Introduce a Xen specific nexus that is going to be in charge for attaching Xen specific devices. --- sys/conf/files.amd64 | 1 + sys/conf/files.i386 | 1 + sys/dev/xen/console/console.c | 2 +- sys/dev/xen/timer/timer.c | 4 +- sys/dev/xen/xenpci/xenpci.c | 4 ++ sys/x86/xen/xen_nexus.c | 82 +++++++++++++++++++++++++++++++++++++++++ sys/x86/xen/xenpv.c | 1 + sys/xen/xenstore/xenstore.c | 6 +-- 8 files changed, 93 insertions(+), 8 deletions(-) create mode 100644 sys/x86/xen/xen_nexus.c diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64 index d7c98cc..f378983 100644 --- a/sys/conf/files.amd64 +++ b/sys/conf/files.amd64 _at__at_ -571,3 +571,4 _at__at_ x86/xen/xen_intr.c optional xen | xenhvm x86/xen/pv.c optional xenhvm x86/xen/pvcpu_enum.c optional xenhvm x86/xen/xenpv.c optional xenhvm +x86/xen/xen_nexus.c optional xenhvm diff --git a/sys/conf/files.i386 b/sys/conf/files.i386 index 81142e3..02887a33 100644 --- a/sys/conf/files.i386 +++ b/sys/conf/files.i386 _at__at_ -604,3 +604,4 _at__at_ x86/x86/delay.c standard x86/xen/hvm.c optional xenhvm x86/xen/xen_intr.c optional xen | xenhvm x86/xen/xenpv.c optional xen | xenhvm +x86/xen/xen_nexus.c optional xen | xenhvm diff --git a/sys/dev/xen/console/console.c b/sys/dev/xen/console/console.c index 899dffc..91538fe 100644 --- a/sys/dev/xen/console/console.c +++ b/sys/dev/xen/console/console.c _at__at_ -462,4 +462,4 _at__at_ xcons_force_flush(void) } } -DRIVER_MODULE(xc, nexus, xc_driver, xc_devclass, 0, 0); +DRIVER_MODULE(xc, xenpv, xc_driver, xc_devclass, 0, 0); diff --git a/sys/dev/xen/timer/timer.c b/sys/dev/xen/timer/timer.c index 96372ab..f16f5a5 100644 --- a/sys/dev/xen/timer/timer.c +++ b/sys/dev/xen/timer/timer.c _at__at_ -636,5 +636,5 _at__at_ static driver_t xentimer_driver = { sizeof(struct xentimer_softc), }; -DRIVER_MODULE(xentimer, nexus, xentimer_driver, xentimer_devclass, 0, 0); -MODULE_DEPEND(xentimer, nexus, 1, 1, 1); +DRIVER_MODULE(xentimer, xenpv, xentimer_driver, xentimer_devclass, 0, 0); +MODULE_DEPEND(xentimer, xenpv, 1, 1, 1); diff --git a/sys/dev/xen/xenpci/xenpci.c b/sys/dev/xen/xenpci/xenpci.c index dd2ad92..a27b54f 100644 --- a/sys/dev/xen/xenpci/xenpci.c +++ b/sys/dev/xen/xenpci/xenpci.c _at__at_ -270,6 +270,10 _at__at_ xenpci_attach(device_t dev) goto errexit; } + /* Add the xenpv device so top level Xen devices can attach */ + if (BUS_ADD_CHILD(dev, 0, "xenpv", 0) == NULL) + panic("xenpci: unable to add xenpv device"); + return (bus_generic_attach(dev)); errexit: diff --git a/sys/x86/xen/xen_nexus.c b/sys/x86/xen/xen_nexus.c new file mode 100644 index 0000000..d34e333 --- /dev/null +++ b/sys/x86/xen/xen_nexus.c _at__at_ -0,0 +1,82 _at__at_ +/* + * Copyright (c) 2013 Roger Pau Monné <roger.pau_at_citrix.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/sysctl.h> +#include <sys/systm.h> +#include <sys/smp.h> + +#include <machine/nexusvar.h> + +#include <xen/xen-os.h> + +/* + * Xen nexus(4) driver. + */ +static int +nexus_xen_probe(device_t dev) +{ + if (!xen_pv_domain()) + return (ENXIO); + + return (BUS_PROBE_DEFAULT); +} + +static int +nexus_xen_attach(device_t dev) +{ + + nexus_init_resources(); + bus_generic_probe(dev); + + /* + * Explicitly add the xenpv device here. Other top level + * Xen devices will attach to this. + */ + if (BUS_ADD_CHILD(dev, 0, "xenpv", 0) == NULL) + panic("xenpv: could not attach"); + bus_generic_attach(dev); + return 0; +} + +static device_method_t nexus_xen_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, nexus_xen_probe), + DEVMETHOD(device_attach, nexus_xen_attach), + + { 0, 0 } +}; + +DEFINE_CLASS_1(nexus, nexus_xen_driver, nexus_xen_methods, 1, nexus_driver); +static devclass_t nexus_devclass; + +DRIVER_MODULE(nexus_xen, root, nexus_xen_driver, nexus_devclass, 0, 0); diff --git a/sys/x86/xen/xenpv.c b/sys/x86/xen/xenpv.c index 41d674f..7bd810b 100644 --- a/sys/x86/xen/xenpv.c +++ b/sys/x86/xen/xenpv.c _at__at_ -90,6 +90,7 _at__at_ static driver_t xenpv_driver = { static devclass_t xenpv_devclass; DRIVER_MODULE(xenpv, nexus, xenpv_driver, xenpv_devclass, 0, 0); +DRIVER_MODULE(xenpv, xenpci, xenpv_driver, xenpv_devclass, 0, 0); /* * Dummy Xen cpu device diff --git a/sys/xen/xenstore/xenstore.c b/sys/xen/xenstore/xenstore.c index d404862..b5cf413 100644 --- a/sys/xen/xenstore/xenstore.c +++ b/sys/xen/xenstore/xenstore.c _at__at_ -1261,11 +1261,7 _at__at_ static device_method_t xenstore_methods[] = { DEFINE_CLASS_0(xenstore, xenstore_driver, xenstore_methods, 0); static devclass_t xenstore_devclass; -#ifdef XENHVM -DRIVER_MODULE(xenstore, xenpci, xenstore_driver, xenstore_devclass, 0, 0); -#else -DRIVER_MODULE(xenstore, nexus, xenstore_driver, xenstore_devclass, 0, 0); -#endif +DRIVER_MODULE(xenstore, xenpv, xenstore_driver, xenstore_devclass, 0, 0); /*------------------------------- Sysctl Data --------------------------------*/ /* XXX Shouldn't the node be somewhere else? */ -- 1.7.7.5 (Apple Git-26)Received on Thu Jan 02 2014 - 14:55:29 UTC
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