_array(void);
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extern int numa_off;
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extern void srat_reserve_add_area(int nodeid);
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extern int hotadd_percent;
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extern s16 apicid_to_node[MAX_LOCAL_APIC];
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extern unsigned long numa_free_all_bootmem(void);
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@ -27,6 +24,13 @@ extern void setup_node_bootmem(int nodeid, unsigned long start,
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unsigned long end);
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#ifdef CONFIG_NUMA
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/*
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* Too small node sizes may confuse the VM badly. Usually they
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* result from BIOS bugs. So dont recognize nodes as standalone
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* NUMA entities that have less than this amount of RAM listed:
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*/
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#define NODE_MIN_SIZE (4*1024*1024)
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extern void __init init_cpu_to_node(void);
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extern void __cpuinit numa_set_node(int cpu, int node);
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extern void __cpuinit numa_clear_node(int cpu);
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@ -54,10 +54,6 @@ extern unsigned int __VMALLOC_RESERVE;
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extern int sysctl_legacy_va_layout;
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extern void find_low_pfn_range(void);
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extern unsigned long init_memory_mapping(unsigned long start,
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unsigned long end);
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extern void initmem_init(unsigned long, unsigned long);
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extern void free_initmem(void);
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extern void setup_bootmem_allocator(void);
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#endif /* !__ASSEMBLY__ */
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@ -39,7 +39,7 @@
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#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
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#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
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/* See Documentation/x86_64/mm.txt for a description of the memory map. */
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/* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */
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#define __PHYSICAL_MASK_SHIFT 46
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#define __VIRTUAL_MASK_SHIFT 48
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@ -63,12 +63,6 @@ extern unsigned long __phys_addr(unsigned long);
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#define vmemmap ((struct page *)VMEMMAP_START)
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extern unsigned long init_memory_mapping(unsigned long start,
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unsigned long end);
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extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn);
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extern void free_initmem(void);
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extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
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extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
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@ -46,6 +46,12 @@ extern int devmem_is_allowed(unsigned long pagenr);
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extern unsigned long max_low_pfn_mapped;
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extern unsigned long max_pfn_mapped;
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extern unsigned long init_memory_mapping(unsigned long start,
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unsigned long end);
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extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn);
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extern void free_initmem(void);
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_X86_PAGE_DEFS_H */
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@ -51,11 +51,11 @@ typedef struct { pteval_t pte; } pte_t;
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#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
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#define PGDIR_MASK (~(PGDIR_SIZE - 1))
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/* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */
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#define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
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#define VMALLOC_START _AC(0xffffc20000000000, UL)
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#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
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#define VMEMMAP_START _AC(0xffffe20000000000, UL)
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#define VMALLOC_START _AC(0xffffc90000000000, UL)
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#define VMALLOC_END _AC(0xffffe8ffffffffff, UL)
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#define VMEMMAP_START _AC(0xffffea0000000000, UL)
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#define MODULES_VADDR _AC(0xffffffffa0000000, UL)
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#define MODULES_END _AC(0xffffffffff000000, UL)
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#define MODULES_LEN (MODULES_END - MODULES_VADDR)
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@ -273,7 +273,6 @@ typedef struct page *pgtable_t;
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extern pteval_t __supported_pte_mask;
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extern int nx_enabled;
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extern void set_nx(void);
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#define pgprot_writecombine pgprot_writecombine
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extern pgprot_t pgprot_writecombine(pgprot_t prot);
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@ -27,7 +27,7 @@
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#else /* CONFIG_X86_32 */
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# define SECTION_SIZE_BITS 27 /* matt - 128 is convenient right now */
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# define MAX_PHYSADDR_BITS 44
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# define MAX_PHYSMEM_BITS 44 /* Can be max 45 bits */
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# define MAX_PHYSMEM_BITS 46
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#endif
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#endif /* CONFIG_SPARSEMEM */
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@ -2,6 +2,7 @@
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#define _ASM_X86_TRAPS_H
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#include <asm/debugreg.h>
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#include <asm/siginfo.h> /* TRAP_TRACE, ... */
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#ifdef CONFIG_X86_32
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#define dotraplinkage
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@ -617,7 +617,7 @@ __init int e820_search_gap(unsigned long *gapstart, unsigned long *gapsize,
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*/
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__init void e820_setup_gap(void)
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{
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unsigned long gapstart, gapsize, round;
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unsigned long gapstart, gapsize;
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int found;
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gapstart = 0x10000000;
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@ -635,14 +635,9 @@ __init void e820_setup_gap(void)
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#endif
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/*
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* See how much we want to round up: start off with
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* rounding to the next 1MB area.
