On 01/18/2012 09:01 AM, Martin Kletzander wrote: > There was missing capability for blkiotune and thus specifying these > settings caused libvirt to run qemu with invalid parameters and then > reporting qemu error instead of the standard libvirt one. > --- > src/qemu/qemu_capabilities.c | 6 ++++++ > src/qemu/qemu_capabilities.h | 2 ++ > src/qemu/qemu_command.c | 13 +++++++++++++ > tests/qemuxml2argvtest.c | 2 +- > 4 files changed, 22 insertions(+), 1 deletions(-) >
> @@ -1031,6 +1033,10 @@ qemuCapsComputeCmdFlags(const char *help, > qemuCapsSet(flags, QEMU_CAPS_DRIVE_AIO); > if (strstr(help, "copy-on-read=on|off")) > qemuCapsSet(flags, QEMU_CAPS_DRIVE_COPY_ON_READ); > + if (strstr(help, "bps=") && strstr(help, "iops=") && > + strstr(help, "bps_rd=") && strstr(help, "bps_wr=") && > + strstr(help, "iops_rd=") && strstr(help, "iops_wr=")) > + qemuCapsSet(flags, QEMU_CAPS_DRIVE_IOTUNE); It should be sufficient to check for just one of these strings, rather than all 6, since support for all 6 should be added in the same qemu commit. Meanwhile, since qemu 1.0 does not support this feature, can you point to a commit id that will become part of qemu 1.1, and which actually confirms that this will be in the -help output? -- Eric Blake ebl...@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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