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 66