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authorPeter Maydell <peter.maydell@linaro.org>2018-02-07 20:40:36 +0000
committerPeter Maydell <peter.maydell@linaro.org>2018-02-07 20:40:36 +0000
commit7b213bb4755dc99e447c19c532768ef5105b9771 (patch)
treecc13202d4cc96c90b7ff3964a45343c6ab8f797e /hw/vfio/common.c
parent17a5bbb44df9a4a79166332bc26e2d8ca6bd8fa8 (diff)
parent19306806ae30b7fb5fe61a9130c6995402acad00 (diff)
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* socket option parsing fix (Daniel) * SCSI fixes (Fam) * Readline double-free fix (Greg) * More HVF attribution fixes (Izik) * WHPX (Windows Hypervisor Platform Extensions) support (Justin) * POLLHUP handler (Klim) * ivshmem fixes (Ladi) * memfd memory backend (Marc-André) * improved error message (Marcelo) * Memory fixes (Peter Xu, Zhecheng) * Remove obsolete code and comments (Peter M.) * qdev API improvements (Philippe) * Add CONFIG_I2C switch (Thomas) # gpg: Signature made Wed 07 Feb 2018 15:24:08 GMT # gpg: using RSA key BFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (47 commits) Add the WHPX acceleration enlightenments Introduce the WHPX impl Add the WHPX vcpu API Add the Windows Hypervisor Platform accelerator. tests/test-filter-redirector: move close() tests: use memfd in vhost-user-test vhost-user-test: make read-guest-mem setup its own qemu tests: keep compiling failing vhost-user tests Add memfd based hostmem memfd: add hugetlbsize argument memfd: add hugetlb support memfd: add error argument, instead of perror() cpus: join thread when removing a vCPU cpus: hvf: unregister thread with RCU cpus: tcg: unregister thread with RCU, fix exiting of loop on unplug cpus: dummy: unregister thread with RCU, exit loop on unplug cpus: kvm: unregister thread with RCU cpus: hax: register/unregister thread with RCU, exit loop on unplug ivshmem: Disable irqfd on device reset ivshmem: Improve MSI irqfd error handling ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org> # Conflicts: # cpus.c
Diffstat (limited to 'hw/vfio/common.c')
-rw-r--r--hw/vfio/common.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index ee9240daeb..f895e3c335 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1187,19 +1187,27 @@ static void vfio_disconnect_container(VFIOGroup *group)
{
VFIOContainer *container = group->container;
+ QLIST_REMOVE(group, container_next);
+ group->container = NULL;
+
+ /*
+ * Explicitly release the listener first before unset container,
+ * since unset may destroy the backend container if it's the last
+ * group.
+ */
+ if (QLIST_EMPTY(&container->group_list)) {
+ vfio_listener_release(container);
+ }
+
if (ioctl(group->fd, VFIO_GROUP_UNSET_CONTAINER, &container->fd)) {
error_report("vfio: error disconnecting group %d from container",
group->groupid);
}
- QLIST_REMOVE(group, container_next);
- group->container = NULL;
-
if (QLIST_EMPTY(&container->group_list)) {
VFIOAddressSpace *space = container->space;
VFIOGuestIOMMU *giommu, *tmp;
- vfio_listener_release(container);
QLIST_REMOVE(container, next);
QLIST_FOREACH_SAFE(giommu, &container->giommu_list, giommu_next, tmp) {