At the moment, only a TPM passthru is supported. The cmdline looks like: -l tpm,passthru,/dev/tpm0 Reviewed by: markj MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D32961
1623 lines
38 KiB
C
1623 lines
38 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2011 NetApp, Inc.
|
|
* 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 NETAPP, INC ``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 NETAPP, INC 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>
|
|
#include <sys/types.h>
|
|
#ifndef WITHOUT_CAPSICUM
|
|
#include <sys/capsicum.h>
|
|
#endif
|
|
#include <sys/mman.h>
|
|
#ifdef BHYVE_SNAPSHOT
|
|
#include <sys/socket.h>
|
|
#include <sys/stat.h>
|
|
#endif
|
|
#include <sys/time.h>
|
|
#ifdef BHYVE_SNAPSHOT
|
|
#include <sys/un.h>
|
|
#endif
|
|
|
|
#include <amd64/vmm/intel/vmcs.h>
|
|
#include <x86/apicreg.h>
|
|
|
|
#include <machine/atomic.h>
|
|
#include <machine/segments.h>
|
|
|
|
#ifndef WITHOUT_CAPSICUM
|
|
#include <capsicum_helpers.h>
|
|
#endif
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#ifdef BHYVE_SNAPSHOT
|
|
#include <fcntl.h>
|
|
#endif
|
|
#include <libgen.h>
|
|
#include <unistd.h>
|
|
#include <assert.h>
|
|
#include <pthread.h>
|
|
#include <pthread_np.h>
|
|
#include <sysexits.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#ifdef BHYVE_SNAPSHOT
|
|
#include <ucl.h>
|
|
#include <unistd.h>
|
|
|
|
#include <libxo/xo.h>
|
|
#endif
|
|
|
|
#include <machine/vmm.h>
|
|
#ifndef WITHOUT_CAPSICUM
|
|
#include <machine/vmm_dev.h>
|
|
#endif
|
|
#include <machine/vmm_instruction_emul.h>
|
|
#include <vmmapi.h>
|
|
|
|
#include "bhyverun.h"
|
|
#include "acpi.h"
|
|
#include "atkbdc.h"
|
|
#include "bootrom.h"
|
|
#include "config.h"
|
|
#include "inout.h"
|
|
#include "debug.h"
|
|
#include "e820.h"
|
|
#include "fwctl.h"
|
|
#include "gdb.h"
|
|
#include "ioapic.h"
|
|
#include "kernemu_dev.h"
|
|
#include "mem.h"
|
|
#include "mevent.h"
|
|
#include "mptbl.h"
|
|
#include "pci_emul.h"
|
|
#include "pci_irq.h"
|
|
#include "pci_lpc.h"
|
|
#include "qemu_fwcfg.h"
|
|
#include "smbiostbl.h"
|
|
#ifdef BHYVE_SNAPSHOT
|
|
#include "snapshot.h"
|
|
#endif
|
|
#include "tpm_device.h"
|
|
#include "xmsr.h"
|
|
#include "spinup_ap.h"
|
|
#include "rtc.h"
|
|
#include "vmgenc.h"
|
|
|
|
#define MB (1024UL * 1024)
|
|
#define GB (1024UL * MB)
|
|
|
|
static const char * const vmx_exit_reason_desc[] = {
|
|
[EXIT_REASON_EXCEPTION] = "Exception or non-maskable interrupt (NMI)",
|
|
[EXIT_REASON_EXT_INTR] = "External interrupt",
|
|
[EXIT_REASON_TRIPLE_FAULT] = "Triple fault",
|
|
[EXIT_REASON_INIT] = "INIT signal",
|
|
[EXIT_REASON_SIPI] = "Start-up IPI (SIPI)",
|
|
[EXIT_REASON_IO_SMI] = "I/O system-management interrupt (SMI)",
|
|
[EXIT_REASON_SMI] = "Other SMI",
|
|
[EXIT_REASON_INTR_WINDOW] = "Interrupt window",
|
|
[EXIT_REASON_NMI_WINDOW] = "NMI window",
|
|
[EXIT_REASON_TASK_SWITCH] = "Task switch",
|
|
[EXIT_REASON_CPUID] = "CPUID",
|
|
[EXIT_REASON_GETSEC] = "GETSEC",
|
|
[EXIT_REASON_HLT] = "HLT",
|
|
[EXIT_REASON_INVD] = "INVD",
|
|
[EXIT_REASON_INVLPG] = "INVLPG",
|
|
[EXIT_REASON_RDPMC] = "RDPMC",
|
|
[EXIT_REASON_RDTSC] = "RDTSC",
|
|
[EXIT_REASON_RSM] = "RSM",
|
|
[EXIT_REASON_VMCALL] = "VMCALL",
|
|
[EXIT_REASON_VMCLEAR] = "VMCLEAR",
|
|
[EXIT_REASON_VMLAUNCH] = "VMLAUNCH",
|
|
[EXIT_REASON_VMPTRLD] = "VMPTRLD",
|
|
[EXIT_REASON_VMPTRST] = "VMPTRST",
|
|
[EXIT_REASON_VMREAD] = "VMREAD",
|
|
[EXIT_REASON_VMRESUME] = "VMRESUME",
|
|
[EXIT_REASON_VMWRITE] = "VMWRITE",
|
|
[EXIT_REASON_VMXOFF] = "VMXOFF",
|
|
[EXIT_REASON_VMXON] = "VMXON",
|
|
[EXIT_REASON_CR_ACCESS] = "Control-register accesses",
|
|
[EXIT_REASON_DR_ACCESS] = "MOV DR",
|
|
[EXIT_REASON_INOUT] = "I/O instruction",
|
|
[EXIT_REASON_RDMSR] = "RDMSR",
|
|
[EXIT_REASON_WRMSR] = "WRMSR",
|
|
[EXIT_REASON_INVAL_VMCS] =
|
|
"VM-entry failure due to invalid guest state",
|
|
[EXIT_REASON_INVAL_MSR] = "VM-entry failure due to MSR loading",
|
|
[EXIT_REASON_MWAIT] = "MWAIT",
|
|
[EXIT_REASON_MTF] = "Monitor trap flag",
|
|
[EXIT_REASON_MONITOR] = "MONITOR",
|
|
[EXIT_REASON_PAUSE] = "PAUSE",
|
|
[EXIT_REASON_MCE_DURING_ENTRY] =
|
|
"VM-entry failure due to machine-check event",
|
|
[EXIT_REASON_TPR] = "TPR below threshold",
|
|
[EXIT_REASON_APIC_ACCESS] = "APIC access",
|
|
[EXIT_REASON_VIRTUALIZED_EOI] = "Virtualized EOI",
|
|
[EXIT_REASON_GDTR_IDTR] = "Access to GDTR or IDTR",
|
|
[EXIT_REASON_LDTR_TR] = "Access to LDTR or TR",
|
|
[EXIT_REASON_EPT_FAULT] = "EPT violation",
|
|
[EXIT_REASON_EPT_MISCONFIG] = "EPT misconfiguration",
|
|
[EXIT_REASON_INVEPT] = "INVEPT",
|
|
[EXIT_REASON_RDTSCP] = "RDTSCP",
|
|
[EXIT_REASON_VMX_PREEMPT] = "VMX-preemption timer expired",
|
|
[EXIT_REASON_INVVPID] = "INVVPID",
|
|
[EXIT_REASON_WBINVD] = "WBINVD",
|
|
[EXIT_REASON_XSETBV] = "XSETBV",
|
|
[EXIT_REASON_APIC_WRITE] = "APIC write",
|
|
[EXIT_REASON_RDRAND] = "RDRAND",
|
|
[EXIT_REASON_INVPCID] = "INVPCID",
|
|
[EXIT_REASON_VMFUNC] = "VMFUNC",
|
|
[EXIT_REASON_ENCLS] = "ENCLS",
|
|
[EXIT_REASON_RDSEED] = "RDSEED",
|
|
