#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/vfio/vfio-cpr.h"
+#include "hw/vfio/vfio-device.h"
#include "migration/blocker.h"
#include "migration/cpr.h"
#include "migration/migration.h"
#include "migration/vmstate.h"
#include "system/iommufd.h"
#include "vfio-iommufd.h"
+#include "trace.h"
+
+typedef struct CprVFIODevice {
+ char *name;
+ unsigned int namelen;
+ uint32_t ioas_id;
+ int devid;
+ uint32_t hwpt_id;
+ QLIST_ENTRY(CprVFIODevice) next;
+} CprVFIODevice;
+
+static const VMStateDescription vmstate_cpr_vfio_device = {
+ .name = "cpr vfio device",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(namelen, CprVFIODevice),
+ VMSTATE_VBUFFER_ALLOC_UINT32(name, CprVFIODevice, 0, NULL, namelen),
+ VMSTATE_INT32(devid, CprVFIODevice),
+ VMSTATE_UINT32(ioas_id, CprVFIODevice),
+ VMSTATE_UINT32(hwpt_id, CprVFIODevice),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+const VMStateDescription vmstate_cpr_vfio_devices = {
+ .name = CPR_STATE "/vfio devices",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (const VMStateField[]){
+ VMSTATE_QLIST_V(vfio_devices, CprState, 1, vmstate_cpr_vfio_device,
+ CprVFIODevice, next),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void vfio_cpr_save_device(VFIODevice *vbasedev)
+{
+ CprVFIODevice *elem = g_new0(CprVFIODevice, 1);
+
+ elem->name = g_strdup(vbasedev->name);
+ elem->namelen = strlen(vbasedev->name) + 1;
+ elem->ioas_id = vbasedev->cpr.ioas_id;
+ elem->devid = vbasedev->devid;
+ elem->hwpt_id = vbasedev->cpr.hwpt_id;
+ QLIST_INSERT_HEAD(&cpr_state.vfio_devices, elem, next);
+}
+
+static CprVFIODevice *find_device(const char *name)
+{
+ CprVFIODeviceList *head = &cpr_state.vfio_devices;
+ CprVFIODevice *elem;
+
+ QLIST_FOREACH(elem, head, next) {
+ if (!strcmp(elem->name, name)) {
+ return elem;
+ }
+ }
+ return NULL;
+}
+
+static void vfio_cpr_delete_device(const char *name)
+{
+ CprVFIODevice *elem = find_device(name);
-const VMStateDescription vmstate_cpr_vfio_devices; /* TBD in a later patch */
+ if (elem) {
+ QLIST_REMOVE(elem, next);
+ g_free(elem->name);
+ g_free(elem);
+ }
+}
+
+static bool vfio_cpr_find_device(VFIODevice *vbasedev)
+{
+ CprVFIODevice *elem = find_device(vbasedev->name);
+
+ if (elem) {
+ vbasedev->cpr.ioas_id = elem->ioas_id;
+ vbasedev->devid = elem->devid;
+ vbasedev->cpr.hwpt_id = elem->hwpt_id;
+ trace_vfio_cpr_find_device(elem->ioas_id, elem->devid, elem->hwpt_id);
+ return true;
+ }
+ return false;
+}
static bool vfio_cpr_supported(IOMMUFDBackend *be, Error **errp)
{
void vfio_iommufd_cpr_register_device(VFIODevice *vbasedev)
{
+ if (!cpr_is_incoming()) {
+ vfio_cpr_save_device(vbasedev);
+ }
}
void vfio_iommufd_cpr_unregister_device(VFIODevice *vbasedev)
{
+ vfio_cpr_delete_device(vbasedev->name);
+}
+
+void vfio_cpr_load_device(VFIODevice *vbasedev)
+{
+ if (cpr_is_incoming()) {
+ bool ret = vfio_cpr_find_device(vbasedev);
+ g_assert(ret);
+ }
}
iommufd_cdev_device_info(char *name, int devfd, int num_irqs, int num_regions, int flags) " %s (%d) num_irqs=%d num_regions=%d flags=%d"
iommufd_cdev_pci_hot_reset_dep_devices(int domain, int bus, int slot, int function, int dev_id) "\t%04x:%02x:%02x.%x devid %d"
+# cpr-iommufd.c
+vfio_cpr_find_device(uint32_t ioas_id, int devid, uint32_t hwpt_id) "ioas_id %u, devid %d, hwpt_id %u"
+
# device.c
vfio_device_get_region_info_type(const char *name, int index, uint32_t type, uint32_t subtype) "%s index %d, %08x/%08x"
vfio_device_reset_handler(void) ""