From: Gleb Natapov <gleb@redhat.com> To: Stefan Hajnoczi <stefanha@gmail.com> Cc: seabios@seabios.org, qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: Re: [SeaBIOS] [PATCH] Support for booting from virtio disks Date: Sun, 9 May 2010 19:47:18 +0300 [thread overview] Message-ID: <20100509164718.GA4497@redhat.com> (raw) In-Reply-To: <z2ofbd9d3991005090931k3b6c247fu9eb4007d18465eda@mail.gmail.com> On Sun, May 09, 2010 at 05:31:16PM +0100, Stefan Hajnoczi wrote: > On Sun, May 9, 2010 at 4:23 PM, Gleb Natapov <gleb@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. > The patch assumes that all virtio-blk devices are disks and it can boot from any of virtio-blk disks if there is more then one. I am not sure CDROM can be attached via virtio-blk interface. > > + 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? > vdrive_g is freed, but desc and vq are leaked. Will fix. Thanks! -- Gleb.
WARNING: multiple messages have this Message-ID (diff)
From: Gleb Natapov <gleb@redhat.com> To: Stefan Hajnoczi <stefanha@gmail.com> Cc: seabios@seabios.org, qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: [Qemu-devel] Re: [SeaBIOS] [PATCH] Support for booting from virtio disks Date: Sun, 9 May 2010 19:47:18 +0300 [thread overview] Message-ID: <20100509164718.GA4497@redhat.com> (raw) In-Reply-To: <z2ofbd9d3991005090931k3b6c247fu9eb4007d18465eda@mail.gmail.com> On Sun, May 09, 2010 at 05:31:16PM +0100, Stefan Hajnoczi wrote: > On Sun, May 9, 2010 at 4:23 PM, Gleb Natapov <gleb@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. > The patch assumes that all virtio-blk devices are disks and it can boot from any of virtio-blk disks if there is more then one. I am not sure CDROM can be attached via virtio-blk interface. > > + 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? > vdrive_g is freed, but desc and vq are leaked. Will fix. Thanks! -- Gleb.
next prev parent reply other threads:[~2010-05-09 16:47 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-05-09 15:23 [PATCH] Support for booting from virtio disks Gleb Natapov 2010-05-09 15:23 ` [Qemu-devel] " Gleb Natapov 2010-05-09 16:31 ` [SeaBIOS] " Stefan Hajnoczi 2010-05-09 16:31 ` [Qemu-devel] " Stefan Hajnoczi 2010-05-09 16:47 ` Gleb Natapov [this message] 2010-05-09 16:47 ` Gleb Natapov 2010-05-10 2:51 ` Kevin O'Connor 2010-05-10 2:51 ` [Qemu-devel] " Kevin O'Connor
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