From fb0490f69feb96b7e92457f176dc834ff0b00b09 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Thu, 17 Nov 2011 13:40:32 +0000 Subject: 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 Signed-off-by: Kevin Wolf --- hmp-commands.hx | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'hmp-commands.hx') diff --git a/hmp-commands.hx b/hmp-commands.hx index f8d855e..79a9195 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -860,9 +860,10 @@ ETEXI .args_type = "pci_addr:s,opts:s", .params = "[[:]:]\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, }, -- cgit v1.1