debuggers.hg

changeset 19674:0f752c773497

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stubdom: 'file' based disk sharing

Allow 'file' based disks, that are blkback based disks, to be shared
between the guest domain and the stubdom. It does so exploiting the
same exception introduced in the previous patch "stubdoms phy disks
sharing". Now we can remove the hack in stubdom-dm that forces "file"
disks to be opened using blktap instead of blkback.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Tue May 26 09:50:35 2009 +0100 (2009-05-26)
parents 85d6849bdcd9
children 97f2e7c576ab
files stubdom/stubdom-dm tools/hotplug/Linux/block
line diff
     1.1 --- a/stubdom/stubdom-dm	Tue May 26 09:49:19 2009 +0100
     1.2 +++ b/stubdom/stubdom-dm	Tue May 26 09:50:35 2009 +0100
     1.3 @@ -114,10 +114,6 @@ do
     1.4      vbd_dev=`xenstore-read $i/dev`
     1.5      vbd_front=`xenstore-read $i/frontend`
     1.6      vbd_devtype=`xenstore-read $vbd_front/device-type`
     1.7 -    if [ $vbd_type = "file" ]
     1.8 -    then
     1.9 -        vbd_type="tap:aio"
    1.10 -    fi
    1.11      if [ $j -ne 0 ]
    1.12      then
    1.13          echo -n "," >> /etc/xen/stubdoms/$domname-dm

     2.1 --- a/tools/hotplug/Linux/block	Tue May 26 09:49:19 2009 +0100
     2.2 +++ b/tools/hotplug/Linux/block	Tue May 26 09:50:35 2009 +0100
     2.3 @@ -202,13 +202,13 @@ case "$command" in
     2.4        p=$(xenstore_read "$XENBUS_PATH/params")
     2.5        mode=$(xenstore_read "$XENBUS_PATH/mode")
     2.6      fi
     2.7 +    FRONTEND_ID=$(xenstore_read "$XENBUS_PATH/frontend-id")
     2.8 +    FRONTEND_UUID=$(xenstore_read_default \
     2.9 +            "/local/domain/$FRONTEND_ID/vm" 'unknown')
    2.10  
    2.11      case $t in 
    2.12        phy)
    2.13          dev=$(expand_dev $p)
    2.14 -        FRONTEND_ID=$(xenstore_read "$XENBUS_PATH/frontend-id")
    2.15 -        FRONTEND_UUID=$(xenstore_read_default \
    2.16 -            "/local/domain/$FRONTEND_ID/vm" 'unknown')
    2.17  
    2.18          if [ -L "$dev" ]
    2.19          then