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* e820_reserve_resources_late protect stolen RAM already
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*/
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round = 0x100000;
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while ((gapsize >> 4) > round)
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round += round;
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/* Fun with two's complement */
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pci_mem_start = (gapstart + round) & -round;
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pci_mem_start = gapstart;
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printk(KERN_INFO
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"Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
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@ -1371,6 +1366,23 @@ void __init e820_reserve_resources(void)
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}
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}
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/* How much should we pad RAM ending depending on where it is? */
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static unsigned long ram_alignment(resource_size_t pos)
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{
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unsigned long mb = pos >> 20;
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/* To 64kB in the first megabyte */
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if (!mb)
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return 64*1024;
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/* To 1MB in the first 16MB */
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if (mb < 16)
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return 1024*1024;
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/* To 32MB for anything above that */
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return 32*1024*1024;
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}
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void __init e820_reserve_resources_late(void)
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{
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int i;
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@ -1382,6 +1394,24 @@ void __init e820_reserve_resources_late(void)
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insert_resource_expand_to_fit(&iomem_resource, res);
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res++;
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}
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/*
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* Try to bump up RAM regions to reasonable boundaries to
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* avoid stolen RAM:
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*/
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for (i = 0; i < e820.nr_map; i++) {
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struct e820entry *entry = &e820_saved.map[i];
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resource_size_t start, end;
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if (entry->type != E820_RAM)
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continue;
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start = entry->addr + entry->size;
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end = round_up(start, ram_alignment(start));
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if (start == end)
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continue;
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reserve_region_with_split(&iomem_resource, start,
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end - 1, "RAM buffer");
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}
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}
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char *__init default_machine_specific_memory_setup(void)
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@ -8,6 +8,7 @@
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#include <linux/module.h>
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#include <linux/pm.h>
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#include <linux/clockchips.h>
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#include <linux/random.h>
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#include <trace/power.h>
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#include <asm/system.h>
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#include <asm/apic.h>
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@ -614,3 +615,16 @@ static int __init idle_setup(char *str)
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}
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early_param("idle", idle_setup);
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unsigned long arch_align_stack(unsigned long sp)
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{
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if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
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sp -= get_random_int() % 8192;
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return sp & ~0xf;
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}
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unsigned long arch_randomize_brk(struct mm_struct *mm)
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{
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unsigned long range_end = mm->brk + 0x02000000;
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return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
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}
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@ -9,8 +9,6 @@
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* This file handles the architecture-dependent parts of process handling..
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*/
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#include <stdarg.h>
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#include <linux/stackprotector.h>
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#include <linux/cpu.h>
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#include <linux/errno.h>
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@ -33,7 +31,6 @@
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#include <linux/module.h>
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#include <linux/kallsyms.h>
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#include <linux/ptrace.h>
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#include <linux/random.h>
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#include <linux/personality.h>
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#include <linux/tick.h>
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#include <linux/percpu.h>
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|
|
@ -497,15 +494,3 @@ unsigned long get_wchan(struct task_struct *p)
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return 0;
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}
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unsigned long arch_align_stack(unsigned long sp)
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{
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if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
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sp -= get_random_int() % 8192;
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return sp & ~0xf;
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}
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unsigned long arch_randomize_brk(struct mm_struct *mm)
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{
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unsigned long range_end = mm->brk + 0x02000000;
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return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
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}
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|
|
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|
|
@ -14,8 +14,6 @@
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* This file handles the architecture-dependent parts of process handling..
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*/
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#include <stdarg.h>
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#include <linux/stackprotector.h>
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#include <linux/cpu.h>
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#include <linux/errno.h>
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|
|
@ -32,7 +30,6 @@
|
|||
#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/ptrace.h>
|
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#include <linux/random.h>
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#include <linux/notifier.h>
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#include <linux/kprobes.h>
|
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#include <linux/kdebug.h>
|
||||
|
|
@ -660,15 +657,3 @@ long sys_arch_prctl(int code, unsigned long addr)
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|||
return do_arch_prctl(current, code, addr);
|
||||
}
|
||||
|
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unsigned long arch_align_stack(unsigned long sp)
|
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{
|
||||
if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
|
||||
sp -= get_random_int() % 8192;
|
||||
return sp & ~0xf;
|
||||
}
|
||||
|
||||
unsigned long arch_randomize_brk(struct mm_struct *mm)
|
||||
{
|
||||
unsigned long range_end = mm->brk + 0x02000000;
|
||||
return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -112,6 +112,14 @@
|
|||
#define ARCH_SETUP
|
||||
#endif
|
||||
|
||||
/*
|
||||
* end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
|
||||
* The direct mapping extends to max_pfn_mapped, so that we can directly access
|
||||
* apertures, ACPI and other tables without having to play with fixmaps.
|
||||
*/
|
||||
unsigned long max_low_pfn_mapped;
|
||||
unsigned long max_pfn_mapped;
|
||||
|
||||
RESERVE_BRK(dmi_alloc, 65536);
|
||||
|
||||
unsigned int boot_cpu_id __read_mostly;
|
||||
|
|
@ -860,12 +868,16 @@ void __init setup_arch(char **cmdline_p)
|
|||
max_low_pfn = max_pfn;
|
||||
|
||||
high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1;
|
||||
max_pfn_mapped = KERNEL_IMAGE_SIZE >> PAGE_SHIFT;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION
|
||||
setup_bios_corruption_check();
|
||||
#endif
|
||||
|
||||
printk(KERN_DEBUG "initial memory mapped : 0 - %08lx\n",
|
||||
max_pfn_mapped<<PAGE_SHIFT);
|
||||
|
||||
reserve_brk();
|
||||
|
||||
/* max_pfn_mapped is updated here */
|
||||
|
|
|
|||
|
|
@ -425,6 +425,14 @@ void __init setup_per_cpu_areas(void)
|
|||
early_per_cpu_ptr(x86_cpu_to_node_map) = NULL;
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_X86_64) && defined(CONFIG_NUMA)
|
||||
/*
|
||||
* make sure boot cpu node_number is right, when boot cpu is on the
|
||||
* node that doesn't have mem installed
|
||||
*/
|
||||
per_cpu(node_number, boot_cpu_id) = cpu_to_node(boot_cpu_id);
|
||||
#endif
|
||||
|
||||
/* Setup node to cpumask map */
|
||||
setup_node_to_cpumask_map();
|
||||
|
||||
|
|
|
|||
|
|
@ -161,13 +161,14 @@ static void note_page(struct seq_file *m, struct pg_state *st,
|
|||
st->current_address >= st->marker[1].start_address) {
|
||||
const char *unit = units;
|
||||
unsigned long delta;
|
||||
int width = sizeof(unsigned long) * 2;
|
||||
|
||||
/*
|
||||
* Now print the actual finished series
|
||||
*/
|
||||
seq_printf(m, "0x%p-0x%p ",
|
||||
(void *)st->start_address,
|
||||
(void *)st->current_address);
|
||||
seq_printf(m, "0x%0*lx-0x%0*lx ",
|
||||
width, st->start_address,
|
||||
width, st->current_address);
|
||||
|
||||
delta = (st->current_address - st->start_address) >> 10;
|
||||
while (!(delta & 1023) && unit[1]) {
|
||||
|
|
|
|||
|
|
@ -3,40 +3,16 @@
|
|||
* Copyright (C) 2001, 2002 Andi Kleen, SuSE Labs.
