972 lines
21 KiB
C
972 lines
21 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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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, this list of conditions and the following 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 NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#include <machine/atomic.h>
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#include <machine/segments.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <err.h>
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#include <libgen.h>
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#include <unistd.h>
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#include <assert.h>
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#include <errno.h>
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#include <pthread.h>
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#include <pthread_np.h>
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#include <sysexits.h>
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#include <stdbool.h>
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#include <machine/vmm.h>
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#include <vmmapi.h>
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#include "bhyverun.h"
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#include "acpi.h"
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#include "atkbdc.h"
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#include "inout.h"
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#include "dbgport.h"
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#include "fwctl.h"
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#include "ioapic.h"
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#include "mem.h"
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#include "mevent.h"
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#include "mptbl.h"
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#include "pci_emul.h"
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#include "pci_irq.h"
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#include "pci_lpc.h"
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#include "smbiostbl.h"
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#include "xmsr.h"
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#include "spinup_ap.h"
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#include "rtc.h"
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#define GUEST_NIO_PORT 0x488 /* guest upcalls via i/o port */
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#define MB (1024UL * 1024)
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#define GB (1024UL * MB)
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typedef int (*vmexit_handler_t)(struct vmctx *, struct vm_exit *, int *vcpu);
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extern int vmexit_task_switch(struct vmctx *, struct vm_exit *, int *vcpu);
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char *vmname;
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int guest_ncpus;
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char *guest_uuid_str;
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static int guest_vmexit_on_hlt, guest_vmexit_on_pause;
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static int virtio_msix = 1;
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static int x2apic_mode = 0; /* default is xAPIC */
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static int strictio;
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static int strictmsr = 1;
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static int acpi;
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static char *progname;
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static const int BSP = 0;
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static cpuset_t cpumask;
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static void vm_loop(struct vmctx *ctx, int vcpu, uint64_t rip);
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static struct vm_exit vmexit[VM_MAXCPU];
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struct bhyvestats {
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uint64_t vmexit_bogus;
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uint64_t vmexit_reqidle;
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uint64_t vmexit_hlt;
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uint64_t vmexit_pause;
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uint64_t vmexit_mtrap;
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uint64_t vmexit_inst_emul;
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uint64_t cpu_switch_rotate;
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uint64_t cpu_switch_direct;
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} stats;
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struct mt_vmm_info {
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pthread_t mt_thr;
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struct vmctx *mt_ctx;
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int mt_vcpu;
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} mt_vmm_info[VM_MAXCPU];
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static cpuset_t *vcpumap[VM_MAXCPU] = { NULL };
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static void
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usage(int code)
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{
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fprintf(stderr,
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"Usage: %s [-abehuwxACHPSWY] [-c vcpus] [-g <gdb port>] [-l <lpc>]\n"
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" %*s [-m mem] [-p vcpu:hostcpu] [-s <pci>] [-U uuid] <vm>\n"
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" -a: local apic is in xAPIC mode (deprecated)\n"
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" -A: create ACPI tables\n"
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" -c: # cpus (default 1)\n"
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" -C: include guest memory in core file\n"
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" -e: exit on unhandled I/O access\n"
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" -g: gdb port\n"
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" -h: help\n"
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" -H: vmexit from the guest on hlt\n"
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" -l: LPC device configuration\n"
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" -m: memory size in MB\n"
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" -p: pin 'vcpu' to 'hostcpu'\n"
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" -P: vmexit from the guest on pause\n"
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" -s: <slot,driver,configinfo> PCI slot config\n"
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" -S: guest memory cannot be swapped\n"
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" -u: RTC keeps UTC time\n"
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" -U: uuid\n"
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" -w: ignore unimplemented MSRs\n"
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" -W: force virtio to use single-vector MSI\n"
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" -x: local apic is in x2APIC mode\n"
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" -Y: disable MPtable generation\n",
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progname, (int)strlen(progname), "");
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exit(code);
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}
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static int
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pincpu_parse(const char *opt)
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{
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int vcpu, pcpu;
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if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) {
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fprintf(stderr, "invalid format: %s\n", opt);
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return (-1);
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}
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if (vcpu < 0 || vcpu >= VM_MAXCPU) {
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fprintf(stderr, "vcpu '%d' outside valid range from 0 to %d\n",
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vcpu, VM_MAXCPU - 1);
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return (-1);
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}
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if (pcpu < 0 || pcpu >= CPU_SETSIZE) {
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fprintf(stderr, "hostcpu '%d' outside valid range from "
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"0 to %d\n", pcpu, CPU_SETSIZE - 1);
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return (-1);
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}
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if (vcpumap[vcpu] == NULL) {
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if ((vcpumap[vcpu] = malloc(sizeof(cpuset_t))) == NULL) {
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perror("malloc");
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return (-1);
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}
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CPU_ZERO(vcpumap[vcpu]);
