pci/pds/dirty.c

13 #include "dirty.h"
20 	return pds_vfio->dirty.is_enabled;
25 	pds_vfio->dirty.is_enabled = true;
30 	pds_vfio->dirty.is_enabled = false;
95 static void pds_vfio_dirty_free_bitmaps(struct pds_vfio_dirty *dirty)
97 	if (!dirty->regions)
100 	for (int i = 0; i < dirty->num_regions; i++) {
101 		struct pds_vfio_region *region = &dirty->regions[i];
129 	struct pds_vfio_dirty *dirty = &pds_vfio->dirty;
131 	if (!dirty->regions)
134 	for (int i = 0; i < dirty->num_regions; i++) {
135 		struct pds_vfio_region *region = &dirty->regions[i];
173 static void pds_vfio_dirty_free_regions(struct pds_vfio_dirty *dirty)
175 	vfree(dirty->regions);
176 	dirty->regions = NULL;
177 	dirty->num_regions = 0;
185 	struct pds_vfio_dirty *dirty = &pds_vfio->dirty;
189 	dirty->regions = vcalloc(num_regions, sizeof(struct pds_vfio_region));
190 	if (!dirty->regions)
192 	dirty->num_regions = num_regions;
196 		struct pds_vfio_region *region = &dirty->regions[i];
208 			dev_err(&pdev->dev, "Failed to alloc dirty bitmaps: %pe\n",
215 			dev_err(&pdev->dev, "Failed to alloc dirty sg lists: %pe\n",
236 	pds_vfio_dirty_free_bitmaps(dirty);
238 	pds_vfio_dirty_free_regions(dirty);
258 	dev_dbg(&pdev->dev, "vf%u: Start dirty page tracking\n",
264 	/* find if dirty tracking is disabled, i.e. num_regions == 0 */
268 		dev_err(&pdev->dev, "Failed to get dirty status, err %pe\n",
278 			"Device doesn't support dirty tracking, max_regions %d\n",
332 			"Failed to allocate %d regions for tracking dirty regions: %pe\n",
359 		pds_vfio_dirty_free_bitmaps(&pds_vfio->dirty);
360 		pds_vfio_dirty_free_regions(&pds_vfio->dirty);
507 	struct pds_vfio_dirty *dirty = &pds_vfio->dirty;
509 	for (int i = 0; i < dirty->num_regions; i++) {
510 		struct pds_vfio_region *region = &dirty->regions[i];
530 	dev_dbg(dev, "vf%u: Get dirty page bitmap\n", pds_vfio->vf_id);
533 		dev_err(dev, "vf%u: Sync failed, dirty tracking is disabled\n",
581 		"Syncing dirty bitmap, iova 0x%lx length 0x%lx, bmp_offset %llu bmp_bytes %llu\n",
601 				unsigned long length, struct iova_bitmap *dirty)
609 	err = pds_vfio_dirty_sync(pds_vfio, dirty, iova, length);