|
||||
* Copyright (C) 2008-2009, Red Hat Inc., Ingo Molnar
|
||||
*/
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/mmiotrace.h>
|
||||
#include <linux/bootmem.h>
|
||||
#include <linux/compiler.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <linux/kprobes.h>
|
||||
#include <linux/uaccess.h>
|
||||
#include <linux/vmalloc.h>
|
||||
#include <linux/vt_kern.h>
|
||||
#include <linux/signal.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/ptrace.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/kdebug.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/magic.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/mman.h>
|
||||
#include <linux/tty.h>
|
||||
#include <linux/smp.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/magic.h> /* STACK_END_MAGIC */
|
||||
#include <linux/sched.h> /* test_thread_flag(), ... */
|
||||
#include <linux/kdebug.h> /* oops_begin/end, ... */
|
||||
#include <linux/module.h> /* search_exception_table */
|
||||
#include <linux/bootmem.h> /* max_low_pfn */
|
||||
#include <linux/kprobes.h> /* __kprobes, ... */
|
||||
#include <linux/mmiotrace.h> /* kmmio_handler, ... */
|
||||
|
||||
#include <asm-generic/sections.h>
|
||||
|
||||
#include <asm/tlbflush.h>
|
||||
#include <asm/pgalloc.h>
|
||||
#include <asm/segment.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/proto.h>
|
||||
#include <asm/traps.h>
|
||||
#include <asm/desc.h>
|
||||
#include <asm/traps.h> /* dotraplinkage, ... */
|
||||
#include <asm/pgalloc.h> /* pgd_*(), ... */
|
||||
|
||||
/*
|
||||
* Page fault error code bits:
|
||||
|
|
@ -538,8 +514,6 @@ bad:
|
|||
static int is_errata93(struct pt_regs *regs, unsigned long address)
|
||||
{
|
||||
#ifdef CONFIG_X86_64
|
||||
static int once;
|
||||
|
||||
if (address != regs->ip)
|
||||
return 0;
|
||||
|
||||
|
|
@ -549,10 +523,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
|
|||
address |= 0xffffffffUL << 32;
|
||||
if ((address >= (u64)_stext && address <= (u64)_etext) ||
|
||||
(address >= MODULES_VADDR && address <= MODULES_END)) {
|
||||
if (!once) {
|
||||
printk(errata93_warning);
|
||||
once = 1;
|
||||
}
|
||||
printk_once(errata93_warning);
|
||||
regs->ip = address;
|
||||
return 1;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -11,6 +11,9 @@
|
|||
#include <asm/setup.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/tlbflush.h>
|
||||
#include <asm/tlb.h>
|
||||
|
||||
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
|
||||
|
||||
unsigned long __initdata e820_table_start;
|
||||
unsigned long __meminitdata e820_table_end;
|
||||
|
|
@ -24,6 +27,69 @@ int direct_gbpages
|
|||
#endif
|
||||
;
|
||||
|
||||
int nx_enabled;
|
||||
|
||||
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
|
||||
static int disable_nx __cpuinitdata;
|
||||
|
||||
/*
|
||||
* noexec = on|off
|
||||
*
|
||||
* Control non-executable mappings for processes.