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}
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CPU_SET(pcpu, vcpumap[vcpu]);
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return (0);
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}
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void
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vm_inject_fault(void *arg, int vcpu, int vector, int errcode_valid,
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int errcode)
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{
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struct vmctx *ctx;
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int error, restart_instruction;
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ctx = arg;
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restart_instruction = 1;
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error = vm_inject_exception(ctx, vcpu, vector, errcode_valid, errcode,
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restart_instruction);
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assert(error == 0);
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}
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void *
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paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len)
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{
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return (vm_map_gpa(ctx, gaddr, len));
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}
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int
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fbsdrun_vmexit_on_pause(void)
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{
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return (guest_vmexit_on_pause);
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}
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int
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fbsdrun_vmexit_on_hlt(void)
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{
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return (guest_vmexit_on_hlt);
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}
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int
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fbsdrun_virtio_msix(void)
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{
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return (virtio_msix);
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}
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static void *
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fbsdrun_start_thread(void *param)
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{
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char tname[MAXCOMLEN + 1];
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struct mt_vmm_info *mtp;
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int vcpu;
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mtp = param;
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vcpu = mtp->mt_vcpu;
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snprintf(tname, sizeof(tname), "vcpu %d", vcpu);
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pthread_set_name_np(mtp->mt_thr, tname);
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vm_loop(mtp->mt_ctx, vcpu, vmexit[vcpu].rip);
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/* not reached */
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exit(1);
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return (NULL);
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}
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void
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fbsdrun_addcpu(struct vmctx *ctx, int fromcpu, int newcpu, uint64_t rip)
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{
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int error;
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assert(fromcpu == BSP);
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/*
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* The 'newcpu' must be activated in the context of 'fromcpu'. If
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* vm_activate_cpu() is delayed until newcpu's pthread starts running
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* then vmm.ko is out-of-sync with bhyve and this can create a race
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* with vm_suspend().
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*/
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error = vm_activate_cpu(ctx, newcpu);
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if (error != 0)
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err(EX_OSERR, "could not activate CPU %d", newcpu);
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CPU_SET_ATOMIC(newcpu, &cpumask);
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/*
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* Set up the vmexit struct to allow execution to start
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* at the given RIP
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*/
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vmexit[newcpu].rip = rip;
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vmexit[newcpu].inst_length = 0;
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mt_vmm_info[newcpu].mt_ctx = ctx;
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mt_vmm_info[newcpu].mt_vcpu = newcpu;
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error = pthread_create(&mt_vmm_info[newcpu].mt_thr, NULL,
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fbsdrun_start_thread, &mt_vmm_info[newcpu]);
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assert(error == 0);
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}
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static int
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fbsdrun_deletecpu(struct vmctx *ctx, int vcpu)
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{
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if (!CPU_ISSET(vcpu, &cpumask)) {
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fprintf(stderr, "Attempting to delete unknown cpu %d\n", vcpu);
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exit(1);
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}
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CPU_CLR_ATOMIC(vcpu, &cpumask);
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return (CPU_EMPTY(&cpumask));
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}
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static int
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vmexit_handle_notify(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu,
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uint32_t eax)
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{
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#if BHYVE_DEBUG
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/*
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* put guest-driven debug here
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*/
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#endif
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return (VMEXIT_CONTINUE);
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}
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static int
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vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu)
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{
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int error;
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int bytes, port, in, out;
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int vcpu;
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vcpu = *pvcpu;
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port = vme->u.inout.port;
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bytes = vme->u.inout.bytes;
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in = vme->u.inout.in;
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out = !in;
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/* Extra-special case of host notifications */
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if (out && port == GUEST_NIO_PORT) {
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error = vmexit_handle_notify(ctx, vme, pvcpu, vme->u.inout.eax);
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return (error);
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}
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error = emulate_inout(ctx, vcpu, vme, strictio);
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if (error) {
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fprintf(stderr, "Unhandled %s%c 0x%04x at 0x%lx\n",
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in ? "in" : "out",
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bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'),
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port, vmexit->rip);
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return (VMEXIT_ABORT);
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} else {
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return (VMEXIT_CONTINUE);
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}
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}
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static int
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vmexit_rdmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu)
