diff options
| -rw-r--r-- | hw/display/cirrus_vga.c | 12 | ||||
| -rw-r--r-- | hw/display/virtio-gpu.c | 5 |
2 files changed, 13 insertions, 4 deletions
diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c index 02d9ed0bd4..41e71af08a 100644 --- a/hw/display/cirrus_vga.c +++ b/hw/display/cirrus_vga.c @@ -640,10 +640,16 @@ static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin, } for (y = 0; y < lines; y++) { - off_cur = off_begin; + off_cur = off_begin & s->cirrus_addr_mask; off_cur_end = ((off_cur + bytesperline - 1) & s->cirrus_addr_mask) + 1; - assert(off_cur_end >= off_cur); - memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur); + if (off_cur_end >= off_cur) { + memory_region_set_dirty(&s->vga.vram, off_cur, off_cur_end - off_cur); + } else { + /* wraparound */ + memory_region_set_dirty(&s->vga.vram, off_cur, + s->cirrus_addr_mask + 1 - off_cur); + memory_region_set_dirty(&s->vga.vram, 0, off_cur_end); + } off_begin += off_pitch; } } diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 5f0dd7c150..90be4e3ed7 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -646,9 +646,9 @@ int virtio_gpu_create_mapping_iov(VirtIOGPU *g, uint64_t a = le64_to_cpu(ents[i].addr); uint32_t l = le32_to_cpu(ents[i].length); hwaddr len = l; - (*iov)[i].iov_len = l; (*iov)[i].iov_base = dma_memory_map(VIRTIO_DEVICE(g)->dma_as, a, &len, DMA_DIRECTION_TO_DEVICE); + (*iov)[i].iov_len = len; if (addr) { (*addr)[i] = a; } @@ -656,6 +656,9 @@ int virtio_gpu_create_mapping_iov(VirtIOGPU *g, qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to map MMIO memory for" " resource %d element %d\n", __func__, ab->resource_id, i); + if ((*iov)[i].iov_base) { + i++; /* cleanup the 'i'th map */ + } virtio_gpu_cleanup_mapping_iov(g, *iov, i); g_free(ents); *iov = NULL; |