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author | Robert Mustacchi <rm@joyent.com> | 2011-06-02 14:54:03 -0700 |
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committer | Robert Mustacchi <rm@joyent.com> | 2011-06-02 14:54:20 -0700 |
commit | b2ebb7abb694a41b25485941c83f01e1b975f958 (patch) | |
tree | 54e616f9dba225e4b7e75a68eca0274a45d6d42a /kvm_iodev.h | |
parent | 72cb25693684299d52badc1b2c331715b1c2ea38 (diff) | |
download | illumos-kvm-b2ebb7abb694a41b25485941c83f01e1b975f958.tar.gz |
HVM-268 iodev.h should be named kvm_iodev.h
Diffstat (limited to 'kvm_iodev.h')
-rw-r--r-- | kvm_iodev.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/kvm_iodev.h b/kvm_iodev.h new file mode 100644 index 0000000..522d8c6 --- /dev/null +++ b/kvm_iodev.h @@ -0,0 +1,57 @@ +/* + * 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 "kvm_types.h" + +struct kvm_io_device; + +/** + * kvm_io_device_ops are called under kvm slots_lock. + * read and write handlers return 0 if the transaction has been handled, + * or non-zero to have it passed to the next device. + **/ +typedef struct kvm_io_device_ops { + int (*read)(struct kvm_io_device *this, + gpa_t addr, + int len, + void *val); + int (*write)(struct kvm_io_device *this, + gpa_t addr, + int len, + const void *val); + void (*destructor)(struct kvm_io_device *this); +} kvm_io_device_ops_t; + + +typedef struct kvm_io_device { + struct kvm_lapic *lapic; + const struct kvm_io_device_ops *ops; +} kvm_io_device_t; + +void kvm_iodevice_init(struct kvm_io_device *, + const struct kvm_io_device_ops *); + +int kvm_iodevice_read(struct kvm_io_device *, + gpa_t, int, void *); + +int kvm_iodevice_write(struct kvm_io_device *dev, + gpa_t addr, int l, const void *v); + +void kvm_iodevice_destructor(struct kvm_io_device *dev); + +#endif /* __KVM_IODEV_H__ */ |