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x86/xen: remove PVHv1 code

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PVHv1 was officially removed from Xen in 4.9, so just axe the related
code from FreeBSD.

Note FreeBSD supports PVHv2, which is the replacement for PVHv1.

Sponsored by: Citrix Systems R&D
Reviewed by: kib, Elliott Mitchell
Differential Revision: https://reviews.freebsd.org/D30228
This commit is contained in:
Roger Pau Monné 2021-05-12 12:17:53 +02:00
parent 2117a66af5
commit ac3ede5371
22 changed files with 14 additions and 1414 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/amd64/amd64/machdep.c
View File

@ -187,13 +187,6 @@ struct init_ops init_ops = {
.early_clock_source_init = i8254_init,
.early_delay = i8254_delay,
.parse_memmap = native_parse_memmap,
#ifdef SMP
.mp_bootaddress = mp_bootaddress,
.start_all_aps = native_start_all_aps,
#endif
#ifdef DEV_PCI
.msi_init = msi_init,
#endif
};
/*
@ -1283,8 +1276,9 @@ getmemsize(caddr_t kmdp, u_int64_t first)
* is configured to support APs and APs for the system start
* in real mode mode (e.g. SMP bare metal).
*/
if (init_ops.mp_bootaddress)
init_ops.mp_bootaddress(physmap, &physmap_idx);
#ifdef SMP
mp_bootaddress(physmap, &physmap_idx);
#endif
/* call pmap initialization to make new kernel address space */
pmap_bootstrap(&first);

4
sys/amd64/amd64/mp_machdep.c
View File

@ -245,7 +245,7 @@ cpu_mp_start(void)
mptramp_la57 = la57;
/* Start each Application Processor */
init_ops.start_all_aps();
start_all_aps();
set_interrupt_apic_ids();
@ -397,7 +397,7 @@ mp_realloc_pcpu(int cpuid, int domain)
* start each AP in our list
*/
int
native_start_all_aps(void)
start_all_aps(void)
{
u_int64_t *pt5, *pt4, *pt3, *pt2;
u_int32_t mpbioswarmvec;

2
sys/amd64/include/smp.h
View File

@ -38,7 +38,7 @@ inthand_t
IDTVEC(rendezvous_pti);
void invlop_handler(void);
int native_start_all_aps(void);
int start_all_aps(void);
void mp_bootaddress(vm_paddr_t *, unsigned int *);
#endif /* !LOCORE */

1
sys/conf/files
View File

@ -3545,7 +3545,6 @@ dev/xen/netback/netback.c optional xenhvm
dev/xen/netfront/netfront.c optional xenhvm
dev/xen/xenpci/xenpci.c optional xenpci
dev/xen/timer/timer.c optional xenhvm
dev/xen/pvcpu/pvcpu.c optional xenhvm
dev/xen/xenstore/xenstore.c optional xenhvm
dev/xen/xenstore/xenstore_dev.c optional xenhvm
dev/xen/xenstore/xenstored_dev.c optional xenhvm

4
sys/conf/files.amd64
View File

@ -387,8 +387,6 @@ dev/viawd/viawd.c optional viawd
dev/vmd/vmd.c optional vmd
dev/vmd/vmd_bus.c optional vmd_bus
dev/wbwd/wbwd.c optional wbwd
dev/xen/pci/xen_acpi_pci.c optional xenhvm
dev/xen/pci/xen_pci.c optional xenhvm
isa/syscons_isa.c optional sc
isa/vga_isa.c optional vga
kern/imgact_aout.c optional compat_aout
@ -461,8 +459,6 @@ x86/x86/mptable.c optional mptable
x86/x86/mptable_pci.c optional mptable pci
x86/x86/msi.c optional pci
x86/xen/pv.c optional xenhvm
x86/xen/pvcpu_enum.c optional xenhvm
x86/xen/xen_pci_bus.c optional xenhvm
compat/linuxkpi/common/src/linux_fpu.c optional compat_linuxkpi \
compile-with "${LINUXKPI_C}"

2
sys/conf/files.x86
View File

@ -328,5 +328,3 @@ x86/xen/hvm.c optional xenhvm
x86/xen/xen_intr.c optional xenhvm
x86/xen/xen_apic.c optional xenhvm
x86/xen/xenpv.c optional xenhvm
x86/xen/xen_msi.c optional xenhvm
x86/xen/xen_nexus.c optional xenhvm

97
sys/dev/xen/pci/xen_acpi_pci.c
View File

@ -1,97 +0,0 @@
/*
* 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 <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <dev/acpica/acpivar.h>
#include <dev/acpica/acpi_pcivar.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>
#include <xen/hypervisor.h>
#include <xen/xen_pci.h>
#include "pcib_if.h"
#include "pci_if.h"
static int
xen_acpi_pci_probe(device_t dev)
{
if (!xen_pv_domain())
return (ENXIO);
if (acpi_get_handle(dev) == NULL)
return (ENXIO);
device_set_desc(dev, "Xen ACPI PCI bus");
return (BUS_PROBE_SPECIFIC);
}
static void
xen_acpi_pci_child_added(device_t dev, device_t child)
{
acpi_pci_child_added(dev, child);
xen_pci_child_added_method(dev, child);
}
static device_method_t xen_acpi_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, xen_acpi_pci_probe),
/* PCI interface overwrites */
DEVMETHOD(pci_enable_msi, xen_pci_enable_msi_method),
DEVMETHOD(pci_disable_msi, xen_pci_disable_msi_method),
DEVMETHOD(pci_child_added, xen_acpi_pci_child_added),
DEVMETHOD_END
};
static devclass_t pci_devclass;
DECLARE_CLASS(acpi_pci_driver);
DEFINE_CLASS_1(pci, xen_acpi_pci_driver, xen_acpi_pci_methods,
sizeof(struct pci_softc), acpi_pci_driver);
DRIVER_MODULE(xen_acpi_pci, pcib, xen_acpi_pci_driver, pci_devclass, 0, 0);
MODULE_DEPEND(xen_acpi_pci, pci, 1, 1, 1);
MODULE_DEPEND(xen_acpi_pci, acpi, 1, 1, 1);
MODULE_VERSION(xen_acpi_pci, 1);

