hyperv/vmbus: Reorganize vmbus device tree
For GEN1 Hyper-V, vmbus is attached to pcib0, which contains the resources for PCI passthrough and SR-IOV. There is no acpi_syscontainer0 on GEN1 Hyper-V. For GEN2 Hyper-V, vmbus is attached to acpi_syscontainer0, which contains the resources for PCI passthrough and SR-IOV. There is no pcib0 on GEN2 Hyper-V. The ACPI VMBUS device now only holds its _CRS, which is empty as of this commit; its existence is mainly for upward compatibility. Device tree structure is suggested by jhb@. Tested-by: dexuan@ Collabrated-wth: dexuan@ MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D10565
This commit is contained in:
Sepherosa Ziehau
parent
7f20e1614f
commit
554e6778b6
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=318136
@ -673,6 +673,7 @@ dev/acpica/acpi_perf.c optional acpi
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dev/acpica/acpi_powerres.c optional acpi
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dev/acpica/acpi_quirk.c optional acpi
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dev/acpica/acpi_resource.c optional acpi
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dev/acpica/acpi_container.c optional acpi
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dev/acpica/acpi_smbat.c optional acpi
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dev/acpica/acpi_thermal.c optional acpi
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dev/acpica/acpi_throttle.c optional acpi
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@ -323,6 +323,7 @@ dev/hyperv/vmbus/vmbus_br.c optional hyperv
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dev/hyperv/vmbus/vmbus_chan.c optional hyperv
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dev/hyperv/vmbus/vmbus_et.c optional hyperv
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dev/hyperv/vmbus/vmbus_if.m optional hyperv
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dev/hyperv/vmbus/vmbus_res.c optional hyperv
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dev/hyperv/vmbus/vmbus_xact.c optional hyperv
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dev/hyperv/vmbus/amd64/hyperv_machdep.c optional hyperv
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dev/hyperv/vmbus/amd64/vmbus_vector.S optional hyperv
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@ -244,6 +244,7 @@ dev/hyperv/vmbus/vmbus_br.c optional hyperv
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dev/hyperv/vmbus/vmbus_chan.c optional hyperv
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dev/hyperv/vmbus/vmbus_et.c optional hyperv
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dev/hyperv/vmbus/vmbus_if.m optional hyperv
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dev/hyperv/vmbus/vmbus_res.c optional hyperv
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dev/hyperv/vmbus/vmbus_xact.c optional hyperv
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dev/hyperv/vmbus/i386/hyperv_machdep.c optional hyperv
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dev/hyperv/vmbus/i386/vmbus_vector.S optional hyperv
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166
sys/dev/acpica/acpi_container.c
Normal file
166
sys/dev/acpica/acpi_container.c
Normal file
@ -0,0 +1,166 @@
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/*-
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* Copyright (c) 2017 Microsoft Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <dev/acpica/acpivar.h>
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#include "pcib_if.h"
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ACPI_MODULE_NAME("CONTAINER")
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static int acpi_syscont_probe(device_t);
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static int acpi_syscont_attach(device_t);
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static int acpi_syscont_detach(device_t);
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static int acpi_syscont_alloc_msi(device_t, device_t,
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int count, int maxcount, int *irqs);
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static int acpi_syscont_release_msi(device_t bus, device_t dev,
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int count, int *irqs);
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static int acpi_syscont_alloc_msix(device_t bus, device_t dev,
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int *irq);
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static int acpi_syscont_release_msix(device_t bus, device_t dev,
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int irq);
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static int acpi_syscont_map_msi(device_t bus, device_t dev,
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int irq, uint64_t *addr, uint32_t *data);
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static device_method_t acpi_syscont_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, acpi_syscont_probe),
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DEVMETHOD(device_attach, acpi_syscont_attach),
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DEVMETHOD(device_detach, acpi_syscont_detach),
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/* Bus interface */
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DEVMETHOD(bus_add_child, bus_generic_add_child),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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#if __FreeBSD_version >= 1100000
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DEVMETHOD(bus_get_cpus, bus_generic_get_cpus),
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#endif
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/* pcib interface */
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DEVMETHOD(pcib_alloc_msi, acpi_syscont_alloc_msi),
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DEVMETHOD(pcib_release_msi, acpi_syscont_release_msi),
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DEVMETHOD(pcib_alloc_msix, acpi_syscont_alloc_msix),
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DEVMETHOD(pcib_release_msix, acpi_syscont_release_msix),
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DEVMETHOD(pcib_map_msi, acpi_syscont_map_msi),
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DEVMETHOD_END
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};
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static driver_t acpi_syscont_driver = {
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"acpi_syscontainer",
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acpi_syscont_methods,
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0,
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};
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static devclass_t acpi_syscont_devclass;
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DRIVER_MODULE(acpi_syscontainer, acpi, acpi_syscont_driver,
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acpi_syscont_devclass, NULL, NULL);
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MODULE_DEPEND(acpi_syscontainer, acpi, 1, 1, 1);
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static int