[EXIT_REASON_PM_LOG_FULL] = "Page-modification log full",
|
|
[EXIT_REASON_XSAVES] = "XSAVES",
|
|
[EXIT_REASON_XRSTORS] = "XRSTORS"
|
|
};
|
|
|
|
typedef int (*vmexit_handler_t)(struct vmctx *, struct vcpu *, struct vm_run *);
|
|
|
|
int guest_ncpus;
|
|
uint16_t cpu_cores, cpu_sockets, cpu_threads;
|
|
|
|
int raw_stdio = 0;
|
|
|
|
static char *progname;
|
|
static const int BSP = 0;
|
|
|
|
static cpuset_t cpumask;
|
|
|
|
static void vm_loop(struct vmctx *ctx, struct vcpu *vcpu);
|
|
|
|
static struct vcpu_info {
|
|
struct vmctx *ctx;
|
|
struct vcpu *vcpu;
|
|
int vcpuid;
|
|
} *vcpu_info;
|
|
|
|
static cpuset_t **vcpumap;
|
|
|
|
static void
|
|
usage(int code)
|
|
{
|
|
|
|
fprintf(stderr,
|
|
"Usage: %s [-AaCDeHhPSuWwxY]\n"
|
|
" %*s [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]\n"
|
|
" %*s [-G port] [-k config_file] [-l lpc] [-m mem] [-o var=value]\n"
|
|
" %*s [-p vcpu:hostcpu] [-r file] [-s pci] [-U uuid] vmname\n"
|
|
" -A: create ACPI tables\n"
|
|
" -a: local apic is in xAPIC mode (deprecated)\n"
|
|
" -C: include guest memory in core file\n"
|
|
" -c: number of CPUs and/or topology specification\n"
|
|
" -D: destroy on power-off\n"
|
|
" -e: exit on unhandled I/O access\n"
|
|
" -G: start a debug server\n"
|
|
" -H: vmexit from the guest on HLT\n"
|
|
" -h: help\n"
|
|
" -k: key=value flat config file\n"
|
|
" -K: PS2 keyboard layout\n"
|
|
" -l: LPC device configuration\n"
|
|
" -m: memory size\n"
|
|
" -o: set config 'var' to 'value'\n"
|
|
" -P: vmexit from the guest on pause\n"
|
|
" -p: pin 'vcpu' to 'hostcpu'\n"
|
|
#ifdef BHYVE_SNAPSHOT
|
|
" -r: path to checkpoint file\n"
|
|
#endif
|
|
" -S: guest memory cannot be swapped\n"
|
|
" -s: <slot,driver,configinfo> PCI slot config\n"
|
|
" -U: UUID\n"
|
|
" -u: RTC keeps UTC time\n"
|
|
" -W: force virtio to use single-vector MSI\n"
|
|
" -w: ignore unimplemented MSRs\n"
|
|
" -x: local APIC is in x2APIC mode\n"
|
|
" -Y: disable MPtable generation\n",
|
|
progname, (int)strlen(progname), "", (int)strlen(progname), "",
|
|
(int)strlen(progname), "");
|
|
|
|
exit(code);
|
|
}
|
|
|
|
/*
|
|
* XXX This parser is known to have the following issues:
|
|
* 1. It accepts null key=value tokens ",," as setting "cpus" to an
|
|
* empty string.
|
|
*
|
|
* The acceptance of a null specification ('-c ""') is by design to match the
|
|
* manual page syntax specification, this results in a topology of 1 vCPU.
|
|
*/
|
|
static int
|
|
topology_parse(const char *opt)
|
|
{
|
|
char *cp, *str, *tofree;
|
|
|
|
if (*opt == '\0') {
|
|
set_config_value("sockets", "1");
|
|
set_config_value("cores", "1");
|
|
set_config_value("threads", "1");
|
|
set_config_value("cpus", "1");
|
|
return (0);
|
|
}
|
|
|
|
tofree = str = strdup(opt);
|
|
if (str == NULL)
|
|
errx(4, "Failed to allocate memory");
|
|
|
|
while ((cp = strsep(&str, ",")) != NULL) {
|
|
if (strncmp(cp, "cpus=", strlen("cpus=")) == 0)
|
|
set_config_value("cpus", cp + strlen("cpus="));
|
|
else if (strncmp(cp, "sockets=", strlen("sockets=")) == 0)
|
|
set_config_value("sockets", cp + strlen("sockets="));
|
|
else if (strncmp(cp, "cores=", strlen("cores=")) == 0)
|
|
set_config_value("cores", cp + strlen("cores="));
|
|
else if (strncmp(cp, "threads=", strlen("threads=")) == 0)
|
|
set_config_value("threads", cp + strlen("threads="));
|
|
else if (strchr(cp, '=') != NULL)
|
|
goto out;
|
|
else
|
|
set_config_value("cpus", cp);
|
|
}
|
|
free(tofree);
|
|
return (0);
|
|
|
|
out:
|
|
free(tofree);
|
|
return (-1);
|
|
}
|
|
|
|
static int
|
|
parse_int_value(const char *key, const char *value, int minval, int maxval)
|
|
{
|
|
char *cp;
|
|
long lval;
|
|
|
|
errno = 0;
|
|
lval = strtol(value, &cp, 0);
|
|
if (errno != 0 || *cp != '\0' || cp == value || lval < minval ||
|
|
lval > maxval)
|
|
errx(4, "Invalid value for %s: '%s'", key, value);
|
|
return (lval);
|
|
}
|
|
|
|
/*
|
|
* Set the sockets, cores, threads, and guest_cpus variables based on
|
|
* the configured topology.
|
|
*
|
|
* The limits of UINT16_MAX are due to the types passed to
|
|
* vm_set_topology(). vmm.ko may enforce tighter limits.
|
|
*/
|
|
static void
|
|
calc_topology(void)
|
|
{
|
|
const char *value;
|
|
bool explicit_cpus;
|
|
uint64_t ncpus;
|
|
|
|
value = get_config_value("cpus");
|
|
if (value != NULL) {
|
|
guest_ncpus = parse_int_value("cpus", value, 1, UINT16_MAX);
|
|
explicit_cpus = true;
|
|
} else {
|
|
guest_ncpus = 1;
|
|
explicit_cpus = false;
|
|
}
|
|
value = get_config_value("cores");
|
|
if (value != NULL)
|
|
cpu_cores = parse_int_value("cores", value, 1, UINT16_MAX);
|
|
else
|
|
cpu_cores = 1;
|
|
value = get_config_value("threads");
|
|
if (value != NULL)
|
|
cpu_threads = parse_int_value("threads", value, 1, UINT16_MAX);
|
|
else
|
|
cpu_threads = 1;
|
|
value = get_config_value("sockets");
|
|
if (value != NULL)
|
|
cpu_sockets = parse_int_value("sockets", value, 1, UINT16_MAX);
|
|
else
|
|
cpu_sockets = guest_ncpus;
|
|
|
|
/*
|
|
* Compute sockets * cores * threads avoiding overflow. The
|
|
* range check above insures these are 16 bit values.
