diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/vfio/common.c | 32 | ||||
| -rw-r--r-- | hw/vfio/trace-events | 1 |
2 files changed, 29 insertions, 4 deletions
diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 13471ae..c6e98b8 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -924,6 +924,18 @@ int vfio_region_setup(Object *obj, VFIODevice *vbasedev, VFIORegion *region, return 0; } +static void vfio_subregion_unmap(VFIORegion *region, int index) +{ + trace_vfio_region_unmap(memory_region_name(®ion->mmaps[index].mem), + region->mmaps[index].offset, + region->mmaps[index].offset + + region->mmaps[index].size - 1); + memory_region_del_subregion(region->mem, ®ion->mmaps[index].mem); + munmap(region->mmaps[index].mmap, region->mmaps[index].size); + object_unparent(OBJECT(®ion->mmaps[index].mem)); + region->mmaps[index].mmap = NULL; +} + int vfio_region_mmap(VFIORegion *region) { int i, prot = 0; @@ -954,10 +966,7 @@ int vfio_region_mmap(VFIORegion *region) region->mmaps[i].mmap = NULL; for (i--; i >= 0; i--) { - memory_region_del_subregion(region->mem, ®ion->mmaps[i].mem); - munmap(region->mmaps[i].mmap, region->mmaps[i].size); - object_unparent(OBJECT(®ion->mmaps[i].mem)); - region->mmaps[i].mmap = NULL; + vfio_subregion_unmap(region, i); } return ret; @@ -982,6 +991,21 @@ int vfio_region_mmap(VFIORegion *region) return 0; } +void vfio_region_unmap(VFIORegion *region) +{ + int i; + + if (!region->mem) { + return; + } + + for (i = 0; i < region->nr_mmaps; i++) { + if (region->mmaps[i].mmap) { + vfio_subregion_unmap(region, i); + } + } +} + void vfio_region_exit(VFIORegion *region) { int i; diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index 93a0bc2..a0c7b49 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -113,6 +113,7 @@ vfio_region_mmap(const char *name, unsigned long offset, unsigned long end) "Reg vfio_region_exit(const char *name, int index) "Device %s, region %d" vfio_region_finalize(const char *name, int index) "Device %s, region %d" vfio_region_mmaps_set_enabled(const char *name, bool enabled) "Region %s mmaps enabled: %d" +vfio_region_unmap(const char *name, unsigned long offset, unsigned long end) "Region %s unmap [0x%lx - 0x%lx]" vfio_region_sparse_mmap_header(const char *name, int index, int nr_areas) "Device %s region %d: %d sparse mmap entries" vfio_region_sparse_mmap_entry(int i, unsigned long start, unsigned long end) "sparse entry %d [0x%lx - 0x%lx]" vfio_get_dev_region(const char *name, int index, uint32_t type, uint32_t subtype) "%s index %d, %08x/%0x8" |