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author | Ingo Molnar <mingo@elte.hu> | 2009-03-18 05:37:43 -0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-03-18 05:37:43 -0400 |
commit | 04dfcfcb54b073133bcca2c8f25b55e904558931 (patch) | |
tree | 123d13f9e242751f629924e92fcb297dc669d767 /arch/x86/mm/pageattr.c | |
parent | 0bd5c4f7c874cf48ff7904dcf8a59988c8fea0e8 (diff) | |
parent | ee568b25ee9e160b32d1aef73d8b2ee9c05d34db (diff) |
Merge branch 'linus' into core/iommu
Diffstat (limited to 'arch/x86/mm/pageattr.c')
-rw-r--r-- | arch/x86/mm/pageattr.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 7be47d1a97e4..7233bd7e357b 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c | |||
@@ -515,6 +515,17 @@ static int split_large_page(pte_t *kpte, unsigned long address) | |||
515 | * primary protection behavior: | 515 | * primary protection behavior: |
516 | */ | 516 | */ |
517 | __set_pmd_pte(kpte, address, mk_pte(base, __pgprot(_KERNPG_TABLE))); | 517 | __set_pmd_pte(kpte, address, mk_pte(base, __pgprot(_KERNPG_TABLE))); |
518 | |||
519 | /* | ||
520 | * Intel Atom errata AAH41 workaround. | ||
521 | * | ||
522 | * The real fix should be in hw or in a microcode update, but | ||
523 | * we also probabilistically try to reduce the window of having | ||
524 | * a large TLB mixed with 4K TLBs while instruction fetches are | ||
525 | * going on. | ||
526 | */ | ||
527 | __flush_tlb_all(); | ||
528 | |||
518 | base = NULL; | 529 | base = NULL; |
519 | 530 | ||
520 | out_unlock: | 531 | out_unlock: |