1 #ifndef SHPC_H 2 #define SHPC_H 3 4 #include "qemu-common.h" 5 #include "exec/memory.h" 6 #include "hw/hotplug.h" 7 #include "hw/pci/pci.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, unsigned off); 42 void shpc_cleanup(PCIDevice *dev, MemoryRegion *bar); 43 void shpc_free(PCIDevice *dev); 44 void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len); 45 46 47 void shpc_device_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, 48 Error **errp); 49 void shpc_device_hot_unplug_request_cb(HotplugHandler *hotplug_dev, 50 DeviceState *dev, Error **errp); 51 52 extern VMStateInfo shpc_vmstate_info; 53 #define SHPC_VMSTATE(_field, _type, _test) \ 54 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _type, _test, 0, \ 55 shpc_vmstate_info, 0) 56 57 static inline bool shpc_present(const PCIDevice *dev) 58 { 59 return dev->cap_present & QEMU_PCI_CAP_SHPC; 60 } 61 62 #endif 63