[mirror_ubuntu-bionic-kernel.git] / virt / kvm / iodev.h

/*
 * 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 {
	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);

	void             *private;
};

static inline void kvm_iodevice_read(struct kvm_io_device *dev,
				     gpa_t addr,
				     int len,
				     void *val)
{
	dev->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->write(dev, addr, len, val);
}

static inline int kvm_iodevice_inrange(struct kvm_io_device *dev,
				       gpa_t addr, int len, int is_write)
{
	return dev->in_range(dev, addr, len, is_write);
}

static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
{
	if (dev->destructor)
		dev->destructor(dev);
}

#endif /* __KVM_IODEV_H__ */
Commit	Line	Data
e2174021 HB	1	/*
	2	* This program is free software; you can redistribute it and/or modify
	3	* it under the terms of the GNU General Public License as published by
	4	* the Free Software Foundation; either version 2 of the License.
	5	*
	6	* This program is distributed in the hope that it will be useful,
	7	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	8	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	9	* GNU General Public License for more details.
	10	*
	11	* You should have received a copy of the GNU General Public License
	12	* along with this program; if not, write to the Free Software
	13	* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	14	*/
	15
	16	#ifndef __KVM_IODEV_H__
	17	#define __KVM_IODEV_H__
	18
edf88417	19	#include <linux/kvm_types.h>
e2174021 HB	20
	21	struct kvm_io_device {
	22	void (read)(struct kvm_io_device this,
	23	gpa_t addr,
	24	int len,
	25	void *val);
	26	void (write)(struct kvm_io_device this,
	27	gpa_t addr,
	28	int len,
	29	const void *val);
92760499 LV	30	int (in_range)(struct kvm_io_device this, gpa_t addr, int len,
92760499 LV	31	int is_write);
e2174021 HB	32	void (destructor)(struct kvm_io_device this);
	33
	34	void *private;
	35	};
	36
	37	static inline void kvm_iodevice_read(struct kvm_io_device *dev,
	38	gpa_t addr,
	39	int len,
	40	void *val)
	41	{
	42	dev->read(dev, addr, len, val);
	43	}
	44
	45	static inline void kvm_iodevice_write(struct kvm_io_device *dev,
	46	gpa_t addr,
	47	int len,
	48	const void *val)
	49	{
	50	dev->write(dev, addr, len, val);
	51	}
	52
92760499 LV	53	static inline int kvm_iodevice_inrange(struct kvm_io_device *dev,
92760499 LV	54	gpa_t addr, int len, int is_write)
e2174021	55	{
92760499	56	return dev->in_range(dev, addr, len, is_write);
e2174021 HB	57	}
	58
	59	static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
	60	{
	61	if (dev->destructor)
	62	dev->destructor(dev);
	63	}
	64
	65	#endif /* __KVM_IODEV_H__ */