79
sys/dev/xen/pci/xen_pci.c
View File

@ -1,79 +0,0 @@
/*
* 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>
#include <xen/hypervisor.h>
#include <xen/xen_pci.h>
#include "pcib_if.h"
#include "pci_if.h"
static int
xen_pci_probe(device_t dev)
{
if (!xen_pv_domain())
return (ENXIO);
device_set_desc(dev, "Xen PCI bus");
return (BUS_PROBE_DEFAULT);
}
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),
DEVMETHOD(pci_child_added, xen_pci_child_added_method),
DEVMETHOD_END
};
static devclass_t pci_devclass;
DEFINE_CLASS_1(pci, xen_pci_driver, xen_pci_methods, sizeof(struct pci_softc),
pci_driver);
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);

99
sys/dev/xen/pvcpu/pvcpu.c
View File

@ -1,99 +0,0 @@
/*
* Copyright (c) 2013 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/module.h>
#include <sys/pcpu.h>
#include <sys/smp.h>
#include <xen/xen-os.h>
/*
* Dummy Xen cpu device
*
* Since there's no ACPI on PVH guests, we need to create a dummy
* CPU device in order to fill the pcpu->pc_device field.
*/
static void
xenpvcpu_identify(driver_t *driver, device_t parent)
{
int i;
/* Only attach in case the per-CPU device is not set. */
if (!xen_domain() || PCPU_GET(device) != NULL)
return;
CPU_FOREACH(i) {
if (BUS_ADD_CHILD(parent, 0, "pvcpu", i) == NULL)
panic("Unable to add Xen PV CPU device.");
}
}
static int
xenpvcpu_probe(device_t dev)
{
device_set_desc(dev, "Xen PV CPU");
return (BUS_PROBE_NOWILDCARD);
}
static int
xenpvcpu_attach(device_t dev)
{
struct pcpu *pc;
int cpu;
cpu = device_get_unit(dev);
pc = pcpu_find(cpu);
pc->pc_device = dev;
return (0);
}
static device_method_t xenpvcpu_methods[] = {
DEVMETHOD(device_identify, xenpvcpu_identify),
DEVMETHOD(device_probe, xenpvcpu_probe),
DEVMETHOD(device_attach, xenpvcpu_attach),
DEVMETHOD_END
};
static driver_t xenpvcpu_driver = {
"pvcpu",
xenpvcpu_methods,
0,
};
devclass_t xenpvcpu_devclass;
DRIVER_MODULE(xenpvcpu, xenpv, xenpvcpu_driver, xenpvcpu_devclass, 0, 0);
MODULE_DEPEND(xenpvcpu, xenpv, 1, 1, 1);

3
sys/i386/i386/machdep.c
View File

@ -212,9 +212,6 @@ extern struct sysentvec elf32_freebsd_sysvec;
struct init_ops init_ops = {
.early_clock_source_init = i8254_init,
.early_delay = i8254_delay,
#ifdef DEV_APIC
.msi_init = msi_init,
#endif
};
static void

3
sys/x86/include/init.h
View File

@ -41,9 +41,6 @@ struct init_ops {
void (*early_clock_source_init)(void);
void (*early_delay)(int);
void (*parse_memmap)(caddr_t, vm_paddr_t *, int *);
void (*mp_bootaddress)(vm_paddr_t *, unsigned int *);
int (*start_all_aps)(void);
void (*msi_init)(void);
};
extern struct init_ops init_ops;

2
sys/x86/x86/local_apic.c
View File

@ -1979,7 +1979,7 @@ apic_setup_io(void *dummy __unused)
lapic_dump("BSP");
/* Enable the MSI "pic". */
init_ops.msi_init();
msi_init();
#ifdef XENHVM
xen_intr_alloc_irqs();

6
sys/x86/xen/pv.c
View File

@ -74,7 +74,6 @@ __FBSDID("$FreeBSD$");
#include <xen/hypervisor.h>
#include <xen/xenstore/xenstorevar.h>
#include <xen/xen_pv.h>
#include <xen/xen_msi.h>
#include <xen/interface/arch-x86/hvm/start_info.h>
#include <xen/interface/vcpu.h>
@ -121,11 +120,6 @@ struct init_ops xen_pvh_init_ops = {
.early_clock_source_init = xen_clock_init,
.early_delay = xen_delay,
.parse_memmap = xen_pvh_parse_memmap,
#ifdef SMP
.mp_bootaddress = mp_bootaddress,
.start_all_aps = native_start_all_aps,
#endif
.msi_init = msi_init,
};
static struct bios_smap xen_smap[MAX_E820_ENTRIES];