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{
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uint64_t val;
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uint32_t eax, edx;
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int error;
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val = 0;
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error = emulate_rdmsr(ctx, *pvcpu, vme->u.msr.code, &val);
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if (error != 0) {
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fprintf(stderr, "rdmsr to register %#x on vcpu %d\n",
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vme->u.msr.code, *pvcpu);
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if (strictmsr) {
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vm_inject_gp(ctx, *pvcpu);
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return (VMEXIT_CONTINUE);
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}
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}
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eax = val;
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error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RAX, eax);
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assert(error == 0);
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edx = val >> 32;
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error = vm_set_register(ctx, *pvcpu, VM_REG_GUEST_RDX, edx);
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assert(error == 0);
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return (VMEXIT_CONTINUE);
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}
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static int
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vmexit_wrmsr(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu)
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{
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int error;
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error = emulate_wrmsr(ctx, *pvcpu, vme->u.msr.code, vme->u.msr.wval);
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if (error != 0) {
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fprintf(stderr, "wrmsr to register %#x(%#lx) on vcpu %d\n",
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vme->u.msr.code, vme->u.msr.wval, *pvcpu);
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if (strictmsr) {
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vm_inject_gp(ctx, *pvcpu);
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return (VMEXIT_CONTINUE);
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}
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}
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return (VMEXIT_CONTINUE);
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}
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static int
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vmexit_spinup_ap(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu)
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{
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(void)spinup_ap(ctx, *pvcpu,
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vme->u.spinup_ap.vcpu, vme->u.spinup_ap.rip);
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return (VMEXIT_CONTINUE);
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}
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#define DEBUG_EPT_MISCONFIG
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#ifdef DEBUG_EPT_MISCONFIG
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#define EXIT_REASON_EPT_MISCONFIG 49
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#define VMCS_GUEST_PHYSICAL_ADDRESS 0x00002400
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#define VMCS_IDENT(x) ((x) | 0x80000000)
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static uint64_t ept_misconfig_gpa, ept_misconfig_pte[4];
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static int ept_misconfig_ptenum;
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#endif
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static int
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vmexit_vmx(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
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{
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fprintf(stderr, "vm exit[%d]\n", *pvcpu);
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fprintf(stderr, "\treason\t\tVMX\n");
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fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip);
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fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length);
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fprintf(stderr, "\tstatus\t\t%d\n", vmexit->u.vmx.status);
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fprintf(stderr, "\texit_reason\t%u\n", vmexit->u.vmx.exit_reason);
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fprintf(stderr, "\tqualification\t0x%016lx\n",
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vmexit->u.vmx.exit_qualification);
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fprintf(stderr, "\tinst_type\t\t%d\n", vmexit->u.vmx.inst_type);
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fprintf(stderr, "\tinst_error\t\t%d\n", vmexit->u.vmx.inst_error);
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#ifdef DEBUG_EPT_MISCONFIG
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if (vmexit->u.vmx.exit_reason == EXIT_REASON_EPT_MISCONFIG) {
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vm_get_register(ctx, *pvcpu,
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VMCS_IDENT(VMCS_GUEST_PHYSICAL_ADDRESS),
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&ept_misconfig_gpa);
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vm_get_gpa_pmap(ctx, ept_misconfig_gpa, ept_misconfig_pte,
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&ept_misconfig_ptenum);
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fprintf(stderr, "\tEPT misconfiguration:\n");
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fprintf(stderr, "\t\tGPA: %#lx\n", ept_misconfig_gpa);
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fprintf(stderr, "\t\tPTE(%d): %#lx %#lx %#lx %#lx\n",
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ept_misconfig_ptenum, ept_misconfig_pte[0],
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ept_misconfig_pte[1], ept_misconfig_pte[2],
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ept_misconfig_pte[3]);
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}
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#endif /* DEBUG_EPT_MISCONFIG */
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return (VMEXIT_ABORT);
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}
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static int
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vmexit_svm(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
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{
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fprintf(stderr, "vm exit[%d]\n", *pvcpu);
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fprintf(stderr, "\treason\t\tSVM\n");
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fprintf(stderr, "\trip\t\t0x%016lx\n", vmexit->rip);
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fprintf(stderr, "\tinst_length\t%d\n", vmexit->inst_length);
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fprintf(stderr, "\texitcode\t%#lx\n", vmexit->u.svm.exitcode);
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fprintf(stderr, "\texitinfo1\t%#lx\n", vmexit->u.svm.exitinfo1);
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fprintf(stderr, "\texitinfo2\t%#lx\n", vmexit->u.svm.exitinfo2);
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return (VMEXIT_ABORT);
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}
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static int
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vmexit_bogus(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
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{
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assert(vmexit->inst_length == 0);
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stats.vmexit_bogus++;
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return (VMEXIT_CONTINUE);
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}
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static int
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vmexit_reqidle(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
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{
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assert(vmexit->inst_length == 0);
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stats.vmexit_reqidle++;
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return (VMEXIT_CONTINUE);
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}
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static int
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vmexit_hlt(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
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{
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stats.vmexit_hlt++;
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/*
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* Just continue execution with the next instruction. We use
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* the HLT VM exit as a way to be friendly with the host
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* scheduler.
