Hi 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: http://wiki.xen.org/xenwiki/XenParavirtOps, search "efi" in the page. The example of config file for efi boot: kernel=vmlinuz-3.3.0-rc2+ root=xx ro console=tty0 ramdisk=initramfs-3.3.0-rc2+.img video=gfx-x.0 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. http://linuxfirmwarekit.org/download.php 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(-) Thanks Liang. -- 1.7.7.5 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