264
sys/x86/xen/pvcpu_enum.c
View File

@ -1,264 +0,0 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2013 Roger Pau Monné <roger.pau@citrix.com>
* All rights reserved.
* Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
*
* 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/smp.h>
#include <sys/pcpu.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/intr_machdep.h>
#include <x86/apicvar.h>
#include <machine/cpu.h>
#include <machine/smp.h>
#include <machine/md_var.h>
#include <xen/xen-os.h>
#include <xen/xen_intr.h>
#include <xen/hypervisor.h>
#include <xen/interface/vcpu.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/aclocal.h>
#include <contrib/dev/acpica/include/actables.h>
#include <dev/acpica/acpivar.h>
static int xenpv_probe(void);
static int xenpv_probe_cpus(void);
static int xenpv_setup_local(void);
static int xenpv_setup_io(void);
static ACPI_TABLE_MADT *madt;
static vm_paddr_t madt_physaddr;
static vm_offset_t madt_length;
static struct apic_enumerator xenpv_enumerator = {
.apic_name = "Xen PV",
.apic_probe = xenpv_probe,
.apic_probe_cpus = xenpv_probe_cpus,
.apic_setup_local = xenpv_setup_local,
.apic_setup_io = xenpv_setup_io
};
/*--------------------- Helper functions to parse MADT -----------------------*/
/*
* Parse an interrupt source override for an ISA interrupt.
*/
static void
madt_parse_interrupt_override(ACPI_MADT_INTERRUPT_OVERRIDE *intr)
{
enum intr_trigger trig;
enum intr_polarity pol;
int ret;
if (acpi_quirks & ACPI_Q_MADT_IRQ0 && intr->SourceIrq == 0 &&
intr->GlobalIrq == 2) {
if (bootverbose)
printf("MADT: Skipping timer override\n");
return;
}
madt_parse_interrupt_values(intr, &trig, &pol);
/* Remap the IRQ if it is mapped to a different interrupt vector. */
if (intr->SourceIrq != intr->GlobalIrq && intr->GlobalIrq > 15 &&
intr->SourceIrq == AcpiGbl_FADT.SciInterrupt)
/*
* If the SCI is remapped to a non-ISA global interrupt,
* then override the vector we use to setup.
*/
acpi_OverrideInterruptLevel(intr->GlobalIrq);
/* Register the IRQ with the polarity and trigger mode found. */
ret = xen_register_pirq(intr->GlobalIrq, trig, pol);
if (ret != 0)
panic("Unable to register interrupt override");
}
/*
* Call the handler routine for each entry in the MADT table.
*/
static void
madt_walk_table(acpi_subtable_handler *handler, void *arg)
{
acpi_walk_subtables(madt + 1, (char *)madt + madt->Header.Length,
handler, arg);
}
/*
* Parse interrupt entries.
*/
static void
madt_parse_ints(ACPI_SUBTABLE_HEADER *entry, void *arg __unused)
{
if (entry->Type == ACPI_MADT_TYPE_INTERRUPT_OVERRIDE)
madt_parse_interrupt_override(
(ACPI_MADT_INTERRUPT_OVERRIDE *)entry);
}
/*---------------------------- Xen PV enumerator -----------------------------*/
/*
* This enumerator will only be registered on PVH
*/
static int
xenpv_probe(void)
{
return (0);
}
/*
* Test each possible vCPU in order to find the number of vCPUs
*/
static int
xenpv_probe_cpus(void)
{
#ifdef SMP
int i, ret;
for (i = 0; i < MAXCPU && (i * 2) < MAX_APIC_ID; i++) {
ret = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
mp_ncpus = min(mp_ncpus + 1, MAXCPU);
}
mp_maxid = mp_ncpus - 1;
max_apic_id = mp_ncpus * 2;
#endif
return (0);
}
/*
* Initialize the vCPU id of the BSP
*/
static int
xenpv_setup_local(void)
{
#ifdef SMP
int i, ret;
for (i = 0; i < MAXCPU && (i * 2) < MAX_APIC_ID; i++) {
ret = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
if (ret >= 0)
lapic_create((i * 2), (i == 0));
}
#endif
PCPU_SET(vcpu_id, 0);
lapic_init(0);
return (0);
}
/*
* On PVH guests there's no IO APIC
*/
static int
xenpv_setup_io(void)
{
if (xen_initial_domain()) {
/*
* NB: we could iterate over the MADT IOAPIC entries in order
* to figure out the exact number of IOAPIC interrupts, but
* this is legacy code so just keep using the previous
* behaviour and assume a maximum of 256 interrupts.
*/
num_io_irqs = max(255, num_io_irqs);
acpi_SetDefaultIntrModel(ACPI_INTR_APIC);
}
return (0);
}
void
xenpv_register_pirqs(struct pic *pic __unused)
{
unsigned int i;
int ret;
/* Map MADT */
madt_physaddr = acpi_find_table(ACPI_SIG_MADT);
madt = acpi_map_table(madt_physaddr, ACPI_SIG_MADT);
madt_length = madt->Header.Length;
/* Try to initialize ACPI so that we can access the FADT. */
ret = acpi_Startup();
if (ACPI_FAILURE(ret)) {
printf("MADT: ACPI Startup failed with %s\n",
AcpiFormatException(ret));
printf("Try disabling either ACPI or apic support.\n");
panic("Using MADT but ACPI doesn't work");
}
/* Run through the table to see if there are any overrides. */
madt_walk_table(madt_parse_ints, NULL);
/*
* If there was not an explicit override entry for the SCI,
* force it to use level trigger and active-low polarity.
*/
if (!madt_found_sci_override) {
printf(
"MADT: Forcing active-low polarity and level trigger for SCI\n");
ret = xen_register_pirq(AcpiGbl_FADT.SciInterrupt,
INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
if (ret != 0)
panic("Unable to register SCI IRQ");
}
/* Register legacy ISA IRQs */
for (i = 1; i < 16; i++) {
if (intr_lookup_source(i) != NULL)
continue;
ret = xen_register_pirq(i, INTR_TRIGGER_EDGE,
INTR_POLARITY_LOW);
if (ret != 0 && bootverbose)
printf("Unable to register legacy IRQ#%u: %d\n", i,
ret);
}
}
static void
xenpv_register(void *dummy __unused)
{
if (xen_pv_domain()) {
apic_register_enumerator(&xenpv_enumerator);
}
}
SYSINIT(xenpv_register, SI_SUB_TUNABLES - 1, SI_ORDER_FIRST, xenpv_register, NULL);

