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1 #ifndef XEN_HOST_PCI_DEVICE_H
2 #define XEN_HOST_PCI_DEVICE_H
3
4 #include "hw/pci/pci.h"
5
6 enum {
7 XEN_HOST_PCI_REGION_TYPE_IO = 1 << 1,
8 XEN_HOST_PCI_REGION_TYPE_MEM = 1 << 2,
9 XEN_HOST_PCI_REGION_TYPE_PREFETCH = 1 << 3,
10 XEN_HOST_PCI_REGION_TYPE_MEM_64 = 1 << 4,
11 };
12
13 typedef struct XenHostPCIIORegion {
14 pcibus_t base_addr;
15 pcibus_t size;
16 uint8_t type;
17 uint8_t bus_flags; /* Bus-specific bits */
18 } XenHostPCIIORegion;
19
20 typedef struct XenHostPCIDevice {
21 uint16_t domain;
22 uint8_t bus;
23 uint8_t dev;
24 uint8_t func;
25
26 /* different from the above in case of stubdomain */
27 uint16_t local_domain;
28 uint8_t local_bus;
29 uint8_t local_dev;
30 uint8_t local_func;
31
32 uint16_t vendor_id;
33 uint16_t device_id;
34 uint32_t class_code;
35 int irq;
36
37 XenHostPCIIORegion io_regions[PCI_NUM_REGIONS - 1];
38 XenHostPCIIORegion rom;
39
40 bool is_virtfn;
41
42 int config_fd;
43 } XenHostPCIDevice;
44
45 void xen_host_pci_device_get(XenHostPCIDevice *d, uint16_t domain,
46 uint8_t bus, uint8_t dev, uint8_t func,
47 Error **errp);
48 void xen_host_pci_device_put(XenHostPCIDevice *pci_dev);
49 bool xen_host_pci_device_closed(XenHostPCIDevice *d);
50
51 int xen_host_pci_get_byte(XenHostPCIDevice *d, int pos, uint8_t *p);
52 int xen_host_pci_get_word(XenHostPCIDevice *d, int pos, uint16_t *p);
53 int xen_host_pci_get_long(XenHostPCIDevice *d, int pos, uint32_t *p);
54 int xen_host_pci_get_block(XenHostPCIDevice *d, int pos, uint8_t *buf,
55 int len);
56 int xen_host_pci_set_byte(XenHostPCIDevice *d, int pos, uint8_t data);
57 int xen_host_pci_set_word(XenHostPCIDevice *d, int pos, uint16_t data);
58 int xen_host_pci_set_long(XenHostPCIDevice *d, int pos, uint32_t data);
59 int xen_host_pci_set_block(XenHostPCIDevice *d, int pos, uint8_t *buf,
60 int len);
61
62 int xen_host_pci_find_ext_cap_offset(XenHostPCIDevice *s, uint32_t cap);
63
64 #endif /* XEN_HOST_PCI_DEVICE_H */