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acpi_syscont_probe(device_t dev)
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{
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static char *syscont_ids[] = { "ACPI0004", "PNP0A05", "PNP0A06", NULL };
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if (acpi_disabled("syscontainer") ||
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ACPI_ID_PROBE(device_get_parent(dev), dev, syscont_ids) == NULL)
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return (ENXIO);
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device_set_desc(dev, "System Container");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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acpi_syscont_attach(device_t dev)
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{
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bus_generic_probe(dev);
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return (bus_generic_attach(dev));
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}
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static int
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acpi_syscont_detach(device_t dev)
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{
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return (bus_generic_detach(dev));
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}
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static int
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acpi_syscont_alloc_msi(device_t bus, device_t dev, int count, int maxcount,
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int *irqs)
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{
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device_t parent = device_get_parent(bus);
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return (PCIB_ALLOC_MSI(device_get_parent(parent), dev, count, maxcount,
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irqs));
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}
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static int
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acpi_syscont_release_msi(device_t bus, device_t dev, int count, int *irqs)
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{
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device_t parent = device_get_parent(bus);
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return (PCIB_RELEASE_MSI(device_get_parent(parent), dev, count, irqs));
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}
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static int
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acpi_syscont_alloc_msix(device_t bus, device_t dev, int *irq)
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{
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device_t parent = device_get_parent(bus);
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return (PCIB_ALLOC_MSIX(device_get_parent(parent), dev, irq));
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}
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static int
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acpi_syscont_release_msix(device_t bus, device_t dev, int irq)
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{
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device_t parent = device_get_parent(bus);
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return (PCIB_RELEASE_MSIX(device_get_parent(parent), dev, irq));
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}
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static int
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acpi_syscont_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
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uint32_t *data)
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{
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device_t parent = device_get_parent(bus);
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return (PCIB_MAP_MSI(device_get_parent(parent), dev, irq, addr, data));
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}
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@ -537,6 +537,7 @@ acpi_pcib_acpi_attach(device_t dev)
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acpi_pcib_fetch_prt(dev, &sc->ap_prt);
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bus_generic_probe(dev);
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if (device_add_child(dev, "pci", -1) == NULL) {
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device_printf(device_get_parent(dev), "couldn't attach pci bus\n");
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#if defined(NEW_PCIB) && defined(PCI_RES_BUS)
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@ -71,6 +71,7 @@ struct vmbus_msghc {
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struct hypercall_postmsg_in mh_inprm_save;
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};
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static void vmbus_identify(driver_t *, device_t);
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static int vmbus_probe(device_t);
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static int vmbus_attach(device_t);
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static int vmbus_detach(device_t);
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@ -144,6 +145,7 @@ vmbus_chanmsg_handlers[VMBUS_CHANMSG_TYPE_MAX] = {
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static device_method_t vmbus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_identify, vmbus_identify),
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DEVMETHOD(device_probe, vmbus_probe),
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DEVMETHOD(device_attach, vmbus_attach),
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DEVMETHOD(device_detach, vmbus_detach),
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@ -190,7 +192,10 @@ static driver_t vmbus_driver = {
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static devclass_t vmbus_devclass;
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DRIVER_MODULE(vmbus, acpi, vmbus_driver, vmbus_devclass, NULL, NULL);
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DRIVER_MODULE(vmbus, pcib, vmbus_driver, vmbus_devclass, NULL, NULL);
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DRIVER_MODULE(vmbus, acpi_syscontainer, vmbus_driver, vmbus_devclass,
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NULL, NULL);
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MODULE_DEPEND(vmbus, acpi, 1, 1, 1);
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MODULE_DEPEND(vmbus, pci, 1, 1, 1);
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MODULE_VERSION(vmbus, 1);
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@ -1066,43 +1071,41 @@ vmbus_alloc_resource(device_t dev, device_t child, int type, int *rid,
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return (res);
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}
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static device_t
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get_nexus(device_t vmbus)
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{
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device_t acpi = device_get_parent(vmbus);
