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https://github.com/projectacrn/acrn-hypervisor.git
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b240450064
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>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef UEFI_H
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#define UEFI_H
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typedef struct {
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uint16_t limit;
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uint64_t *base;
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} __attribute__((packed)) dt_addr_t;
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struct efi_ctx {
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uint64_t rip;
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void *rsdp;
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dt_addr_t gdt;
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dt_addr_t idt;
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uint16_t tr_sel;
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uint16_t ldt_sel;
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uint64_t cr0;
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uint64_t cr3;
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uint64_t cr4;
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uint64_t rflags;
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uint16_t cs_sel;
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uint32_t cs_ar;
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uint16_t es_sel;
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uint16_t ss_sel;
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uint16_t ds_sel;
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uint16_t fs_sel;
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uint16_t gs_sel;
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uint64_t efer;
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uint64_t rax;
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uint64_t rbx;
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uint64_t rcx;
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uint64_t rdx;
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uint64_t rdi;
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uint64_t rsi;
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uint64_t rsp;
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uint64_t rbp;
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uint64_t r8;
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uint64_t r9;
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uint64_t r10;
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uint64_t r11;
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uint64_t r12;
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uint64_t r13;
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uint64_t r14;
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uint64_t r15;
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}__attribute__((packed));
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void *get_rsdp_from_uefi(void);
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#endif /* UEFI_H*/
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