On 06/06/2017 20:19, Roman Kagan wrote: > Wrap the bulk of kvm_cpu_exec with cpu_exec_start/end, so that kvm > version can also enjoy performing certain operations while all vCPUs are > quiescent. > > Signed-off-by: Roman Kagan <rka...@virtuozzo.com> > --- > kvm-all.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/kvm-all.c b/kvm-all.c > index 494b925..85668fb 100644 > --- a/kvm-all.c > +++ b/kvm-all.c > @@ -1974,6 +1974,7 @@ int kvm_cpu_exec(CPUState *cpu) > } > > qemu_mutex_unlock_iothread(); > + cpu_exec_start(cpu); > > do { > MemTxAttrs attrs; > @@ -2103,6 +2104,7 @@ int kvm_cpu_exec(CPUState *cpu) > } > } while (ret == 0); > > + cpu_exec_end(cpu); > qemu_mutex_lock_iothread(); > > if (ret < 0) { >
This patch caught my eye, I'm applying it right now. Paolo