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*/
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return (VMEXIT_CONTINUE);
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}
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static int
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vmexit_pause(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
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{
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stats.vmexit_pause++;
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return (VMEXIT_CONTINUE);
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}
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static int
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vmexit_mtrap(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
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{
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assert(vmexit->inst_length == 0);
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stats.vmexit_mtrap++;
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|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_inst_emul(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
|
|
{
|
|
int err, i;
|
|
struct vie *vie;
|
|
|
|
stats.vmexit_inst_emul++;
|
|
|
|
vie = &vmexit->u.inst_emul.vie;
|
|
err = emulate_mem(ctx, *pvcpu, vmexit->u.inst_emul.gpa,
|
|
vie, &vmexit->u.inst_emul.paging);
|
|
|
|
if (err) {
|
|
if (err == ESRCH) {
|
|
fprintf(stderr, "Unhandled memory access to 0x%lx\n",
|
|
vmexit->u.inst_emul.gpa);
|
|
}
|
|
|
|
fprintf(stderr, "Failed to emulate instruction [");
|
|
for (i = 0; i < vie->num_valid; i++) {
|
|
fprintf(stderr, "0x%02x%s", vie->inst[i],
|
|
i != (vie->num_valid - 1) ? " " : "");
|
|
}
|
|
fprintf(stderr, "] at 0x%lx\n", vmexit->rip);
|
|
return (VMEXIT_ABORT);
|
|
}
|
|
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER;
|
|
static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER;
|
|
|
|
static int
|
|
vmexit_suspend(struct vmctx *ctx, struct vm_exit *vmexit, int *pvcpu)
|
|
{
|
|
enum vm_suspend_how how;
|
|
|
|
how = vmexit->u.suspended.how;
|
|
|
|
fbsdrun_deletecpu(ctx, *pvcpu);
|
|
|
|
if (*pvcpu != BSP) {
|
|
pthread_mutex_lock(&resetcpu_mtx);
|
|
pthread_cond_signal(&resetcpu_cond);
|
|
pthread_mutex_unlock(&resetcpu_mtx);
|
|
pthread_exit(NULL);
|
|
}
|
|
|
|
pthread_mutex_lock(&resetcpu_mtx);
|
|
while (!CPU_EMPTY(&cpumask)) {
|
|
pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx);
|
|
}
|
|
pthread_mutex_unlock(&resetcpu_mtx);
|
|
|
|
switch (how) {
|
|
case VM_SUSPEND_RESET:
|
|
exit(0);
|
|
case VM_SUSPEND_POWEROFF:
|
|
exit(1);
|
|
case VM_SUSPEND_HALT:
|
|
exit(2);
|
|
case VM_SUSPEND_TRIPLEFAULT:
|
|
exit(3);
|
|
default:
|
|
fprintf(stderr, "vmexit_suspend: invalid reason %d\n", how);
|
|
exit(100);
|
|
}
|
|
return (0); /* NOTREACHED */
|
|
}
|
|
|
|
static vmexit_handler_t handler[VM_EXITCODE_MAX] = {
|
|
[VM_EXITCODE_INOUT] = vmexit_inout,
|
|
[VM_EXITCODE_INOUT_STR] = vmexit_inout,
|
|
[VM_EXITCODE_VMX] = vmexit_vmx,
|
|
[VM_EXITCODE_SVM] = vmexit_svm,
|
|
[VM_EXITCODE_BOGUS] = vmexit_bogus,
|
|
[VM_EXITCODE_REQIDLE] = vmexit_reqidle,
|
|
[VM_EXITCODE_RDMSR] = vmexit_rdmsr,
|
|
[VM_EXITCODE_WRMSR] = vmexit_wrmsr,
|
|
