/* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __KVM_IODEV_H__ #define __KVM_IODEV_H__ #include <linux/kvm_types.h> struct kvm_io_device; /** * kvm_io_device_ops are called under kvm slots_lock. **/ struct kvm_io_device_ops { void (*read)(struct kvm_io_device *this, gpa_t addr, int len, void *val); void (*write)(struct kvm_io_device *this, gpa_t addr, int len, const void *val); int (*in_range)(struct kvm_io_device *this, gpa_t addr, int len, int is_write); void (*destructor)(struct kvm_io_device *this); }; struct kvm_io_device { const struct kvm_io_device_ops *ops; }; static inline void kvm_iodevice_init(struct kvm_io_device *dev, const struct kvm_io_device_ops *ops) { dev->ops = ops; } static inline void kvm_iodevice_read(struct kvm_io_device *dev, gpa_t addr, int len, void *val) { dev->ops->read(dev, addr, len, val); } static inline void kvm_iodevice_write(struct kvm_io_device *dev, gpa_t addr, int len, const void *val) { dev->ops->write(dev, addr, len, val); } static inline int kvm_iodevice_in_range(struct kvm_io_device *dev, gpa_t addr, int len, int is_write) { return dev->ops->in_range(dev, addr, len, is_write); } static inline void kvm_iodevice_destructor(struct kvm_io_device *dev) { if (dev->ops->destructor) dev->ops->destructor(dev); } #endif /* __KVM_IODEV_H__ */