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UEFI: change the acrn boot flow on uefi platform

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With current code, the acrn.efi is inserted between
cl bootloader.efi and bzImage.efi that destroyed the chain
relationship of cl bootloader and cl bzImage.efi.
And the following is current boot flow:
UEFI -> cl bootloader.efi -> acrn.efi -> bzImage.efi

The purpose of this patch is resume above chain relationship,
and make uefi vm return to efi stub context once launched,
then continue to call the UEFI API(LoadImage/StartImage) to launch
cl bootloader or other bootloaders. So the boot flow will
change to be as below:
UEFI -> acrn.efi -> cl bootloader.efi -> bzImage.efi

After applying this patch, the code related to loading
bzImage.efi and getting pe_entry is unnecessary due to
the bzImage.efi will not be launched by acrn.efi directly,
so it is removed.

Signed-off-by: Zheng, Gen <gen.zheng@intel.com>
This commit is contained in:
Zheng, Gen
2018-03-29 10:40:11 +08:00
committed by Jack Ren
parent 1f3acb3dd9
commit b240450064
7 changed files with 177 additions and 166 deletions
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1
hypervisor/bsp/uefi/efi/Makefile
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@@ -36,6 +36,7 @@ HV_FILE:=acrn
EFI_OBJDIR:=$(HV_OBJDIR)/bsp/uefi/efi
C_SRCS = boot.c pe.c malloc.c
ACRN_OBJS := $(patsubst %.c,$(EFI_OBJDIR)/%.o,$(C_SRCS))
INCLUDE_PATH += ../include/bsp/
OBJCOPY=objcopy