340
sys/x86/xen/xen_intr.c
View File

@ -114,8 +114,6 @@ DPCPU_DEFINE_STATIC(struct xen_intr_pcpu_data, xen_intr_pcpu) = {
DPCPU_DECLARE(struct vcpu_info *, vcpu_info);
#define XEN_EEXIST 17 /* Xen "already exists" error */
#define XEN_ALLOCATE_VECTOR 0 /* Allocate a vector for this event channel */
#define XEN_INVALID_EVTCHN 0 /* Invalid event channel */
#define is_valid_evtchn(x) ((x) != XEN_INVALID_EVTCHN)
@ -126,7 +124,6 @@ struct xenisrc {
int xi_cpu; /* VCPU for delivery. */
int xi_vector; /* Global isrc vector number. */
evtchn_port_t xi_port;
int xi_pirq;
int xi_virq;
void *xi_cookie;
u_int xi_close:1; /* close on unbind? */
@ -149,14 +146,6 @@ static int xen_intr_config_intr(struct intsrc *isrc,
enum intr_trigger trig, enum intr_polarity pol);
static int xen_intr_assign_cpu(struct intsrc *isrc, u_int apic_id);
static void xen_intr_pirq_enable_source(struct intsrc *isrc);
static void xen_intr_pirq_disable_source(struct intsrc *isrc, int eoi);
static void xen_intr_pirq_eoi_source(struct intsrc *isrc);
static void xen_intr_pirq_enable_intr(struct intsrc *isrc);
static void xen_intr_pirq_disable_intr(struct intsrc *isrc);
static int xen_intr_pirq_config_intr(struct intsrc *isrc,
enum intr_trigger trig, enum intr_polarity pol);
/**
* PIC interface for all event channel port types except physical IRQs.
*/
@ -174,30 +163,9 @@ struct pic xen_intr_pic = {
.pic_assign_cpu = xen_intr_assign_cpu
};
/**
* PIC interface for all event channel representing
* physical interrupt sources.
*/
struct pic xen_intr_pirq_pic = {
#ifdef __amd64__
.pic_register_sources = xenpv_register_pirqs,
#endif
.pic_enable_source = xen_intr_pirq_enable_source,
.pic_disable_source = xen_intr_pirq_disable_source,
.pic_eoi_source = xen_intr_pirq_eoi_source,
.pic_enable_intr = xen_intr_pirq_enable_intr,
.pic_disable_intr = xen_intr_pirq_disable_intr,
.pic_vector = xen_intr_vector,
.pic_source_pending = xen_intr_source_pending,
.pic_config_intr = xen_intr_pirq_config_intr,
.pic_assign_cpu = xen_intr_assign_cpu
};
static struct mtx xen_intr_isrc_lock;
static u_int xen_intr_auto_vector_count;
static struct xenisrc *xen_intr_port_to_isrc[NR_EVENT_CHANNELS];
static u_long *xen_intr_pirq_eoi_map;
static boolean_t xen_intr_pirq_eoi_map_enabled;
/*------------------------- Private Functions --------------------------------*/
/**
@ -305,10 +273,11 @@ xen_intr_find_unused_isrc(enum evtchn_type type)
* object or NULL.
*/
static struct xenisrc *
xen_intr_alloc_isrc(enum evtchn_type type, int vector)
xen_intr_alloc_isrc(enum evtchn_type type)
{
static int warned;
struct xenisrc *isrc;
unsigned int vector;
KASSERT(mtx_owned(&xen_intr_isrc_lock), ("Evtchn alloc lock not held"));
@ -320,18 +289,15 @@ xen_intr_alloc_isrc(enum evtchn_type type, int vector)
return (NULL);
}
if (type != EVTCHN_TYPE_PIRQ) {
vector = first_evtchn_irq + xen_intr_auto_vector_count;
xen_intr_auto_vector_count++;
}
vector = first_evtchn_irq + xen_intr_auto_vector_count;
xen_intr_auto_vector_count++;
KASSERT((intr_lookup_source(vector) == NULL),
("Trying to use an already allocated vector"));
mtx_unlock(&xen_intr_isrc_lock);
isrc = malloc(sizeof(*isrc), M_XENINTR, M_WAITOK | M_ZERO);
isrc->xi_intsrc.is_pic =
(type == EVTCHN_TYPE_PIRQ) ? &xen_intr_pirq_pic : &xen_intr_pic;
isrc->xi_intsrc.is_pic = &xen_intr_pic;
isrc->xi_vector = vector;
isrc->xi_type = type;
intr_register_source(&isrc->xi_intsrc);
@ -416,7 +382,7 @@ xen_intr_bind_isrc(struct xenisrc **isrcp, evtchn_port_t local_port,
mtx_lock(&xen_intr_isrc_lock);
isrc = xen_intr_find_unused_isrc(type);
if (isrc == NULL) {
isrc = xen_intr_alloc_isrc(type, XEN_ALLOCATE_VECTOR);
isrc = xen_intr_alloc_isrc(type);
if (isrc == NULL) {
mtx_unlock(&xen_intr_isrc_lock);
return (ENOSPC);
@ -632,8 +598,7 @@ xen_intr_init(void *dummy __unused)
{
shared_info_t *s = HYPERVISOR_shared_info;
struct xen_intr_pcpu_data *pcpu;
struct physdev_pirq_eoi_gmfn eoi_gmfn;
int i, rc;
int i;
if (!xen_domain())
return (0);
@ -653,18 +618,7 @@ xen_intr_init(void *dummy __unused)
for (i = 0; i < nitems(s->evtchn_mask); i++)
atomic_store_rel_long(&s->evtchn_mask[i], ~0);
/* Try to register PIRQ EOI map */
