On Thu, Dec 02, 2021 at 09:53:35 +0100, Michal Privoznik wrote: > Generating command line is pretty easy - just put tb-size=XXX > onto -accel tcg part. Note, that QEMU expects the size in MiB. > > Resolves: https://gitlab.com/libvirt/libvirt/-/issues/229 > Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx> > Tested-by: Kashyap Chamarthy <kchamart@xxxxxxxxxx> > --- > src/qemu/qemu_command.c | 5 +++ > ...efault-cpu-tcg-features.x86_64-latest.args | 36 +++++++++++++++++++ > tests/qemuxml2argvtest.c | 1 + > 3 files changed, 42 insertions(+) > create mode 100644 tests/qemuxml2argvdata/x86_64-default-cpu-tcg-features.x86_64-latest.args > > diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c > index c47998aabd..4b2b558aba 100644 > --- a/src/qemu/qemu_command.c > +++ b/src/qemu/qemu_command.c > @@ -7282,6 +7282,11 @@ qemuBuildAccelCommandLine(virCommand *cmd, > switch ((virDomainVirtType)def->virtType) { > case VIR_DOMAIN_VIRT_QEMU: > virBufferAddLit(&buf, "tcg"); > + > + if (def->features[VIR_DOMAIN_FEATURE_TCG] == VIR_TRISTATE_SWITCH_ON) { && tb-size > 0) { > + virBufferAsprintf(&buf, ",tb-size=%llu", > + def->tcg_features->tb_cache >> 10); > + } > break; > > case VIR_DOMAIN_VIRT_KVM::
