Hi Paolo and thanks for your quick reply, I tried editing (virsh edit) the domain's XML and put the XML excerpt you gave me everywhere but with no success. The moment I exit the edit mode the text was gone (I guess it didn't pass some sort of sanity and that's why it was automatically erased). What am I doing wrong? Naor -----Original Message----- From: Paolo Bonzini [mailto:paolo.bonzini@xxxxxxxxx] On Behalf Of Paolo Bonzini Sent: Tuesday, July 16, 2013 9:12 AM To: Naor Shlomo Cc: kvm@xxxxxxxxxxxxxxx Subject: Re: Disabling mergeable rx buffers for the guest Il 16/07/2013 07:09, Naor Shlomo ha scritto: > Hi, > > I am trying to disable the mergeable rx buffers for a Linux guest but I am currently unable to do so. > > I tried looking in the code of libvirt in order to find the "-global virtio-net-pci.mrg_rxbuf=off" but the only globals configured are: > PIIX4_PM.disable_s*, isa-fdc.drive, isa-fdc.bootindex, ram_size and vram_size > > Is there a way to configure the XML configuration for the domain and disable the mergeable buffers? > If not, is there a way to somehow do it from the guest? (I don't want to mess with the host) You can use something like this: <qemu:commandline> <qemu:arg value='-global'/> <qemu:env name='mrg_rxbuf' value='off'/> </qemu:commandline> Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