xen_intr_pirq_eoi_map = malloc(PAGE_SIZE, M_XENINTR, M_WAITOK | M_ZERO);
eoi_gmfn.gmfn = atop(vtophys(xen_intr_pirq_eoi_map));
rc = HYPERVISOR_physdev_op(PHYSDEVOP_pirq_eoi_gmfn_v2, &eoi_gmfn);
if (rc != 0 && bootverbose)
printf("Xen interrupts: unable to register PIRQ EOI map\n");
else
xen_intr_pirq_eoi_map_enabled = true;
intr_register_pic(&xen_intr_pic);
if (xen_pv_domain() && xen_initial_domain())
intr_register_pic(&xen_intr_pirq_pic);
if (bootverbose)
printf("Xen interrupt system initialized\n");
@ -1020,184 +974,6 @@ xen_intr_enable_intr(struct intsrc *base_isrc)
evtchn_unmask_port(isrc->xi_port);
}
/*------------------ Physical Interrupt Source PIC Functions -----------------*/
/*
* Mask a level triggered interrupt source.
*
* \param isrc The interrupt source to mask (if necessary).
* \param eoi If non-zero, perform any necessary end-of-interrupt
* acknowledgements.
*/
static void
xen_intr_pirq_disable_source(struct intsrc *base_isrc, int eoi)
{
struct xenisrc *isrc;
isrc = (struct xenisrc *)base_isrc;
if (isrc->xi_edgetrigger == 0)
evtchn_mask_port(isrc->xi_port);
if (eoi == PIC_EOI)
xen_intr_pirq_eoi_source(base_isrc);
}
/*
* Unmask a level triggered interrupt source.
*
* \param isrc The interrupt source to unmask (if necessary).
*/
static void
xen_intr_pirq_enable_source(struct intsrc *base_isrc)
{
struct xenisrc *isrc;
isrc = (struct xenisrc *)base_isrc;
if (isrc->xi_edgetrigger == 0)
evtchn_unmask_port(isrc->xi_port);
}
/*
* Perform any necessary end-of-interrupt acknowledgements.
*
* \param isrc The interrupt source to EOI.
*/
static void
xen_intr_pirq_eoi_source(struct intsrc *base_isrc)
{
struct xenisrc *isrc;
int error;
isrc = (struct xenisrc *)base_isrc;
if (xen_test_bit(isrc->xi_pirq, xen_intr_pirq_eoi_map)) {
struct physdev_eoi eoi = { .irq = isrc->xi_pirq };
error = HYPERVISOR_physdev_op(PHYSDEVOP_eoi, &eoi);
if (error != 0)
panic("Unable to EOI PIRQ#%d: %d\n",
isrc->xi_pirq, error);
}
}
/*
* Enable and unmask the interrupt source.
*
* \param isrc The interrupt source to enable.
*/
static void
xen_intr_pirq_enable_intr(struct intsrc *base_isrc)
{
struct xenisrc *isrc;
struct evtchn_bind_pirq bind_pirq;
struct physdev_irq_status_query irq_status;
int error;
isrc = (struct xenisrc *)base_isrc;
if (!xen_intr_pirq_eoi_map_enabled) {
irq_status.irq = isrc->xi_pirq;
error = HYPERVISOR_physdev_op(PHYSDEVOP_irq_status_query,
&irq_status);
if (error)
panic("unable to get status of IRQ#%d", isrc->xi_pirq);
if (irq_status.flags & XENIRQSTAT_needs_eoi) {
/*
* Since the dynamic PIRQ EOI map is not available
* mark the PIRQ as needing EOI unconditionally.
*/
xen_set_bit(isrc->xi_pirq, xen_intr_pirq_eoi_map);
}
}
bind_pirq.pirq = isrc->xi_pirq;
bind_pirq.flags = isrc->xi_edgetrigger ? 0 : BIND_PIRQ__WILL_SHARE;
error = HYPERVISOR_event_channel_op(EVTCHNOP_bind_pirq, &bind_pirq);
if (error)
panic("unable to bind IRQ#%d", isrc->xi_pirq);
isrc->xi_port = bind_pirq.port;
mtx_lock(&xen_intr_isrc_lock);
KASSERT((xen_intr_port_to_isrc[bind_pirq.port] == NULL),
("trying to override an already setup event channel port"));
xen_intr_port_to_isrc[bind_pirq.port] = isrc;
mtx_unlock(&xen_intr_isrc_lock);
evtchn_unmask_port(isrc->xi_port);
}
/*
* Disable an interrupt source.
*
* \param isrc The interrupt source to disable.
*/
static void
xen_intr_pirq_disable_intr(struct intsrc *base_isrc)
{
struct xenisrc *isrc;
struct evtchn_close close;
int error;
isrc = (struct xenisrc *)base_isrc;
evtchn_mask_port(isrc->xi_port);
close.port = isrc->xi_port;
error = HYPERVISOR_event_channel_op(EVTCHNOP_close, &close);
if (error)
panic("unable to close event channel %d IRQ#%d",
isrc->xi_port, isrc->xi_pirq);
mtx_lock(&xen_intr_isrc_lock);
xen_intr_port_to_isrc[isrc->xi_port] = NULL;
mtx_unlock(&xen_intr_isrc_lock);
isrc->xi_port = 0;
}
/**
* Perform configuration of an interrupt source.
*
* \param isrc The interrupt source to configure.
* \param trig Edge or level.
* \param pol Active high or low.
*
* \returns 0 if no events are pending, otherwise non-zero.
*/
static int
xen_intr_pirq_config_intr(struct intsrc *base_isrc, enum intr_trigger trig,
enum intr_polarity pol)
{
