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    Subject[PATCH 4/9] efi.h: Add allocation types for boottime->allocate_pages()
    Date
    From: Matt Fleming <matt.fleming@linux.intel.com>

    Add the allocation types detailed in section 6.2 - "AllocatePages()"
    of the UEFI 2.3 specification. These definitions will be used by the
    x86 EFI boot stub which needs to allocate memory during boot.

    Cc: Matthew Garrett <mjg@redhat.com>
    Cc: "H. Peter Anvin" <hpa@linux.intel.com>
    Signed-off-by: Matt Fleming <matt.fleming@linux.intel.com>
    ---
    include/linux/efi.h | 8 ++++++++
    1 files changed, 8 insertions(+), 0 deletions(-)

    diff --git a/include/linux/efi.h b/include/linux/efi.h
    index d10a639..cd28c7a 100644
    --- a/include/linux/efi.h
    +++ b/include/linux/efi.h
    @@ -109,6 +109,14 @@ typedef struct {
    u32 imagesize;
    } efi_capsule_header_t;

    +/*
    + * Allocation types for calls to boottime->allocate_pages.
    + */
    +#define EFI_ALLOCATE_ANY_PAGES 0
    +#define EFI_ALLOCATE_MAX_ADDRESS 1
    +#define EFI_ALLOCATE_ADDRESS 2
    +#define EFI_MAX_ALLOCATE_TYPE 3
    +
    typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);

    /*
    --
    1.7.4.4


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