xref: /kvmtool/pci.c (revision 4402a5812a469872c1d952e932037d0a06b0e49e)
160742802SPekka Enberg #include "kvm/pci.h"
260742802SPekka Enberg 
360742802SPekka Enberg #include "kvm/ioport.h"
460742802SPekka Enberg 
560742802SPekka Enberg #include <stdint.h>
660742802SPekka Enberg 
7*4402a581SPekka Enberg static struct pci_config_address pci_config_address;
860742802SPekka Enberg 
9305b72ceSCyrill Gorcunov static bool pci_config_address_out(struct kvm *self, uint16_t port, void *data, int size, uint32_t count)
1060742802SPekka Enberg {
11*4402a581SPekka Enberg 	struct pci_config_address *addr = data;
1260742802SPekka Enberg 
13dad5bc09SCyrill Gorcunov 	pci_config_address	= *addr;
1460742802SPekka Enberg 
1560742802SPekka Enberg 	return true;
1660742802SPekka Enberg }
1760742802SPekka Enberg 
18305b72ceSCyrill Gorcunov static bool pci_config_address_in(struct kvm *self, uint16_t port, void *data, int size, uint32_t count)
1960742802SPekka Enberg {
20*4402a581SPekka Enberg 	struct pci_config_address *addr = data;
2160742802SPekka Enberg 
22305b72ceSCyrill Gorcunov 	*addr		=  pci_config_address;
2360742802SPekka Enberg 
2460742802SPekka Enberg 	return true;
2560742802SPekka Enberg }
2660742802SPekka Enberg 
27305b72ceSCyrill Gorcunov static struct ioport_operations pci_config_address_ops = {
28305b72ceSCyrill Gorcunov 	.io_in		= pci_config_address_in,
29305b72ceSCyrill Gorcunov 	.io_out		= pci_config_address_out,
3060742802SPekka Enberg };
3160742802SPekka Enberg 
32305b72ceSCyrill Gorcunov static bool pci_config_data_out(struct kvm *self, uint16_t port, void *data, int size, uint32_t count)
3360742802SPekka Enberg {
3460742802SPekka Enberg 	return true;
3560742802SPekka Enberg }
3660742802SPekka Enberg 
37305b72ceSCyrill Gorcunov static bool pci_config_data_in(struct kvm *self, uint16_t port, void *data, int size, uint32_t count)
3860742802SPekka Enberg {
3960742802SPekka Enberg 	return true;
4060742802SPekka Enberg }
4160742802SPekka Enberg 
42305b72ceSCyrill Gorcunov static struct ioport_operations pci_config_data_ops = {
43305b72ceSCyrill Gorcunov 	.io_in		= pci_config_data_in,
44305b72ceSCyrill Gorcunov 	.io_out		= pci_config_data_out,
4560742802SPekka Enberg };
4660742802SPekka Enberg 
4760742802SPekka Enberg void pci__init(void)
4860742802SPekka Enberg {
49305b72ceSCyrill Gorcunov 	ioport__register(PCI_CONFIG_DATA,    &pci_config_data_ops);
50305b72ceSCyrill Gorcunov 	ioport__register(PCI_CONFIG_ADDRESS, &pci_config_address_ops);
5160742802SPekka Enberg }
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