vmm/io/ppt.c

54 #include "ppt.h"
169 DEFINE_CLASS_0(ppt, ppt_driver, ppt_methods, 0);
170 DRIVER_MODULE(ppt, pci, ppt_driver, ppt_devclass, NULL, NULL);
190 ppt_unmap_mmio(struct vm *vm, struct pptdev *ppt)
196 		seg = &ppt->mmio[i];
205 ppt_teardown_msi(struct pptdev *ppt)
211 	if (ppt->msi.num_msgs == 0)
214 	for (i = 0; i < ppt->msi.num_msgs; i++) {
215 		rid = ppt->msi.startrid + i;
216 		res = ppt->msi.res[i];
217 		cookie = ppt->msi.cookie[i];
220 			bus_teardown_intr(ppt->dev, res, cookie);
223 			bus_release_resource(ppt->dev, SYS_RES_IRQ, rid, res);
225 		ppt->msi.res[i] = NULL;
226 		ppt->msi.cookie[i] = NULL;
229 	if (ppt->msi.startrid == 1)
230 		pci_release_msi(ppt->dev);
232 	ppt->msi.num_msgs = 0;
236 ppt_teardown_msix_intr(struct pptdev *ppt, int idx)
242 	rid = ppt->msix.startrid + idx;
243 	res = ppt->msix.res[idx];
244 	cookie = ppt->msix.cookie[idx];
247 		bus_teardown_intr(ppt->dev, res, cookie);
250 		bus_release_resource(ppt->dev, SYS_RES_IRQ, rid, res);
252 	ppt->msix.res[idx] = NULL;
253 	ppt->msix.cookie[idx] = NULL;
257 ppt_teardown_msix(struct pptdev *ppt)
261 	if (ppt->msix.num_msgs == 0)
264 	for (i = 0; i < ppt->msix.num_msgs; i++)
265 		ppt_teardown_msix_intr(ppt, i);
267 	if (ppt->msix.msix_table_res) {
268 		bus_release_resource(ppt->dev, SYS_RES_MEMORY,
269 				     ppt->msix.msix_table_rid,
270 				     ppt->msix.msix_table_res);
271 		ppt->msix.msix_table_res = NULL;
272 		ppt->msix.msix_table_rid = 0;
275 	free(ppt->msix.res, M_PPTMSIX);
276 	free(ppt->msix.cookie, M_PPTMSIX);
277 	free(ppt->msix.arg, M_PPTMSIX);
279 	pci_release_msi(ppt->dev);
281 	ppt->msix.num_msgs = 0;
301 	struct pptdev *ppt;
305 		ppt = &pptdevs[n];
306 		if (ppt->vm != vm)
310 			seg = &ppt->mmio[i];
324 	struct pptdev *ppt;
326 	ppt = ppt_find(bus, slot, func);
327 	if (ppt != NULL) {
332 		if (ppt->vm != NULL && ppt->vm != vm)
335 		ppt->vm = vm;
345 	struct pptdev *ppt;
347 	ppt = ppt_find(bus, slot, func);
348 	if (ppt != NULL) {
352 		if (ppt->vm != vm)
354 		ppt_unmap_mmio(vm, ppt);
355 		ppt_teardown_msi(ppt);
356 		ppt_teardown_msix(ppt);
358 		ppt->vm = NULL;
389 	struct pptdev *ppt;
391 	ppt = ppt_find(bus, slot, func);
392 	if (ppt != NULL) {
393 		if (ppt->vm != vm)
397 			seg = &ppt->mmio[i];
416 	struct pptdev *ppt;
420 	ppt = pptarg->pptdev;
423 	if (ppt->vm != NULL)
424 		(void) lapic_set_intr(ppt->vm, pptarg->vcpu, vec);
436 	if (ppt->msi.startrid == 0)
448 	struct pptdev *ppt;
455 	ppt = ppt_find(bus, slot, func);
456 	if (ppt == NULL)
458 	if (ppt->vm != vm)		/* Make sure we own this device */
462 	ppt_teardown_msi(ppt);
468 	msi_count = pci_msi_count(ppt->dev);
489 		error = pci_alloc_msi(ppt->dev, &tmp);
493 			pci_release_msi(ppt->dev);
500 	ppt->msi.startrid = startrid;
506 		ppt->msi.num_msgs = i + 1;
507 		ppt->msi.cookie[i] = NULL;
510 		ppt->msi.res[i] = bus_alloc_resource_any(ppt->dev, SYS_RES_IRQ,
512 		if (ppt->msi.res[i] == NULL)
515 		ppt->msi.arg[i].pptdev = ppt;
516 		ppt->msi.arg[i].vec = vector + i;
517 		ppt->msi.arg[i].vcpu = destcpu;
519 		error = bus_setup_intr(ppt->dev, ppt->msi.res[i],
521 				       pptintr, NULL, &ppt->msi.arg[i],
522 				       &ppt->msi.cookie[i]);
528 		ppt_teardown_msi(ppt);
539 	struct pptdev *ppt;
544 	ppt = ppt_find(bus, slot, func);
545 	if (ppt == NULL)
547 	if (ppt->vm != vm)		/* Make sure we own this device */
550 	dinfo = device_get_ivars(ppt->dev);
558 	 *	Set up some variables in ppt->msix
560 	if (ppt->msix.num_msgs == 0) {
561 		numvec = pci_msix_count(ppt->dev);
565 		ppt->msix.startrid = 1;
566 		ppt->msix.num_msgs = numvec;
568 		res_size = numvec * sizeof(ppt->msix.res[0]);
569 		cookie_size = numvec * sizeof(ppt->msix.cookie[0]);
570 		arg_size = numvec * sizeof(ppt->msix.arg[0]);
572 		ppt->msix.res = malloc(res_size, M_PPTMSIX, M_WAITOK | M_ZERO);
573 		ppt->msix.cookie = malloc(cookie_size, M_PPTMSIX,
575 		ppt->msix.arg = malloc(arg_size, M_PPTMSIX, M_WAITOK | M_ZERO);
578 		ppt->msix.msix_table_res = bus_alloc_resource_any(ppt->dev,
581 		if (ppt->msix.msix_table_res == NULL) {
582 			ppt_teardown_msix(ppt);
585 		ppt->msix.msix_table_rid = rid;
588 		error = pci_alloc_msix(ppt->dev, &alloced);
590 			ppt_teardown_msix(ppt);
597 		ppt_teardown_msix_intr(ppt, idx);
600 		ppt->msix.cookie[idx] = NULL;
601 		rid = ppt->msix.startrid + idx;
602 		ppt->msix.res[idx] = bus_alloc_resource_any(ppt->dev, SYS_RES_IRQ,
604 		if (ppt->msix.res[idx] == NULL)
607 		ppt->msix.arg[idx].pptdev = ppt;
608 		ppt->msix.arg[idx].vec = msg & 0xFF;
609 		ppt->msix.arg[idx].vcpu = (addr >> 12) & 0xFF;
612 		error = bus_setup_intr(ppt->dev, ppt->msix.res[idx],
614 				       pptintr, NULL, &ppt->msix.arg[idx],
615 				       &ppt->msix.cookie[idx]);
618 			bus_teardown_intr(ppt->dev, ppt->msix.res[idx], ppt->msix.cookie[idx]);
619 			bus_release_resource(ppt->dev, SYS_RES_IRQ, rid, ppt->msix.res[idx]);
620 			ppt->msix.cookie[idx] = NULL;
621 			ppt->msix.res[idx] = NULL;
626 		ppt_teardown_msix_intr(ppt, idx);