Hermit Kernel Files

🚀 Features

• (x86_64) Print FDT
• (newlib) Add support for riscv64
• (virtio-spec) Add vsock definitions
• (newlib) Add support for aarch64
• (xtask) Sanitize rustc for finding binutils
• (xtask) Sanitize rustup calls
• (xtask) Sanitize cargo for normal builds
• (xtask) Support relative paths
• (xtask) Add --artifact-dir option for builds
• (xtask) Allow starting the hypervisor using sudo
• (newlib) Remove sbrk
• Add strace feature
• Log jumping into application
• (env) Parse FDT bootargs on all platforms
• (env) Parse env=KEY=VALUE for env vars
• (uhyve) Don't override get_application_parameters
• UEFI MVP
• Add stable exit code message in non-Uhyve VMs
• (xtask) Set vcpu_count for Firecracker
• (xtask) Create xtask ci rs subcommand
• (xtask) Add xtask ci c subcommand
• (log) Make HERMIT_LOG_LEVEL_FILTER case-insensitive
• (panic) Resolve deadlock when panicking while printing
• Upgrade to Rust 2024
• (uhyve) Use absolute paths
• Weakly provide the sys_errno_location function for all errno access
• Add version note

🐛 Bug Fixes

• (pci) Remove FnOnce workaround
• (virtio) Remove unused PciError::BadCapPtr
• (virtio/pci) Remove PciCfgAlt
• (pci) Make BAR pages no-execute
• (virtio) Make config generation checking transport independent
• (net/virtio/pci) Remove commented out code
• (virtio-spec) Rustdoc::broken_intra_doc_links
• (net/virtio) Remove unused and wrong net command enums
• (virtio-spec) Make net::Config fields read-only
• (x86_64/physicalmem) Rename detect_from_limits to detect_from_uhyve
• (virtqueue/packed) Simplify DrvNotif::enable_specific
• (virtqueue/split) Set next_idx for driver notifications
• (virtqueue/packed) Fix EventSuppr bitfield operations
• (virtqueue/packed) Check range on RING_EVENT_FLAGS_DESC
• (virtqueue/packed) Use correct next_idx
• (virtqueue/packed) Set flags according to wrap count
• (virtqueue/split) Fix off-by-one error
• (pci) Remove unused enum DeviceHeader
• (pci) Remove unused mod constants
• (pci) Remove unused PciDevice methods
• (virtqueue/split) Remove dead code
• (virtqueue/packed) Zero-initialize descriptors
• (virtqueue/packed) Don't change flags when not making available
• (virtqueue/packed) Check for descriptor exhaustion
• (virtq/split) Return id with the correct index for the chain head
• (virtio-spec) Export vsock feature bits
• (virtq) Move fuse_entry_out to payload
• (net/virtio) Push the correct number of packets to the queue
• (xtask) Keep CARGO_HOME and RUSTUP_HOME
• (xtask) Set current dir for sanitized binaries
• (xtask) Move builtins target dir into main one
• (syscalls) Unused_imports
• (entropy) Unused_imports
• (recmutex) Clippy::new_without_default
• (recmutex) Clippy::not_unsafe_ptr_arg_deref
• (tasks) Clippy::not_unsafe_ptr_arg_deref
• (riscv64/virtualmem) Dead_code
• (xtask) Enable clippy for feature = "newlib"
• Boot application processors after initializing scheduler
• (fd) Clippy::too_long_first_doc_paragraph
• (x86_64) Downgrade log level of page unmap
• (x86_64/phys_mem) Don't panic on empty FDT memory map
• Remove explicit link section attributes
• (aarch64) Remove unused get_boot_info_address
• (entry) Only set boot info globals on first CPU core
• (riscv64) Validate entry signature
• (entry) Allow boot info null pointer
• (smp) Don't populate boot info pointer
• (x86_64/smp) Remove boot_info parameter
• (arch) Remove RAW_BOOT_INFO
• (arch) Make BOOT_INFO a OnceCell
• Make Virtq require Send
• (pci) Put PCI devices into a cell
• (pci) Put PCI drivers into a cell
• (x86_64) Put MMIO drivers into a cell
• (x86_64/vga) Put VGA screen into mutex
• (aarch64) Put serial port into mutex
• (aarch64) Put GIC into mutex
• (net) Make GEM driver Send
• (riscv64) Put MMIO drivers into a cell
• (riscv64) Put available HARTs into a cell