|
|
*/
|
|
ncpus = (uint64_t)cpu_sockets * cpu_cores * cpu_threads;
|
|
if (ncpus > UINT16_MAX)
|
|
errx(4, "Computed number of vCPUs too high: %ju",
|
|
(uintmax_t)ncpus);
|
|
|
|
if (explicit_cpus) {
|
|
if (guest_ncpus != (int)ncpus)
|
|
errx(4, "Topology (%d sockets, %d cores, %d threads) "
|
|
"does not match %d vCPUs",
|
|
cpu_sockets, cpu_cores, cpu_threads,
|
|
guest_ncpus);
|
|
} else
|
|
guest_ncpus = ncpus;
|
|
}
|
|
|
|
static int
|
|
pincpu_parse(const char *opt)
|
|
{
|
|
const char *value;
|
|
char *newval;
|
|
char key[16];
|
|
int vcpu, pcpu;
|
|
|
|
if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) {
|
|
fprintf(stderr, "invalid format: %s\n", opt);
|
|
return (-1);
|
|
}
|
|
|
|
if (vcpu < 0) {
|
|
fprintf(stderr, "invalid vcpu '%d'\n", vcpu);
|
|
return (-1);
|
|
}
|
|
|
|
if (pcpu < 0 || pcpu >= CPU_SETSIZE) {
|
|
fprintf(stderr, "hostcpu '%d' outside valid range from "
|
|
"0 to %d\n", pcpu, CPU_SETSIZE - 1);
|
|
return (-1);
|
|
}
|
|
|
|
snprintf(key, sizeof(key), "vcpu.%d.cpuset", vcpu);
|
|
value = get_config_value(key);
|
|
|
|
if (asprintf(&newval, "%s%s%d", value != NULL ? value : "",
|
|
value != NULL ? "," : "", pcpu) == -1) {
|
|
perror("failed to build new cpuset string");
|
|
return (-1);
|
|
}
|
|
|
|
set_config_value(key, newval);
|
|
free(newval);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
parse_cpuset(int vcpu, const char *list, cpuset_t *set)
|
|
{
|
|
char *cp, *token;
|
|
int pcpu, start;
|
|
|
|
CPU_ZERO(set);
|
|
start = -1;
|
|
token = __DECONST(char *, list);
|
|
for (;;) {
|
|
pcpu = strtoul(token, &cp, 0);
|
|
if (cp == token)
|
|
errx(4, "invalid cpuset for vcpu %d: '%s'", vcpu, list);
|
|
if (pcpu < 0 || pcpu >= CPU_SETSIZE)
|
|
errx(4, "hostcpu '%d' outside valid range from 0 to %d",
|
|
pcpu, CPU_SETSIZE - 1);
|
|
switch (*cp) {
|
|
case ',':
|
|
case '\0':
|
|
if (start >= 0) {
|
|
if (start > pcpu)
|
|
errx(4, "Invalid hostcpu range %d-%d",
|
|
start, pcpu);
|
|
while (start < pcpu) {
|
|
CPU_SET(start, set);
|
|
start++;
|
|
}
|
|
start = -1;
|
|
}
|
|
CPU_SET(pcpu, set);
|
|
break;
|
|
case '-':
|
|
if (start >= 0)
|
|
errx(4, "invalid cpuset for vcpu %d: '%s'",
|
|
vcpu, list);
|
|
start = pcpu;
|
|
break;
|
|
default:
|
|
errx(4, "invalid cpuset for vcpu %d: '%s'", vcpu, list);
|
|
}
|
|
if (*cp == '\0')
|
|
break;
|
|
token = cp + 1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
build_vcpumaps(void)
|
|
{
|
|
char key[16];
|
|
const char *value;
|
|
int vcpu;
|
|
|
|
vcpumap = calloc(guest_ncpus, sizeof(*vcpumap));
|
|
for (vcpu = 0; vcpu < guest_ncpus; vcpu++) {
|
|
snprintf(key, sizeof(key), "vcpu.%d.cpuset", vcpu);
|
|
value = get_config_value(key);
|
|
if (value == NULL)
|
|
continue;
|
|
vcpumap[vcpu] = malloc(sizeof(cpuset_t));
|
|
if (vcpumap[vcpu] == NULL)
|
|
err(4, "Failed to allocate cpuset for vcpu %d", vcpu);
|
|
parse_cpuset(vcpu, value, vcpumap[vcpu]);
|
|
}
|
|
}
|
|
|
|
void
|
|
vm_inject_fault(struct vcpu *vcpu, int vector, int errcode_valid,
|
|
int errcode)
|
|
{
|
|
int error, restart_instruction;
|
|
|
|
restart_instruction = 1;
|
|
|
|
error = vm_inject_exception(vcpu, vector, errcode_valid, errcode,
|
|
restart_instruction);
|
|
assert(error == 0);
|
|
}
|
|
|
|
void *
|
|
paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len)
|
|
{
|
|
|
|
return (vm_map_gpa(ctx, gaddr, len));
|
|
}
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
uintptr_t
|
|
paddr_host2guest(struct vmctx *ctx, void *addr)
|
|
{
|
|
return (vm_rev_map_gpa(ctx, addr));
|
|
}
|
|
#endif
|
|
|
|
int
|
|
fbsdrun_virtio_msix(void)
|
|
{
|
|
|
|
return (get_config_bool_default("virtio_msix", true));
|
|
}
|
|
|
|
static void *
|
|
fbsdrun_start_thread(void *param)
|
|
{
|
|
char tname[MAXCOMLEN + 1];
|
|
struct vcpu_info *vi = param;
|
|
int error;
|
|
|
|
snprintf(tname, sizeof(tname), "vcpu %d", vi->vcpuid);
|
|
pthread_set_name_np(pthread_self(), tname);
|
|
|
|
if (vcpumap[vi->vcpuid] != NULL) {
|
|
error = pthread_setaffinity_np(pthread_self(),
|
|
sizeof(cpuset_t), vcpumap[vi->vcpuid]);
|
|
assert(error == 0);
|
|
}
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
checkpoint_cpu_add(vi->vcpuid);
|
|
#endif
|
|
gdb_cpu_add(vi->vcpu);
|
|
|
|
vm_loop(vi->ctx, vi->vcpu);
|
|
|
|
/* not reached */
|
|
exit(1);
|
|
return (NULL);
|
|
}
|
|
|
|
static void
|
|
fbsdrun_addcpu(struct vcpu_info *vi)
|
|
{
|
|
pthread_t thr;
|
|
int error;
|
|
|
|
error = vm_activate_cpu(vi->vcpu);
|
|
if (error != 0)
|
|
err(EX_OSERR, "could not activate CPU %d", vi->vcpuid);
|
|
|
|
CPU_SET_ATOMIC(vi->vcpuid, &cpumask);
|
|
|
|
vm_suspend_cpu(vi->vcpu);
|
|
|
|
error = pthread_create(&thr, NULL, fbsdrun_start_thread, vi);
|
|
assert(error == 0);
|
|
}
|
|
|
|
static void
|
|
fbsdrun_deletecpu(int vcpu)
|
|
{
|
|
static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER;
|
|
static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER;
|
|
|
|
pthread_mutex_lock(&resetcpu_mtx);
|
|
if (!CPU_ISSET(vcpu, &cpumask)) {
|
|
fprintf(stderr, "Attempting to delete unknown cpu %d\n", vcpu);
|
|
exit(4);
|
|
}
|
|
|
|
CPU_CLR(vcpu, &cpumask);
|
|
|
|
if (vcpu != BSP) {
|
|
pthread_cond_signal(&resetcpu_cond);
|
|
pthread_mutex_unlock(&resetcpu_mtx);
|
|
pthread_exit(NULL);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
