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https://github.com/freebsd/freebsd-src
synced 2024-07-23 11:16:33 +00:00
bhyve: Push option parsing down into bhyverun_machdep.c
After a couple of attempts I think this is the cleanest approach despite the expense of some code duplication. Quite a few of the single-letter bhyve options are x86-specific. I think that going forward we should strongly discourage the addition of new options and instead configure guests using the more general configuration file syntax. Reviewed by: corvink, jhb MFC after: 2 weeks Sponsored by: Innovate UK Differential Revision: https://reviews.freebsd.org/D41753
This commit is contained in:
Mark Johnston
parent
11c79f9e35
commit
981f9f7495
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@ -34,7 +34,9 @@
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include <vmmapi.h>
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@ -44,6 +46,7 @@
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#include "debug.h"
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#include "fdt.h"
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#include "mem.h"
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#include "pci_emul.h"
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#include "uart_emul.h"
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/* Start of mem + 1M */
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@ -73,6 +76,101 @@ bhyve_init_config(void)
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set_config_value("memory.size", "256M");
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}
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void
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bhyve_usage(int code)
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{
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const char *progname;
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progname = getprogname();
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fprintf(stderr,
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"Usage: %s [-CDHhSW]\n"
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" %*s [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]\n"
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" %*s [-k config_file] [-m mem] [-o var=value]\n"
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" %*s [-p vcpu:hostcpu] [-r file] [-s pci] [-U uuid] vmname\n"
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" -C: include guest memory in core file\n"
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" -c: number of CPUs and/or topology specification\n"
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" -D: destroy on power-off\n"
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" -h: help\n"
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" -k: key=value flat config file\n"
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" -m: memory size\n"
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" -o: set config 'var' to 'value'\n"
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" -p: pin 'vcpu' to 'hostcpu'\n"
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" -S: guest memory cannot be swapped\n"
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" -s: <slot,driver,configinfo> PCI slot config\n"
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" -U: UUID\n"
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" -W: force virtio to use single-vector MSI\n",
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progname, (int)strlen(progname), "", (int)strlen(progname), "",
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(int)strlen(progname), "");
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exit(code);
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}
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void
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bhyve_optparse(int argc, char **argv)
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{
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const char *optstr;
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int c;
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optstr = "hCDSWk:f:o:p:c:s:m:U:";
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while ((c = getopt(argc, argv, optstr)) != -1) {
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switch (c) {
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case 'c':
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if (bhyve_topology_parse(optarg) != 0) {
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errx(EX_USAGE, "invalid cpu topology '%s'",
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optarg);
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}
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break;
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case 'C':
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set_config_bool("memory.guest_in_core", true);
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break;
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case 'D':
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set_config_bool("destroy_on_poweroff", true);
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break;
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case 'k':
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bhyve_parse_simple_config_file(optarg);
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break;
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case 'm':
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set_config_value("memory.size", optarg);
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break;
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case 'o':
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if (!bhyve_parse_config_option(optarg)) {
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errx(EX_USAGE,
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"invalid configuration option '%s'",
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optarg);
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}
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break;
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case 'p':
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if (bhyve_pincpu_parse(optarg) != 0) {
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errx(EX_USAGE,
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"invalid vcpu pinning configuration '%s'",
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optarg);
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}
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break;
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case 's':
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if (strncmp(optarg, "help", strlen(optarg)) == 0) {
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pci_print_supported_devices();
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exit(0);
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} else if (pci_parse_slot(optarg) != 0)
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exit(4);
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else
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break;
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case 'S':
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set_config_bool("memory.wired", true);
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break;
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case 'U':
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set_config_value("uuid", optarg);
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break;
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case 'W':
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set_config_bool("virtio_msix", false);
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break;
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case 'h':
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bhyve_usage(0);
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default:
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bhyve_usage(1);
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}
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}
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}
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void
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bhyve_init_vcpu(struct vcpu *vcpu __unused)
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{
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@ -30,6 +30,7 @@
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#include <err.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <sysexits.h>
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#include <vmmapi.h>
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@ -44,6 +45,7 @@
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#include "inout.h"
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#include "kernemu_dev.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 "rtc.h"
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@ -63,6 +65,185 @@ bhyve_init_config(void)
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set_config_value("lpc.fwcfg", "bhyve");
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}
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void
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bhyve_usage(int code)
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{
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const char *progname;
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progname = getprogname();
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fprintf(stderr,
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"Usage: %s [-AaCDeHhPSuWwxY]\n"
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" %*s [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]\n"
