Crate x86_64

Expand description

x86 architecture support.

Re-exports

CpuIdCall
The wrapper for CPUID call functions.
LowMemoryLayout 🔒
PciRootOSC 🔒
SetupData
A single entry to be inserted in the bootparam setup_data linked list.
X8664arch
setup_data_hdr 🔒

add_e820_entry 🔒
Add an e820 region to the e820 map. Returns Ok(()) if successful, or an error if there is no space left in the map.
arch_memory_regions
Returns a Vec of the valid memory addresses. These should be used to configure the GuestMemory structure for the platform. For x86_64 all addresses are valid from the start of the kernel except a carve out at the end of 32bit address space.
bios_start 🔒
The x86 reset vector for i386+ and x86_64 puts the processor into an “unreal mode” where it can access the last 1 MB of the 32-bit address space in 16-bit mode, and starts the instruction pointer at the effective physical address 0xFFFF_FFF0.
check_host_hybrid_support
Check if host supports hybrid CPU feature. The check include: 1. Check if CPUID.1AH exists. CPUID.1AH is hybrid information enumeration leaf. 2. Check if CPUID.07H.00H:EDX[bit 15] sets. This bit means the processor is identified as a hybrid part. 3. Check if CPUID.1AH:EAX sets. The hybrid core type is set in EAX.
configure_system 🔒
get_cpu_manufacturer
identity_map_addr_start 🔒
init_low_memory_layout
phys_addr 🔒
read_pci_mmio_before_32bit
read_pcie_cfg_mmio
setup_data_rng_seed 🔒
Generate a SETUP_RNG_SEED SetupData with random seed data.
tss_addr_end 🔒
tss_addr_start 🔒
write_setup_data 🔒
Write setup_data entries in guest memory and link them together with the next field.