diff options
| -rw-r--r-- | arch/x86/kernel/cpu/amd_64.c | 1 | ||||
| -rw-r--r-- | arch/x86/mm/pageattr.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/pat.c | 4 | ||||
| -rw-r--r-- | arch/x86/pci/i386.c | 4 |
4 files changed, 7 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/amd_64.c b/arch/x86/kernel/cpu/amd_64.c index bd182b7616e..7c36fb8a28d 100644 --- a/arch/x86/kernel/cpu/amd_64.c +++ b/arch/x86/kernel/cpu/amd_64.c @@ -200,6 +200,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) * benefit in doing so. */ if (!rdmsrl_safe(MSR_K8_TSEG_ADDR, &tseg)) { + printk(KERN_DEBUG "tseg: %010llx\n", tseg); if ((tseg>>PMD_SHIFT) < (max_low_pfn_mapped>>(PMD_SHIFT-PAGE_SHIFT)) || ((tseg>>PMD_SHIFT) < diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 0389cb8f6b1..fb6f2ab40dd 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -658,11 +658,11 @@ static int cpa_process_alias(struct cpa_data *cpa) struct cpa_data alias_cpa; int ret = 0; - if (cpa->pfn > max_pfn_mapped) + if (cpa->pfn >= max_pfn_mapped) return 0; #ifdef CONFIG_X86_64 - if (cpa->pfn > max_low_pfn_mapped && cpa->pfn < (1UL<<(32-PAGE_SHIFT))) + if (cpa->pfn >= max_low_pfn_mapped && cpa->pfn < (1UL<<(32-PAGE_SHIFT))) return 0; #endif /* diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 749766c3c5c..d4585077977 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -449,8 +449,8 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, if (retval < 0) return 0; - if (((pfn <= max_low_pfn_mapped) || - (pfn >= (1UL<<(32 - PAGE_SHIFT)) && pfn <= max_pfn_mapped)) && + if (((pfn < max_low_pfn_mapped) || + (pfn >= (1UL<<(32 - PAGE_SHIFT)) && pfn < max_pfn_mapped)) && ioremap_change_attr((unsigned long)__va(offset), size, flags) < 0) { free_memtype(offset, offset + size); printk(KERN_INFO diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 5281e343dd9..2aafb67dc5f 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -334,9 +334,9 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, flags = new_flags; } - if (((vma->vm_pgoff <= max_low_pfn_mapped) || + if (((vma->vm_pgoff < max_low_pfn_mapped) || (vma->vm_pgoff >= (1UL<<(32 - PAGE_SHIFT)) && - vma->vm_pgoff <= max_pfn_mapped)) && + vma->vm_pgoff < max_pfn_mapped)) && ioremap_change_attr((unsigned long)__va(addr), len, flags)) { free_memtype(addr, addr + len); return -EINVAL; |