virt Directory Reference

Directories
	include

Files
	devices.c
	The virt machine's devices that no bus finds (see dev/platform.h): where QEMU puts them (hw/arm/virt.c), as its devicetree also says.
	fdt.c
	Reading the devicetree that the boot loader passes (a flattened one, an FDT) into the kernel's struct boot: the RAM (/memory's reg property), the initrd (/chosen's linux,initrd-start and linux,initrd-end), and the command line (/chosen's bootargs).
	gic.c
	The virt machine's interrupt controller: ARM's GICv2.
	init.c
	QEMU's virt machine: setting up its interrupt controller and its PCI Express host bridge.
	irq.c
	The interrupts' handlers on the virt machine, installed by their drivers (see dev/irq.h).
	psci.c
	Restarting and powering off the machine, by PSCI calls to the firmware (QEMU's), made with hvc, as the virt machine's devicetree says (/psci: method "hvc").
	rtc.c
	The date and time: the virt machine's PL031 real time clock, which counts seconds since the epoch.
	timer.c
	The tick: the virtual timer of ARM's generic timer, which is each CPU's own (PPI 27).