s390x/tcg: fix CPU hotplug with single-threaded TCG
authorDavid Hildenbrand <david@redhat.com>
Wed, 27 Jun 2018 13:44:10 +0000 (15:44 +0200)
committerCornelia Huck <cohuck@redhat.com>
Mon, 2 Jul 2018 08:37:38 +0000 (10:37 +0200)
commitd66b43c896f89d610f8738169db8e10e63a3a9e6
tree0860a2437e7ded2e60731d7202bb12a7f3675ea1
parent7c12f710bad60dc7e509da4e80c77e952ef0490c
s390x/tcg: fix CPU hotplug with single-threaded TCG

run_on_cpu() doesn't seem to work reliably until the CPU has been fully
created if the single-threaded TCG main loop is already running.

Therefore, hotplugging a CPU under single-threaded TCG does currently
not work. We should use the direct call instead of going via
run_on_cpu().

So let's use run_on_cpu() for KVM only - KVM requires it due to the initial
CPU reset ioctl. As a nice side effect, we get rid of the ifdef.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180627134410.4901-10-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
target/s390x/cpu.c