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freebsd-dev/sys/dev/xen/pci/xen_pci.c

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msi: add Xen MSI implementation This patch adds support for MSI interrupts when running on Xen. Apart from adding the Xen related code needed in order to register MSI interrupts this patch also makes the msi_init function a hook in init_ops, so different MSI implementations can have different initialization functions. Sponsored by: Citrix Systems R&D xen/interface/physdev.h: - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen public interface. x86/include/init.h: - Add a hook for setting custom msi_init methods. amd64/amd64/machdep.c: i386/i386/machdep.c: - Set the default msi_init hook to point to the native MSI initialization method. x86/xen/pv.c: - Set the Xen MSI init hook when running as a Xen guest. x86/x86/local_apic.c: - Call the msi_init hook instead of directly calling msi_init. xen/xen_intr.h: x86/xen/xen_intr.c: - Introduce support for registering/releasing MSI interrupts with Xen. - The MSI interrupts will use the same PIC as the IO APIC interrupts. xen/xen_msi.h: x86/xen/xen_msi.c: - Introduce a Xen MSI implementation. x86/xen/xen_nexus.c: - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI implementation. x86/xen/xen_pci.c: - Introduce a Xen specific PCI bus that inherits from the ACPI PCI bus and overwrites the native MSI methods. - This is needed because when running under Xen the MSI messages used to configure MSI interrupts on PCI devices are written by Xen itself. dev/acpica/acpi_pci.c: - Lower the quality of the ACPI PCI bus so the newly introduced Xen PCI bus can take over when needed. conf/files.i386: conf/files.amd64: - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
/*
* Copyright (c) 2014 Roger Pau Monné <roger.pau@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/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/pciio.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pci_private.h>
#include <xen/xen-os.h>
xen: add the Xen implementation of pci_child_added method Add the Xen specific implementation of pci_child_added to the Xen PCI bus. This is needed so FreeBSD can register the devices it finds with the hypervisor. Sponsored by: Citrix Systems R&D x86/xen/xen_pci.c: - Add the Xen pci_child_added method.
2014-09-30 16:49:17 +00:00
#include <xen/hypervisor.h>
xen: create a new PCI bus override When running as a Xen PVH Dom0 we need to add custom buses that override some of the functionality present in the ACPI PCI Bus and the PCI Bus. We currently override the ACPI PCI Bus, but not the PCI Bus, so add a new override for the PCI Bus and share the generic functions between them. Reported by: David P. Discher <dpd@dpdtech.com> Sponsored by: Citrix Systems R&D conf/files.amd64: - Add the new files. x86/xen/xen_pci_bus.c: - Generic file that contains the PCI overrides so they can be used by the several PCI specific buses. xen/xen_pci.h: - Prototypes for the generic overried functions. dev/xen/pci/xen_pci.c: - Xen specific override for the PCI bus. dev/xen/pci/xen_acpi_pci.c: - Xen specific override for the ACPI PCI bus.
2014-12-09 18:03:25 +00:00
#include <xen/xen_pci.h>
msi: add Xen MSI implementation This patch adds support for MSI interrupts when running on Xen. Apart from adding the Xen related code needed in order to register MSI interrupts this patch also makes the msi_init function a hook in init_ops, so different MSI implementations can have different initialization functions. Sponsored by: Citrix Systems R&D xen/interface/physdev.h: - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen public interface. x86/include/init.h: - Add a hook for setting custom msi_init methods. amd64/amd64/machdep.c: i386/i386/machdep.c: - Set the default msi_init hook to point to the native MSI initialization method. x86/xen/pv.c: - Set the Xen MSI init hook when running as a Xen guest. x86/x86/local_apic.c: - Call the msi_init hook instead of directly calling msi_init. xen/xen_intr.h: x86/xen/xen_intr.c: - Introduce support for registering/releasing MSI interrupts with Xen. - The MSI interrupts will use the same PIC as the IO APIC interrupts. xen/xen_msi.h: x86/xen/xen_msi.c: - Introduce a Xen MSI implementation. x86/xen/xen_nexus.c: - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI implementation. x86/xen/xen_pci.c: - Introduce a Xen specific PCI bus that inherits from the ACPI PCI bus and overwrites the native MSI methods. - This is needed because when running under Xen the MSI messages used to configure MSI interrupts on PCI devices are written by Xen itself. dev/acpica/acpi_pci.c: - Lower the quality of the ACPI PCI bus so the newly introduced Xen PCI bus can take over when needed. conf/files.i386: conf/files.amd64: - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
#include "pcib_if.h"
#include "pci_if.h"
xen: create a new PCI bus override When running as a Xen PVH Dom0 we need to add custom buses that override some of the functionality present in the ACPI PCI Bus and the PCI Bus. We currently override the ACPI PCI Bus, but not the PCI Bus, so add a new override for the PCI Bus and share the generic functions between them. Reported by: David P. Discher <dpd@dpdtech.com> Sponsored by: Citrix Systems R&D conf/files.amd64: - Add the new files. x86/xen/xen_pci_bus.c: - Generic file that contains the PCI overrides so they can be used by the several PCI specific buses. xen/xen_pci.h: - Prototypes for the generic overried functions. dev/xen/pci/xen_pci.c: - Xen specific override for the PCI bus. dev/xen/pci/xen_acpi_pci.c: - Xen specific override for the ACPI PCI bus.