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device_t nexus = device_get_parent(acpi);
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return (nexus);
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}
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static int
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vmbus_alloc_msi(device_t bus, device_t dev, int count, int maxcount, int *irqs)
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{
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return (PCIB_ALLOC_MSI(get_nexus(bus), dev, count, maxcount, irqs));
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return (PCIB_ALLOC_MSI(device_get_parent(bus), dev, count, maxcount,
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irqs));
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}
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static int
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vmbus_release_msi(device_t bus, device_t dev, int count, int *irqs)
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{
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return (PCIB_RELEASE_MSI(get_nexus(bus), dev, count, irqs));
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return (PCIB_RELEASE_MSI(device_get_parent(bus), dev, count, irqs));
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}
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static int
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vmbus_alloc_msix(device_t bus, device_t dev, int *irq)
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{
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return (PCIB_ALLOC_MSIX(get_nexus(bus), dev, irq));
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return (PCIB_ALLOC_MSIX(device_get_parent(bus), dev, irq));
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}
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static int
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vmbus_release_msix(device_t bus, device_t dev, int irq)
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{
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return (PCIB_RELEASE_MSIX(get_nexus(bus), dev, irq));
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return (PCIB_RELEASE_MSIX(device_get_parent(bus), dev, irq));
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}
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static int
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vmbus_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
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uint32_t *data)
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{
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return (PCIB_MAP_MSI(get_nexus(bus), dev, irq, addr, data));
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return (PCIB_MAP_MSI(device_get_parent(bus), dev, irq, addr, data));
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}
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static uint32_t
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@ -1216,36 +1219,44 @@ vmbus_get_crs(device_t dev, device_t vmbus_dev, enum parse_pass pass)
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static void
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vmbus_get_mmio_res_pass(device_t dev, enum parse_pass pass)
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{
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device_t acpi0, pcib0 = NULL;
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device_t *children;
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int i, count;
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device_t acpi0, parent;
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/* Try to find _CRS on VMBus device */
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vmbus_get_crs(dev, dev, pass);
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parent = device_get_parent(dev);
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/* Try to find _CRS on VMBus device's parent */
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acpi0 = device_get_parent(dev);
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vmbus_get_crs(acpi0, dev, pass);
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acpi0 = device_get_parent(parent);
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if (strcmp("acpi0", device_get_nameunit(acpi0)) == 0) {
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device_t *children;
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int count;
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/* Try to locate pcib0 and find _CRS on it */
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if (device_get_children(acpi0, &children, &count) != 0)
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return;
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/*
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* Try to locate VMBUS resources and find _CRS on them.
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*/
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if (device_get_children(acpi0, &children, &count) == 0) {
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int i;
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for (i = 0; i < count; i++) {
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if (!device_is_attached(children[i]))
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continue;
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for (i = 0; i < count; ++i) {
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if (!device_is_attached(children[i]))
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continue;
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if (strcmp("pcib0", device_get_nameunit(children[i])))
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continue;
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if (strcmp("vmbus_res",
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device_get_name(children[i])) == 0)
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vmbus_get_crs(children[i], dev, pass);
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}
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free(children, M_TEMP);
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}
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pcib0 = children[i];
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break;
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/*
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* Try to find _CRS on acpi.
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*/
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vmbus_get_crs(acpi0, dev, pass);
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} else {
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device_printf(dev, "not grandchild of acpi\n");
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}
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if (pcib0)
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vmbus_get_crs(pcib0, dev, pass);
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free(children, M_TEMP);
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/*
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* Try to find _CRS on parent.
