Sign Up
Log In
Log In
or
Sign Up
Places
All Projects
Status Monitor
Collapse sidebar
openSUSE:Leap:15.2:Rings:1-MinimalX
qemu
s390x-adapter-routes-error-handling.patch
Overview
Repositories
Revisions
Requests
Users
Attributes
Meta
File s390x-adapter-routes-error-handling.patch of Package qemu
From: Cornelia Huck <cohuck@redhat.com> Date: Thu, 16 Jan 2020 13:10:35 +0100 Subject: s390x: adapter routes error handling Git-commit: 3c5fd8074335c67777d9391b84f97070c35d9c63 If the kernel irqchip has been disabled, we don't want the {add,release}_adapter_routes routines to call any kvm_irqchip_* interfaces, as they may rely on an irqchip actually having been created. Just take a quick exit in that case instead. If you are trying to use irqfd without a kernel irqchip, we will fail with an error. Also initialize routes->gsi[] with -1 in the virtio-ccw handling, to make sure we don't trip over other errors, either. (Nobody else uses the gsi array in that structure.) Fixes: d426d9fba8ea ("s390x/virtio-ccw: wire up irq routing and irqfds") Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-Id: <20200117111147.5006-1-cohuck@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/intc/s390_flic_kvm.c | 8 ++++++++ hw/s390x/virtio-ccw.c | 4 ++++ 2 files changed, 12 insertions(+) diff --git a/hw/intc/s390_flic_kvm.c b/hw/intc/s390_flic_kvm.c index c9ee80eaae02dea3a46bbaf82d4a..98cc15868374034d9d18b539dc42 100644 --- a/hw/intc/s390_flic_kvm.c +++ b/hw/intc/s390_flic_kvm.c @@ -331,6 +331,10 @@ static int kvm_s390_add_adapter_routes(S390FLICState *fs, int ret, i; uint64_t ind_offset = routes->adapter.ind_offset; + if (!kvm_gsi_routing_enabled()) { + return -ENOSYS; + } + for (i = 0; i < routes->num_routes; i++) { ret = kvm_irqchip_add_adapter_route(kvm_state, &routes->adapter); if (ret < 0) { @@ -358,6 +362,10 @@ static void kvm_s390_release_adapter_routes(S390FLICState *fs, { int i; + if (!kvm_gsi_routing_enabled()) { + return; + } + for (i = 0; i < routes->num_routes; i++) { if (routes->gsi[i] >= 0) { kvm_irqchip_release_virq(kvm_state, routes->gsi[i]); diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index 6580ce5907dd0b3c87bae8e04923..13f57e7b67f18c644dee4c292fdf 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -697,6 +697,7 @@ static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); SubchDev *sch; Error *err = NULL; + int i; sch = css_create_sch(ccw_dev->devno, errp); if (!sch) { @@ -717,6 +718,9 @@ static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) ccw_dev->sch = sch; dev->indicators = NULL; dev->revision = -1; + for (i = 0; i < ADAPTER_ROUTES_MAX_GSI; i++) { + dev->routes.gsi[i] = -1; + } css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); trace_virtio_ccw_new_device(
Locations
Projects
Search
Status Monitor
Help
OpenBuildService.org
Documentation
API Documentation
Code of Conduct
Contact
Support
@OBShq
Terms
openSUSE Build Service is sponsored by
The Open Build Service is an
openSUSE project
.
Sign Up
Log In
Places
Places
All Projects
Status Monitor