struct xenisrc *isrc = (struct xenisrc *)base_isrc;
struct physdev_setup_gsi setup_gsi;
int error;
KASSERT(!(trig == INTR_TRIGGER_CONFORM || pol == INTR_POLARITY_CONFORM),
("%s: Conforming trigger or polarity\n", __func__));
setup_gsi.gsi = isrc->xi_pirq;
setup_gsi.triggering = trig == INTR_TRIGGER_EDGE ? 0 : 1;
setup_gsi.polarity = pol == INTR_POLARITY_HIGH ? 0 : 1;
error = HYPERVISOR_physdev_op(PHYSDEVOP_setup_gsi, &setup_gsi);
if (error == -XEN_EEXIST) {
if ((isrc->xi_edgetrigger && (trig != INTR_TRIGGER_EDGE)) ||
(isrc->xi_activehi && (pol != INTR_POLARITY_HIGH)))
panic("unable to reconfigure interrupt IRQ#%d",
isrc->xi_pirq);
error = 0;
}
if (error)
panic("unable to configure IRQ#%d\n", isrc->xi_pirq);
isrc->xi_activehi = pol == INTR_POLARITY_HIGH ? 1 : 0;
isrc->xi_edgetrigger = trig == INTR_TRIGGER_EDGE ? 1 : 0;
return (0);
}
/*--------------------------- Public Functions -------------------------------*/
/*------- API comments for these methods can be found in xen/xenintr.h -------*/
int
@ -1412,101 +1188,6 @@ xen_intr_alloc_and_bind_ipi(u_int cpu, driver_filter_t filter,
#endif
}
int
xen_register_pirq(int vector, enum intr_trigger trig, enum intr_polarity pol)
{
struct physdev_map_pirq map_pirq;
struct xenisrc *isrc;
int error;
if (vector == 0)
return (EINVAL);
if (bootverbose)
printf("xen: register IRQ#%d\n", vector);
map_pirq.domid = DOMID_SELF;
map_pirq.type = MAP_PIRQ_TYPE_GSI;
map_pirq.index = vector;
map_pirq.pirq = vector;
error = HYPERVISOR_physdev_op(PHYSDEVOP_map_pirq, &map_pirq);
if (error) {
printf("xen: unable to map IRQ#%d\n", vector);
return (error);
}
mtx_lock(&xen_intr_isrc_lock);
isrc = xen_intr_alloc_isrc(EVTCHN_TYPE_PIRQ, vector);
mtx_unlock(&xen_intr_isrc_lock);
KASSERT((isrc != NULL), ("xen: unable to allocate isrc for interrupt"));
isrc->xi_pirq = vector;
isrc->xi_activehi = pol == INTR_POLARITY_HIGH ? 1 : 0;
isrc->xi_edgetrigger = trig == INTR_TRIGGER_EDGE ? 1 : 0;
return (0);
}
int
xen_register_msi(device_t dev, int vector, int count)
{
struct physdev_map_pirq msi_irq;
struct xenisrc *isrc;
int ret;
memset(&msi_irq, 0, sizeof(msi_irq));
msi_irq.domid = DOMID_SELF;
msi_irq.type = count == 1 ?
MAP_PIRQ_TYPE_MSI_SEG : MAP_PIRQ_TYPE_MULTI_MSI;
msi_irq.index = -1;
msi_irq.pirq = -1;
msi_irq.bus = pci_get_bus(dev) | (pci_get_domain(dev) << 16);
msi_irq.devfn = (pci_get_slot(dev) << 3) | pci_get_function(dev);
msi_irq.entry_nr = count;
ret = HYPERVISOR_physdev_op(PHYSDEVOP_map_pirq, &msi_irq);
if (ret != 0)
return (ret);
if (count != msi_irq.entry_nr) {
panic("unable to setup all requested MSI vectors "
"(expected %d got %d)", count, msi_irq.entry_nr);
}
mtx_lock(&xen_intr_isrc_lock);
for (int i = 0; i < count; i++) {
isrc = xen_intr_alloc_isrc(EVTCHN_TYPE_PIRQ, vector + i);
KASSERT(isrc != NULL,
("xen: unable to allocate isrc for interrupt"));
isrc->xi_pirq = msi_irq.pirq + i;
/* MSI interrupts are always edge triggered */
isrc->xi_edgetrigger = 1;
}
mtx_unlock(&xen_intr_isrc_lock);
return (0);
}
int
xen_release_msi(int vector)
{
struct physdev_unmap_pirq unmap;
struct xenisrc *isrc;
int ret;
isrc = (struct xenisrc *)intr_lookup_source(vector);
if (isrc == NULL)
return (ENXIO);
unmap.pirq = isrc->xi_pirq;
ret = HYPERVISOR_physdev_op(PHYSDEVOP_unmap_pirq, &unmap);
if (ret != 0)
return (ret);
xen_intr_release_isrc(isrc);
return (0);
}
int
xen_intr_describe(xen_intr_handle_t port_handle, const char *fmt, ...)
{
@ -1630,7 +1311,6 @@ xen_intr_print_type(enum evtchn_type type)
{
static const char *evtchn_type_to_string[EVTCHN_TYPE_COUNT] = {
[EVTCHN_TYPE_UNBOUND] = "UNBOUND",
[EVTCHN_TYPE_PIRQ] = "PIRQ",
[EVTCHN_TYPE_VIRQ] = "VIRQ",
[EVTCHN_TYPE_IPI] = "IPI",
[EVTCHN_TYPE_PORT] = "PORT",
@ -1651,12 +1331,6 @@ xen_intr_dump_port(struct xenisrc *isrc)
db_printf("Port %d Type: %s\n",
isrc->xi_port, xen_intr_print_type(isrc->xi_type));
if (isrc->xi_type == EVTCHN_TYPE_PIRQ) {
db_printf("\tPirq: %d ActiveHi: %d EdgeTrigger: %d "
"NeedsEOI: %d\n",
isrc->xi_pirq, isrc->xi_activehi, isrc->xi_edgetrigger,
!!xen_test_bit(isrc->xi_pirq, xen_intr_pirq_eoi_map));
}
if (isrc->xi_type == EVTCHN_TYPE_VIRQ)
db_printf("\tVirq: %d\n", isrc->xi_virq);

