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https://github.com/projectacrn/acrn-hypervisor.git
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c2468d2791
This patch adds a function elf_loader() to load elf image. It checks the elf header, get its 32/64 bit type, then calls the corresponding loading routines, which are empty, and will be realized later. Tracked-On: #6323 Signed-off-by: Zhou, Wu <wu.zhou@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <asm/guest/vm.h>
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#include <vboot.h>
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#include <errno.h>
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#include <logmsg.h>
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/**
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* @pre sw_module != NULL
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*/
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void load_sw_module(struct acrn_vm *vm, struct sw_module_info *sw_module)
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{
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if ((sw_module->size != 0) && (sw_module->load_addr != NULL)) {
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(void)copy_to_gpa(vm, sw_module->src_addr, (uint64_t)sw_module->load_addr, sw_module->size);
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}
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}
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/**
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* @pre vm != NULL
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*/
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int32_t prepare_os_image(struct acrn_vm *vm)
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{
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int32_t ret = -EINVAL;
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/* get primary vcpu */
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struct acrn_vcpu *vcpu = vcpu_from_vid(vm, BSP_CPU_ID);
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struct sw_module_info *acpi_info = &(vm->sw.acpi_info);
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switch (vm->sw.kernel_type) {
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#ifdef CONFIG_GUEST_KERNEL_BZIMAGE
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case KERNEL_BZIMAGE:
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ret = bzimage_loader(vm);
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break;
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#endif
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#ifdef CONFIG_GUEST_KERNEL_RAWIMAGE
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case KERNEL_RAWIMAGE:
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ret = rawimage_loader(vm);
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break;
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#endif
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#ifdef CONFIG_GUEST_KERNEL_ELF
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case KERNEL_ELF:
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ret = elf_loader(vm);
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break;
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#endif
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default:
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ret = -EINVAL;
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break;
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}
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if (ret == 0) {
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/* Copy Guest OS ACPI to its load location */
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load_sw_module(vm, acpi_info);
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/* Set VCPU entry point to kernel entry */
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vcpu_set_rip(vcpu, (uint64_t)vm->sw.kernel_info.kernel_entry_addr);
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pr_info("%s, VM %hu VCPU %hu Entry: 0x%016lx ", __func__, vm->vm_id, vcpu->vcpu_id,
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vm->sw.kernel_info.kernel_entry_addr);
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}
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return ret;
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}
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