Re: [libvirt] [PATCH V3] enhance capabilities mode hostdev process

hostdev has mode "capabilities" for LXC, from formatdomain.html: " Block / character devices from the host can be passed through to the guest using the hostdev element. This is only possible with container based virtualization. since after 1.0.1 for LXC " So forbid capabilities mode hostdev if domain is not LXC.

The affected files are: * src/libxl/libxl_domain.c * src/openvz/openvz_driver.c * src/qemu/qemu_domain.c * src/uml/uml_driver.c * src/xen/xen_driver.c * src/xenapi/xenapi_driver.c There are some drivers lack function devicesPostParseCallback(), like: vbox, bhyve, and so on. V3: move the hostdev checking to devicesPostParseCallback(), this is more reasonable to check it in define phase, and implement in each driver. V2: move the hostdev checking to qemuBuildCommandLine().

Signed-off-by: Jincheng Miao <jmiao(a)redhat.com&gt; ---

src/libxl/libxl_domain.c | 8 ++++++++ src/openvz/openvz_driver.c | 9 +++++++++ src/qemu/qemu_domain.c | 9 +++++++++ src/uml/uml_driver.c | 9 +++++++++ src/xen/xen_driver.c | 9 +++++++++ src/xenapi/xenapi_driver.c | 9 +++++++++ 6 files changed, 53 insertions(+) diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c index 73242ac..96f3b88 100644 --- a/src/libxl/libxl_domain.c +++ b/src/libxl/libxl_domain.c @@ -485,6 +485,14 @@ libxlDomainDeviceDefPostParse(virDomainDeviceDefPtr dev, if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) { virDomainHostdevDefPtr hostdev = dev->data.hostdev; + /* forbid capabilities mode hostdev in this kind of hypervisor */ + if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_CAPABILITIES) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Unsupported capabilities mode hostdev in %s"), + virDomainVirtTypeToString(def->virtType));