while (!CPU_EMPTY(&cpumask)) {
|
|
pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx);
|
|
}
|
|
pthread_mutex_unlock(&resetcpu_mtx);
|
|
}
|
|
|
|
static int
|
|
vmexit_inout(struct vmctx *ctx, struct vcpu *vcpu, struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
int error;
|
|
int bytes, port, in;
|
|
|
|
vme = vmrun->vm_exit;
|
|
port = vme->u.inout.port;
|
|
bytes = vme->u.inout.bytes;
|
|
in = vme->u.inout.in;
|
|
|
|
error = emulate_inout(ctx, vcpu, vme);
|
|
if (error) {
|
|
fprintf(stderr, "Unhandled %s%c 0x%04x at 0x%lx\n",
|
|
in ? "in" : "out",
|
|
bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'),
|
|
port, vme->rip);
|
|
return (VMEXIT_ABORT);
|
|
} else {
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
}
|
|
|
|
static int
|
|
vmexit_rdmsr(struct vmctx *ctx __unused, struct vcpu *vcpu,
|
|
struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
uint64_t val;
|
|
uint32_t eax, edx;
|
|
int error;
|
|
|
|
vme = vmrun->vm_exit;
|
|
|
|
val = 0;
|
|
error = emulate_rdmsr(vcpu, vme->u.msr.code, &val);
|
|
if (error != 0) {
|
|
fprintf(stderr, "rdmsr to register %#x on vcpu %d\n",
|
|
vme->u.msr.code, vcpu_id(vcpu));
|
|
if (get_config_bool("x86.strictmsr")) {
|
|
vm_inject_gp(vcpu);
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
}
|
|
|
|
eax = val;
|
|
error = vm_set_register(vcpu, VM_REG_GUEST_RAX, eax);
|
|
assert(error == 0);
|
|
|
|
edx = val >> 32;
|
|
error = vm_set_register(vcpu, VM_REG_GUEST_RDX, edx);
|
|
assert(error == 0);
|
|
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_wrmsr(struct vmctx *ctx __unused, struct vcpu *vcpu,
|
|
struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
int error;
|
|
|
|
vme = vmrun->vm_exit;
|
|
|
|
error = emulate_wrmsr(vcpu, vme->u.msr.code, vme->u.msr.wval);
|
|
if (error != 0) {
|
|
fprintf(stderr, "wrmsr to register %#x(%#lx) on vcpu %d\n",
|
|
vme->u.msr.code, vme->u.msr.wval, vcpu_id(vcpu));
|
|
if (get_config_bool("x86.strictmsr")) {
|
|
vm_inject_gp(vcpu);
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
}
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
#define DEBUG_EPT_MISCONFIG
|
|
#ifdef DEBUG_EPT_MISCONFIG
|
|
#define VMCS_GUEST_PHYSICAL_ADDRESS 0x00002400
|
|
|
|
static uint64_t ept_misconfig_gpa, ept_misconfig_pte[4];
|
|
static int ept_misconfig_ptenum;
|
|
#endif
|
|
|
|
static const char *
|
|
vmexit_vmx_desc(uint32_t exit_reason)
|
|
{
|
|
|
|
if (exit_reason >= nitems(vmx_exit_reason_desc) ||
|
|
vmx_exit_reason_desc[exit_reason] == NULL)
|
|
return ("Unknown");
|
|
return (vmx_exit_reason_desc[exit_reason]);
|
|
}
|
|
|
|
static int
|
|
vmexit_vmx(struct vmctx *ctx, struct vcpu *vcpu, struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
|
|
vme = vmrun->vm_exit;
|
|
|
|
fprintf(stderr, "vm exit[%d]\n", vcpu_id(vcpu));
|
|
fprintf(stderr, "\treason\t\tVMX\n");
|
|
fprintf(stderr, "\trip\t\t0x%016lx\n", vme->rip);
|
|
fprintf(stderr, "\tinst_length\t%d\n", vme->inst_length);
|
|
fprintf(stderr, "\tstatus\t\t%d\n", vme->u.vmx.status);
|
|
fprintf(stderr, "\texit_reason\t%u (%s)\n", vme->u.vmx.exit_reason,
|
|
vmexit_vmx_desc(vme->u.vmx.exit_reason));
|
|
fprintf(stderr, "\tqualification\t0x%016lx\n",
|
|
vme->u.vmx.exit_qualification);
|
|
fprintf(stderr, "\tinst_type\t\t%d\n", vme->u.vmx.inst_type);
|
|
fprintf(stderr, "\tinst_error\t\t%d\n", vme->u.vmx.inst_error);
|
|
#ifdef DEBUG_EPT_MISCONFIG
|
|
if (vme->u.vmx.exit_reason == EXIT_REASON_EPT_MISCONFIG) {
|
|
vm_get_register(vcpu,
|
|
VMCS_IDENT(VMCS_GUEST_PHYSICAL_ADDRESS),
|
|
&ept_misconfig_gpa);
|
|
vm_get_gpa_pmap(ctx, ept_misconfig_gpa, ept_misconfig_pte,
|
|
&ept_misconfig_ptenum);
|
|
fprintf(stderr, "\tEPT misconfiguration:\n");
|
|
fprintf(stderr, "\t\tGPA: %#lx\n", ept_misconfig_gpa);
|
|
fprintf(stderr, "\t\tPTE(%d): %#lx %#lx %#lx %#lx\n",
|
|
ept_misconfig_ptenum, ept_misconfig_pte[0],
|
|
ept_misconfig_pte[1], ept_misconfig_pte[2],
|
|
ept_misconfig_pte[3]);
|
|
}
|
|
#endif /* DEBUG_EPT_MISCONFIG */
|
|
return (VMEXIT_ABORT);
|
|
}
|
|
|
|
static int
|
|
vmexit_svm(struct vmctx *ctx __unused, struct vcpu *vcpu, struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
|
|
vme = vmrun->vm_exit;
|
|
|
|
fprintf(stderr, "vm exit[%d]\n", vcpu_id(vcpu));
|
|
fprintf(stderr, "\treason\t\tSVM\n");
|
|
fprintf(stderr, "\trip\t\t0x%016lx\n", vme->rip);
|
|
fprintf(stderr, "\tinst_length\t%d\n", vme->inst_length);
|
|
fprintf(stderr, "\texitcode\t%#lx\n", vme->u.svm.exitcode);
|
|
fprintf(stderr, "\texitinfo1\t%#lx\n", vme->u.svm.exitinfo1);
|
|
fprintf(stderr, "\texitinfo2\t%#lx\n", vme->u.svm.exitinfo2);
|
|
return (VMEXIT_ABORT);
|
|
}
|
|
|
|
static int
|
|
vmexit_bogus(struct vmctx *ctx __unused, struct vcpu *vcpu __unused,
|
|
struct vm_run *vmrun)
|
|
{
|
|
assert(vmrun->vm_exit->inst_length == 0);
|
|
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_reqidle(struct vmctx *ctx __unused, struct vcpu *vcpu __unused,
|
|
struct vm_run *vmrun)
|
|
{
|
|
assert(vmrun->vm_exit->inst_length == 0);
|
|
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_hlt(struct vmctx *ctx __unused, struct vcpu *vcpu __unused,
|
|
struct vm_run *vmrun __unused)
|
|
{
|
|
/*
|
|
* Just continue execution with the next instruction. We use
|
|
* the HLT VM exit as a way to be friendly with the host
|
|
* scheduler.
