138 	struct virtio_pci_common_cfg cfg;  member
1171 	dev->mmio->cfg.queue_enable = 0;  in reset_device()
1775 static void save_vq_config(const struct virtio_pci_common_cfg *cfg,  in save_vq_config()  argument
1778 	vq->pci_config = *cfg;  in save_vq_config()
1781 static void restore_vq_config(struct virtio_pci_common_cfg *cfg,  in restore_vq_config()  argument
1787 	memcpy((void *)cfg + off, (void *)&vq->pci_config + off,  in restore_vq_config()
1788 	       sizeof(*cfg) - off);  in restore_vq_config()
1883 	case offsetof(struct virtio_pci_mmio, cfg.device_feature_select):  in emulate_mmio_write()
1892 			d->mmio->cfg.device_feature = d->features;  in emulate_mmio_write()
1894 			d->mmio->cfg.device_feature = (d->features >> 32);  in emulate_mmio_write()
1896 			d->mmio->cfg.device_feature = 0;  in emulate_mmio_write()
1898 	case offsetof(struct virtio_pci_mmio, cfg.guest_feature_select):  in emulate_mmio_write()
1902 	case offsetof(struct virtio_pci_mmio, cfg.guest_feature):  in emulate_mmio_write()
1903 		if (d->mmio->cfg.guest_feature_select == 0) {  in emulate_mmio_write()
1907 			assert(d->mmio->cfg.guest_feature_select == 1);  in emulate_mmio_write()
1921 	case offsetof(struct virtio_pci_mmio, cfg.device_status): {  in emulate_mmio_write()
1937 		if (d->mmio->cfg.device_status & ~val)  in emulate_mmio_write()
1939 				   d->mmio->cfg.device_status, val);  in emulate_mmio_write()
1948 		    && !(d->mmio->cfg.device_status & VIRTIO_CONFIG_S_DRIVER_OK))  in emulate_mmio_write()
1982 		switch (val & ~d->mmio->cfg.device_status) {  in emulate_mmio_write()
1993 				   d->mmio->cfg.device_status, val);  in emulate_mmio_write()
1995 		if (d->mmio->cfg.device_status != prev)  in emulate_mmio_write()
1997 				   d->mmio->cfg.device_status, val);  in emulate_mmio_write()
2000 		switch (val & ~d->mmio->cfg.device_status) {  in emulate_mmio_write()
2011 	case offsetof(struct virtio_pci_mmio, cfg.queue_select):  in emulate_mmio_write()
2020 			d->mmio->cfg.queue_size = 0;  in emulate_mmio_write()
2024 		if (d->mmio->cfg.queue_size)  in emulate_mmio_write()
2025 			save_vq_config(&d->mmio->cfg,  in emulate_mmio_write()
2026 				       vq_by_num(d, d->mmio->cfg.queue_select));  in emulate_mmio_write()
2028 		restore_vq_config(&d->mmio->cfg, vq);  in emulate_mmio_write()
2030 	case offsetof(struct virtio_pci_mmio, cfg.queue_size):  in emulate_mmio_write()
2039 		if (d->mmio->cfg.queue_enable)  in emulate_mmio_write()
2042 	case offsetof(struct virtio_pci_mmio, cfg.queue_msix_vector):  in emulate_mmio_write()
2044 	case offsetof(struct virtio_pci_mmio, cfg.queue_enable): {  in emulate_mmio_write()
2045 		struct virtqueue *vq = vq_by_num(d, d->mmio->cfg.queue_select);  in emulate_mmio_write()
2067 		if (d->mmio->cfg.device_status & VIRTIO_CONFIG_S_DRIVER_OK)  in emulate_mmio_write()
2070 		d->mmio->cfg.queue_enable = val;  in emulate_mmio_write()
2071 		save_vq_config(&d->mmio->cfg, vq);  in emulate_mmio_write()
2075 	case offsetof(struct virtio_pci_mmio, cfg.queue_notify_off):  in emulate_mmio_write()
2077 	case offsetof(struct virtio_pci_mmio, cfg.queue_desc_lo):  in emulate_mmio_write()
2078 	case offsetof(struct virtio_pci_mmio, cfg.queue_desc_hi):  in emulate_mmio_write()
2079 	case offsetof(struct virtio_pci_mmio, cfg.queue_avail_lo):  in emulate_mmio_write()
2080 	case offsetof(struct virtio_pci_mmio, cfg.queue_avail_hi):  in emulate_mmio_write()
2081 	case offsetof(struct virtio_pci_mmio, cfg.queue_used_lo):  in emulate_mmio_write()
2082 	case offsetof(struct virtio_pci_mmio, cfg.queue_used_hi):  in emulate_mmio_write()
2089 		if (d->mmio->cfg.queue_enable)  in emulate_mmio_write()
2100 		if (!(d->mmio->cfg.device_status & VIRTIO_CONFIG_S_FEATURES_OK))  in emulate_mmio_write()
2154 	if (!(d->mmio->cfg.device_status & VIRTIO_CONFIG_S_DRIVER))  in emulate_mmio_write()
2156 	if (d->mmio->cfg.device_status & VIRTIO_CONFIG_S_FEATURES_OK)  in emulate_mmio_write()
2196 	case offsetof(struct virtio_pci_mmio, cfg.device_feature_select):  in emulate_mmio_read()
2197 	case offsetof(struct virtio_pci_mmio, cfg.device_feature):  in emulate_mmio_read()
2198 	case offsetof(struct virtio_pci_mmio, cfg.guest_feature_select):  in emulate_mmio_read()
2199 	case offsetof(struct virtio_pci_mmio, cfg.guest_feature):  in emulate_mmio_read()
2211 		if (!(d->mmio->cfg.device_status & VIRTIO_CONFIG_S_DRIVER))  in emulate_mmio_read()
2215 	case offsetof(struct virtio_pci_mmio, cfg.msix_config):  in emulate_mmio_read()
2217 	case offsetof(struct virtio_pci_mmio, cfg.num_queues):  in emulate_mmio_read()
2219 	case offsetof(struct virtio_pci_mmio, cfg.device_status):  in emulate_mmio_read()
2223 	case offsetof(struct virtio_pci_mmio, cfg.config_generation):  in emulate_mmio_read()
2243 		if (!(d->mmio->cfg.device_status & VIRTIO_CONFIG_S_DRIVER_OK))  in emulate_mmio_read()
2277 		if (!(d->mmio->cfg.device_status & VIRTIO_CONFIG_S_DRIVER))  in emulate_mmio_read()
2404 	vq->dev->mmio->cfg.num_queues++;  in add_pci_virtqueue()
2546 	bar_offset = offsetof(struct virtio_pci_mmio, cfg);  in init_pci_config()
2547 	bar_len = sizeof(((struct virtio_pci_mmio *)0)->cfg);  in init_pci_config()