diff options
| author | Mark McLoughlin <markmc@redhat.com> | 2009-10-22 17:43:37 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-10-27 12:29:00 -0500 |
| commit | baf74c95802347e218721dbaa331997e11fbf903 (patch) | |
| tree | 3f413f960230cbfec68d46e790aed12fde9c9810 /qemu-options.hx | |
| parent | 424a7f9674bb801c62b7855a8132d14ef25a36e1 (diff) | |
net: add a vnet_hdr=on|off parameter
This allows people to disable the IFF_VNET_HDR flag, e.g. for debugging
purposes or if they know they may migrate the guest to a machine without
IFF_VNET_HDR support.
It also allows making the lack of IFF_VNET_HDR support an error
condition, e.g. in the case where a guest is being migrated from a host
which does support it.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index c745e0ca26..d78b738c77 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -810,7 +810,7 @@ DEF("net", HAS_ARG, QEMU_OPTION_net, "-net tap[,vlan=n][,name=str],ifname=name\n" " connect the host TAP network interface to VLAN 'n'\n" #else - "-net tap[,vlan=n][,name=str][,fd=h][,ifname=name][,script=file][,downscript=dfile][,sndbuf=nbytes]\n" + "-net tap[,vlan=n][,name=str][,fd=h][,ifname=name][,script=file][,downscript=dfile][,sndbuf=nbytes][,vnet_hdr=on|off]\n" " connect the host TAP network interface to VLAN 'n' and use the\n" " network scripts 'file' (default=%s)\n" " and 'dfile' (default=%s);\n" @@ -818,6 +818,8 @@ DEF("net", HAS_ARG, QEMU_OPTION_net, " use 'fd=h' to connect to an already opened TAP interface\n" " use 'sndbuf=nbytes' to limit the size of the send buffer; the\n" " default of 'sndbuf=1048576' can be disabled using 'sndbuf=0'\n" + " use vnet_hdr=off to avoid enabling the IFF_VNET_HDR tap flag; use\n" + " vnet_hdr=on to make the lack of IFF_VNET_HDR support an error condition\n" #endif "-net socket[,vlan=n][,name=str][,fd=h][,listen=[host]:port][,connect=host:port]\n" " connect the vlan 'n' to another VLAN using a socket connection\n" |