• (shell) Unreachable_code
• (shell) Unused_variables
• (xtask) Enable shell feature
• clippy::needless_lifetimes
• (aarch64/core_local) clippy::pointers_in_nomem_asm_block
• (shell) Move shell into async task
• (arch) Migrate to naked_asm in naked functions
• (riscv64) Remove manual align implementations
• (cfg) dead_code
• (x86_64/mem) Allow deallocating before kernel
• (x86_64/paging) Extract map_pages
• (x86_64/paging) print_page_tables
• (x86_64/paging) Rework disect
• (x86_64/paging) Add print_page_table_entries
• (virtqueue) Clippy::extra_unused_lifetimes
• (xtask) Build docs for each arch separately
• (x86_64) Make kernel_heap_end a valid virtual address
• (x86_64) Log interrupt even without handler
• (x86_64) Check for null pointer in core_scheduler
• (main) Enable interrupts after initializing scheduler
• (apic) Disable PIT interrupt
• (x86_64) Use unaligned write for TLS pointer
• (apic) Fix width of MP config table entry type
• (xtask) Remove --verbose from Uhyve call
• (virtqueue) clippy::unnecessary_map_or
• (pci) clippy::question_mark
• (syscalls) Use c_char instead of u8
• (socket) Remove upstream-resolved allow
• (virtio-net) Use the correct number of buffers for merging
• (syscalls) Use ptr::byte_add
• (syscalls) Remove useless pointer casts
• Enable clippy::string_to_string
• Enable clippy::ref_as_ptr
• Enable clippy::ptr_as_ptr
• Enable clippy::ptr_cast_constness
• Enable clippy::borrow_as_ptr
• Enable clippy::cast_lossless
• Enable clippy::if_not_else
• Enable clippy::ignored_unit_patterns
• Enable clippy::manual_let_else
• Enable clippy::semicolon_if_nothing_returned
• Enable clippy::ref_option
• Enable clippy::explicit_deref_methods
• Enable clippy::default_trait_access
• Enable clippy::manual_assert
• Enable clippy::inconsistent_struct_constructor
• Enable clippy::match_wildcard_for_single_variants
• Enable clippy::unreadable_literal
• Enable clippy::separated_literal_suffix
• Enable clippy::decimal_literal_representation
• (dns) clippy::len_zero
• (dns) clippy::useless_conversion
• (xtask) Run clippy on feature = "dns"
• (xtask) Don't test feature = "shell" on unsupported arches
• (virtqueue) Make BufferElem::{len,capacity} return u32
• (uhyve) Fix improper unlink string handling
• (common-os) clippy::unreadable-literal
• (common-os) clippy::fn_to_numeric_cast
• (common-os) clippy::unnecessary_cast
• (common-os) clippy::result_unit_err
• (common-os) Expect dead_code
• (aarch64) Fix compilation with feature = "common-os"
• (riscv64) Fix compilation with feature = "common-os"
• (xtask) Run clippy on feature = "common-os"
• (x86_64) Use correct MSR for read{fs,gs}
• Allow building with all features
• (interrupts) unused_imports
• (scheduler) dead_code
• (rtl8139) clippy::if-not-else
• clippy::semicolon-if-nothing-returned
• (udp) clippy::ignored-unit-patterns
• (xtask) Clippy all features
• clippy::literal_string_with_formatting_args
• clippy::precedence
• (tests) static_mut_refs
• (tests) stable_features
• (tests) Remove unused value_fence
• (tests) Don't reexport in common
• (tests) Move parse to avoid dead_code
• (tests) unsafe-op-in-unsafe-fn
• (tests) Allow dead_code on test_case_runner
• (tests) Literals
• (tests/basic_mem) Clippy
• (tests) clippy::uninit_vec
• (tests/thread) Pointer casting
• (tests) clippy::result_unit_err
• (tests) Remove explicit QEMU debug exit
• (xtask) Run clippy on all targets
• (tests) Clean up comments
• Use #[unsafe(no_mangle)]
• Mark extern blocks as unsafe
• (macros) tail_expr_drop_order
• (xtask) Use canonical cargo_home location
• (xtask) Assume exe exists in cargo_home
• (xtask) Add support testing for C-based HTTP servers
• (xtask) Don't assume exe exists in cargo_home
• (paging) Support huge pages in debug function

