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/*-
* Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
* Copyright (c) 1996, by Steve Passe
* 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. The name of the developer may NOT be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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: release/9.1.0/sys/i386/xen/mptable.c 224120 2011-07-17 01:23:50Z jhb $");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <machine/frame.h>
#include <machine/intr_machdep.h>
#include <machine/apicvar.h>
#include <xen/hypervisor.h>
#include <machine/xen/xen-os.h>
#include <machine/smp.h>
#include <xen/interface/vcpu.h>
static int mptable_probe(void);
static int mptable_probe_cpus(void);
static void mptable_register(void *dummy);
static int mptable_setup_local(void);
static int mptable_setup_io(void);
static struct apic_enumerator mptable_enumerator = {
"MPTable",
mptable_probe,
mptable_probe_cpus,
mptable_setup_local,
mptable_setup_io
};
static int
mptable_probe(void)
{
return (-100);
}
static int
mptable_probe_cpus(void)
{
int i, rc;
for (i = 0; i < MAXCPU; i++) {
rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
if (rc >= 0)
cpu_add(i, (i == 0));
}
return (0);
}
/*
* Initialize the local APIC on the BSP.
*/
static int
mptable_setup_local(void)
{
return (0);
}
static int
mptable_setup_io(void)
{
return (0);
}
static void
mptable_register(void *dummy __unused)
{
apic_register_enumerator(&mptable_enumerator);
}
SYSINIT(mptable_register, SI_SUB_TUNABLES - 1, SI_ORDER_FIRST, mptable_register,
NULL);