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[dev][virtio-gpu] fail if cannot allocate enough memory for framebuffer

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Also print framebuffer location and size.
This commit is contained in:
Travis Geiselbrecht
2015-10-16 16:06:51 -07:00
parent 16b1b594f4
commit 4e0b62745c
1 changed files with 7 additions and 0 deletions
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7
dev/virtio/gpu/virtio-gpu.c
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@@ -381,6 +381,13 @@ status_t virtio_gpu_start(struct virtio_device *dev)
/* attach a backing store to the resource */
size_t len = gdev->pmode.r.width * gdev->pmode.r.height * 4;
gdev->fb = pmm_alloc_kpages(ROUNDUP(len, PAGE_SIZE) / PAGE_SIZE, NULL);
if (!gdev->fb) {
TRACEF("failed to allocate framebuffer, wanted 0x%zx bytes\n", len);
return ERR_NO_MEMORY;
}
printf("virtio-gpu: framebuffer at %p, 0x%zx bytes\n", gdev->fb, len);
err = attach_backing(gdev, gdev->display_resource_id, gdev->fb, len);
if (err < 0) {
LTRACEF("failed to attach backing store\n");