diff options
Diffstat (limited to 'sys/dev/vmm/vmm_dev.h')
| -rw-r--r-- | sys/dev/vmm/vmm_dev.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sys/dev/vmm/vmm_dev.h b/sys/dev/vmm/vmm_dev.h new file mode 100644 index 000000000000..410066c49cf2 --- /dev/null +++ b/sys/dev/vmm/vmm_dev.h @@ -0,0 +1,70 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2011 NetApp, Inc. + * Copyright (C) 2015 Mihai Carabas <mihai.carabas@gmail.com> + * All rights reserved. + */ + +#ifndef _DEV_VMM_DEV_H_ +#define _DEV_VMM_DEV_H_ + +#include <sys/types.h> +#include <sys/ioccom.h> +#include <machine/vmm_dev.h> + +#ifdef _KERNEL +struct thread; +struct vm; +struct vcpu; + +int vmmdev_init(void); +int vmmdev_cleanup(void); +int vmmdev_machdep_ioctl(struct vm *vm, struct vcpu *vcpu, u_long cmd, + caddr_t data, int fflag, struct thread *td); + +/* + * Entry in an ioctl handler table. A number of generic ioctls are defined, + * plus a table of machine-dependent ioctls. The flags indicate the + * required preconditions for a given ioctl. + * + * Some ioctls encode a vcpuid as the first member of their ioctl structure. + * These ioctls must specify one of the following flags: + * - ALLOC_VCPU: create the vCPU if it does not already exist + * - LOCK_ONE_VCPU: create the vCPU if it does not already exist + * and lock the vCPU for the duration of the ioctl + * - MAYBE_ALLOC_VCPU: if the vcpuid is -1, do nothing, otherwise + * create the vCPU if it does not already exist + */ +struct vmmdev_ioctl { + unsigned long cmd; +#define VMMDEV_IOCTL_SLOCK_MEMSEGS 0x01 +#define VMMDEV_IOCTL_XLOCK_MEMSEGS 0x02 +#define VMMDEV_IOCTL_LOCK_ONE_VCPU 0x04 +#define VMMDEV_IOCTL_LOCK_ALL_VCPUS 0x08 +#define VMMDEV_IOCTL_ALLOC_VCPU 0x10 +#define VMMDEV_IOCTL_MAYBE_ALLOC_VCPU 0x20 + int flags; +}; + +#define VMMDEV_IOCTL(_cmd, _flags) { .cmd = (_cmd), .flags = (_flags) } + +extern const struct vmmdev_ioctl vmmdev_machdep_ioctls[]; +extern const size_t vmmdev_machdep_ioctl_count; + +#endif /* _KERNEL */ + +struct vmmctl_vm_create { + char name[VM_MAX_NAMELEN + 1]; + int reserved[16]; +}; + +struct vmmctl_vm_destroy { + char name[VM_MAX_NAMELEN + 1]; + int reserved[16]; +}; + +#define VMMCTL_VM_CREATE _IOWR('V', 0, struct vmmctl_vm_create) +#define VMMCTL_VM_DESTROY _IOWR('V', 1, struct vmmctl_vm_destroy) + +#endif /* _DEV_VMM_DEV_H_ */ |