133
sys/x86/xen/xen_msi.c
View File

@ -1,133 +0,0 @@
/*
* 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/bus.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/sx.h>
#include <sys/systm.h>
#include <x86/apicreg.h>
#include <machine/cputypes.h>
#include <machine/md_var.h>
#include <machine/frame.h>
#include <machine/intr_machdep.h>
#include <x86/apicvar.h>
#include <machine/specialreg.h>
#include <dev/pci/pcivar.h>
#include <xen/xen-os.h>
#include <xen/xen_intr.h>
#include <xen/xen_msi.h>
static struct mtx msi_lock;
static u_int msi_last_irq;
void
xen_msi_init(void)
{
MPASS(num_io_irqs > 0);
first_msi_irq = num_io_irqs;
if (num_msi_irqs > UINT_MAX - first_msi_irq)
panic("num_msi_irqs too high");
num_io_irqs = first_msi_irq + num_msi_irqs;
mtx_init(&msi_lock, "msi", NULL, MTX_DEF);
}
/*
* Try to allocate 'count' interrupt sources with contiguous IDT values.
*/
int
xen_msi_alloc(device_t dev, int count, int maxcount, int *irqs)
{
int i, ret = 0;
mtx_lock(&msi_lock);
/* If we would exceed the max, give up. */
if (msi_last_irq + count > num_msi_irqs) {
mtx_unlock(&msi_lock);
return (ENXIO);
}
/* Allocate MSI vectors */
for (i = 0; i < count; i++)
irqs[i] = first_msi_irq + msi_last_irq++;
mtx_unlock(&msi_lock);
ret = xen_register_msi(dev, irqs[0], count);
if (ret != 0)
return (ret);
for (i = 0; i < count; i++)
nexus_add_irq(irqs[i]);
return (0);
}
int
xen_msi_release(int *irqs, int count)
{
int i, ret;
for (i = 0; i < count; i++) {
ret = xen_release_msi(irqs[i]);
if (ret != 0)
return (ret);
}
return (0);
}
int
xen_msi_map(int irq, uint64_t *addr, uint32_t *data)
{
return (0);
}
int
xen_msix_alloc(device_t dev, int *irq)
{
return (ENXIO);
}
int
xen_msix_release(int irq)
{
return (ENOENT);
}

166
sys/x86/xen/xen_nexus.c
View File

@ -1,166 +0,0 @@
/*
* Copyright (c) 2013 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/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <sys/smp.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <dev/acpica/acpivar.h>
#include <x86/init.h>
#include <machine/nexusvar.h>
#include <machine/intr_machdep.h>
#include <xen/xen-os.h>
#include <xen/xen_intr.h>
#include <xen/xen_msi.h>
#include "pcib_if.h"
/*
* Xen nexus(4) driver.
*/
static int
nexus_xen_probe(device_t dev)
{
if (!xen_pv_domain())
return (ENXIO);
return (BUS_PROBE_SPECIFIC);
}
static int
nexus_xen_attach(device_t dev)
{
int error;
device_t acpi_dev = NULL;
nexus_init_resources();
bus_generic_probe(dev);
if (xen_initial_domain()) {
/* Disable some ACPI devices that are not usable by Dom0 */
acpi_cpu_disabled = true;
acpi_hpet_disabled = true;
acpi_timer_disabled = true;
acpi_dev = BUS_ADD_CHILD(dev, 10, "acpi", 0);
if (acpi_dev == NULL)
panic("Unable to add ACPI bus to Xen Dom0");
}
error = bus_generic_attach(dev);
if (xen_initial_domain() && (error == 0))
acpi_install_wakeup_handler(device_get_softc(acpi_dev));
return (error);
}
static int
nexus_xen_config_intr(device_t dev, int irq, enum intr_trigger trig,
enum intr_polarity pol)
{
int ret;
/*
* ISA and PCI intline IRQs are not preregistered on Xen, so
* intercept calls to configure those and register them on the fly.
*/
if ((irq < first_msi_irq) && (intr_lookup_source(irq) == NULL)) {
ret = xen_register_pirq(irq, trig, pol);
if (ret != 0)
return (ret);
nexus_add_irq(irq);
}
return (intr_config_intr(irq, trig, pol));
}
static int
nexus_xen_alloc_msix(device_t pcib, device_t dev, int *irq)
{
return (xen_msix_alloc(dev, irq));
}
static int
nexus_xen_release_msix(device_t pcib, device_t dev, int irq)
{
return (xen_msix_release(irq));
}
static int
nexus_xen_alloc_msi(device_t pcib, device_t dev, int count, int maxcount, int *irqs)
{
return (xen_msi_alloc(dev, count, maxcount, irqs));
}
static int
nexus_xen_release_msi(device_t pcib, device_t dev, int count, int *irqs)
{
return (xen_msi_release(irqs, count));
}
static int
nexus_xen_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr, uint32_t *data)
{
return (xen_msi_map(irq, addr, data));
}
static device_method_t nexus_xen_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, nexus_xen_probe),
DEVMETHOD(device_attach, nexus_xen_attach),
/* INTR */
DEVMETHOD(bus_config_intr, nexus_xen_config_intr),
/* MSI */
DEVMETHOD(pcib_alloc_msi, nexus_xen_alloc_msi),
DEVMETHOD(pcib_release_msi, nexus_xen_release_msi),
DEVMETHOD(pcib_alloc_msix, nexus_xen_alloc_msix),
DEVMETHOD(pcib_release_msix, nexus_xen_release_msix),
DEVMETHOD(pcib_map_msi, nexus_xen_map_msi),
{ 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);

