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author | Peter Xu <peterx@redhat.com> | 2016-07-14 13:56:10 +0800 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2016-07-20 19:30:27 +0300 |
commit | 1c7955c4503211f45a83e6480bd876f079ba5cd8 (patch) | |
tree | ae84c09c78af0b270955bcba5789445fe79bf8ea /hw/i386/x86-iommu.c | |
parent | b1af7959a66610669e1a019b9a84f6ed3a7936c6 (diff) | |
download | qemu-1c7955c4503211f45a83e6480bd876f079ba5cd8.zip qemu-1c7955c4503211f45a83e6480bd876f079ba5cd8.tar.gz qemu-1c7955c4503211f45a83e6480bd876f079ba5cd8.tar.bz2 |
x86-iommu: introduce parent class
Introducing parent class for intel-iommu devices named "x86-iommu". This
is preparation work to abstract shared functionalities out from Intel
and AMD IOMMUs. Currently, only the parent class is introduced. It does
nothing yet.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/x86-iommu.c')
-rw-r--r-- | hw/i386/x86-iommu.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/hw/i386/x86-iommu.c b/hw/i386/x86-iommu.c new file mode 100644 index 0000000..d739afb --- /dev/null +++ b/hw/i386/x86-iommu.c @@ -0,0 +1,53 @@ +/* + * QEMU emulation of common X86 IOMMU + * + * Copyright (C) 2016 Peter Xu, Red Hat <peterx@redhat.com> + * + * 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, or + * (at your option) any later version. + + * 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, see <http://www.gnu.org/licenses/>. + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/boards.h" +#include "hw/i386/x86-iommu.h" + +static void x86_iommu_realize(DeviceState *dev, Error **errp) +{ + X86IOMMUClass *x86_class = X86_IOMMU_GET_CLASS(dev); + if (x86_class->realize) { + x86_class->realize(dev, errp); + } +} + +static void x86_iommu_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + dc->realize = x86_iommu_realize; +} + +static const TypeInfo x86_iommu_info = { + .name = TYPE_X86_IOMMU_DEVICE, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(X86IOMMUState), + .class_init = x86_iommu_class_init, + .class_size = sizeof(X86IOMMUClass), + .abstract = true, +}; + +static void x86_iommu_register_types(void) +{ + type_register_static(&x86_iommu_info); +} + +type_init(x86_iommu_register_types) |