RVVM Files

NOTE: RVVM nightly builds should be preferred, this release is for historical reference.

Please see https://github.com/LekKit/RVVM/wiki/Running

New features

• Networking is now stable and enabled by default
• Allow port forwarding to the guest with -portfwd 127.0.0.1:8080=80
• Support relative mouse movement, grabbing the host mouse
• Support international keyboard layouts (I.e. keys specific to Japanese, Korean, German etc keyboards)
• Optional SDL2 GUI backend
• Support Big-endian hosts (MIPS64, PowerPC64) properly
• SiFive GPIO support
• MTD physmap firmware chip
• Dallas DS1742 Real-time clock
• Support (multiple) PTY or UNIX sockets as UART character device with -serial [file], silent UART with -serial null;
• Support explicitly choosing NVMe or ATA with -ata [img] or -nvme [img]
• Support using host block devices (/dev/sda, /dev/mmcblk) as RVVM drives
• Faster threaded IO implementation
• Faster UART console (Especially on Windows, Serenity)
• Optimized Win32 display rendering
• Slightly better RVJIT x86 register allocation
• RVJIT significantly optimizes memory accesses with userland CPU emulation (To the point of near-native perf of user emulation)
• Rework CMake build system to build shared librvvm properly
• Colorful logger
• Libretro port
• [WIP] Began work on a Linux userspace binary emulator. Many riscv64 glibc binaries work, but threading and JIT caches are flaky.

RVVM API Improvements:

• Character device API
• GPIO API
• Provide a separate mapping property for direct MMIO regions
• Omit PC increment for traps in Userland API
• Support non-canonical framebuffer stride
• Return rvvm_mmio_handle_t upon attaching most de-attachable MMIO devices
• Implement RVVM_OPT_MEM_BASE, RVVM_OPT_MEM_SIZE to query RAM configuration of the machine.
• Implement RVVM_OPT_HART_COUNT to query amount of cores
• Java JNI bindings

Fixes, compatibility

• Fix crashes when explicitly unloading librvvm shared library (#97)
• Fix NVMe deadlock reporting when host IO is slow (#99)
• More bullerproof RVJIT cache allocation (#98)
• Implement RT8169 93C56 EEPROM to fix FreeBSD & Haiku OS networking (#118)
• Fix rare keypress loss (#126)
• Fix pending PLIC interrupts not being re-delivered upon writes to prio/enable/threshold
• Fix 0-byte UDP payloads with tap_user backend
• Fix TCP connection tuple lookup
• Improve TCP stability immensely with tap_user backend
• Fix networking on NetBSD
• Implement proper FMA emulation without dual rounding in FPU, advertise FENV_ACCESS
• Fix endianness issues in FPU
• Fix several VMA operations on Win32 hosts
• Support both UTF8 and system locale paths on Win32 hosts
• Use pthread_cond_timedwait_relative_np() on MacOS to fix possible hang upon wall clock change
• Fix MMIO op size validation
• Fix PCI attach failure handling with all the devices
• Fix non-working I2C ocores with FreeBSD guest
• Advertise zicsr, zifencei extensions in CPU DT
• Fix KSM & THP erroneously not being enabled
• Use .dylib extension for MacOS shared lib target
• Fix OpenBSD CMake build due to type naming collisions
• Fix CMake build on arches without a JIT backend
• Fix Serenity build warnings due to macro naming collisions
• Myriad of small fixes

New Contributors

• @mishrasamiksha made their first contribution in https://github.com/LekKit/RVVM/pull/111
• @singodiyashubham87 made their first contribution in https://github.com/LekKit/RVVM/pull/116
• @fish4terrisa-MSDSM made their first contribution in https://github.com/LekKit/RVVM/pull/120
• @OscarL made their first contribution in https://github.com/LekKit/RVVM/pull/129

Full Changelog: https://github.com/LekKit/RVVM/compare/v0.5...v0.6