[VM_EXITCODE_MTRAP] = vmexit_mtrap,
|
|
[VM_EXITCODE_INST_EMUL] = vmexit_inst_emul,
|
|
[VM_EXITCODE_SPINUP_AP] = vmexit_spinup_ap,
|
|
[VM_EXITCODE_SUSPENDED] = vmexit_suspend,
|
|
[VM_EXITCODE_TASK_SWITCH] = vmexit_task_switch,
|
|
};
|
|
|
|
static void
|
|
vm_loop(struct vmctx *ctx, int vcpu, uint64_t startrip)
|
|
{
|
|
int error, rc;
|
|
enum vm_exitcode exitcode;
|
|
cpuset_t active_cpus;
|
|
|
|
if (vcpumap[vcpu] != NULL) {
|
|
error = pthread_setaffinity_np(pthread_self(),
|
|
sizeof(cpuset_t), vcpumap[vcpu]);
|
|
assert(error == 0);
|
|
}
|
|
|
|
error = vm_active_cpus(ctx, &active_cpus);
|
|
assert(CPU_ISSET(vcpu, &active_cpus));
|
|
|
|
error = vm_set_register(ctx, vcpu, VM_REG_GUEST_RIP, startrip);
|
|
assert(error == 0);
|
|
|
|
while (1) {
|
|
error = vm_run(ctx, vcpu, &vmexit[vcpu]);
|
|
if (error != 0)
|
|
break;
|
|
|
|
exitcode = vmexit[vcpu].exitcode;
|
|
if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) {
|
|
fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n",
|
|
exitcode);
|
|
exit(1);
|
|
}
|
|
|
|
rc = (*handler[exitcode])(ctx, &vmexit[vcpu], &vcpu);
|
|
|
|
switch (rc) {
|
|
case VMEXIT_CONTINUE:
|
|
break;
|
|
case VMEXIT_ABORT:
|
|
abort();
|
|
default:
|
|
exit(1);
|
|
}
|
|
}
|
|
fprintf(stderr, "vm_run error %d, errno %d\n", error, errno);
|
|
}
|
|
|
|
static int
|
|
num_vcpus_allowed(struct vmctx *ctx)
|
|
{
|
|
int tmp, error;
|
|
|
|
error = vm_get_capability(ctx, BSP, VM_CAP_UNRESTRICTED_GUEST, &tmp);
|
|
|
|
/*
|
|
* The guest is allowed to spinup more than one processor only if the
|
|
* UNRESTRICTED_GUEST capability is available.
|
|
*/
|
|
if (error == 0)
|
|
return (VM_MAXCPU);
|
|
else
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
fbsdrun_set_capabilities(struct vmctx *ctx, int cpu)
|
|
{
|
|
int err, tmp;
|
|
|
|
if (fbsdrun_vmexit_on_hlt()) {
|
|
err = vm_get_capability(ctx, cpu, VM_CAP_HALT_EXIT, &tmp);
|
|
if (err < 0) {
|
|
fprintf(stderr, "VM exit on HLT not supported\n");
|
|
exit(1);
|
|
}
|
|
vm_set_capability(ctx, cpu, VM_CAP_HALT_EXIT, 1);
|
|
if (cpu == BSP)
|
|
handler[VM_EXITCODE_HLT] = vmexit_hlt;
|
|
}
|
|
|
|
if (fbsdrun_vmexit_on_pause()) {
|
|
/*
|
|
* pause exit support required for this mode
|
|
*/
|
|
err = vm_get_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, &tmp);
|
|
if (err < 0) {
|
|
fprintf(stderr,
|
|
"SMP mux requested, no pause support\n");
|
|
exit(1);
|
|
}
|
|
vm_set_capability(ctx, cpu, VM_CAP_PAUSE_EXIT, 1);
|
|
if (cpu == BSP)
|
|
handler[VM_EXITCODE_PAUSE] = vmexit_pause;
|
|
}
|
|
|
|
if (x2apic_mode)
|
|
err = vm_set_x2apic_state(ctx, cpu, X2APIC_ENABLED);
|
|
else
|
|
err = vm_set_x2apic_state(ctx, cpu, X2APIC_DISABLED);
|
|
|
|
if (err) {
|
|
fprintf(stderr, "Unable to set x2apic state (%d)\n", err);
|
|
exit(1);
|
|
}
|
|
|
|
vm_set_capability(ctx, cpu, VM_CAP_ENABLE_INVPCID, 1);
|
|
}
|
|
|
|
static struct vmctx *
|
|
do_open(const char *vmname)
|
|
{
|
|
struct vmctx *ctx;
|
|
int error;
|
|
bool reinit, romboot;
|
|
|
|
reinit = romboot = false;
|
|
|
|
if (lpc_bootrom())
|
|
romboot = true;
|
|
|
|
error = vm_create(vmname);
|
|
if (error) {
|
|
if (errno == EEXIST) {
|
|
if (romboot) {
|
|
reinit = true;
|
|
} else {
|
|
/*
|
|
* The virtual machine has been setup by the
|
|
* userspace bootloader.