90
sys/x86/xen/xen_pci_bus.c
View File

@ -1,90 +0,0 @@
/*
* 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/pciio.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pci_private.h>
#include <xen/xen-os.h>
#include <xen/hypervisor.h>
#include <xen/xen_pci.h>
#include "pcib_if.h"
#include "pci_if.h"
void
xen_pci_enable_msi_method(device_t dev, device_t child, uint64_t address,
uint16_t data)
{
struct pci_devinfo *dinfo = device_get_ivars(child);
struct pcicfg_msi *msi = &dinfo->cfg.msi;
/* Enable MSI in the control register. */
msi->msi_ctrl |= PCIM_MSICTRL_MSI_ENABLE;
pci_write_config(child, msi->msi_location + PCIR_MSI_CTRL,
msi->msi_ctrl, 2);
}
void
xen_pci_disable_msi_method(device_t dev, device_t child)
{
struct pci_devinfo *dinfo = device_get_ivars(child);
struct pcicfg_msi *msi = &dinfo->cfg.msi;
msi->msi_ctrl &= ~PCIM_MSICTRL_MSI_ENABLE;
pci_write_config(child, msi->msi_location + PCIR_MSI_CTRL,
msi->msi_ctrl, 2);
}
void
xen_pci_child_added_method(device_t dev, device_t child)
{
struct pci_devinfo *dinfo;
struct physdev_pci_device_add add_pci;
int error;
dinfo = device_get_ivars(child);
KASSERT((dinfo != NULL),
("xen_pci_add_child_method called with NULL dinfo"));
bzero(&add_pci, sizeof(add_pci));
add_pci.seg = dinfo->cfg.domain;
add_pci.bus = dinfo->cfg.bus;
add_pci.devfn = (dinfo->cfg.slot << 3) | dinfo->cfg.func;
error = HYPERVISOR_physdev_op(PHYSDEVOP_pci_device_add, &add_pci);
if (error)
panic("unable to add device bus %u devfn %u error: %d\n",
add_pci.bus, add_pci.devfn, error);
}

1
sys/xen/evtchn/evtchnvar.h
View File

@ -39,7 +39,6 @@
enum evtchn_type {
EVTCHN_TYPE_UNBOUND,
EVTCHN_TYPE_PIRQ,
EVTCHN_TYPE_VIRQ,
EVTCHN_TYPE_IPI,
EVTCHN_TYPE_PORT,

44
sys/xen/xen_intr.h
View File

@ -152,18 +152,6 @@ int xen_intr_alloc_and_bind_ipi(u_int cpu,
driver_filter_t filter, enum intr_type irqflags,
xen_intr_handle_t *handlep);
/**
* Register a physical interrupt vector and setup the interrupt source.
*
* \param vector The global vector to use.
* \param trig Default trigger method.
* \param pol Default polarity of the interrupt.
*
* \returns 0 on success, otherwise an errno.
*/
int xen_register_pirq(int vector, enum intr_trigger trig,
enum intr_polarity pol);
/**
* Unbind an interrupt handler from its interrupt source.
*
@ -218,28 +206,6 @@ void xen_intr_signal(xen_intr_handle_t handle);
*/
evtchn_port_t xen_intr_port(xen_intr_handle_t handle);
/**
* Setup MSI vector interrupt(s).
*
* \param dev The device that requests the binding.
*
* \param vector Requested initial vector to bind the MSI interrupt(s) to.
*
* \param count Number of vectors to allocate.
*
* \returns 0 on success, otherwise an errno.
*/
int xen_register_msi(device_t dev, int vector, int count);
/**
* Teardown a MSI vector interrupt.
*
* \param vector Requested vector to release.
*
* \returns 0 on success, otherwise an errno.
*/
int xen_release_msi(int vector);
/**
* Bind an event channel port with a handler
*
@ -271,14 +237,4 @@ int xen_intr_add_handler(const char *name, driver_filter_t filter,
int xen_intr_get_evtchn_from_port(evtchn_port_t port,
xen_intr_handle_t *handlep);
/**
* Register the IO-APIC PIRQs when running in legacy PVH Dom0 mode.
*
* \param pic PIC instance.
*
* NB: this should be removed together with the support for legacy PVH mode.
*/
struct pic;
void xenpv_register_pirqs(struct pic *pic);
#endif /* _XEN_INTR_H_ */

39
sys/xen/xen_msi.h
View File

@ -1,39 +0,0 @@
/*
* 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.
*
* $FreeBSD$
*/
#ifndef __XEN_MSI_H__
#define __XEN_MSI_H__
void xen_msi_init(void);
int xen_msi_map(int irq, uint64_t *addr, uint32_t *data);
int xen_msi_alloc(device_t dev, int count, int maxcount, int *irqs);
int xen_msi_release(int *irqs, int count);
int xen_msix_alloc(device_t dev, int *irq);
int xen_msix_release(int irq);
#endif /* !__XEN_MSI_H__ */

37
sys/xen/xen_pci.h
View File

@ -1,37 +0,0 @@
/*
* 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.
*
* $FreeBSD$
*/
#ifndef __XEN_PCI_H__
#define __XEN_PCI_H__
void xen_pci_enable_msi_method(device_t dev, device_t child, uint64_t address,
uint16_t data);
void xen_pci_disable_msi_method(device_t dev, device_t child);
void xen_pci_child_added_method(device_t dev, device_t child);
#endif /* !__XEN_PCI_H__ */