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    Subject[PATCH 0/5] xen: patches for supporting efi

    The following patches introduce and implement efi support in dom0.
    The efi memory is owned by Xen and efi run-time service can not be called
    directly in dom0, so a new efi driver is needed by Xen efi.
    These patches are based on v3.3.0-rc2+.

    Descriptions for these patches:

    The efi public functions are changed to function pointers in efi_init_funcs
    struct. They act as efi generic functions as default.
    As a benefit from this change, we can register xen efi init func.

    In order to add xen efi video support, it is required to add xen-efi's
    new video type(XEN_VGATYPE_EFI_LFB) case handler in the function xen_init_vga
    and set the video type to VIDEO_TYPE_EFI to enable efi video mode.

    I have tested this patch on Dell Opti 790.

    Xen efi boot support is added by Jan Beulich, more detail information can be
    gotten from the url:, search "efi" in the page.

    The example of config file for efi boot:
    kernel=vmlinuz-3.3.0-rc2+ root=xx ro console=tty0

    The detailed test which i have done:
    First, Check efifb driver work well or not and check the kernel messesge ro
    see the follow info:
    [ 0.576705] efifb: probing for efifb
    [ 0.577357] efifb: framebuffer at 0xd0000000, mapped to 0xffffc90005800000, using 3752k, total 65472k
    [ 0.577360] efifb: mode is 800x600x32, linelength=3200, pages=1
    [ 0.577362] efifb: scrolling: redraw
    [ 0.577364] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0

    Second, Check efi systab and variable is work well or not.
    cat the information in /sys/firmware/efi to check the efi systab and variable
    is right or not.

    Third, Run Linux firmware testing tools which is downloaded from this Url.

    Tang Liang (4):
    EFI: Provide registration for efi_init.. etc efi public function
    EFI: add efi driver for Xen efi
    Xen efi: Add xen efi enabled detect
    Xen vga: add the xen efi video mode support

    arch/x86/platform/efi/Makefile | 2 +-
    arch/x86/platform/efi/efi-xen.c | 460 ++++++++++++++++++++++++++++++++++++++
    arch/x86/platform/efi/efi.c | 63 +++++-
    arch/x86/xen/enlighten.c | 3 +
    arch/x86/xen/vga.c | 7 +
    include/linux/efi.h | 14 +-
    include/xen/interface/platform.h | 122 ++++++++++
    include/xen/interface/xen.h | 1 +
    8 files changed, 665 insertions(+), 7 deletions(-)


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