|
|
*/
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_pause(struct vmctx *ctx __unused, struct vcpu *vcpu __unused,
|
|
struct vm_run *vmrun __unused)
|
|
{
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_mtrap(struct vmctx *ctx __unused, struct vcpu *vcpu,
|
|
struct vm_run *vmrun)
|
|
{
|
|
assert(vmrun->vm_exit->inst_length == 0);
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
checkpoint_cpu_suspend(vcpu_id(vcpu));
|
|
#endif
|
|
gdb_cpu_mtrap(vcpu);
|
|
#ifdef BHYVE_SNAPSHOT
|
|
checkpoint_cpu_resume(vcpu_id(vcpu));
|
|
#endif
|
|
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_inst_emul(struct vmctx *ctx __unused, struct vcpu *vcpu,
|
|
struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
struct vie *vie;
|
|
int err, i, cs_d;
|
|
enum vm_cpu_mode mode;
|
|
|
|
vme = vmrun->vm_exit;
|
|
|
|
vie = &vme->u.inst_emul.vie;
|
|
if (!vie->decoded) {
|
|
/*
|
|
* Attempt to decode in userspace as a fallback. This allows
|
|
* updating instruction decode in bhyve without rebooting the
|
|
* kernel (rapid prototyping), albeit with much slower
|
|
* emulation.
|
|
*/
|
|
vie_restart(vie);
|
|
mode = vme->u.inst_emul.paging.cpu_mode;
|
|
cs_d = vme->u.inst_emul.cs_d;
|
|
if (vmm_decode_instruction(mode, cs_d, vie) != 0)
|
|
goto fail;
|
|
if (vm_set_register(vcpu, VM_REG_GUEST_RIP,
|
|
vme->rip + vie->num_processed) != 0)
|
|
goto fail;
|
|
}
|
|
|
|
err = emulate_mem(vcpu, vme->u.inst_emul.gpa, vie,
|
|
&vme->u.inst_emul.paging);
|
|
if (err) {
|
|
if (err == ESRCH) {
|
|
EPRINTLN("Unhandled memory access to 0x%lx\n",
|
|
vme->u.inst_emul.gpa);
|
|
}
|
|
goto fail;
|
|
}
|
|
|
|
return (VMEXIT_CONTINUE);
|
|
|
|
fail:
|
|
fprintf(stderr, "Failed to emulate instruction sequence [ ");
|
|
for (i = 0; i < vie->num_valid; i++)
|
|
fprintf(stderr, "%02x", vie->inst[i]);
|
|
FPRINTLN(stderr, " ] at 0x%lx", vme->rip);
|
|
return (VMEXIT_ABORT);
|
|
}
|
|
|
|
static int
|
|
vmexit_suspend(struct vmctx *ctx, struct vcpu *vcpu, struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
enum vm_suspend_how how;
|
|
int vcpuid = vcpu_id(vcpu);
|
|
|
|
vme = vmrun->vm_exit;
|
|
|
|
how = vme->u.suspended.how;
|
|
|
|
fbsdrun_deletecpu(vcpuid);
|
|
|
|
switch (how) {
|
|
case VM_SUSPEND_RESET:
|
|
exit(0);
|
|
case VM_SUSPEND_POWEROFF:
|
|
if (get_config_bool_default("destroy_on_poweroff", false))
|
|
vm_destroy(ctx);
|
|
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 int
|
|
vmexit_debug(struct vmctx *ctx __unused, struct vcpu *vcpu,
|
|
struct vm_run *vmrun __unused)
|
|
{
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
checkpoint_cpu_suspend(vcpu_id(vcpu));
|
|
#endif
|
|
gdb_cpu_suspend(vcpu);
|
|
#ifdef BHYVE_SNAPSHOT
|
|
checkpoint_cpu_resume(vcpu_id(vcpu));
|
|
#endif
|
|
/*
|
|
* XXX-MJ sleep for a short period to avoid chewing up the CPU in the
|
|
* window between activation of the vCPU thread and the STARTUP IPI.
|
|
*/
|
|
usleep(1000);
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_breakpoint(struct vmctx *ctx __unused, struct vcpu *vcpu,
|
|
struct vm_run *vmrun)
|
|
{
|
|
gdb_cpu_breakpoint(vcpu, vmrun->vm_exit);
|
|
return (VMEXIT_CONTINUE);
|
|
}
|
|
|
|
static int
|
|
vmexit_ipi(struct vmctx *ctx __unused, struct vcpu *vcpu __unused,
|
|
struct vm_run *vmrun)
|
|
{
|
|
struct vm_exit *vme;
|
|
cpuset_t *dmask;
|
|
int error = -1;
|
|
int i;
|
|
|
|
dmask = vmrun->cpuset;
|
|
vme = vmrun->vm_exit;
|
|
|
|
switch (vme->u.ipi.mode) {
|
|
case APIC_DELMODE_INIT:
|
|
CPU_FOREACH_ISSET(i, dmask) {
|
|
error = vm_suspend_cpu(vcpu_info[i].vcpu);
|
|
if (error) {
|
|
warnx("%s: failed to suspend cpu %d\n",
|
|
__func__, i);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case APIC_DELMODE_STARTUP:
|
|
CPU_FOREACH_ISSET(i, dmask) {
|
|
spinup_ap(vcpu_info[i].vcpu,
|
|
vme->u.ipi.vector << PAGE_SHIFT);
|
|
}
|
|
error = 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
static const 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_SUSPENDED] = vmexit_suspend,
|
|
[VM_EXITCODE_TASK_SWITCH] = vmexit_task_switch,
|
|
[VM_EXITCODE_DEBUG] = vmexit_debug,
|
|
[VM_EXITCODE_BPT] = vmexit_breakpoint,
|
|
[VM_EXITCODE_IPI] = vmexit_ipi,
|
|
[VM_EXITCODE_HLT] = vmexit_hlt,
|
|
[VM_EXITCODE_PAUSE] = vmexit_pause,
|
|
};
|
|
|
|
static void
|
|
vm_loop(struct vmctx *ctx, struct vcpu *vcpu)
|
|
{
|
|
struct vm_exit vme;
|
|
struct vm_run vmrun;
|
|
int error, rc;
|
|
enum vm_exitcode exitcode;
|
|
cpuset_t active_cpus, dmask;
|
|
|
|
error = vm_active_cpus(ctx, &active_cpus);
|
|
assert(CPU_ISSET(vcpu_id(vcpu), &active_cpus));
|
|
|
|
vmrun.vm_exit = &vme;
|
|
vmrun.cpuset = &dmask;
|
|
vmrun.cpusetsize = sizeof(dmask);
|
|
|
|
while (1) {
|
|
error = vm_run(vcpu, &vmrun);
|
|
if (error != 0)
|
|
break;
|
|
|
|
exitcode = vme.exitcode;
|
|
if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) {
|
|
fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n",
|
|
exitcode);
|
|
exit(4);
|
|
}
|
|
|
|
rc = (*handler[exitcode])(ctx, vcpu, &vmrun);
|
|
|
|
switch (rc) {
|
|
case VMEXIT_CONTINUE:
|
|
break;
|
|
case VMEXIT_ABORT:
|
|
abort();
|
|
default:
|
|
exit(4);
|
|
}
|
|
}
|
|
fprintf(stderr, "vm_run error %d, errno %d\n", error, errno);
|
|
}
|
|
|
|
static int
|
|
num_vcpus_allowed(struct vmctx *ctx, struct vcpu *vcpu)
|
|
{
|
|
uint16_t sockets, cores, threads, maxcpus;
|
|
int tmp, error;
|
|
|
|
/*
|
|
* The guest is allowed to spinup more than one processor only if the
|
|
* UNRESTRICTED_GUEST capability is available.
