[v2] qemu: Add support for -blockdev

[libvirt] [PATCHv2 20/62] qemu: process: clear QEMU_CAPS_BLOCKDEV for VMs with SD card

Posted by Peter Krempa 7 years, 5 months ago

SD cards are currently passed by using -drive only which would not be
compatible with using -blockdev fully.

Clear QEMU_CAPS_BLOCKDEV if the VM has such devices.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
---
 src/qemu/qemu_process.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index c1a8dfda29..38e88404aa 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -5882,6 +5882,15 @@ qemuProcessPrepareDomain(virQEMUDriverPtr driver,

     qemuProcessPrepareAllowReboot(vm);

+    /* clear the 'blockdev' capability for VMs which have disks that need
+     * -drive or which have floppies where we can't reliably get the QOM path */
+    for (i = 0; i < vm->def->ndisks; i++) {
+        if (qemuDiskBusNeedsDriveArg(vm->def->disks[i]->bus)) {
+            virQEMUCapsClear(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
+            break;
+        }
+    }
+
     /*
      * Normally PCI addresses are assigned in the virDomainCreate
      * or virDomainDefine methods. We might still need to assign
-- 
2.16.2

--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list

Re: [libvirt] [PATCHv2 20/62] qemu: process: clear QEMU_CAPS_BLOCKDEV for VMs with SD card

Posted by Ján Tomko 7 years, 5 months ago

On Mon, Aug 13, 2018 at 05:59:54PM +0200, Peter Krempa wrote:
>SD cards are currently passed by using -drive only which would not be
>compatible with using -blockdev fully.
>
>Clear QEMU_CAPS_BLOCKDEV if the VM has such devices.
>
>Signed-off-by: Peter Krempa <pkrempa@redhat.com>
>---
> src/qemu/qemu_process.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>

Reviewed-by: Ján Tomko <jtomko@redhat.com>

Jano
--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list