visoreXtensible Versatile hypervISOR

Xvisor v0.2.7 Date: Sun, 8 Nov 2015 17:08:17 +0530  |  Posted by: Anup Patel

In this release, we have lot of new features, drivers, emulators, and improvements.

New Features:

• Simple light-weight serial port driver framework
• Boot-time initrd block device creation from device tree
• Support multiple banks of host RAM
• More Linux-like DMA mapping APIs
• Linux compatible NAPI APIs
• Logical SMP IDs for host CPUs based their boot-order
• Support for marking a host IRQ as inter-processor interrupt
• Generic exceptions table APIs
• Separate per-CPU irq handler for per-CPU host IRQs
• Generic PA->VA mappings API using rbtree based hash
• Memory read/write relaxed legacy APIs
• Linux-like vmm_host_irqdomain APIs which handles both static and extended host IRQs
• Priority-based rate monotonic scheduling algorithm
• Support for async-IPI based wakeup from wait-for-interrupt
• Allow guest regions to be added from emulator probe
• Emulated irqchip construct (i.e. vmm_devemu_irqchip) in device emulation framework

New Commands:

• mii command similar to Linux mii-tool
• sleep command similar to bash's sleep command
• echo command similar to bash's echo command
• set_affinity sub-command for host irq command
• module_load sub-command for vfs command

New Drivers:

• Micrel PHY driver
• i.MX6 FEC ethernet driver
• BCM2836 local INTC irqchip driver
• i.mx25 clock driver
• i.MX25 pin control driver

New Emulators:

• Generic PCIe host controller emulator (EXPERIEMENTAL)
• Simple pass-through emulator

ARM Ports:

• Use vmm_host_irq_find() to find appropriate IPI for architecture specific IPI callbacks

ARM32ve Port:

• Lazy context switching of VFP/ASIMD registers
• Force disable coprocessor and system traps in VCPU init
• Raspberry Pi2 (BCM2836 SOC) board support

ARM64 Port:

• Force disable coprocessor and system traps in VCPU init
• Added invalidate_dcache_mva() and invalidate_dcache_mva_range()

x86 Port:

• Fix for a crash on multi-IOAPIC system.
• A lot in port of Intel VMX (currently in nascent state)
• Support for passing initrd to xvisor as root FS
• Arch implementation of memcpy
• Default console now can be overridden with console bootrags
• Boot time script for mounting root
• Wait for block device settling
• Tested boot on Intel and AMD based desk/laptops