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" %*s [-G port] [-k config_file] [-l lpc] [-m mem] [-o var=value]\n"
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" %*s [-p vcpu:hostcpu] [-r file] [-s pci] [-U uuid] vmname\n"
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" -A: create ACPI tables\n"
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" -a: local apic is in xAPIC mode (deprecated)\n"
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" -C: include guest memory in core file\n"
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" -c: number of CPUs and/or topology specification\n"
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" -D: destroy on power-off\n"
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" -e: exit on unhandled I/O access\n"
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" -G: start a debug server\n"
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" -H: vmexit from the guest on HLT\n"
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" -h: help\n"
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" -k: key=value flat config file\n"
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" -K: PS2 keyboard layout\n"
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" -l: LPC device configuration\n"
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" -m: memory size\n"
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" -o: set config 'var' to 'value'\n"
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" -P: vmexit from the guest on pause\n"
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" -p: pin 'vcpu' to 'hostcpu'\n"
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#ifdef BHYVE_SNAPSHOT
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" -r: path to checkpoint file\n"
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#endif
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" -S: guest memory cannot be swapped\n"
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" -s: <slot,driver,configinfo> PCI slot config\n"
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" -U: UUID\n"
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" -u: RTC keeps UTC time\n"
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" -W: force virtio to use single-vector MSI\n"
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" -w: ignore unimplemented MSRs\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), "", (int)strlen(progname), "",
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(int)strlen(progname), "");
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exit(code);
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}
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void
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bhyve_optparse(int argc, char **argv)
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{
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const char *optstr;
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int c;
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#ifdef BHYVE_SNAPSHOT
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optstr = "aehuwxACDHIPSWYk:f:o:p:G:c:s:m:l:K:U:r:";
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#else
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optstr = "aehuwxACDHIPSWYk:f:o:p:G:c:s:m:l:K:U:";
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#endif
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while ((c = getopt(argc, argv, optstr)) != -1) {
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switch (c) {
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case 'a':
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set_config_bool("x86.x2apic", false);
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break;
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case 'A':
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/*
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* NOP. For backward compatibility. Most systems don't
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* work properly without sane ACPI tables. Therefore,
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* we're always generating them.
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*/
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break;
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case 'D':
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set_config_bool("destroy_on_poweroff", true);
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break;
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case 'p':
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if (bhyve_pincpu_parse(optarg) != 0) {
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errx(EX_USAGE, "invalid vcpu pinning "
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"configuration '%s'", optarg);
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}
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break;
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case 'c':
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if (bhyve_topology_parse(optarg) != 0) {
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errx(EX_USAGE, "invalid cpu topology "
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"'%s'", optarg);
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}
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break;
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case 'C':
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set_config_bool("memory.guest_in_core", true);
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break;
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case 'f':
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if (qemu_fwcfg_parse_cmdline_arg(optarg) != 0) {
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errx(EX_USAGE, "invalid fwcfg item '%s'",
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optarg);
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}
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break;
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case 'G':
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bhyve_parse_gdb_options(optarg);
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break;
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case 'k':
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bhyve_parse_simple_config_file(optarg);
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break;
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case 'K':
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set_config_value("keyboard.layout", optarg);
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break;
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case 'l':
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if (strncmp(optarg, "help", strlen(optarg)) == 0) {
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lpc_print_supported_devices();
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exit(0);
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} else if (lpc_device_parse(optarg) != 0) {
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errx(EX_USAGE, "invalid lpc device "
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"configuration '%s'", optarg);
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}
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break;
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#ifdef BHYVE_SNAPSHOT
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case 'r':
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restore_file = optarg;
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break;
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#endif
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case 's':
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if (strncmp(optarg, "help", strlen(optarg)) == 0) {
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pci_print_supported_devices();
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exit(0);
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} else if (pci_parse_slot(optarg) != 0)
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exit(4);
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else
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break;
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case 'S':
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set_config_bool("memory.wired", true);
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break;
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case 'm':
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set_config_value("memory.size", optarg);
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break;
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case 'o':
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if (!bhyve_parse_config_option(optarg)) {
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errx(EX_USAGE,
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"invalid configuration option '%s'",
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optarg);
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}
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break;
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case 'H':
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set_config_bool("x86.vmexit_on_hlt", true);
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break;
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case 'I':
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/*
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* The "-I" option was used to add an ioapic to the
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* virtual machine.
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*
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* An ioapic is now provided unconditionally for each
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* virtual machine and this option is now deprecated.
