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-rw-r--r--include/linux/efi.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 14813b59580..a5f359a7ad0 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -18,6 +18,7 @@
#include <linux/proc_fs.h>
#include <linux/rtc.h>
#include <linux/ioport.h>
+#include <linux/pfn.h>
#include <asm/page.h>
#include <asm/system.h>
@@ -394,4 +395,10 @@ struct efi_generic_dev_path {
u16 length;
} __attribute ((packed));
+static inline void memrange_efi_to_native(u64 *addr, u64 *npages)
+{
+ *npages = PFN_UP(*addr + (*npages<<EFI_PAGE_SHIFT)) - PFN_DOWN(*addr);
+ *addr &= PAGE_MASK;
+}
+
#endif /* _LINUX_EFI_H */