Function vmmdev_ioctl

freebsd/amd64/vmm/vmm_dev.c:349–881

}

static int
vmmdev_ioctl(struct cdev *cdev, u_long cmd, caddr_t data, int fflag,
	     struct thread *td)
{
	int error, vcpu, state_changed, size;
	cpuset_t *cpuset;
	struct vmmdev_softc *sc;
	struct vm_register *vmreg;
	struct vm_seg_desc *vmsegdesc;
	struct vm_register_set *vmregset;
	struct vm_run *vmrun;
	struct vm_exception *vmexc;
	struct vm_lapic_irq *vmirq;
	struct vm_lapic_msi *vmmsi;
	struct vm_ioapic_irq *ioapic_irq;
	struct vm_isa_irq *isa_irq;
	struct vm_isa_irq_trigger *isa_irq_trigger;
	struct vm_capability *vmcap;
	struct vm_pptdev *pptdev;
	struct vm_pptdev_mmio *pptmmio;
	struct vm_pptdev_msi *pptmsi;
	struct vm_pptdev_msix *pptmsix;
	struct vm_nmi *vmnmi;
	struct vm_stats *vmstats;
	struct vm_stat_desc *statdesc;
	struct vm_x2apic *x2apic;
	struct vm_gpa_pte *gpapte;
	struct vm_suspend *vmsuspend;
	struct vm_gla2gpa *gg;
	struct vm_activate_cpu *vac;
	struct vm_cpuset *vm_cpuset;
	struct vm_intinfo *vmii;
	struct vm_rtc_time *rtctime;
	struct vm_rtc_data *rtcdata;
	struct vm_memmap *mm;
	struct vm_cpu_topology *topology;
	struct vm_readwrite_kernemu_device *kernemu;
	uint64_t *regvals;
	int *regnums;
#ifdef BHYVE_SNAPSHOT
	struct vm_snapshot_meta *snapshot_meta;
#endif

	error = vmm_priv_check(curthread->td_ucred);
	if (error)
		return (error);

	sc = vmmdev_lookup2(cdev);
	if (sc == NULL)
		return (ENXIO);

	vcpu = -1;
	state_changed = 0;

	/*
	 * Some VMM ioctls can operate only on vcpus that are not running.
	 */
	switch (cmd) {