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*/
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break;
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case 'P':
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set_config_bool("x86.vmexit_on_pause", true);
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break;
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case 'e':
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set_config_bool("x86.strictio", true);
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break;
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case 'u':
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set_config_bool("rtc.use_localtime", false);
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break;
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case 'U':
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set_config_value("uuid", optarg);
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break;
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case 'w':
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set_config_bool("x86.strictmsr", false);
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break;
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case 'W':
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set_config_bool("virtio_msix", false);
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break;
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case 'x':
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set_config_bool("x86.x2apic", true);
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break;
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case 'Y':
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set_config_bool("x86.mptable", false);
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break;
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case 'h':
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bhyve_usage(0);
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default:
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bhyve_usage(1);
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}
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}
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}
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void
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bhyve_init_vcpu(struct vcpu *vcpu)
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{
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@ -100,7 +100,6 @@ uint16_t cpu_cores, cpu_sockets, cpu_threads;
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int raw_stdio = 0;
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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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@ -115,48 +114,6 @@ static struct vcpu_info {
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static cpuset_t **vcpumap;
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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 [-AaCDeHhPSuWwxY]\n"
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" %*s [-c [[cpus=]numcpus][,sockets=n][,cores=n][,threads=n]]\n"
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" %*s [-G port] [-k config_file] [-l lpc] [-m mem] [-o var=value]\n"
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" %*s [-p vcpu:hostcpu] [-r file] [-s pci] [-U uuid] vmname\n"
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" -A: create ACPI tables\n"
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" -a: local apic is in xAPIC mode (deprecated)\n"
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" -C: include guest memory in core file\n"
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" -c: number of CPUs and/or topology specification\n"
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" -D: destroy on power-off\n"
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" -e: exit on unhandled I/O access\n"
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" -G: start a debug server\n"
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" -H: vmexit from the guest on HLT\n"
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" -h: help\n"
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" -k: key=value flat config file\n"
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" -K: PS2 keyboard layout\n"
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" -l: LPC device configuration\n"
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" -m: memory size\n"
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" -o: set config 'var' to 'value'\n"
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" -P: vmexit from the guest on pause\n"
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" -p: pin 'vcpu' to 'hostcpu'\n"
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#ifdef BHYVE_SNAPSHOT
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" -r: path to checkpoint file\n"
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#endif
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" -S: guest memory cannot be swapped\n"
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" -s: <slot,driver,configinfo> PCI slot config\n"
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" -U: UUID\n"
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" -u: RTC keeps UTC time\n"
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" -W: force virtio to use single-vector MSI\n"
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" -w: ignore unimplemented MSRs\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), "", (int)strlen(progname), "",
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(int)strlen(progname), "");
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exit(code);
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}
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/*
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* XXX This parser is known to have the following issues:
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* 1. It accepts null key=value tokens ",," as setting "cpus" to an
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@ -165,8 +122,8 @@ usage(int code)
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* The acceptance of a null specification ('-c ""') is by design to match the
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* manual page syntax specification, this results in a topology of 1 vCPU.
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*/
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static int
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topology_parse(const char *opt)
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int
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bhyve_topology_parse(const char *opt)
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{
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char *cp, *str, *tofree;
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@ -275,8 +232,8 @@ calc_topology(void)
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guest_ncpus = ncpus;
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}
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static int
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pincpu_parse(const char *opt)
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int
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bhyve_pincpu_parse(const char *opt)
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{
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const char *value;
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char *newval;
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@ -619,8 +576,8 @@ do_open(const char *vmname)
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return (ctx);
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}
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static bool
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parse_config_option(const char *option)
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bool
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bhyve_parse_config_option(const char *option)
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{
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const char *value;
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char *path;
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@ -635,8 +592,8 @@ parse_config_option(const char *option)
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return (true);
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}
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static void
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parse_simple_config_file(const char *path)
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void
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bhyve_parse_simple_config_file(const char *path)
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{
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FILE *fp;
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char *line, *cp;
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@ -655,7 +612,7 @@ parse_simple_config_file(const char *path)
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cp = strchr(line, '\n');
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if (cp != NULL)
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*cp = '\0';
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if (!parse_config_option(line))
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if (!bhyve_parse_config_option(line))
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errx(4, "%s line %u: invalid config option '%s'", path,
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lineno, line);
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}
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@ -664,8 +621,8 @@ parse_simple_config_file(const char *path)
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}
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#ifdef BHYVE_GDB
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static void
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parse_gdb_options(const char *opt)
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void
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bhyve_parse_gdb_options(const char *opt)
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{
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const char *sport;
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char *colon;
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|
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@ -692,12 +649,12 @@ parse_gdb_options(const char *opt)
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int
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main(int argc, char *argv[])
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{
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int c, error;
|
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int error;
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int max_vcpus, memflags;
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struct vcpu *bsp;
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struct vmctx *ctx;
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size_t memsize;
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const char *optstr, *value, *vmname;
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const char *value, *vmname;
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#ifdef BHYVE_SNAPSHOT
|
||||
char *restore_file;
|
||||
struct restore_state rstate;
|
||||
|
|
@ -706,149 +663,12 @@ main(int argc, char *argv[])
|
|||
#endif
|
||||
|
||||
bhyve_init_config();
|
||||
|
||||
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) {
|
||||
#ifdef __amd64__
|
||||
case 'a':
|
||||
set_config_bool("x86.x2apic", false);
|
||||
break;
|
||||
#endif
|
||||
case 'A':
|
||||
/*
|
||||
* NOP. For backward compatibility. Most systems don't
|
||||
* work properly without sane ACPI tables. Therefore,
|
||||
* we're always generating them.
