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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.

Jan Beulich (1):
EFI: add efi driver for Xen efi

Tang Liang (4):
EFI: Provide registration for efi_init.. etc efi public function
EFI: seperate get efi table info code to single function
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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