diff options
| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2011-11-17 13:40:32 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-12-05 14:51:38 +0100 |
| commit | fb0490f69feb96b7e92457f176dc834ff0b00b09 (patch) | |
| tree | 78f832101d9988753dac64f1f47946f2fa306a97 /hmp-commands.hx | |
| parent | ab1859218a95977dc6881fcccce328d8146a6bdb (diff) | |
| download | qemu-fb0490f69feb96b7e92457f176dc834ff0b00b09.tar.gz | |
block: add -drive copy-on-read=on|off
This patch adds the -drive copy-on-read=on|off command-line option:
copy-on-read=on|off
copy-on-read is "on" or "off" and enables whether to copy read backing
file sectors into the image file. Copy-on-read avoids accessing the
same backing file sectors repeatedly and is useful when the backing
file is over a slow network. By default copy-on-read is off.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hmp-commands.hx')
| -rw-r--r-- | hmp-commands.hx | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx index f8d855e3be..79a919526d 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -860,9 +860,10 @@ ETEXI .args_type = "pci_addr:s,opts:s", .params = "[[<domain>:]<bus>:]<slot>\n" "[file=file][,if=type][,bus=n]\n" - "[,unit=m][,media=d][index=i]\n" + "[,unit=m][,media=d][,index=i]\n" "[,cyls=c,heads=h,secs=s[,trans=t]]\n" - "[snapshot=on|off][,cache=on|off]", + "[,snapshot=on|off][,cache=on|off]\n" + "[,readonly=on|off][,copy-on-read=on|off]", .help = "add drive to PCI storage controller", .mhandler.cmd = drive_hot_add, }, |