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*/
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vmbus_get_crs(parent, dev, pass);
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}
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static void
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@ -1275,18 +1286,25 @@ vmbus_free_mmio_res(device_t dev)
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}
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#endif /* NEW_PCIB */
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static void
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vmbus_identify(driver_t *driver, device_t parent)
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{
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if (device_get_unit(parent) != 0 || vm_guest != VM_GUEST_HV ||
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(hyperv_features & CPUID_HV_MSR_SYNIC) == 0)
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return;
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device_add_child(parent, "vmbus", -1);
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}
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static int
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vmbus_probe(device_t dev)
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{
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char *id[] = { "VMBUS", NULL };
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if (ACPI_ID_PROBE(device_get_parent(dev), dev, id) == NULL ||
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device_get_unit(dev) != 0 || vm_guest != VM_GUEST_HV ||
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if (device_get_unit(dev) != 0 || vm_guest != VM_GUEST_HV ||
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(hyperv_features & CPUID_HV_MSR_SYNIC) == 0)
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return (ENXIO);
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device_set_desc(dev, "Hyper-V Vmbus");
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return (BUS_PROBE_DEFAULT);
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}
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98
sys/dev/hyperv/vmbus/vmbus_res.c
Normal file
98
sys/dev/hyperv/vmbus/vmbus_res.c
Normal file
@ -0,0 +1,98 @@
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/*-
|
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* Copyright (c) 2017 Microsoft Corp.
|
||||
* 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 unmodified, 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 ``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 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>
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__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/bus.h>
|
||||
#include <sys/module.h>
|
||||
|
||||
#include <contrib/dev/acpica/include/acpi.h>
|
||||
#include <dev/acpica/acpivar.h>
|
||||
|
||||
#include <dev/hyperv/include/hyperv.h>
|
||||
|
||||
#include "acpi_if.h"
|
||||
#include "bus_if.h"
|
||||
|
||||
static int vmbus_res_probe(device_t);
|
||||
static int vmbus_res_attach(device_t);
|
||||
static int vmbus_res_detach(device_t);
|
||||
|
||||
static device_method_t vmbus_res_methods[] = {
|
||||
/* Device interface */
|
||||
DEVMETHOD(device_probe, vmbus_res_probe),
|
||||
DEVMETHOD(device_attach, vmbus_res_attach),
|
||||
DEVMETHOD(device_detach, vmbus_res_detach),
|
||||
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
||||
DEVMETHOD(device_suspend, bus_generic_suspend),
|
||||
DEVMETHOD(device_resume, bus_generic_resume),
|
||||
|
||||
DEVMETHOD_END
|
||||
};
|
||||
|
||||
static driver_t vmbus_res_driver = {
|
||||
"vmbus_res",
|
||||
vmbus_res_methods,
|
||||
1
|
||||
};
|
||||
|
||||
static devclass_t vmbus_res_devclass;
|
||||
|
||||
DRIVER_MODULE(vmbus_res, acpi, vmbus_res_driver, vmbus_res_devclass,
|
||||
NULL, NULL);
|
||||
MODULE_DEPEND(vmbus_res, acpi, 1, 1, 1);
|
||||
MODULE_VERSION(vmbus_res, 1);
|
||||
|
||||
static int
|
||||
vmbus_res_probe(device_t dev)
|
||||
{
|
||||
char *id[] = { "VMBUS", NULL };
|
||||
|
||||
if (ACPI_ID_PROBE(device_get_parent(dev), dev, id) == NULL ||
|
||||
device_get_unit(dev) != 0 || vm_guest != VM_GUEST_HV ||
|
||||
(hyperv_features & CPUID_HV_MSR_SYNIC) == 0)
|
||||
return (ENXIO);
|
||||
|
||||
device_set_desc(dev, "Hyper-V Vmbus Resource");
|
||||
return (BUS_PROBE_DEFAULT);
|
||||
}
|
||||
|
||||
static int
|
||||
vmbus_res_attach(device_t dev __unused)
|
||||
{
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
vmbus_res_detach(device_t dev __unused)
|
||||
{
|
||||
|
||||
return (0);
|
||||
}
|
||||
@ -12,6 +12,7 @@ SRCS= hyperv.c \
|
||||
vmbus_chan.c \
|
||||
vmbus_et.c \
|
||||
vmbus_if.c \
|
||||
vmbus_res.c \
|
||||
vmbus_xact.c
|
||||
SRCS+= acpi_if.h bus_if.h device_if.h opt_acpi.h pci_if.h pcib_if.h vmbus_if.h
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user