| Message ID | 160251600753.796881.11787439223917154767.stgit@bahia.lan (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spapr: Fix and cleanups for sPAPR CPU core | expand |
On Mon, 12 Oct 2020 17:20:07 +0200 Greg Kurz <groug@kaod.org> wrote: > spapr_cpu_core_realize() has an err_unrealize label which partially > duplicates the code of spapr_cpu_core_realize(). > > Let's make spapr_cpu_core_unrealize() idempotent and call it instead. > The registration and unregistration of the reset handler are moved > around to simplify the code even more. > > Signed-off-by: Greg Kurz <groug@kaod.org> > --- Hmmm... this one need some more care because spapr_unrealize_vcpu() because isn't idempotent. Please ignore it. > hw/ppc/spapr_cpu_core.c | 21 +++++++++------------ > 1 file changed, 9 insertions(+), 12 deletions(-) > > diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c > index cffd74f542ba..e3fd81eb9741 100644 > --- a/hw/ppc/spapr_cpu_core.c > +++ b/hw/ppc/spapr_cpu_core.c > @@ -227,11 +227,13 @@ static void spapr_cpu_core_unrealize(DeviceState *dev) > CPUCore *cc = CPU_CORE(dev); > int i; > > - qemu_unregister_reset(spapr_cpu_core_reset_handler, sc); > - > for (i = 0; i < cc->nr_threads; i++) { > - spapr_unrealize_vcpu(sc->threads[i], sc); > + if (sc->threads[i]) { > + spapr_unrealize_vcpu(sc->threads[i], sc); > + } > } > + > + qemu_unregister_reset(spapr_cpu_core_reset_handler, sc); > } > > static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr, > @@ -326,19 +328,14 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp) > } > } > > + qemu_register_reset(spapr_cpu_core_reset_handler, sc); > + > for (j = 0; j < cc->nr_threads; j++) { > if (!spapr_realize_vcpu(sc->threads[j], spapr, sc, errp)) { > - goto err_unrealize; > + spapr_cpu_core_unrealize(dev); > + return; > } > } > - > - qemu_register_reset(spapr_cpu_core_reset_handler, sc); > - return; > - > -err_unrealize: > - while (--j >= 0) { > - spapr_unrealize_vcpu(sc->threads[j], sc); > - } > } > > static Property spapr_cpu_core_properties[] = { > > >
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index cffd74f542ba..e3fd81eb9741 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -227,11 +227,13 @@ static void spapr_cpu_core_unrealize(DeviceState *dev) CPUCore *cc = CPU_CORE(dev); int i; - qemu_unregister_reset(spapr_cpu_core_reset_handler, sc); - for (i = 0; i < cc->nr_threads; i++) { - spapr_unrealize_vcpu(sc->threads[i], sc); + if (sc->threads[i]) { + spapr_unrealize_vcpu(sc->threads[i], sc); + } } + + qemu_unregister_reset(spapr_cpu_core_reset_handler, sc); } static bool spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr, @@ -326,19 +328,14 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp) } } + qemu_register_reset(spapr_cpu_core_reset_handler, sc); + for (j = 0; j < cc->nr_threads; j++) { if (!spapr_realize_vcpu(sc->threads[j], spapr, sc, errp)) { - goto err_unrealize; + spapr_cpu_core_unrealize(dev); + return; } } - - qemu_register_reset(spapr_cpu_core_reset_handler, sc); - return; - -err_unrealize: - while (--j >= 0) { - spapr_unrealize_vcpu(sc->threads[j], sc); - } } static Property spapr_cpu_core_properties[] = {
spapr_cpu_core_realize() has an err_unrealize label which partially duplicates the code of spapr_cpu_core_realize(). Let's make spapr_cpu_core_unrealize() idempotent and call it instead. The registration and unregistration of the reset handler are moved around to simplify the code even more. Signed-off-by: Greg Kurz <groug@kaod.org> --- hw/ppc/spapr_cpu_core.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-)