2014-12-09 18:03:25 +00:00
static int
xen_pci_probe(device_t dev)
{
msi: add Xen MSI implementation This patch adds support for MSI interrupts when running on Xen. Apart from adding the Xen related code needed in order to register MSI interrupts this patch also makes the msi_init function a hook in init_ops, so different MSI implementations can have different initialization functions. Sponsored by: Citrix Systems R&D xen/interface/physdev.h: - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen public interface. x86/include/init.h: - Add a hook for setting custom msi_init methods. amd64/amd64/machdep.c: i386/i386/machdep.c: - Set the default msi_init hook to point to the native MSI initialization method. x86/xen/pv.c: - Set the Xen MSI init hook when running as a Xen guest. x86/x86/local_apic.c: - Call the msi_init hook instead of directly calling msi_init. xen/xen_intr.h: x86/xen/xen_intr.c: - Introduce support for registering/releasing MSI interrupts with Xen. - The MSI interrupts will use the same PIC as the IO APIC interrupts. xen/xen_msi.h: x86/xen/xen_msi.c: - Introduce a Xen MSI implementation. x86/xen/xen_nexus.c: - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI implementation. x86/xen/xen_pci.c: - Introduce a Xen specific PCI bus that inherits from the ACPI PCI bus and overwrites the native MSI methods. - This is needed because when running under Xen the MSI messages used to configure MSI interrupts on PCI devices are written by Xen itself. dev/acpica/acpi_pci.c: - Lower the quality of the ACPI PCI bus so the newly introduced Xen PCI bus can take over when needed. conf/files.i386: conf/files.amd64: - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
xen: create a new PCI bus override When running as a Xen PVH Dom0 we need to add custom buses that override some of the functionality present in the ACPI PCI Bus and the PCI Bus. We currently override the ACPI PCI Bus, but not the PCI Bus, so add a new override for the PCI Bus and share the generic functions between them. Reported by: David P. Discher <dpd@dpdtech.com> Sponsored by: Citrix Systems R&D conf/files.amd64: - Add the new files. x86/xen/xen_pci_bus.c: - Generic file that contains the PCI overrides so they can be used by the several PCI specific buses. xen/xen_pci.h: - Prototypes for the generic overried functions. dev/xen/pci/xen_pci.c: - Xen specific override for the PCI bus. dev/xen/pci/xen_acpi_pci.c: - Xen specific override for the ACPI PCI bus.
2014-12-09 18:03:25 +00:00
if (!xen_pv_domain())
return (ENXIO);
device_set_desc(dev, "Xen PCI bus");
return (BUS_PROBE_DEFAULT);
}
msi: add Xen MSI implementation This patch adds support for MSI interrupts when running on Xen. Apart from adding the Xen related code needed in order to register MSI interrupts this patch also makes the msi_init function a hook in init_ops, so different MSI implementations can have different initialization functions. Sponsored by: Citrix Systems R&D xen/interface/physdev.h: - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen public interface. x86/include/init.h: - Add a hook for setting custom msi_init methods. amd64/amd64/machdep.c: i386/i386/machdep.c: - Set the default msi_init hook to point to the native MSI initialization method. x86/xen/pv.c: - Set the Xen MSI init hook when running as a Xen guest. x86/x86/local_apic.c: - Call the msi_init hook instead of directly calling msi_init. xen/xen_intr.h: x86/xen/xen_intr.c: - Introduce support for registering/releasing MSI interrupts with Xen. - The MSI interrupts will use the same PIC as the IO APIC interrupts. xen/xen_msi.h: x86/xen/xen_msi.c: - Introduce a Xen MSI implementation. x86/xen/xen_nexus.c: - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI implementation. x86/xen/xen_pci.c: - Introduce a Xen specific PCI bus that inherits from the ACPI PCI bus and overwrites the native MSI methods. - This is needed because when running under Xen the MSI messages used to configure MSI interrupts on PCI devices are written by Xen itself. dev/acpica/acpi_pci.c: - Lower the quality of the ACPI PCI bus so the newly introduced Xen PCI bus can take over when needed. conf/files.i386: conf/files.amd64: - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
static device_method_t xen_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, xen_pci_probe),
/* PCI interface overwrites */
DEVMETHOD(pci_enable_msi, xen_pci_enable_msi_method),
DEVMETHOD(pci_disable_msi, xen_pci_disable_msi_method),
xen: add the Xen implementation of pci_child_added method Add the Xen specific implementation of pci_child_added to the Xen PCI bus. This is needed so FreeBSD can register the devices it finds with the hypervisor. Sponsored by: Citrix Systems R&D x86/xen/xen_pci.c: - Add the Xen pci_child_added method.
