Get initial bootstrap of APs working under xen.

Note that the APs still blow up in sched_throw().

MFC after:	1 month

1 files changed, 130 insertions, 0 deletions

diff --git a/sys/i386/xen/mptable.c b/sys/i386/xen/mptable.c
new file mode 100644
index 0000000..99edc50
--- /dev/null
+++ b/sys/i386/xen/mptable.c
@@ -0,0 +1,130 @@
+/*-
+ * 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("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+
+#include <vm/vm.h>
+#include <vm/vm_param.h>
+#include <vm/pmap.h>
+
+#include <machine/apicreg.h>
+#include <machine/frame.h>
+#include <machine/intr_machdep.h>
+#include <machine/apicvar.h>
+#include <machine/md_var.h>
+#include <machine/mptable.h>
+#include <machine/specialreg.h>
+
+#include <machine/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_CPU - 1, SI_ORDER_FIRST, mptable_register,
+    NULL);
+
+
+
+int
+mptable_pci_probe_table(int bus)
+{
+
+	return (0);
+}
+
+int
+mptable_pci_route_interrupt(device_t pcib, device_t dev, int pin)
+{
+
+	return (0);
+}
+