block/export: Add query-block-exports
[qemu.git] / include / hw / pci / shpc.h
1 #ifndef SHPC_H
2 #define SHPC_H
3
4 #include "exec/memory.h"
5 #include "hw/hotplug.h"
6 #include "hw/pci/pci.h"
7 #include "migration/vmstate.h"
8
9 struct SHPCDevice {
10 /* Capability offset in device's config space */
11 int cap;
12
13 /* # of hot-pluggable slots */
14 int nslots;
15
16 /* SHPC WRS: working register set */
17 uint8_t *config;
18
19 /* Used to enable checks on load. Note that writable bits are
20 * never checked even if set in cmask. */
21 uint8_t *cmask;
22
23 /* Used to implement R/W bytes */
24 uint8_t *wmask;
25
26 /* Used to implement RW1C(Write 1 to Clear) bytes */
27 uint8_t *w1cmask;
28
29 /* MMIO for the SHPC BAR */
30 MemoryRegion mmio;
31
32 /* Bus controlled by this SHPC */
33 PCIBus *sec_bus;
34
35 /* MSI already requested for this event */
36 int msi_requested;
37 };
38
39 void shpc_reset(PCIDevice *d);
40 int shpc_bar_size(PCIDevice *dev);
41 int shpc_init(PCIDevice *dev, PCIBus *sec_bus, MemoryRegion *bar,
42 unsigned off, Error **errp);
43 void shpc_cleanup(PCIDevice *dev, MemoryRegion *bar);
44 void shpc_free(PCIDevice *dev);
45 void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len);
46
47
48 void shpc_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
49 Error **errp);
50 void shpc_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
51 Error **errp);
52 void shpc_device_unplug_request_cb(HotplugHandler *hotplug_dev,
53 DeviceState *dev, Error **errp);
54
55 extern VMStateInfo shpc_vmstate_info;
56 #define SHPC_VMSTATE(_field, _type, _test) \
57 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _type, _test, 0, \
58 shpc_vmstate_info, 0)
59
60 static inline bool shpc_present(const PCIDevice *dev)
61 {
62 return dev->cap_present & QEMU_PCI_CAP_SHPC;
63 }
64
65 #endif