diff options
author | Greg Kurz <groug@kaod.org> | 2020-11-21 00:42:06 +0100 |
---|---|---|
committer | David Gibson <david@gibson.dropbear.id.au> | 2020-12-14 15:50:55 +1100 |
commit | 9a07069958705f426180829f807f0b84ec295b93 (patch) | |
tree | 5daab708a5a07be4526f893e3ec9ced75da29adc /hw/ppc | |
parent | f5598c92b84047c395836985715ff62c856ff2fe (diff) | |
download | qemu-9a07069958705f426180829f807f0b84ec295b93.zip qemu-9a07069958705f426180829f807f0b84ec295b93.tar.gz qemu-9a07069958705f426180829f807f0b84ec295b93.tar.bz2 |
spapr: Do PHB hoplug sanity check at pre-plug
We currently detect that a PHB index is already in use at plug time.
But this can be decteted at pre-plug in order to error out earlier.
This allows to pass &error_abort to spapr_drc_attach() and to end
up with a plug handler that doesn't need to report errors anymore.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20201120234208.683521-8-groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc')
-rw-r--r-- | hw/ppc/spapr.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 28d266f..ac115b0 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3886,6 +3886,7 @@ static bool spapr_phb_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, SpaprPhbState *sphb = SPAPR_PCI_HOST_BRIDGE(dev); SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr); const unsigned windows_supported = spapr_phb_windows_supported(sphb); + SpaprDrc *drc; if (dev->hotplugged && !smc->dr_phb_enabled) { error_setg(errp, "PHB hotplug not supported for this machine"); @@ -3897,6 +3898,12 @@ static bool spapr_phb_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, return false; } + drc = spapr_drc_by_id(TYPE_SPAPR_DRC_PHB, sphb->index); + if (drc && drc->dev) { + error_setg(errp, "PHB %d already attached", sphb->index); + return false; + } + /* * This will check that sphb->index doesn't exceed the maximum number of * PHBs for the current machine type. @@ -3910,8 +3917,7 @@ static bool spapr_phb_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, errp); } -static void spapr_phb_plug(HotplugHandler *hotplug_dev, DeviceState *dev, - Error **errp) +static void spapr_phb_plug(HotplugHandler *hotplug_dev, DeviceState *dev) { SpaprMachineState *spapr = SPAPR_MACHINE(OBJECT(hotplug_dev)); SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr); @@ -3927,9 +3933,8 @@ static void spapr_phb_plug(HotplugHandler *hotplug_dev, DeviceState *dev, /* hotplug hooks should check it's enabled before getting this far */ assert(drc); - if (!spapr_drc_attach(drc, dev, errp)) { - return; - } + /* spapr_phb_pre_plug() already checked the DRC is attachable */ + spapr_drc_attach(drc, dev, &error_abort); if (hotplugged) { spapr_hotplug_req_add_by_index(drc); @@ -3997,7 +4002,7 @@ static void spapr_machine_device_plug(HotplugHandler *hotplug_dev, } else if (object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_CPU_CORE)) { spapr_core_plug(hotplug_dev, dev, errp); } else if (object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_PCI_HOST_BRIDGE)) { - spapr_phb_plug(hotplug_dev, dev, errp); + spapr_phb_plug(hotplug_dev, dev); } else if (object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_TPM_PROXY)) { spapr_tpm_proxy_plug(hotplug_dev, dev, errp); } |