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Will Deacon
bb7b03f385
Devices in the ioport space may have fdt bindings (e.g. 8250, rtc) and on architectures where a fixed ioport is not defined, it is necessary to generate fdt nodes for them. This patch creates a new virtual bus (tree of device_headers) for ioport devices, allowing architecture code to callback to the emulation code when generating fdt nodes, as we do for virtio-mmio devices. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
30 lines
675 B
C
30 lines
675 B
C
#ifndef KVM__DEVICES_H
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#define KVM__DEVICES_H
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#include <linux/rbtree.h>
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#include <linux/types.h>
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enum device_bus_type {
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DEVICE_BUS_PCI,
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DEVICE_BUS_MMIO,
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DEVICE_BUS_IOPORT,
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DEVICE_BUS_MAX,
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};
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struct device_header {
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enum device_bus_type bus_type;
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void *data;
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int dev_num;
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struct rb_node node;
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};
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int device__register(struct device_header *dev);
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void device__unregister(struct device_header *dev);
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struct device_header *device__find_dev(enum device_bus_type bus_type,
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u8 dev_num);
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struct device_header *device__first_dev(enum device_bus_type bus_type);
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struct device_header *device__next_dev(struct device_header *dev);
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#endif /* KVM__DEVICES_H */
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