|
|
*/
|
|
}
|
|
} else {
|
|
perror("vm_create");
|
|
exit(1);
|
|
}
|
|
} else {
|
|
if (!romboot) {
|
|
/*
|
|
* If the virtual machine was just created then a
|
|
* bootrom must be configured to boot it.
|
|
*/
|
|
fprintf(stderr, "virtual machine cannot be booted\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
ctx = vm_open(vmname);
|
|
if (ctx == NULL) {
|
|
perror("vm_open");
|
|
exit(1);
|
|
}
|
|
|
|
if (reinit) {
|
|
error = vm_reinit(ctx);
|
|
if (error) {
|
|
perror("vm_reinit");
|
|
exit(1);
|
|
}
|
|
}
|
|
return (ctx);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int c, error, gdb_port, err, bvmcons;
|
|
int max_vcpus, mptgen, memflags;
|
|
int rtc_localtime;
|
|
struct vmctx *ctx;
|
|
uint64_t rip;
|
|
size_t memsize;
|
|
char *optstr;
|
|
|
|
bvmcons = 0;
|
|
progname = basename(argv[0]);
|
|
gdb_port = 0;
|
|
guest_ncpus = 1;
|
|
memsize = 256 * MB;
|
|
mptgen = 1;
|
|
rtc_localtime = 1;
|
|
memflags = 0;
|
|
|
|
optstr = "abehuwxACHIPSWYp:g:c:s:m:l:U:";
|
|
while ((c = getopt(argc, argv, optstr)) != -1) {
|
|
switch (c) {
|
|
case 'a':
|
|
x2apic_mode = 0;
|
|
break;
|
|
case 'A':
|
|
acpi = 1;
|
|
break;
|
|
case 'b':
|
|
bvmcons = 1;
|
|
break;
|
|
case 'p':
|
|
if (pincpu_parse(optarg) != 0) {
|
|
errx(EX_USAGE, "invalid vcpu pinning "
|
|
"configuration '%s'", optarg);
|
|
}
|
|
break;
|
|
case 'c':
|
|
guest_ncpus = atoi(optarg);
|
|
break;
|
|
case 'C':
|
|
memflags |= VM_MEM_F_INCORE;
|
|
break;
|
|
case 'g':
|
|
gdb_port = atoi(optarg);
|
|
break;
|
|
case 'l':
|
|
if (lpc_device_parse(optarg) != 0) {
|
|
errx(EX_USAGE, "invalid lpc device "
|
|
"configuration '%s'", optarg);
|
|
}
|
|
break;
|
|
case 's':
|
|
if (pci_parse_slot(optarg) != 0)
|
|
exit(1);
|
|
else
|
|
break;
|
|
case 'S':
|
|
memflags |= VM_MEM_F_WIRED;
|
|
break;
|
|
case 'm':
|
|
error = vm_parse_memsize(optarg, &memsize);
|
|
if (error)
|
|
errx(EX_USAGE, "invalid memsize '%s'", optarg);
|
|
break;
|
|
case 'H':
|
|
guest_vmexit_on_hlt = 1;
|
|
break;
|
|
case 'I':
|
|
/*
|
|
* The "-I" option was used to add an ioapic to the
|
|
* virtual machine.