💼 Other

• Turn cmd from a tuple into a struct
• Separate response headers and payload
• Don't assume uninitialized objects to be initalized
• Don't expose uninit rsp to the fuse module
• Use DeviceAlloc for virtq allocations
• TransferTokens should always have a BufferToken
• Move common logic for making descriptor available into a function
• Remove unnecessary memory barriers
• Move common lines in conditional outside
• Move ctrl_desc to TransferToken
• Merge Buffer variants
• Start MemDescrId from 0
• Delay MemDescrId assignment until push
• Handle id exhaustion
• Don't expose TransferTokens to the drivers
• Use the actual type for ctrl_descs instead of MemDescr
• Don't modify flags for skipped descriptors
• Improve error handling
• Correctly parse irq-flags from dts
• (fs) Correct uhyve mount message
• (deps) Upgrade zerocopy to 0.8, fuse-abi to 0.2, and virtio-spec to 0.2
• Store only the most preferred capability of a type
• (qemu) Simplify memory calculation
• Close connection if data isn't available
• (deps) Update Cargo.lock
• (virtio-fs) Remove unnecessary to_string()
• (vscode) Don't check all architectures
• Don't panic on initial unmap if page is not mapped
• (deps) Update Cargo.lock
• (deps) Remove x86
• Use the serial buffer hypercall instead of the byte-wise one
• (deps) Update hermit-entry to 0.10.2
• (deps) Don't specify minor version of bitflags crate
• (deps) Update Cargo.lock

