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authorAntonios Motakis <a.motakis@virtualopensystems.com>2015-03-16 23:08:54 +0300
committerAlex Williamson <alex.williamson@redhat.com>2015-03-16 23:08:54 +0300
commit42ac9bd18d4fc28c36c7927847f0f6e90ecd7710 (patch)
tree7250c8a8186ac25d171533c71037968077ef1cf1 /drivers
parent7e992d692750b2938224eb43fee907181d92a602 (diff)
downloadlinux-42ac9bd18d4fc28c36c7927847f0f6e90ecd7710.tar.xz
vfio: initialize the virqfd workqueue in VFIO generic code
Now we have finally completely decoupled virqfd from VFIO_PCI. We can initialize it from the VFIO generic code, in order to safely use it from multiple independent VFIO bus drivers. Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com> Signed-off-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Reviewed-by: Eric Auger <eric.auger@linaro.org> Tested-by: Eric Auger <eric.auger@linaro.org> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/vfio/Makefile4
-rw-r--r--drivers/vfio/pci/Makefile3
-rw-r--r--drivers/vfio/pci/vfio_pci.c8
-rw-r--r--drivers/vfio/vfio.c8
4 files changed, 12 insertions, 11 deletions
diff --git a/drivers/vfio/Makefile b/drivers/vfio/Makefile
index dadf0ca146ef..d798b0959603 100644
--- a/drivers/vfio/Makefile
+++ b/drivers/vfio/Makefile
@@ -1,4 +1,6 @@
-obj-$(CONFIG_VFIO) += vfio.o
+vfio_core-y := vfio.o virqfd.o
+
+obj-$(CONFIG_VFIO) += vfio_core.o
obj-$(CONFIG_VFIO_IOMMU_TYPE1) += vfio_iommu_type1.o
obj-$(CONFIG_VFIO_IOMMU_SPAPR_TCE) += vfio_iommu_spapr_tce.o
obj-$(CONFIG_VFIO_SPAPR_EEH) += vfio_spapr_eeh.o
diff --git a/drivers/vfio/pci/Makefile b/drivers/vfio/pci/Makefile
index c7c864436896..131079255fd9 100644
--- a/drivers/vfio/pci/Makefile
+++ b/drivers/vfio/pci/Makefile
@@ -1,5 +1,4 @@
-vfio-pci-y := vfio_pci.o vfio_pci_intrs.o vfio_pci_rdwr.o vfio_pci_config.o \
- ../virqfd.o
+vfio-pci-y := vfio_pci.o vfio_pci_intrs.o vfio_pci_rdwr.o vfio_pci_config.o
obj-$(CONFIG_VFIO_PCI) += vfio-pci.o
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 668d37c730bf..2f865d07df90 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -1030,7 +1030,6 @@ put_devs:
static void __exit vfio_pci_cleanup(void)
{
pci_unregister_driver(&vfio_pci_driver);
- vfio_virqfd_exit();
vfio_pci_uninit_perm_bits();
}
@@ -1043,11 +1042,6 @@ static int __init vfio_pci_init(void)
if (ret)
return ret;
- /* Start the virqfd cleanup handler */
- ret = vfio_virqfd_init();
- if (ret)
- goto out_virqfd;
-
/* Register and scan for devices */
ret = pci_register_driver(&vfio_pci_driver);
if (ret)
@@ -1056,8 +1050,6 @@ static int __init vfio_pci_init(void)
return 0;
out_driver:
- vfio_virqfd_exit();
-out_virqfd:
vfio_pci_uninit_perm_bits();
return ret;
}
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 4cde85501444..23ba12afe01f 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1553,6 +1553,11 @@ static int __init vfio_init(void)
if (ret)
goto err_cdev_add;
+ /* Start the virqfd cleanup handler used by some VFIO bus drivers */
+ ret = vfio_virqfd_init();
+ if (ret)
+ goto err_virqfd;
+
pr_info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
/*
@@ -1565,6 +1570,8 @@ static int __init vfio_init(void)
return 0;
+err_virqfd:
+ cdev_del(&vfio.group_cdev);
err_cdev_add:
unregister_chrdev_region(vfio.group_devt, MINORMASK);
err_alloc_chrdev:
@@ -1579,6 +1586,7 @@ static void __exit vfio_cleanup(void)
{
WARN_ON(!list_empty(&vfio.group_list));
+ vfio_virqfd_exit();
idr_destroy(&vfio.group_idr);
cdev_del(&vfio.group_cdev);
unregister_chrdev_region(vfio.group_devt, MINORMASK);