Re: [PATCH 8/9] qemu, libxl, hypervisor: use virDomainDriverNodeDeviceDetachFlags() helper

libxlNodeDeviceDetachFlags() and qemuNodeDeviceDetachFlags() are mostly equal, aside from how the virHostdevmanager pointer is retrieved and the PCI stub driver used. Now that the PCI stub driver verification is done early in both functions, we can use the virDomainDriverNodeDeviceDetachFlags() helper to reduce code duplication between them. 'driverName' is checked inside the helper to set the appropriate stub driver. Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com&gt; --- src/hypervisor/domain_driver.c | 60 ++++++++++++++++++++++++++++++++++ src/hypervisor/domain_driver.h | 4 +++ src/libvirt_private.syms | 1 + src/libxl/libxl_driver.c | 54 ++---------------------------- src/qemu/qemu_driver.c | 49 ++------------------------- 5 files changed, 71 insertions(+), 97 deletions(-) diff --git a/src/hypervisor/domain_driver.c b/src/hypervisor/domain_driver.c index ea4c3c9466..6ee74d6dff 100644 --- a/src/hypervisor/domain_driver.c +++ b/src/hypervisor/domain_driver.c @@ -459,3 +459,63 @@ virDomainDriverNodeDeviceReAttach(virNodeDevicePtr dev, return virHostdevPCINodeDeviceReAttach(hostdevMgr, pci); } + +int +virDomainDriverNodeDeviceDetachFlags(virNodeDevicePtr dev, + virHostdevManagerPtr hostdevMgr, + const char *driverName)

+{ + virPCIDevicePtr pci = NULL; + virPCIDeviceAddress devAddr; + int ret = -1; + virNodeDeviceDefPtr def = NULL; + g_autofree char *xml = NULL; + virConnectPtr nodeconn = NULL; + virNodeDevicePtr nodedev = NULL; + + if (!driverName) + return -1; + + if (!(nodeconn = virGetConnectNodeDev())) + goto cleanup; + + /* 'dev' is associated with virConnectPtr, so for split + * daemons, we need to get a copy that is associated with + * the virnodedevd daemon. */ + if (!(nodedev = virNodeDeviceLookupByName(nodeconn, + virNodeDeviceGetName(dev)))) + goto cleanup; + + xml = virNodeDeviceGetXMLDesc(nodedev, 0); + if (!xml) + goto cleanup; + + def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL); + if (!def) + goto cleanup; + + /* ACL check must happen against original 'dev', + * not the new 'nodedev' we acquired */ + if (virNodeDeviceDetachFlagsEnsureACL(dev->conn, def) < 0) + goto cleanup; +

+ if (virDomainDriverNodeDeviceGetPCIInfo(def, &devAddr) < 0) + goto cleanup; + + pci = virPCIDeviceNew(&devAddr); + if (!pci) + goto cleanup; + + if (STREQ(driverName, "vfio")) + virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_VFIO); + else if (STREQ(driverName, "xen")) + virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_XEN); + + ret = virHostdevPCINodeDeviceDetach(hostdevMgr, pci); + cleanup: + virPCIDeviceFree(pci); + virNodeDeviceDefFree(def); + virObjectUnref(nodedev); + virObjectUnref(nodeconn); + return ret; +}