|
||||
*
|
||||
* on Enable
|
||||
* off Disable
|
||||
*/
|
||||
static int __init noexec_setup(char *str)
|
||||
{
|
||||
if (!str)
|
||||
return -EINVAL;
|
||||
if (!strncmp(str, "on", 2)) {
|
||||
__supported_pte_mask |= _PAGE_NX;
|
||||
disable_nx = 0;
|
||||
} else if (!strncmp(str, "off", 3)) {
|
||||
disable_nx = 1;
|
||||
__supported_pte_mask &= ~_PAGE_NX;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
early_param("noexec", noexec_setup);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_PAE
|
||||
static void __init set_nx(void)
|
||||
{
|
||||
unsigned int v[4], l, h;
|
||||
|
||||
if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) {
|
||||
cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]);
|
||||
|
||||
if ((v[3] & (1 << 20)) && !disable_nx) {
|
||||
rdmsr(MSR_EFER, l, h);
|
||||
l |= EFER_NX;
|
||||
wrmsr(MSR_EFER, l, h);
|
||||
nx_enabled = 1;
|
||||
__supported_pte_mask |= _PAGE_NX;
|
||||
}
|
||||
}
|
||||
}
|
||||
#else
|
||||
static inline void set_nx(void)
|
||||
{
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
void __cpuinit check_efer(void)
|
||||
{
|
||||
unsigned long efer;
|
||||
|
||||
rdmsrl(MSR_EFER, efer);
|
||||
if (!(efer & EFER_NX) || disable_nx)
|
||||
__supported_pte_mask &= ~_PAGE_NX;
|
||||
}
|
||||
#endif
|
||||
|
||||
static void __init find_early_table_space(unsigned long end, int use_pse,
|
||||
int use_gbpages)
|
||||
{
|
||||
|
|
@ -67,12 +133,11 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
|
|||
*/
|
||||
#ifdef CONFIG_X86_32
|
||||
start = 0x7000;
|
||||
#else
|
||||
start = 0x8000;
|
||||
#endif
|
||||
e820_table_start = find_e820_area(start, max_pfn_mapped<<PAGE_SHIFT,
|
||||
tables, PAGE_SIZE);
|
||||
#else /* CONFIG_X86_64 */
|
||||
start = 0x8000;
|
||||
e820_table_start = find_e820_area(start, end, tables, PAGE_SIZE);
|
||||
#endif
|
||||
if (e820_table_start == -1UL)
|
||||
panic("Cannot find space for the kernel page tables");
|
||||
|
||||
|
|
@ -160,12 +225,9 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
|
|||
use_gbpages = direct_gbpages;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_32
|
||||
#ifdef CONFIG_X86_PAE
|
||||
set_nx();
|
||||
if (nx_enabled)
|
||||
printk(KERN_INFO "NX (Execute Disable) protection: active\n");
|
||||
#endif
|
||||
|
||||
/* Enable PSE if available */
|
||||
if (cpu_has_pse)
|
||||
|
|
@ -176,7 +238,6 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
|
|||
set_in_cr4(X86_CR4_PGE);
|
||||
__supported_pte_mask |= _PAGE_GLOBAL;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (use_gbpages)
|
||||
page_size_mask |= 1 << PG_LEVEL_1G;
|
||||
|
|
|
|||
|
|
@ -49,12 +49,9 @@
|
|||
#include <asm/paravirt.h>
|
||||
#include <asm/setup.h>
|
||||
#include <asm/cacheflush.h>
|
||||
#include <asm/page_types.h>
|
||||
#include <asm/init.h>
|
||||
|
||||
unsigned long max_low_pfn_mapped;
|
||||
unsigned long max_pfn_mapped;
|
||||
|
||||
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
|
||||
unsigned long highstart_pfn, highend_pfn;
|
||||
|
||||
static noinline int do_test_wp_bit(void);
|
||||
|
|
@ -587,61 +584,9 @@ void zap_low_mappings(void)
|
|||
flush_tlb_all();
|
||||
}
|
||||
|
||||
int nx_enabled;
|
||||
|
||||
pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
|
||||
EXPORT_SYMBOL_GPL(__supported_pte_mask);
|
||||
|
||||
#ifdef CONFIG_X86_PAE
|
||||
|
||||
static int disable_nx __initdata;
|
||||
|
||||
/*
|
||||
* noexec = on|off
|
||||
*
|
||||
* Control non executable mappings.
|
||||
*
|
||||
* on Enable
|
||||
* off Disable
|
||||
*/
|
||||
static int __init noexec_setup(char *str)
|
||||
{
|
||||
if (!str || !strcmp(str, "on")) {
|
||||
if (cpu_has_nx) {
|
||||
__supported_pte_mask |= _PAGE_NX;
|
||||
disable_nx = 0;
|
||||
}
|
||||
} else {
|
||||
if (!strcmp(str, "off")) {
|
||||
disable_nx = 1;
|
||||
__supported_pte_mask &= ~_PAGE_NX;
|
||||
} else {
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
early_param("noexec", noexec_setup);
|
||||
|
||||
void __init set_nx(void)
|
||||
{
|
||||
unsigned int v[4], l, h;
|
||||
|
||||
if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) {
|
||||
cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]);
|
||||
|
||||
if ((v[3] & (1 << 20)) && !disable_nx) {
|
||||
rdmsr(MSR_EFER, l, h);
|
||||
l |= EFER_NX;
|
||||
wrmsr(MSR_EFER, l, h);
|
||||
nx_enabled = 1;
|
||||
__supported_pte_mask |= _PAGE_NX;
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/* user-defined highmem size */
|
||||
static unsigned int highmem_pages = -1;
|
||||
|
||||
|
|
@ -761,15 +706,15 @@ void __init initmem_init(unsigned long start_pfn,
|
|||
highstart_pfn = highend_pfn = max_pfn;
|
||||
if (max_pfn > max_low_pfn)
|
||||
highstart_pfn = max_low_pfn;
|
||||
memory_present(0, 0, highend_pfn);
|
||||
e820_register_active_regions(0, 0, highend_pfn);
|
||||
sparse_memory_present_with_active_regions(0);
|
||||
printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
|
||||
pages_to_mb(highend_pfn - highstart_pfn));
|
||||
num_physpages = highend_pfn;
|
||||
high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
|
||||
#else
|
||||
memory_present(0, 0, max_low_pfn);
|
||||
e820_register_active_regions(0, 0, max_low_pfn);
|
||||
sparse_memory_present_with_active_regions(0);
|
||||
num_physpages = max_low_pfn;
|
||||
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -50,18 +50,8 @@
|
|||
#include <asm/cacheflush.h>
|
||||
#include <asm/init.h>
|
||||
|
||||
/*
|
||||
* end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
|
||||
* The direct mapping extends to max_pfn_mapped, so that we can directly access
|
||||
* apertures, ACPI and other tables without having to play with fixmaps.
