1 /*
2 * Copyright (C) 2018-2022 Intel Corporation.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <asm/guest/vm.h>
8 #include <vboot.h>
9 #include <errno.h>
10 #include <logmsg.h>
11
12 /**
13 * @pre sw_module != NULL
14 */
load_sw_module(struct acrn_vm * vm,struct sw_module_info * sw_module)15 void load_sw_module(struct acrn_vm *vm, struct sw_module_info *sw_module)
16 {
17 if ((sw_module->size != 0) && (sw_module->load_addr != NULL)) {
18 (void)copy_to_gpa(vm, sw_module->src_addr, (uint64_t)sw_module->load_addr, sw_module->size);
19 }
20 }
21
22 /**
23 * @pre vm != NULL
24 */
prepare_os_image(struct acrn_vm * vm)25 int32_t prepare_os_image(struct acrn_vm *vm)
26 {
27 int32_t ret = -EINVAL;
28 /* get primary vcpu */
29 struct acrn_vcpu *vcpu = vcpu_from_vid(vm, BSP_CPU_ID);
30 struct sw_module_info *acpi_info = &(vm->sw.acpi_info);
31
32 switch (vm->sw.kernel_type) {
33 #ifdef CONFIG_GUEST_KERNEL_BZIMAGE
34 case KERNEL_BZIMAGE:
35 ret = bzimage_loader(vm);
36 break;
37 #endif
38 #ifdef CONFIG_GUEST_KERNEL_RAWIMAGE
39 case KERNEL_RAWIMAGE:
40 ret = rawimage_loader(vm);
41 break;
42 #endif
43 #ifdef CONFIG_GUEST_KERNEL_ELF
44 case KERNEL_ELF:
45 ret = elf_loader(vm);
46 break;
47 #endif
48 default:
49 ret = -EINVAL;
50 break;
51 }
52
53 if (ret == 0) {
54 /* Copy Guest OS ACPI to its load location */
55 load_sw_module(vm, acpi_info);
56 /* Set VCPU entry point to kernel entry */
57 vcpu_set_rip(vcpu, (uint64_t)vm->sw.kernel_info.kernel_entry_addr);
58 pr_info("%s, VM %hu VCPU %hu Entry: 0x%016lx ", __func__, vm->vm_id, vcpu->vcpu_id,
59 vm->sw.kernel_info.kernel_entry_addr);
60 }
61
62 return ret;
63 }
64