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Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 mm updates from Ingo Molnar:
 "The main x86 MM changes in this cycle were:

   - continued native kernel PCID support preparation patches to the TLB
     flushing code (Andy Lutomirski)

   - various fixes related to 32-bit compat syscall returning address
     over 4Gb in applications, launched from 64-bit binaries - motivated
     by C/R frameworks such as Virtuozzo. (Dmitry Safonov)

   - continued Intel 5-level paging enablement: in particular the
     conversion of x86 GUP to the generic GUP code. (Kirill A. Shutemov)

   - x86/mpx ABI corner case fixes/enhancements (Joerg Roedel)

   - ... plus misc updates, fixes and cleanups"

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (62 commits)
  mm, zone_device: Replace {get, put}_zone_device_page() with a single reference to fix pmem crash
  x86/mm: Fix flush_tlb_page() on Xen
  x86/mm: Make flush_tlb_mm_range() more predictable
  x86/mm: Remove flush_tlb() and flush_tlb_current_task()
  x86/vm86/32: Switch to flush_tlb_mm_range() in mark_screen_rdonly()
  x86/mm/64: Fix crash in remove_pagetable()
  Revert "x86/mm/gup: Switch GUP to the generic get_user_page_fast() implementation"
  x86/boot/e820: Remove a redundant self assignment
  x86/mm: Fix dump pagetables for 4 levels of page tables
  x86/mpx, selftests: Only check bounds-vs-shadow when we keep shadow
  x86/mpx: Correctly report do_mpx_bt_fault() failures to user-space
  Revert "x86/mm/numa: Remove numa_nodemask_from_meminfo()"
  x86/espfix: Add support for 5-level paging
  x86/kasan: Extend KASAN to support 5-level paging
  x86/mm: Add basic defines/helpers for CONFIG_X86_5LEVEL=y
  x86/paravirt: Add 5-level support to the paravirt code
  x86/mm: Define virtual memory map for 5-level paging
  x86/asm: Remove __VIRTUAL_MASK_SHIFT==47 assert
  x86/boot: Detect 5-level paging support
  x86/mm/numa: Remove numa_nodemask_from_meminfo()
  ...
This commit is contained in:
Linus Torvalds
2017-05-01 23:54:56 -07:00
parent aa2a4b6569 7138970383
commit d3b5d35290
93 changed files with 1851 additions and 717 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
arch/x86/include/asm/elf.h
View File

@@ -293,8 +293,23 @@ do { \
} \
} while (0)
/*
* True on X86_32 or when emulating IA32 on X86_64
*/
static inline int mmap_is_ia32(void)
{
return IS_ENABLED(CONFIG_X86_32) ||
(IS_ENABLED(CONFIG_COMPAT) &&
test_thread_flag(TIF_ADDR32));
}
extern unsigned long tasksize_32bit(void);
extern unsigned long tasksize_64bit(void);
extern unsigned long get_mmap_base(int is_legacy);
#ifdef CONFIG_X86_32
#define __STACK_RND_MASK(is32bit) (0x7ff)
#define STACK_RND_MASK (0x7ff)
#define ARCH_DLINFO ARCH_DLINFO_IA32
@@ -304,7 +319,8 @@ do { \
#else /* CONFIG_X86_32 */
/* 1GB for 64bit, 8MB for 32bit */
#define STACK_RND_MASK (test_thread_flag(TIF_ADDR32) ? 0x7ff : 0x3fffff)
#define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)
#define STACK_RND_MASK __STACK_RND_MASK(mmap_is_ia32())
#define ARCH_DLINFO \
do { \
@@ -348,16 +364,6 @@ extern int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp);
#define compat_arch_setup_additional_pages compat_arch_setup_additional_pages
/*
* True on X86_32 or when emulating IA32 on X86_64
*/
static inline int mmap_is_ia32(void)
{
return IS_ENABLED(CONFIG_X86_32) ||
(IS_ENABLED(CONFIG_COMPAT) &&
test_thread_flag(TIF_ADDR32));
}
/* Do not change the values. See get_align_mask() */
enum align_flags {
ALIGN_VA_32 = BIT(0),