acrn-hypervisor/hypervisor/common/vm_load.c

64 lines
1.4 KiB
C

/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <asm/guest/vm.h>
#include <vboot.h>
#include <errno.h>
#include <logmsg.h>
/**
* @pre sw_module != NULL
*/
void load_sw_module(struct acrn_vm *vm, struct sw_module_info *sw_module)
{
if ((sw_module->size != 0) && (sw_module->load_addr != NULL)) {
(void)copy_to_gpa(vm, sw_module->src_addr, (uint64_t)sw_module->load_addr, sw_module->size);
}
}
/**
* @pre vm != NULL
*/
int32_t prepare_os_image(struct acrn_vm *vm)
{
int32_t ret = -EINVAL;
/* get primary vcpu */
struct acrn_vcpu *vcpu = vcpu_from_vid(vm, BSP_CPU_ID);
struct sw_module_info *acpi_info = &(vm->sw.acpi_info);
switch (vm->sw.kernel_type) {
#ifdef CONFIG_GUEST_KERNEL_BZIMAGE
case KERNEL_BZIMAGE:
ret = bzimage_loader(vm);
break;
#endif
#ifdef CONFIG_GUEST_KERNEL_RAWIMAGE
case KERNEL_RAWIMAGE:
ret = rawimage_loader(vm);
break;
#endif
#ifdef CONFIG_GUEST_KERNEL_ELF
case KERNEL_ELF:
ret = elf_loader(vm);
break;
#endif
default:
ret = -EINVAL;
break;
}
if (ret == 0) {
/* Copy Guest OS ACPI to its load location */
load_sw_module(vm, acpi_info);
/* Set VCPU entry point to kernel entry */
vcpu_set_rip(vcpu, (uint64_t)vm->sw.kernel_info.kernel_entry_addr);
pr_info("%s, VM %hu VCPU %hu Entry: 0x%016lx ", __func__, vm->vm_id, vcpu->vcpu_id,
vm->sw.kernel_info.kernel_entry_addr);
}
return ret;
}