|
|
*/
|
|
error = vm_get_capability(vcpu, VM_CAP_UNRESTRICTED_GUEST, &tmp);
|
|
if (error != 0)
|
|
return (1);
|
|
|
|
error = vm_get_topology(ctx, &sockets, &cores, &threads, &maxcpus);
|
|
if (error == 0)
|
|
return (maxcpus);
|
|
else
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
fbsdrun_set_capabilities(struct vcpu *vcpu)
|
|
{
|
|
int err, tmp;
|
|
|
|
if (get_config_bool_default("x86.vmexit_on_hlt", false)) {
|
|
err = vm_get_capability(vcpu, VM_CAP_HALT_EXIT, &tmp);
|
|
if (err < 0) {
|
|
fprintf(stderr, "VM exit on HLT not supported\n");
|
|
exit(4);
|
|
}
|
|
vm_set_capability(vcpu, VM_CAP_HALT_EXIT, 1);
|
|
}
|
|
|
|
if (get_config_bool_default("x86.vmexit_on_pause", false)) {
|
|
/*
|
|
* pause exit support required for this mode
|
|
*/
|
|
err = vm_get_capability(vcpu, VM_CAP_PAUSE_EXIT, &tmp);
|
|
if (err < 0) {
|
|
fprintf(stderr,
|
|
"SMP mux requested, no pause support\n");
|
|
exit(4);
|
|
}
|
|
vm_set_capability(vcpu, VM_CAP_PAUSE_EXIT, 1);
|
|
}
|
|
|
|
if (get_config_bool_default("x86.x2apic", false))
|
|
err = vm_set_x2apic_state(vcpu, X2APIC_ENABLED);
|
|
else
|
|
err = vm_set_x2apic_state(vcpu, X2APIC_DISABLED);
|
|
|
|
if (err) {
|
|
fprintf(stderr, "Unable to set x2apic state (%d)\n", err);
|
|
exit(4);
|
|
}
|
|
|
|
vm_set_capability(vcpu, VM_CAP_ENABLE_INVPCID, 1);
|
|
|
|
err = vm_set_capability(vcpu, VM_CAP_IPI_EXIT, 1);
|
|
assert(err == 0);
|
|
}
|
|
|
|
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(4);
|
|
}
|
|
} 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(4);
|
|
}
|
|
}
|
|
|
|
ctx = vm_open(vmname);
|
|
if (ctx == NULL) {
|
|
perror("vm_open");
|
|
exit(4);
|
|
}
|
|
|
|
#ifndef WITHOUT_CAPSICUM
|
|
if (vm_limit_rights(ctx) != 0)
|
|
err(EX_OSERR, "vm_limit_rights");
|
|
#endif
|
|
|
|
if (reinit) {
|
|
error = vm_reinit(ctx);
|
|
if (error) {
|
|
perror("vm_reinit");
|
|
exit(4);
|
|
}
|
|
}
|
|
error = vm_set_topology(ctx, cpu_sockets, cpu_cores, cpu_threads, 0);
|
|
if (error)
|
|
errx(EX_OSERR, "vm_set_topology");
|
|
return (ctx);
|
|
}
|
|
|
|
static void
|
|
spinup_vcpu(struct vcpu_info *vi, bool bsp)
|
|
{
|
|
int error;
|
|
|
|
if (!bsp) {
|
|
fbsdrun_set_capabilities(vi->vcpu);
|
|
|
|
/*
|
|
* Enable the 'unrestricted guest' mode for APs.
|
|
*
|
|
* APs startup in power-on 16-bit mode.
|
|
*/
|
|
error = vm_set_capability(vi->vcpu, VM_CAP_UNRESTRICTED_GUEST, 1);
|
|
assert(error == 0);
|
|
}
|
|
|
|
fbsdrun_addcpu(vi);
|
|
}
|
|
|
|
static bool
|
|
parse_config_option(const char *option)
|
|
{
|
|
const char *value;
|
|
char *path;
|
|
|
|
value = strchr(option, '=');
|
|
if (value == NULL || value[1] == '\0')
|
|
return (false);
|
|
path = strndup(option, value - option);
|
|
if (path == NULL)
|
|
err(4, "Failed to allocate memory");
|
|
set_config_value(path, value + 1);
|
|
return (true);
|
|
}
|
|
|
|
static void
|
|
parse_simple_config_file(const char *path)
|
|
{
|
|
FILE *fp;
|
|
char *line, *cp;
|
|
size_t linecap;
|
|
unsigned int lineno;
|
|
|
|
fp = fopen(path, "r");
|
|
if (fp == NULL)
|
|
err(4, "Failed to open configuration file %s", path);
|
|
line = NULL;
|
|
linecap = 0;
|
|
lineno = 1;
|
|
for (lineno = 1; getline(&line, &linecap, fp) > 0; lineno++) {
|
|
if (*line == '#' || *line == '\n')
|
|
continue;
|
|
cp = strchr(line, '\n');
|
|
if (cp != NULL)
|
|
*cp = '\0';
|
|
if (!parse_config_option(line))
|
|
errx(4, "%s line %u: invalid config option '%s'", path,
|
|
lineno, line);
|
|
}
|
|
free(line);
|
|
fclose(fp);
|
|
}
|
|
|
|
static void
|
|
parse_gdb_options(const char *opt)
|
|
{
|
|
const char *sport;
|
|
char *colon;
|
|
|
|
if (opt[0] == 'w') {
|
|
set_config_bool("gdb.wait", true);
|
|
opt++;
|
|
}
|
|
|
|
colon = strrchr(opt, ':');
|
|
if (colon == NULL) {
|
|
sport = opt;
|
|
} else {
|
|
*colon = '\0';
|
|
colon++;
|
|
sport = colon;
|
|
set_config_value("gdb.address", opt);
|
|
}
|
|
|
|
set_config_value("gdb.port", sport);
|
|
}
|
|
|
|
static void
|
|
set_defaults(void)
|
|
{
|
|
|
|
set_config_bool("acpi_tables", false);
|
|
set_config_value("memory.size", "256M");
|
|
set_config_bool("x86.strictmsr", true);
|
|
set_config_value("lpc.fwcfg", "bhyve");
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int c, error;
|
|
int max_vcpus, memflags;
|
|
struct vcpu *bsp;
|
|
struct vmctx *ctx;
|
|
struct qemu_fwcfg_item *e820_fwcfg_item;
|
|
size_t memsize;
|
|
const char *optstr, *value, *vmname;
|
|
#ifdef BHYVE_SNAPSHOT
|
|
char *restore_file;
|
|
struct restore_state rstate;
|
|
|
|
restore_file = NULL;
|
|
#endif
|
|
|
|
init_config();
|
|
set_defaults();
|
|
progname = basename(argv[0]);
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
optstr = "aehuwxACDHIPSWYk:f:o:p:G:c:s:m:l:K:U:r:";
|
|
#else
|
|
