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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 changes in this cycle were:

   - Enable full ASLR randomization for 32-bit programs (Hector
     Marco-Gisbert)

   - Add initial minimal INVPCI support, to flush global mappings (Andy
     Lutomirski)

   - Add KASAN enhancements (Andrey Ryabinin)

   - Fix mmiotrace for huge pages (Karol Herbst)

   - ... misc cleanups and small enhancements"

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/32: Enable full randomization on i386 and X86_32
  x86/mm/kmmio: Fix mmiotrace for hugepages
  x86/mm: Avoid premature success when changing page attributes
  x86/mm/ptdump: Remove paravirt_enabled()
  x86/mm: Fix INVPCID asm constraint
  x86/dmi: Switch dmi_remap() from ioremap() [uncached] to ioremap_cache()
  x86/mm: If INVPCID is available, use it to flush global mappings
  x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID
  x86/mm: Add INVPCID helpers
  x86/kasan: Write protect kasan zero shadow
  x86/kasan: Clear kasan_zero_page after TLB flush
  x86/mm/numa: Check for failures in numa_clear_kernel_node_hotplug()
  x86/mm/numa: Clean up numa_clear_kernel_node_hotplug()
  x86/mm: Make kmap_prot into a #define
  x86/mm/32: Set NX in __supported_pte_mask before enabling paging
  x86/mm: Streamline and restore probe_memory_block_size()
This commit is contained in:
Linus Torvalds
2016-03-15 10:45:39 -07:00
parent 9cf8d6360c 8b8addf891
commit 13c76ad872
15 changed files with 217 additions and 101 deletions
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16
arch/x86/kernel/cpu/common.c
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@@ -162,6 +162,22 @@ static int __init x86_mpx_setup(char *s)
}
__setup("nompx", x86_mpx_setup);
static int __init x86_noinvpcid_setup(char *s)
{
/* noinvpcid doesn't accept parameters */
if (s)
return -EINVAL;
/* do not emit a message if the feature is not present */
if (!boot_cpu_has(X86_FEATURE_INVPCID))
return 0;
setup_clear_cpu_cap(X86_FEATURE_INVPCID);
pr_info("noinvpcid: INVPCID feature disabled\n");
return 0;
}
early_param("noinvpcid", x86_noinvpcid_setup);
#ifdef CONFIG_X86_32
static int cachesize_override = -1;
static int disable_x86_serial_nr = 1;