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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-18 10:37:43 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-18 10:37:43 +0100 |
| commit | 04dfcfcb54b073133bcca2c8f25b55e904558931 (patch) | |
| tree | 123d13f9e242751f629924e92fcb297dc669d767 /arch/x86/kernel/efi.c | |
| parent | 0bd5c4f7c874cf48ff7904dcf8a59988c8fea0e8 (diff) | |
| parent | ee568b25ee9e160b32d1aef73d8b2ee9c05d34db (diff) | |
| download | op-kernel-dev-04dfcfcb54b073133bcca2c8f25b55e904558931.zip op-kernel-dev-04dfcfcb54b073133bcca2c8f25b55e904558931.tar.gz | |
Merge branch 'linus' into core/iommu
Diffstat (limited to 'arch/x86/kernel/efi.c')
| -rw-r--r-- | arch/x86/kernel/efi.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 1119d24..eb1ef3b 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -467,7 +467,7 @@ void __init efi_enter_virtual_mode(void) efi_memory_desc_t *md; efi_status_t status; unsigned long size; - u64 end, systab, addr, npages; + u64 end, systab, addr, npages, end_pfn; void *p, *va; efi.systab = NULL; @@ -479,7 +479,10 @@ void __init efi_enter_virtual_mode(void) size = md->num_pages << EFI_PAGE_SHIFT; end = md->phys_addr + size; - if (PFN_UP(end) <= max_low_pfn_mapped) + end_pfn = PFN_UP(end); + if (end_pfn <= max_low_pfn_mapped + || (end_pfn > (1UL << (32 - PAGE_SHIFT)) + && end_pfn <= max_pfn_mapped)) va = __va(md->phys_addr); else va = efi_ioremap(md->phys_addr, size); |