optstr = "aehuwxACDHIPSWYk:f:o:p:G:c:s:m:l:K:U:";
|
|
#endif
|
|
while ((c = getopt(argc, argv, optstr)) != -1) {
|
|
switch (c) {
|
|
case 'a':
|
|
set_config_bool("x86.x2apic", false);
|
|
break;
|
|
case 'A':
|
|
set_config_bool("acpi_tables", true);
|
|
break;
|
|
case 'D':
|
|
set_config_bool("destroy_on_poweroff", true);
|
|
break;
|
|
case 'p':
|
|
if (pincpu_parse(optarg) != 0) {
|
|
errx(EX_USAGE, "invalid vcpu pinning "
|
|
"configuration '%s'", optarg);
|
|
}
|
|
break;
|
|
case 'c':
|
|
if (topology_parse(optarg) != 0) {
|
|
errx(EX_USAGE, "invalid cpu topology "
|
|
"'%s'", optarg);
|
|
}
|
|
break;
|
|
case 'C':
|
|
set_config_bool("memory.guest_in_core", true);
|
|
break;
|
|
case 'f':
|
|
if (qemu_fwcfg_parse_cmdline_arg(optarg) != 0) {
|
|
errx(EX_USAGE, "invalid fwcfg item '%s'", optarg);
|
|
}
|
|
break;
|
|
case 'G':
|
|
parse_gdb_options(optarg);
|
|
break;
|
|
case 'k':
|
|
parse_simple_config_file(optarg);
|
|
break;
|
|
case 'K':
|
|
set_config_value("keyboard.layout", optarg);
|
|
break;
|
|
case 'l':
|
|
if (strncmp(optarg, "help", strlen(optarg)) == 0) {
|
|
lpc_print_supported_devices();
|
|
exit(0);
|
|
} else if (lpc_device_parse(optarg) != 0) {
|
|
errx(EX_USAGE, "invalid lpc device "
|
|
"configuration '%s'", optarg);
|
|
}
|
|
break;
|
|
#ifdef BHYVE_SNAPSHOT
|
|
case 'r':
|
|
restore_file = optarg;
|
|
break;
|
|
#endif
|
|
case 's':
|
|
if (strncmp(optarg, "help", strlen(optarg)) == 0) {
|
|
pci_print_supported_devices();
|
|
exit(0);
|
|
} else if (pci_parse_slot(optarg) != 0)
|
|
exit(4);
|
|
else
|
|
break;
|
|
case 'S':
|
|
set_config_bool("memory.wired", true);
|
|
break;
|
|
case 'm':
|
|
set_config_value("memory.size", optarg);
|
|
break;
|
|
case 'o':
|
|
if (!parse_config_option(optarg))
|
|
errx(EX_USAGE, "invalid configuration option '%s'", optarg);
|
|
break;
|
|
case 'H':
|
|
set_config_bool("x86.vmexit_on_hlt", true);
|
|
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':
|
|
set_config_bool("x86.vmexit_on_pause", true);
|
|
break;
|
|
case 'e':
|
|
set_config_bool("x86.strictio", true);
|
|
break;
|
|
case 'u':
|
|
set_config_bool("rtc.use_localtime", false);
|
|
break;
|
|
case 'U':
|
|
set_config_value("uuid", optarg);
|
|
break;
|
|
case 'w':
|
|
set_config_bool("x86.strictmsr", false);
|
|
break;
|
|
case 'W':
|
|
set_config_bool("virtio_msix", false);
|
|
break;
|
|
case 'x':
|
|
set_config_bool("x86.x2apic", true);
|
|
break;
|
|
case 'Y':
|
|
set_config_bool("x86.mptable", false);
|
|
break;
|
|
case 'h':
|
|
usage(0);
|
|
default:
|
|
usage(1);
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc > 1)
|
|
usage(1);
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
if (restore_file != NULL) {
|
|
error = load_restore_file(restore_file, &rstate);
|
|
if (error) {
|
|
fprintf(stderr, "Failed to read checkpoint info from "
|
|
"file: '%s'.\n", restore_file);
|
|
exit(1);
|
|
}
|
|
vmname = lookup_vmname(&rstate);
|
|
if (vmname != NULL)
|
|
set_config_value("name", vmname);
|
|
}
|
|
#endif
|
|
|
|
if (argc == 1)
|
|
set_config_value("name", argv[0]);
|
|
|
|
vmname = get_config_value("name");
|
|
if (vmname == NULL)
|
|
usage(1);
|
|
|
|
if (get_config_bool_default("config.dump", false)) {
|
|
dump_config();
|
|
exit(1);
|
|
}
|
|
|
|
calc_topology();
|
|
build_vcpumaps();
|
|
|
|
value = get_config_value("memory.size");
|
|
error = vm_parse_memsize(value, &memsize);
|
|
if (error)
|
|
errx(EX_USAGE, "invalid memsize '%s'", value);
|
|
|
|
ctx = do_open(vmname);
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
if (restore_file != NULL) {
|
|
guest_ncpus = lookup_guest_ncpus(&rstate);
|
|
memflags = lookup_memflags(&rstate);
|
|
memsize = lookup_memsize(&rstate);
|
|
}
|
|
|
|
if (guest_ncpus < 1) {
|
|
fprintf(stderr, "Invalid guest vCPUs (%d)\n", guest_ncpus);
|
|
exit(1);
|
|
}
|
|
#endif
|
|
|
|
bsp = vm_vcpu_open(ctx, BSP);
|
|
max_vcpus = num_vcpus_allowed(ctx, bsp);
|
|
if (guest_ncpus > max_vcpus) {
|
|
fprintf(stderr, "%d vCPUs requested but only %d available\n",
|
|
guest_ncpus, max_vcpus);
|
|
exit(4);
|
|
}
|
|
|
|
fbsdrun_set_capabilities(bsp);
|
|
|
|
/* Allocate per-VCPU resources. */
|
|
vcpu_info = calloc(guest_ncpus, sizeof(*vcpu_info));
|
|
for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) {
|
|
vcpu_info[vcpuid].ctx = ctx;
|
|
vcpu_info[vcpuid].vcpuid = vcpuid;
|
|
if (vcpuid == BSP)
|
|
vcpu_info[vcpuid].vcpu = bsp;
|
|
else
|
|
vcpu_info[vcpuid].vcpu = vm_vcpu_open(ctx, vcpuid);
|
|
}
|
|
|
|
memflags = 0;
|
|
if (get_config_bool_default("memory.wired", false))
|
|
memflags |= VM_MEM_F_WIRED;
|
|
if (get_config_bool_default("memory.guest_in_core", false))
|
|
memflags |= VM_MEM_F_INCORE;
|
|
vm_set_memflags(ctx, memflags);
|
|