|
||||
*/
|
||||
unsigned long max_low_pfn_mapped;
|
||||
unsigned long max_pfn_mapped;
|
||||
|
||||
static unsigned long dma_reserve __initdata;
|
||||
|
||||
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
|
||||
|
||||
static int __init parse_direct_gbpages_off(char *arg)
|
||||
{
|
||||
direct_gbpages = 0;
|
||||
|
|
@ -85,39 +75,6 @@ early_param("gbpages", parse_direct_gbpages_on);
|
|||
pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP;
|
||||
EXPORT_SYMBOL_GPL(__supported_pte_mask);
|
||||
|
||||
static int disable_nx __cpuinitdata;
|
||||
|
||||
/*
|
||||
* noexec=on|off
|
||||
* Control non-executable mappings for 64-bit processes.
|
||||
*
|
||||
* on Enable (default)
|
||||
* off Disable
|
||||
*/
|
||||
static int __init nonx_setup(char *str)
|
||||
{
|
||||
if (!str)
|
||||
return -EINVAL;
|
||||
if (!strncmp(str, "on", 2)) {
|
||||
__supported_pte_mask |= _PAGE_NX;
|
||||
disable_nx = 0;
|
||||
} else if (!strncmp(str, "off", 3)) {
|
||||
disable_nx = 1;
|
||||
__supported_pte_mask &= ~_PAGE_NX;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
early_param("noexec", nonx_setup);
|
||||
|
||||
void __cpuinit check_efer(void)
|
||||
{
|
||||
unsigned long efer;
|
||||
|
||||
rdmsrl(MSR_EFER, efer);
|
||||
if (!(efer & EFER_NX) || disable_nx)
|
||||
__supported_pte_mask &= ~_PAGE_NX;
|
||||
}
|
||||
|
||||
int force_personality32;
|
||||
|
||||
/*
|
||||
|
|
@ -628,6 +585,7 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn)
|
|||
early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
|
||||
reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
|
||||
}
|
||||
#endif
|
||||
|
||||
void __init paging_init(void)
|
||||
{
|
||||
|
|
@ -638,11 +596,10 @@ void __init paging_init(void)
|
|||
max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
|
||||
max_zone_pfns[ZONE_NORMAL] = max_pfn;
|
||||
|
||||
memory_present(0, 0, max_pfn);
|
||||
sparse_memory_present_with_active_regions(MAX_NUMNODES);
|
||||
sparse_init();
|
||||
free_area_init_nodes(max_zone_pfns);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Memory hotplug specific functions
|
||||
|
|
|
|||
|
|
@ -179,18 +179,25 @@ static void * __init early_node_mem(int nodeid, unsigned long start,
|
|||
}
|
||||
|
||||
/* Initialize bootmem allocator for a node */
|
||||
void __init setup_node_bootmem(int nodeid, unsigned long start,
|
||||
unsigned long end)
|
||||
void __init
|
||||
setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
|
||||
{
|
||||
unsigned long start_pfn, last_pfn, bootmap_pages, bootmap_size;
|
||||
const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
|
||||
unsigned long bootmap_start, nodedata_phys;
|
||||
void *bootmap;
|
||||
const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
|
||||
int nid;
|
||||
|
||||
if (!end)
|
||||
return;
|
||||
|
||||
/*
|
||||
* Don't confuse VM with a node that doesn't have the
|
||||
* minimum amount of memory:
|
||||
*/
|
||||
if (end && (end - start) < NODE_MIN_SIZE)
|
||||
return;
|
||||
|
||||
start = roundup(start, ZONE_ALIGN);
|
||||
|
||||
printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid,
|
||||
|
|
@ -272,9 +279,6 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
|
|||
reserve_bootmem_node(NODE_DATA(nodeid), bootmap_start,
|
||||
bootmap_pages<<PAGE_SHIFT, BOOTMEM_DEFAULT);
|
||||
|
||||
#ifdef CONFIG_ACPI_NUMA
|
||||
srat_reserve_add_area(nodeid);
|
||||
#endif
|
||||
node_set_online(nodeid);
|
||||
}
|
||||
|
||||
|
|
@ -578,21 +582,6 @@ unsigned long __init numa_free_all_bootmem(void)
|
|||
return pages;
|
||||
}
|
||||
|
||||
void __init paging_init(void)
|
||||
{
|
||||
unsigned long max_zone_pfns[MAX_NR_ZONES];
|
||||
|
||||
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
|
||||
max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
|
||||
max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
|
||||
max_zone_pfns[ZONE_NORMAL] = max_pfn;
|
||||
|
||||
sparse_memory_present_with_active_regions(MAX_NUMNODES);
|
||||
sparse_init();
|
||||
|
||||
free_area_init_nodes(max_zone_pfns);
|
||||
}
|
||||
|
||||
static __init int numa_setup(char *opt)
|
||||
{
|
||||
if (!opt)
|
||||
|
|
@ -606,8 +595,6 @@ static __init int numa_setup(char *opt)
|
|||
#ifdef CONFIG_ACPI_NUMA
|
||||
if (!strncmp(opt, "noacpi", 6))
|
