diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-05-13 13:32:54 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-05-13 13:32:54 +0100 |
| commit | dc2af52c0d6d00fd530e4a5e300834cdb1bb1c1c (patch) | |
| tree | 4573b99fb11e5b93bd011045039b370ddafe45e6 /arch/x86/xen/mmu.c | |
| parent | f1992dde7fef6713a469a5a142b86812b8a47f9e (diff) | |
| parent | 36be50515fe2aef61533b516fa2576a2c7fe7664 (diff) | |
Merge tag 'v3.4-rc7' into for-3.5
Linux 3.4-rc7
Conflicts):
drivers/base/regmap/regmap.c (overlap with bug fixes)
sound/soc/blackfin/bf5xx-ssm2602.c (overlap with bug fixes)
Diffstat (limited to 'arch/x86/xen/mmu.c')
| -rw-r--r-- | arch/x86/xen/mmu.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index b8e279479a6b..69f5857660ac 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -353,8 +353,13 @@ static pteval_t pte_mfn_to_pfn(pteval_t val) { if (val & _PAGE_PRESENT) { unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT; + unsigned long pfn = mfn_to_pfn(mfn); + pteval_t flags = val & PTE_FLAGS_MASK; - val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags; + if (unlikely(pfn == ~0)) + val = flags & ~_PAGE_PRESENT; + else + val = ((pteval_t)pfn << PAGE_SHIFT) | flags; } return val; |