error = vm_setup_memory(ctx, memsize, VM_MMAP_ALL);
|
|
if (error) {
|
|
fprintf(stderr, "Unable to setup memory (%d)\n", errno);
|
|
exit(4);
|
|
}
|
|
|
|
error = init_msr();
|
|
if (error) {
|
|
fprintf(stderr, "init_msr error %d", error);
|
|
exit(4);
|
|
}
|
|
|
|
init_mem(guest_ncpus);
|
|
init_inout();
|
|
kernemu_dev_init();
|
|
init_bootrom(ctx);
|
|
atkbdc_init(ctx);
|
|
pci_irq_init(ctx);
|
|
ioapic_init(ctx);
|
|
|
|
rtc_init(ctx);
|
|
sci_init(ctx);
|
|
|
|
if (qemu_fwcfg_init(ctx) != 0) {
|
|
fprintf(stderr, "qemu fwcfg initialization error");
|
|
exit(4);
|
|
}
|
|
|
|
if (qemu_fwcfg_add_file("opt/bhyve/hw.ncpu", sizeof(guest_ncpus),
|
|
&guest_ncpus) != 0) {
|
|
fprintf(stderr, "Could not add qemu fwcfg opt/bhyve/hw.ncpu");
|
|
exit(4);
|
|
}
|
|
|
|
if (e820_init(ctx) != 0) {
|
|
fprintf(stderr, "Unable to setup E820");
|
|
exit(4);
|
|
}
|
|
|
|
/*
|
|
* Exit if a device emulation finds an error in its initialization
|
|
*/
|
|
if (init_pci(ctx) != 0) {
|
|
perror("device emulation initialization error");
|
|
exit(4);
|
|
}
|
|
if (init_tpm(ctx) != 0) {
|
|
fprintf(stderr, "Failed to init TPM device");
|
|
exit(4);
|
|
}
|
|
|
|
/*
|
|
* Initialize after PCI, to allow a bootrom file to reserve the high
|
|
* region.
|
|
*/
|
|
if (get_config_bool("acpi_tables"))
|
|
vmgenc_init(ctx);
|
|
|
|
init_gdb(ctx);
|
|
|
|
if (lpc_bootrom()) {
|
|
if (vm_set_capability(bsp, VM_CAP_UNRESTRICTED_GUEST, 1)) {
|
|
fprintf(stderr, "ROM boot failed: unrestricted guest "
|
|
"capability not available\n");
|
|
exit(4);
|
|
}
|
|
error = vcpu_reset(bsp);
|
|
assert(error == 0);
|
|
}
|
|
|
|
/*
|
|
* Add all vCPUs.
|
|
*/
|
|
for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++)
|
|
spinup_vcpu(&vcpu_info[vcpuid], vcpuid == BSP);
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
if (restore_file != NULL) {
|
|
fprintf(stdout, "Pausing pci devs...\r\n");
|
|
if (vm_pause_devices() != 0) {
|
|
fprintf(stderr, "Failed to pause PCI device state.\n");
|
|
exit(1);
|
|
}
|
|
|
|
fprintf(stdout, "Restoring vm mem...\r\n");
|
|
if (restore_vm_mem(ctx, &rstate) != 0) {
|
|
fprintf(stderr, "Failed to restore VM memory.\n");
|
|
exit(1);
|
|
}
|
|
|
|
fprintf(stdout, "Restoring pci devs...\r\n");
|
|
if (vm_restore_devices(&rstate) != 0) {
|
|
fprintf(stderr, "Failed to restore PCI device state.\n");
|
|
exit(1);
|
|
}
|
|
|
|
fprintf(stdout, "Restoring kernel structs...\r\n");
|
|
if (vm_restore_kern_structs(ctx, &rstate) != 0) {
|
|
fprintf(stderr, "Failed to restore kernel structs.\n");
|
|
exit(1);
|
|
}
|
|
|
|
fprintf(stdout, "Resuming pci devs...\r\n");
|
|
if (vm_resume_devices() != 0) {
|
|
fprintf(stderr, "Failed to resume PCI device state.\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* build the guest tables, MP etc.
|
|
*/
|
|
if (get_config_bool_default("x86.mptable", true)) {
|
|
error = mptable_build(ctx, guest_ncpus);
|
|
if (error) {
|
|
perror("error to build the guest tables");
|
|
exit(4);
|
|
}
|
|
}
|
|
|
|
error = smbios_build(ctx);
|
|
if (error != 0)
|
|
exit(4);
|
|
|
|
if (get_config_bool("acpi_tables")) {
|
|
error = acpi_build(ctx, guest_ncpus);
|
|
assert(error == 0);
|
|
}
|
|
|
|
e820_fwcfg_item = e820_get_fwcfg_item();
|
|
if (e820_fwcfg_item == NULL) {
|
|
fprintf(stderr, "invalid e820 table");
|
|
exit(4);
|
|
}
|
|
if (qemu_fwcfg_add_file("etc/e820", e820_fwcfg_item->size,
|
|
e820_fwcfg_item->data) != 0) {
|
|
fprintf(stderr, "could not add qemu fwcfg etc/e820");
|
|
exit(4);
|
|
}
|
|
free(e820_fwcfg_item);
|
|
|
|
if (lpc_bootrom() && strcmp(lpc_fwcfg(), "bhyve") == 0) {
|
|
fwctl_init();
|
|
}
|
|
|
|
/*
|
|
* Change the proc title to include the VM name.
|
|
*/
|
|
setproctitle("%s", vmname);
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
/* initialize mutex/cond variables */
|
|
init_snapshot();
|
|
|
|
/*
|
|
* checkpointing thread for communication with bhyvectl
|
|
*/
|
|
if (init_checkpoint_thread(ctx) != 0)
|
|
errx(EX_OSERR, "Failed to start checkpoint thread");
|
|
#endif
|
|
|
|
#ifndef WITHOUT_CAPSICUM
|
|
caph_cache_catpages();
|
|
|
|
if (caph_limit_stdout() == -1 || caph_limit_stderr() == -1)
|
|
errx(EX_OSERR, "Unable to apply rights for sandbox");
|
|
|
|
if (caph_enter() == -1)
|
|
errx(EX_OSERR, "cap_enter() failed");
|
|
#endif
|
|
|
|
#ifdef BHYVE_SNAPSHOT
|
|
if (restore_file != NULL) {
|
|
destroy_restore_state(&rstate);
|
|
if (vm_restore_time(ctx) < 0)
|
|
err(EX_OSERR, "Unable to restore time");
|
|
|
|
for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++)
|
|
vm_resume_cpu(vcpu_info[vcpuid].vcpu);
|
|
} else
|
|
#endif
|
|
vm_resume_cpu(bsp);
|
|
|
|
/*
|
|
* Head off to the main event dispatch loop
|
|
*/
|
|
mevent_dispatch();
|
|
|
|
exit(4);
|
|
}
|