|
||||
*/
|
||||
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;
|
||||
#ifdef BHYVE_GDB
|
||||
case 'G':
|
||||
parse_gdb_options(optarg);
|
||||
break;
|
||||
#endif
|
||||
case 'k':
|
||||
parse_simple_config_file(optarg);
|
||||
break;
|
||||
case 'K':
|
||||
set_config_value("keyboard.layout", optarg);
|
||||
break;
|
||||
#ifdef __amd64__
|
||||
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;
|
||||
#endif
|
||||
#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;
|
||||
#ifdef __amd64__
|
||||
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;
|
||||
#endif
|
||||
case 'U':
|
||||
set_config_value("uuid", optarg);
|
||||
break;
|
||||
#ifdef __amd64__
|
||||
case 'w':
|
||||
set_config_bool("x86.strictmsr", false);
|
||||
break;
|
||||
#endif
|
||||
case 'W':
|
||||
set_config_bool("virtio_msix", false);
|
||||
break;
|
||||
#ifdef __amd64__
|
||||
case 'x':
|
||||
set_config_bool("x86.x2apic", true);
|
||||
break;
|
||||
case 'Y':
|
||||
set_config_bool("x86.mptable", false);
|
||||
break;
|
||||
#endif
|
||||
case 'h':
|
||||
usage(0);
|
||||
default:
|
||||
usage(1);
|
||||
}
|
||||
}
|
||||
bhyve_optparse(argc, argv);
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (argc > 1)
|
||||
usage(1);
|
||||
bhyve_usage(1);
|
||||
|
||||
#ifdef BHYVE_SNAPSHOT
|
||||
if (restore_file != NULL) {
|
||||
|
|
@ -869,7 +689,7 @@ main(int argc, char *argv[])
|
|||
|
||||
vmname = get_config_value("name");
|
||||
if (vmname == NULL)
|
||||
usage(1);
|
||||
bhyve_usage(1);
|
||||
|
||||
if (get_config_bool_default("config.dump", false)) {
|
||||
dump_config();
|
||||
|
|
|
|||
|
|
@ -58,6 +58,18 @@ typedef int (*vmexit_handler_t)(struct vmctx *, struct vcpu *, struct vm_run *);
|
|||
|
||||
/* Interfaces implemented by machine-dependent code. */
|
||||
void bhyve_init_config(void);
|
||||
void bhyve_optparse(int argc, char **argv);
|
||||
void bhyve_usage(int code);
|
||||
|
||||
/* Interfaces used by command-line option-parsing code. */
|
||||
bool bhyve_parse_config_option(const char *option);
|
||||
void bhyve_parse_simple_config_file(const char *path);
|
||||
#ifdef BHYVE_GDB
|
||||
void bhyve_parse_gdb_options(const char *opt);
|
||||
#endif
|
||||
int bhyve_pincpu_parse(const char *opt);
|
||||
int bhyve_topology_parse(const char *opt);
|
||||
|
||||
void bhyve_init_vcpu(struct vcpu *vcpu);
|
||||
void bhyve_start_vcpu(struct vcpu *vcpu, bool bsp);
|
||||
int bhyve_init_platform(struct vmctx *ctx, struct vcpu *bsp);
|
||||
|
|
|
|||
Loading…
Reference in a new issue