||||
acpi_numa = -1;
|
||||
if (!strncmp(opt, "hotadd=", 7))
|
||||
hotadd_percent = simple_strtoul(opt+7, NULL, 10);
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -31,17 +31,11 @@ static nodemask_t nodes_parsed __initdata;
|
|||
static nodemask_t cpu_nodes_parsed __initdata;
|
||||
static struct bootnode nodes[MAX_NUMNODES] __initdata;
|
||||
static struct bootnode nodes_add[MAX_NUMNODES];
|
||||
static int found_add_area __initdata;
|
||||
int hotadd_percent __initdata = 0;
|
||||
|
||||
static int num_node_memblks __initdata;
|
||||
static struct bootnode node_memblk_range[NR_NODE_MEMBLKS] __initdata;
|
||||
static int memblk_nodeid[NR_NODE_MEMBLKS] __initdata;
|
||||
|
||||
/* Too small nodes confuse the VM badly. Usually they result
|
||||
from BIOS bugs. */
|
||||
#define NODE_MIN_SIZE (4*1024*1024)
|
||||
|
||||
static __init int setup_node(int pxm)
|
||||
{
|
||||
return acpi_map_pxm_to_node(pxm);
|
||||
|
|
@ -66,9 +60,6 @@ static __init void cutoff_node(int i, unsigned long start, unsigned long end)
|
|||
{
|
||||
struct bootnode *nd = &nodes[i];
|
||||
|
||||
if (found_add_area)
|
||||
return;
|
||||
|
||||
if (nd->start < start) {
|
||||
nd->start = start;
|
||||
if (nd->end < nd->start)
|
||||
|
|
@ -86,7 +77,6 @@ static __init void bad_srat(void)
|
|||
int i;
|
||||
printk(KERN_ERR "SRAT: SRAT not used.\n");
|
||||
acpi_numa = -1;
|
||||
found_add_area = 0;
|
||||
for (i = 0; i < MAX_LOCAL_APIC; i++)
|
||||
apicid_to_node[i] = NUMA_NO_NODE;
|
||||
for (i = 0; i < MAX_NUMNODES; i++)
|
||||
|
|
@ -182,24 +172,21 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
|
|||
pxm, apic_id, node);
|
||||
}
|
||||
|
||||
static int update_end_of_memory(unsigned long end) {return -1;}
|
||||
static int hotadd_enough_memory(struct bootnode *nd) {return 1;}
|
||||
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
|
||||
static inline int save_add_info(void) {return 1;}
|
||||
#else
|
||||
static inline int save_add_info(void) {return 0;}
|
||||
#endif
|
||||
/*
|
||||
* Update nodes_add and decide if to include add are in the zone.
|
||||
* Both SPARSE and RESERVE need nodes_add information.
|
||||
* This code supports one contiguous hot add area per node.
|
||||
* Update nodes_add[]
|
||||
* This code supports one contiguous hot add area per node
|
||||
*/
|
||||
static int __init
|
||||
reserve_hotadd(int node, unsigned long start, unsigned long end)
|
||||
static void __init
|
||||
update_nodes_add(int node, unsigned long start, unsigned long end)
|
||||
{
|
||||
unsigned long s_pfn = start >> PAGE_SHIFT;
|
||||
unsigned long e_pfn = end >> PAGE_SHIFT;
|
||||
int ret = 0, changed = 0;
|
||||
int changed = 0;
|
||||
struct bootnode *nd = &nodes_add[node];
|
||||
|
||||
/* I had some trouble with strange memory hotadd regions breaking
|
||||
|
|
@ -210,7 +197,7 @@ reserve_hotadd(int node, unsigned long start, unsigned long end)
|
|||
mistakes */
|
||||
if ((signed long)(end - start) < NODE_MIN_SIZE) {
|
||||
printk(KERN_ERR "SRAT: Hotplug area too small\n");
|
||||
return -1;
|
||||
return;
|
||||
}
|
||||
|
||||
/* This check might be a bit too strict, but I'm keeping it for now. */
|
||||
|
|
@ -218,12 +205,7 @@ reserve_hotadd(int node, unsigned long start, unsigned long end)
|
|||
printk(KERN_ERR
|
||||
"SRAT: Hotplug area %lu -> %lu has existing memory\n",
|
||||
s_pfn, e_pfn);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!hotadd_enough_memory(&nodes_add[node])) {
|
||||
printk(KERN_ERR "SRAT: Hotplug area too large\n");
|
||||
return -1;
|
||||
return;
|
||||
}
|
||||
|
||||
/* Looks good */
|
||||
|
|
@ -245,11 +227,9 @@ reserve_hotadd(int node, unsigned long start, unsigned long end)
|
|||
printk(KERN_ERR "SRAT: Hotplug zone not continuous. Partly ignored\n");
|
||||
}
|
||||
|
||||
ret = update_end_of_memory(nd->end);
|
||||
|
||||
if (changed)
|
||||
printk(KERN_INFO "SRAT: hot plug zone found %Lx - %Lx\n", nd->start, nd->end);
|
||||
return ret;
|
||||
printk(KERN_INFO "SRAT: hot plug zone found %Lx - %Lx\n",
|
||||
nd->start, nd->end);
|
||||
}
|
||||
|
||||
/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
|
||||
|
|
@ -310,13 +290,10 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
|
|||
start, end);
|
||||
e820_register_active_regions(node, start >> PAGE_SHIFT,
|
