1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#ifndef __X86_PCI_H__
#define __X86_PCI_H__
#include <xen/mm.h>
#define CF8_BDF(cf8) ( ((cf8) & 0x00ffff00) >> 8)
#define CF8_ADDR_LO(cf8) ( (cf8) & 0x000000fc)
#define CF8_ADDR_HI(cf8) ( ((cf8) & 0x0f000000) >> 16)
#define CF8_ENABLED(cf8) (!!((cf8) & 0x80000000))
#define IS_SNB_GFX(id) (id == 0x01068086 || id == 0x01168086 \
|| id == 0x01268086 || id == 0x01028086 \
|| id == 0x01128086 || id == 0x01228086 \
|| id == 0x010A8086 )
struct arch_pci_dev {
vmask_t used_vectors;
/*
* These fields are (de)initialized under pcidevs-lock. Other uses of
* them don't race (de)initialization and hence don't strictly need any
* locking.
*/
union {
/* Subset of struct arch_iommu's fields, to be used in dom_io. */
struct {
uint64_t pgd_maddr;
} vtd;
struct {
struct page_info *root_table;
} amd;
};
domid_t pseudo_domid;
mfn_t leaf_mfn;
struct page_list_head pgtables_list;
};
int pci_conf_write_intercept(unsigned int seg, unsigned int bdf,
unsigned int reg, unsigned int size,
uint32_t *data);
int pci_msi_conf_write_intercept(struct pci_dev *, unsigned int reg,
unsigned int size, uint32_t *data);
bool_t pci_mmcfg_decode(unsigned long mfn, unsigned int *seg,
unsigned int *bdf);
bool_t pci_ro_mmcfg_decode(unsigned long mfn, unsigned int *seg,
unsigned int *bdf);
/* MMCFG external variable defines */
extern int pci_mmcfg_config_num;
extern struct acpi_mcfg_allocation *pci_mmcfg_config;
/* Unlike ARM, PCI passthrough is always enabled for x86. */
static always_inline bool is_pci_passthrough_enabled(void)
{
return true;
}
void arch_pci_init_pdev(struct pci_dev *pdev);
static inline bool pci_check_bar(const struct pci_dev *pdev,
mfn_t start, mfn_t end)
{
/*
* Check if BAR is not overlapping with any memory region defined
* in the memory map.
*/
return is_memory_hole(start, end);
}
#endif /* __X86_PCI_H__ */
|
