Module dbs_boot::layout

Magic addresses externally used to lay out x86_64 VMs.

Structs

• GUEST_MEM_END
  Upper bound of guest memory.
• GUEST_PHYS_END
  Maximum guest physical address supported.

Constants

• BOOT_GDT_ADDRESS
  Address of Global Descriptor Table (GDT)
• BOOT_GDT_MAX
  Number of initial GDT entries.
• BOOT_GDT_OFFSET
  Magic addresses externally used to lay out x86_64 VMs. Global Descriptor Table Offset
• BOOT_IDT_ADDRESS
  Address of Interrupt Descriptor Table (IDT)
• BOOT_IDT_OFFSET
  Interrupt Descriptor Table Offset
• BOOT_STACK_POINTER
  Initial stack for the boot CPU.
• CMDLINE_MAX_SIZE
  Kernel command line start address maximum size.
• CMDLINE_START
  Kernel command line start address.
• DB_BOOT_PARAM_MAX_SIZE
  Kernel dragonball boot parameters length maximum size.
• DB_BOOT_PARAM_START
  Kernel dragonball boot parameters start address.
• EBDA_START
  Where BIOS/VGA magic would live on a real PC.
• GUEST_MEM_LOW_SIZE
  Size of memory below MMIO hole.
• GUEST_MEM_START
  Lower bound of guest memory.
• HIMEM_START
  Start of the high memory.
• IRQ_BASE
  First usable IRQ ID for virtio device interrupts on x86_64.
• IRQ_MAX
  Last usable IRQ ID for virtio device interrupts on x86_64.
• KVM_TSS_ADDRESS
  Address for the TSS setup.
• MMIO_LOW_END
  End address (inclusive) of the lower MMIO window.
• MMIO_LOW_START
  Start address of the lower MMIO window.
• PDE_START
  Address of page table level 2 page
• PDPTE_START
  Address of page table level 3 page
• PML4_START
  Address of page table level 4 page
• ZERO_PAGE_START
  The ‘zero page’, a.k.a linux kernel bootparams.