||||
end >> PAGE_SHIFT);
|
||||
push_node_boundaries(node, nd->start >> PAGE_SHIFT,
|
||||
nd->end >> PAGE_SHIFT);
|
||||
|
||||
if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) &&
|
||||
(reserve_hotadd(node, start, end) < 0)) {
|
||||
/* Ignore hotadd region. Undo damage */
|
||||
printk(KERN_NOTICE "SRAT: Hotplug region ignored\n");
|
||||
if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) {
|
||||
update_nodes_add(node, start, end);
|
||||
/* restore nodes[node] */
|
||||
*nd = oldnode;
|
||||
if ((nd->start | nd->end) == 0)
|
||||
node_clear(node, nodes_parsed);
|
||||
|
|
@ -345,9 +322,9 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
|
|||
pxmram = 0;
|
||||
}
|
||||
|
||||
e820ram = max_pfn - absent_pages_in_range(0, max_pfn);
|
||||
/* We seem to lose 3 pages somewhere. Allow a bit of slack. */
|
||||
if ((long)(e820ram - pxmram) >= 1*1024*1024) {
|
||||
e820ram = max_pfn - (e820_hole_size(0, max_pfn<<PAGE_SHIFT)>>PAGE_SHIFT);
|
||||
/* We seem to lose 3 pages somewhere. Allow 1M of slack. */
|
||||
if ((long)(e820ram - pxmram) >= (1<<(20 - PAGE_SHIFT))) {
|
||||
printk(KERN_ERR
|
||||
"SRAT: PXMs only cover %luMB of your %luMB e820 RAM. Not used.\n",
|
||||
(pxmram << PAGE_SHIFT) >> 20,
|
||||
|
|
@ -357,17 +334,6 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
|
|||
return 1;
|
||||
}
|
||||
|
||||
static void __init unparse_node(int node)
|
||||
{
|
||||
int i;
|
||||
node_clear(node, nodes_parsed);
|
||||
node_clear(node, cpu_nodes_parsed);
|
||||
for (i = 0; i < MAX_LOCAL_APIC; i++) {
|
||||
if (apicid_to_node[i] == node)
|
||||
apicid_to_node[i] = NUMA_NO_NODE;
|
||||
}
|
||||
}
|
||||
|
||||
void __init acpi_numa_arch_fixup(void) {}
|
||||
|
||||
/* Use the information discovered above to actually set up the nodes. */
|
||||
|
|
@ -379,18 +345,8 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
|
|||
return -1;
|
||||
|
||||
/* First clean up the node list */
|
||||
for (i = 0; i < MAX_NUMNODES; i++) {
|
||||
for (i = 0; i < MAX_NUMNODES; i++)
|
||||
cutoff_node(i, start, end);
|
||||
/*
|
||||
* don't confuse VM with a node that doesn't have the
|
||||
* minimum memory.
|
||||
*/
|
||||
if (nodes[i].end &&
|
||||
(nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) {
|
||||
unparse_node(i);
|
||||
node_set_offline(i);
|
||||
}
|
||||
}
|
||||
|
||||
if (!nodes_cover_memory(nodes)) {
|
||||
bad_srat();
|
||||
|
|
@ -423,7 +379,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
|
|||
|
||||
if (node == NUMA_NO_NODE)
|
||||
continue;
|
||||
if (!node_isset(node, node_possible_map))
|
||||
if (!node_online(node))
|
||||
numa_clear_node(i);
|
||||
}
|
||||
numa_init_array();
|
||||
|
|
@ -510,26 +466,6 @@ static int null_slit_node_compare(int a, int b)
|
|||
}
|
||||
#endif /* CONFIG_NUMA_EMU */
|
||||
|
||||
void __init srat_reserve_add_area(int nodeid)
|
||||
{
|
||||
if (found_add_area && nodes_add[nodeid].end) {
|
||||
u64 total_mb;
|
||||
|
||||
printk(KERN_INFO "SRAT: Reserving hot-add memory space "
|
||||
"for node %d at %Lx-%Lx\n",
|
||||
nodeid, nodes_add[nodeid].start, nodes_add[nodeid].end);
|
||||
total_mb = (nodes_add[nodeid].end - nodes_add[nodeid].start)
|
||||
>> PAGE_SHIFT;
|
||||
total_mb *= sizeof(struct page);
|
||||
total_mb >>= 20;
|
||||
printk(KERN_INFO "SRAT: This will cost you %Lu MB of "
|
||||
"pre-allocated memory.\n", (unsigned long long)total_mb);
|
||||
reserve_bootmem_node(NODE_DATA(nodeid), nodes_add[nodeid].start,
|
||||
nodes_add[nodeid].end - nodes_add[nodeid].start,
|
||||
BOOTMEM_DEFAULT);
|
||||
}
|
||||
}
|
||||
|
||||
int __node_distance(int a, int b)
|
||||
{
|
||||
int index;
|
||||
|
|
|
|||
|
|
@ -1031,8 +1031,6 @@ extern void add_active_range(unsigned int nid, unsigned long start_pfn,
|
|||
unsigned long end_pfn);
|
||||
extern void remove_active_range(unsigned int nid, unsigned long start_pfn,
|
||||
unsigned long end_pfn);
|
||||
extern void push_node_boundaries(unsigned int nid, unsigned long start_pfn,
|
||||
unsigned long end_pfn);
|
||||
extern void remove_all_active_ranges(void);
|
||||
extern unsigned long absent_pages_in_range(unsigned long start_pfn,
|
||||
unsigned long end_pfn);
|
||||
|
|
|
|||
|
|
@ -149,10 +149,6 @@ static unsigned long __meminitdata dma_reserve;
|
|||
static int __meminitdata nr_nodemap_entries;
