[SeaBIOS] [PATCH] Support for booting from virtio disks
Stefan Hajnoczi
stefanha at gmail.com
Sun May 9 18:31:16 CEST 2010
On Sun, May 9, 2010 at 4:23 PM, Gleb Natapov <gleb at redhat.com> wrote:
Neat! I believe SeaBIOS will see virtio-blk devices as harddisks and
not attempt to boot ISOs? Many existing OS installers probably cannot
boot from virtio-blk, but in the longer term folks might like to get
rid of ATAPI CD-ROMs in their VMs.
> + char *desc = malloc_tmphigh(MAXDESCSIZE);
> + struct virtiodrive_s *vdrive_g = malloc_fseg(sizeof(*vdrive_g));
> + struct vring_virtqueue *vq = malloc_low(sizeof(*vq));
> + if (!vdrive_g || !desc || !vq) {
> + warn_noalloc();
> + return;
> + }
[...]
> + if (vp_find_vq(ioaddr, 0, vdrive_g->vq) < 0 ) {
> + free(vdrive_g);
> + dprintf(1, "fail to find vq for virtio-blk %x:%x\n",
> + pci_bdf_to_bus (bdf), pci_bdf_to_dev(bdf));
> + continue;
> + }
Are desc, vdrive_g, and/or vq getting leaked on error?
Stefan
More information about the SeaBIOS
mailing list