|
|
*
|
|
* An ioapic is now provided unconditionally for each
|
|
* virtual machine and this option is now deprecated.
|
|
*/
|
|
break;
|
|
case 'P':
|
|
guest_vmexit_on_pause = 1;
|
|
break;
|
|
case 'e':
|
|
strictio = 1;
|
|
break;
|
|
case 'u':
|
|
rtc_localtime = 0;
|
|
break;
|
|
case 'U':
|
|
guest_uuid_str = optarg;
|
|
break;
|
|
case 'w':
|
|
strictmsr = 0;
|
|
break;
|
|
case 'W':
|
|
virtio_msix = 0;
|
|
break;
|
|
case 'x':
|
|
x2apic_mode = 1;
|
|
break;
|
|
case 'Y':
|
|
mptgen = 0;
|
|
break;
|
|
case 'h':
|
|
usage(0);
|
|
default:
|
|
usage(1);
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc != 1)
|
|
usage(1);
|
|
|
|
vmname = argv[0];
|
|
ctx = do_open(vmname);
|
|
|
|
if (guest_ncpus < 1) {
|
|
fprintf(stderr, "Invalid guest vCPUs (%d)\n", guest_ncpus);
|
|
exit(1);
|
|
}
|
|
|
|
max_vcpus = num_vcpus_allowed(ctx);
|
|
if (guest_ncpus > max_vcpus) {
|
|
fprintf(stderr, "%d vCPUs requested but only %d available\n",
|
|
guest_ncpus, max_vcpus);
|
|
exit(1);
|
|
}
|
|
|
|
fbsdrun_set_capabilities(ctx, BSP);
|
|
|
|
vm_set_memflags(ctx, memflags);
|
|
err = vm_setup_memory(ctx, memsize, VM_MMAP_ALL);
|
|
if (err) {
|
|
fprintf(stderr, "Unable to setup memory (%d)\n", errno);
|
|
exit(1);
|
|
}
|
|
|
|
error = init_msr();
|
|
if (error) {
|
|
fprintf(stderr, "init_msr error %d", error);
|
|
exit(1);
|
|
}
|
|
|
|
init_mem();
|
|
init_inout();
|
|
atkbdc_init(ctx);
|
|
pci_irq_init(ctx);
|
|
ioapic_init(ctx);
|
|
|
|
rtc_init(ctx, rtc_localtime);
|
|
sci_init(ctx);
|
|
|
|
/*
|
|
* Exit if a device emulation finds an error in its initilization
|
|
*/
|
|
if (init_pci(ctx) != 0)
|
|
exit(1);
|
|
|
|
if (gdb_port != 0)
|
|
init_dbgport(gdb_port);
|
|
|
|
if (bvmcons)
|
|
init_bvmcons();
|
|
|
|
if (lpc_bootrom()) {
|
|
if (vm_set_capability(ctx, BSP, VM_CAP_UNRESTRICTED_GUEST, 1)) {
|
|
fprintf(stderr, "ROM boot failed: unrestricted guest "
|
|
"capability not available\n");
|
|
exit(1);
|
|
}
|
|
error = vcpu_reset(ctx, BSP);
|
|
assert(error == 0);
|
|
}
|
|
|
|
error = vm_get_register(ctx, BSP, VM_REG_GUEST_RIP, &rip);
|
|
assert(error == 0);
|
|
|
|
/*
|
|
* build the guest tables, MP etc.
|
|
*/
|
|
if (mptgen) {
|
|
error = mptable_build(ctx, guest_ncpus);
|
|
if (error)
|
|
exit(1);
|
|
}
|
|
|
|
error = smbios_build(ctx);
|
|
assert(error == 0);
|
|
|
|
if (acpi) {
|
|
error = acpi_build(ctx, guest_ncpus);
|
|
assert(error == 0);
|
|
}
|
|
|
|
if (lpc_bootrom())
|
|
fwctl_init();
|
|
|
|
/*
|
|
* Change the proc title to include the VM name.
|
|
*/
|
|
setproctitle("%s", vmname);
|
|
|
|
/*
|
|
* Add CPU 0
|
|
*/
|
|
fbsdrun_addcpu(ctx, BSP, BSP, rip);
|
|
|
|
/*
|
|
* Head off to the main event dispatch loop
|
|
*/
|
|
mevent_dispatch();
|
|
|
|
exit(1);
|
|
}
|