1 files changed, 65 insertions, 0 deletions
diff --git a/include/hw/pci/shpc.h b/include/hw/pci/shpc.h
new file mode 100644
index 000000000..d5683b739
--- /dev/null
+++ b/include/hw/pci/shpc.h
@@ -0,0 +1,65 @@
+#ifndef SHPC_H
+#define SHPC_H
+
+#include "exec/memory.h"
+#include "hw/hotplug.h"
+#include "hw/pci/pci.h"
+#include "migration/vmstate.h"
+
+struct SHPCDevice {
+    /* Capability offset in device's config space */
+    int cap;
+
+    /* # of hot-pluggable slots */
+    int nslots;
+
+    /* SHPC WRS: working register set */
+    uint8_t *config;
+
+    /* Used to enable checks on load. Note that writable bits are
+     * never checked even if set in cmask. */
+    uint8_t *cmask;
+
+    /* Used to implement R/W bytes */
+    uint8_t *wmask;
+
+    /* Used to implement RW1C(Write 1 to Clear) bytes */
+    uint8_t *w1cmask;
+
+    /* MMIO for the SHPC BAR */
+    MemoryRegion mmio;
+
+    /* Bus controlled by this SHPC */
+    PCIBus *sec_bus;
+
+    /* MSI already requested for this event */
+    int msi_requested;
+};
+
+void shpc_reset(PCIDevice *d);
+int shpc_bar_size(PCIDevice *dev);
+int shpc_init(PCIDevice *dev, PCIBus *sec_bus, MemoryRegion *bar,
+              unsigned off, Error **errp);
+void shpc_cleanup(PCIDevice *dev, MemoryRegion *bar);
+void shpc_free(PCIDevice *dev);
+void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len);
+
+
+void shpc_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
+                         Error **errp);
+void shpc_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
+                           Error **errp);
+void shpc_device_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                   DeviceState *dev, Error **errp);
+
+extern VMStateInfo shpc_vmstate_info;
+#define SHPC_VMSTATE(_field, _type,  _test) \
+    VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _type, _test, 0, \
+                                    shpc_vmstate_info, 0)
+
+static inline bool shpc_present(const PCIDevice *dev)
+{
+    return dev->cap_present & QEMU_PCI_CAP_SHPC;
+}
+
+#endif