amd64

type BootOptions struct {
	// Cmdline is the kernel command line (without trailing NUL).
	Cmdline string
	// LoadAddr explicitly sets the payload load GPA. If zero, a default is
	// chosen using the kernel's preferred address and alignment.
	LoadAddr uint64
	// Initrd holds the initramfs image to copy into guest RAM.
	Initrd []byte
	// InitrdGPA overrides where the initramfs is copied in guest RAM. If zero,
	// a location is chosen automatically.
	InitrdGPA uint64
	// ZeroPageGPA is where the 4 KiB boot_params ("zero page") will be written.
	// Default: 0x00090000.
	ZeroPageGPA uint64
	// CmdlineGPA is where the NUL-terminated command line will be placed.
	// Default: ZeroPageGPA + 0x1000.
	CmdlineGPA uint64
	// StackTopGPA sets the initial RSP. If zero, it defaults near the top of
	// guest RAM (RAM end - 4 KiB) aligned down to 16 bytes.
	StackTopGPA uint64
	// PagingBase is the GPA used as scratch for the identity-mapped paging
	// structures. Default: 0x00020000.
	PagingBase uint64
	// AddressSpaceGiB controls how much memory (in GiB) is identity mapped by
	// SetupLongMode. Default: 4 GiB.
	AddressSpaceGiB int
	// E820 overrides the BIOS memory map. If empty, a single RAM entry covering
	// the entire allocated memory region is used.
	E820 []E820Entry
}

type BootPlan struct {
	LoadAddr        uint64
	EntryGPA        uint64
	ZeroPageGPA     uint64
	CmdlineGPA      uint64
	StackTopGPA     uint64
	PagingBase      uint64
	AddressSpaceGiB int
}

type E820Entry struct {
	Addr uint64
	Size uint64
	Type uint32
}

type KernelImage struct {

	// bzImage-specific fields.
	Data          []byte
	Header        SetupHeader
	HeaderBytes   []byte
	PayloadOffset int
	// contains filtered or unexported fields
}

type SetupHeader struct {
	ProtocolVersion     uint16
	SetupSectors        uint8
	LoadFlags           uint8
	Code32Start         uint32
	RamdiskImage        uint32
	RamdiskSize         uint32
	HeapEndPtr          uint16
	CmdLinePtr          uint32
	InitrdAddrMax       uint32
	KernelAlignment     uint32
	RelocatableKernel   uint8
	MinAlignment        uint8
	XLoadFlags          uint16
	CmdlineSize         uint32
	HardwareSubarch     uint32
	HardwareSubarchData uint64
	PayloadOffset       uint32
	PayloadLength       uint32
	SetupData           uint64
	PrefAddress         uint64
	InitSize            uint32
	HandoverOffset      uint32
	KernelInfoOffset    uint32
}

type StackFrame struct {
	Index    int
	PhysAddr uint64
	PC       uint64
	Symbol   string
	Offset   uint64
}