2014-09-30 16:49:17 +00:00
DEVMETHOD(pci_child_added, xen_pci_child_added_method),
msi: add Xen MSI implementation This patch adds support for MSI interrupts when running on Xen. Apart from adding the Xen related code needed in order to register MSI interrupts this patch also makes the msi_init function a hook in init_ops, so different MSI implementations can have different initialization functions. Sponsored by: Citrix Systems R&D xen/interface/physdev.h: - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen public interface. x86/include/init.h: - Add a hook for setting custom msi_init methods. amd64/amd64/machdep.c: i386/i386/machdep.c: - Set the default msi_init hook to point to the native MSI initialization method. x86/xen/pv.c: - Set the Xen MSI init hook when running as a Xen guest. x86/x86/local_apic.c: - Call the msi_init hook instead of directly calling msi_init. xen/xen_intr.h: x86/xen/xen_intr.c: - Introduce support for registering/releasing MSI interrupts with Xen. - The MSI interrupts will use the same PIC as the IO APIC interrupts. xen/xen_msi.h: x86/xen/xen_msi.c: - Introduce a Xen MSI implementation. x86/xen/xen_nexus.c: - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI implementation. x86/xen/xen_pci.c: - Introduce a Xen specific PCI bus that inherits from the ACPI PCI bus and overwrites the native MSI methods. - This is needed because when running under Xen the MSI messages used to configure MSI interrupts on PCI devices are written by Xen itself. dev/acpica/acpi_pci.c: - Lower the quality of the ACPI PCI bus so the newly introduced Xen PCI bus can take over when needed. conf/files.i386: conf/files.amd64: - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
DEVMETHOD_END
};
static devclass_t pci_devclass;
DEFINE_CLASS_1(pci, xen_pci_driver, xen_pci_methods, sizeof(struct pci_softc),
xen: create a new PCI bus override When running as a Xen PVH Dom0 we need to add custom buses that override some of the functionality present in the ACPI PCI Bus and the PCI Bus. We currently override the ACPI PCI Bus, but not the PCI Bus, so add a new override for the PCI Bus and share the generic functions between them. Reported by: David P. Discher <dpd@dpdtech.com> Sponsored by: Citrix Systems R&D conf/files.amd64: - Add the new files. x86/xen/xen_pci_bus.c: - Generic file that contains the PCI overrides so they can be used by the several PCI specific buses. xen/xen_pci.h: - Prototypes for the generic overried functions. dev/xen/pci/xen_pci.c: - Xen specific override for the PCI bus. dev/xen/pci/xen_acpi_pci.c: - Xen specific override for the ACPI PCI bus.
2014-12-09 18:03:25 +00:00
pci_driver);
msi: add Xen MSI implementation This patch adds support for MSI interrupts when running on Xen. Apart from adding the Xen related code needed in order to register MSI interrupts this patch also makes the msi_init function a hook in init_ops, so different MSI implementations can have different initialization functions. Sponsored by: Citrix Systems R&D xen/interface/physdev.h: - Add the MAP_PIRQ_TYPE_MULTI_MSI to map multi-vector MSI to the Xen public interface. x86/include/init.h: - Add a hook for setting custom msi_init methods. amd64/amd64/machdep.c: i386/i386/machdep.c: - Set the default msi_init hook to point to the native MSI initialization method. x86/xen/pv.c: - Set the Xen MSI init hook when running as a Xen guest. x86/x86/local_apic.c: - Call the msi_init hook instead of directly calling msi_init. xen/xen_intr.h: x86/xen/xen_intr.c: - Introduce support for registering/releasing MSI interrupts with Xen. - The MSI interrupts will use the same PIC as the IO APIC interrupts. xen/xen_msi.h: x86/xen/xen_msi.c: - Introduce a Xen MSI implementation. x86/xen/xen_nexus.c: - Overwrite the default MSI hooks in the Xen Nexus to use the Xen MSI implementation. x86/xen/xen_pci.c: - Introduce a Xen specific PCI bus that inherits from the ACPI PCI bus and overwrites the native MSI methods. - This is needed because when running under Xen the MSI messages used to configure MSI interrupts on PCI devices are written by Xen itself. dev/acpica/acpi_pci.c: - Lower the quality of the ACPI PCI bus so the newly introduced Xen PCI bus can take over when needed. conf/files.i386: conf/files.amd64: - Add the newly created files to the build process.
2014-09-30 16:46:45 +00:00
DRIVER_MODULE(xen_pci, pcib, xen_pci_driver, pci_devclass, 0, 0);
MODULE_DEPEND(xen_pci, pci, 1, 1, 1);
MODULE_VERSION(xen_pci, 1);
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