🚜 Refactor

• (virtio/pci) Remove offset, length fields
• (virtio/pci) Inline Origin into PciCap
• (virtio/pci) Rename PciCap::cap_struct to PciCap::cap
• (virtio/pci) Remove cfg_type, id from PciCap
• (virtio/pci) Migrate extra cap data reading to virtio-spec
• (pci) Implement set_irq using EndpointHeader::update_interrupt
• (virtio) Move notif_data into virtio-spec
• (virtio) Remove memory newtypes
• (virtio) Use generic PCI memory_map_bar impl
• (net/virtio) Move transport modules into virtio module
• (net/virtio) Migrate Status to virtio-spec
• (net/virtio) Migrate NetDevCfgRaw to virtio-spec
• Rename virtio-spec dependency to virtio
• (virtio-spec) Move fs module into separate file
• (fs/virtio) Migrate FsDevCfgRaw to virtio-spec
• (x86_64) Move Fdt creation into get_fdt
• (x86_64) Extract TOTAL_MEMORY access
• (x86_64) Extract PHYSICAL_FREE_LIST lock
• (virtqueue) Extract NotificationData creation
• (virtqueue/packed) Add RingIdx
• (virtqueue/packed) Migrate from zerocopy::little_endian to virtio-spec
• (virtqueue) Migrate to DescrFlags to virtio-spec
• (virtqueue) Migrate Descriptor to virtio-spec
• (virtqueue/split) Migrate UsedElem to virtio-spec
• (virtqueue/packed) Migrate EventSuppr to virtio-spec
• (virtqueue) Migrate Descriptor to virtio-spec
• (virtqueue/split) Make accesses non-volatile
• (virtqueue/split) Rename GenericRing::index to idx
• (virtqueue/split) Migrate to virtq::Avail and virtq::Used
• (virtqueue/packed) Move avail and used flag handling to the ring
• Move fd::IoError to io::Error
• Add and use io::Result type
• (fuse) Migrate to fuse-abi crate
• (virtio) Adapt DeviceConfigSpace::read_config_with
• (virtio-spec) Import endian-num types from crate root
• (virtio-spec) Move NotificationData into separate module
• (virtio-spec) Feature-gate transport modules
• (virtq) Use safe types for virtq buffers
• (virtq) Represent avail and used buffers as distinct types
• (virtq) Eliminate RefCell and Rc usage
• Migrate to virtio-spec release
• (virtio-net) Remove unused is_multi field
• (virtq) Reduce code duplication
• (xtask) Move sanitized cargo to crate root
• (xtask) Extract sanitize function
• (xtask) Extract fn project_root
• (uhyve) Unify uhyve_send
• (virtq) Remove intermediate virtqueue channels
• (arch) Move boot info into env
• (riscv64) Avoid redundant HARTS_AVAILABLE access
• Remove arch-specific get_fdt
• (mm) Memory check
• (x86_64/physicalmem) Inline find_all_nodes
• (x86_64/physicalmem) Simplify TOTAL_MEMORY handling
• (x86_64/acpi) Use methods for reading pointers
• (apic) Merge ioapic_inton and ioapic_intoff
• (apic) Simplify I/O APIC config
• (xtask) Make --smp hypervisor independent
• (xtask) Determine small in Rs
• (xtask) Extract arch in Rs
• (xtask) impl Display for Arch
• (pci) Remove explicit type
• Move lint config into Cargo.toml
• (console) Extract Console::write
• (stdio) Use Console::write
• (console) Extract Console::read
• (console) Centralize state
• (xtask) Extract clippy base
• (stdio) Migrate to uhyve-interface
• (acpi) Migrate from x86 crate to x86_64 crate
• (apic) Migrate MSR access to x86_64 crate
• (apic) Migrate CR3 access to x86_64 crate
• (apic) Vendor MSR constants
• (gdt) Migrate CR3 access to x86_64 crate
• (kernel) Migrate CR0 and CR4 access to x86_64 crate
• (pci) Migrate to x86_64 crate
• (pic) Migrate to x86_64 crate
• (pit) Migrate to x86_64 crate
• (processor) Migrate CR0, CR4, and XCR0 access to x86_64 crate
• (processor) Migrate FS and GS access to x86_64 crate
• (processor) Migrate halt() to x86_64 crate
• (processor) Migrate EFER setup to x86_64 crate
• (processor) Migrate CPUID access to raw_cpuid crate
• (processor) Decrease unsafe scope
• (processor) Migrate MSR access to x86_64 crate
• (processor) Use specialized functions for STAR, LSTAR, and SFMASK access
• (processor) Use safe function for STAR access
• (systemtime) Migrate port access to x86_64 crate
• (vga) Migrate port access to x86_64 crate
• (mm) Migrate CR3 access to x86_64 crate
• (rtl8139) Migrate port access to x86_64 crate
• (uhyve) Migrate port access to x86_64 crate

📚 Documentation

• (virtio-spec) Add missing doc aliases
• (virtio-spec) pvirtq module docs typo

⚡ Performance

• (arch) Relax TOTAL_MEMORY accesses
• Make network buffers a power of two

🎨 Styling

• (virtio-spec) Format code in doc comments
• (x86_64/paging) Stray comma
• (gem) Rename RecieveStatus to ReceiveStatus
• Fix typos
• Add typos.toml
• (xtask) Add semicolons
• Format hex literals as lowercase
• Dont use core as ::core outside of macros
• Use Rust 2024 style edition
• (ci) Format

🧪 Testing

• Add get_application_parameters test

⚙️ Miscellaneous Tasks

• (Cargo.toml) Sort features
• Migrate to maintained rustsec/audit-check
• Add typos job
• Remove caching