|
||||
static unsigned long __meminitdata arch_zone_lowest_possible_pfn[MAX_NR_ZONES];
|
||||
static unsigned long __meminitdata arch_zone_highest_possible_pfn[MAX_NR_ZONES];
|
||||
#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
|
||||
static unsigned long __meminitdata node_boundary_start_pfn[MAX_NUMNODES];
|
||||
static unsigned long __meminitdata node_boundary_end_pfn[MAX_NUMNODES];
|
||||
#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */
|
||||
static unsigned long __initdata required_kernelcore;
|
||||
static unsigned long __initdata required_movablecore;
|
||||
static unsigned long __meminitdata zone_movable_pfn[MAX_NUMNODES];
|
||||
|
|
@ -3102,64 +3098,6 @@ void __init sparse_memory_present_with_active_regions(int nid)
|
|||
early_node_map[i].end_pfn);
|
||||
}
|
||||
|
||||
/**
|
||||
* push_node_boundaries - Push node boundaries to at least the requested boundary
|
||||
* @nid: The nid of the node to push the boundary for
|
||||
* @start_pfn: The start pfn of the node
|
||||
* @end_pfn: The end pfn of the node
|
||||
*
|
||||
* In reserve-based hot-add, mem_map is allocated that is unused until hotadd
|
||||
* time. Specifically, on x86_64, SRAT will report ranges that can potentially
|
||||
* be hotplugged even though no physical memory exists. This function allows
|
||||
* an arch to push out the node boundaries so mem_map is allocated that can
|
||||
* be used later.
|
||||
*/
|
||||
#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
|
||||
void __init push_node_boundaries(unsigned int nid,
|
||||
unsigned long start_pfn, unsigned long end_pfn)
|
||||
{
|
||||
mminit_dprintk(MMINIT_TRACE, "zoneboundary",
|
||||
"Entering push_node_boundaries(%u, %lu, %lu)\n",
|
||||
nid, start_pfn, end_pfn);
|
||||
|
||||
/* Initialise the boundary for this node if necessary */
|
||||
if (node_boundary_end_pfn[nid] == 0)
|
||||
node_boundary_start_pfn[nid] = -1UL;
|
||||
|
||||
/* Update the boundaries */
|
||||
if (node_boundary_start_pfn[nid] > start_pfn)
|
||||
node_boundary_start_pfn[nid] = start_pfn;
|
||||
if (node_boundary_end_pfn[nid] < end_pfn)
|
||||
node_boundary_end_pfn[nid] = end_pfn;
|
||||
}
|
||||
|
||||
/* If necessary, push the node boundary out for reserve hotadd */
|
||||
static void __meminit account_node_boundary(unsigned int nid,
|
||||
unsigned long *start_pfn, unsigned long *end_pfn)
|
||||
{
|
||||
mminit_dprintk(MMINIT_TRACE, "zoneboundary",
|
||||
"Entering account_node_boundary(%u, %lu, %lu)\n",
|
||||
nid, *start_pfn, *end_pfn);
|
||||
|
||||
/* Return if boundary information has not been provided */
|
||||
if (node_boundary_end_pfn[nid] == 0)
|
||||
return;
|
||||
|
||||
/* Check the boundaries and update if necessary */
|
||||
if (node_boundary_start_pfn[nid] < *start_pfn)
|
||||
*start_pfn = node_boundary_start_pfn[nid];
|
||||
if (node_boundary_end_pfn[nid] > *end_pfn)
|
||||
*end_pfn = node_boundary_end_pfn[nid];
|
||||
}
|
||||
#else
|
||||
void __init push_node_boundaries(unsigned int nid,
|
||||
unsigned long start_pfn, unsigned long end_pfn) {}
|
||||
|
||||
static void __meminit account_node_boundary(unsigned int nid,
|
||||
unsigned long *start_pfn, unsigned long *end_pfn) {}
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* get_pfn_range_for_nid - Return the start and end page frames for a node
|
||||
* @nid: The nid to return the range for. If MAX_NUMNODES, the min and max PFN are returned.
|
||||
|
|
@ -3185,9 +3123,6 @@ void __meminit get_pfn_range_for_nid(unsigned int nid,
|
|||
|
||||
if (*start_pfn == -1UL)
|
||||
*start_pfn = 0;
|
||||
|
||||
/* Push the node boundaries out if requested */
|
||||
account_node_boundary(nid, start_pfn, end_pfn);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -3793,10 +3728,6 @@ void __init remove_all_active_ranges(void)
|
|||
{
|
||||
memset(early_node_map, 0, sizeof(early_node_map));
|
||||
nr_nodemap_entries = 0;
|
||||
#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE
|
||||
memset(node_boundary_start_pfn, 0, sizeof(node_boundary_start_pfn));
|
||||
memset(node_boundary_end_pfn, 0, sizeof(node_boundary_end_pfn));
|
||||
#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */
|
||||
}
|
||||
|
||||
/* Compare two active node_active_regions */
|
||||
|
|
|
|||
Reference in New Issue