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acrn-hypervisor/devicemodel/core/main.c

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/*-
* 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.
*
* $FreeBSD$
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <err.h>
#include <errno.h>
#include <libgen.h>
#include <unistd.h>
#include <pthread.h>
#include <sysexits.h>
#include <stdbool.h>
#include <getopt.h>
#include "vmmapi.h"
#include "sw_load.h"
#include "cpuset.h"
#include "dm.h"
#include "acpi.h"
#include "atkbdc.h"
#include "inout.h"
#include "ioapic.h"
#include "mem.h"
#include "mevent.h"
#include "mptbl.h"
#include "pci_core.h"
#include "irq.h"
#include "lpc.h"
#include "rtc.h"
#include "pit.h"
#include "hpet.h"
#include "version.h"
#include "sw_load.h"
#include "monitor.h"
#include "ioc.h"
#include "pm.h"
#include "atomic.h"
#include "tpm.h"
#include "mmio_dev.h"
#include "virtio.h"
#include "pm_vuart.h"
#include "log.h"
#include "pci_util.h"
#include "vssram.h"
#include "cmd_monitor.h"
#include "vdisplay.h"
#define VM_MAXCPU 16 /* maximum virtual cpus */
#define GUEST_NIO_PORT 0x488 /* guest upcalls via i/o port */
/* Values returned for reads on invalid I/O requests. */
#define IOREQ_PIO_INVAL (~0U)
#define IOREQ_MMIO_INVAL (~0UL)
typedef void (*vmexit_handler_t)(struct vmctx *,
struct acrn_io_request *, int *vcpu);
char *vmname;
char *vsbl_file_name;
char *ovmf_file_name;
char *ovmf_code_file_name;
char *ovmf_vars_file_name;
char *kernel_file_name;
char *elf_file_name;
uint8_t trusty_enabled;
bool stdio_in_use;
bool lapic_pt;
bool is_rtvm;
bool pt_tpm2;
bool ssram;
bool vtpm2;
bool is_winvm;
bool skip_pci_mem64bar_workaround = false;
bool gfx_ui = false;
static int guest_ncpus;
static int virtio_msix = 1;
static bool debugexit_enabled;
static int pm_notify_channel;
static bool cmd_monitor;
static char *progname;
static const int BSP;
static cpuset_t cpumask;
static void vm_loop(struct vmctx *ctx);
static char io_request_page[4096] __aligned(4096);
static struct acrn_io_request *ioreq_buf =
(struct acrn_io_request *)&io_request_page;
struct dmstats {
uint64_t vmexit_bogus;
uint64_t vmexit_reqidle;
uint64_t vmexit_hlt;
uint64_t vmexit_pause;
uint64_t vmexit_mtrap;
uint64_t cpu_switch_rotate;
uint64_t cpu_switch_direct;
uint64_t vmexit_mmio_emul;
} stats;
struct mt_vmm_info {
pthread_t mt_thr;
struct vmctx *mt_ctx;
int mt_vcpu;
} mt_vmm_info[VM_MAXCPU];
static struct vmctx *_ctx;
static void
usage(int code)
{
fprintf(stderr,
"Usage: %s [-hYv] [-B bootargs] [-E elf_image_path]\n"
" %*s [-k kernel_image_path]\n"
" %*s [-l lpc] [-m mem] [-r ramdisk_image_path]\n"
" %*s [-s pci] [--ovmf ovmf_file_path]\n"
" %*s [--enable_trusty] [--intr_monitor param_setting]\n"
" %*s [--acpidev_pt HID] [--mmiodev_pt MMIO_Regions]\n"
" %*s [--vtpm2 sock_path] [--virtio_poll interval]\n"
" %*s [--cpu_affinity lapic_id] [--lapic_pt] [--rtvm] [--windows]\n"
" %*s [--debugexit] [--logger_setting param_setting]\n"
" %*s [--ssram] <vm>\n"
" -B: bootargs for kernel\n"
" -E: elf image path\n"
" -h: help\n"
" -k: kernel image path\n"
" -l: LPC device configuration\n"
" -m: memory size in MB\n"
" -r: ramdisk image path\n"
" -s: <slot,driver,configinfo> PCI slot config\n"
" -v: version\n"
" --ovmf: ovmf file path\n"
" --ssram: Congfiure Software SRAM parameters\n"
" --cpu_affinity: list of Service VM vCPUs assigned to this User VM, the vCPUs are"
" identified by their local APIC IDs.\n"
" --enable_trusty: enable trusty for guest\n"
" --debugexit: enable debug exit function\n"
" --intr_monitor: enable interrupt storm monitor\n"
" its params: threshold/s,probe-period(s),delay_time(ms),delay_duration(ms)\n"
" --cmd_monitor: enable command monitor\n"
" its params: unix domain socket path\n"
" --virtio_poll: enable virtio poll mode with poll interval with ns\n"
" --acpidev_pt: acpi device ID args: HID in ACPI Table\n"
" --mmiodev_pt: MMIO resources args: physical MMIO regions\n"
" --vtpm2: Virtual TPM2 args: sock_path=$PATH_OF_SWTPM_SOCKET\n"
" --lapic_pt: enable local apic passthrough\n"
" --rtvm: indicate that the guest is rtvm\n"
" --logger_setting: params like console,level=4;kmsg,level=3\n"
" --windows: support Oracle virtio-blk, virtio-net and virtio-input devices\n"
" for windows guest with secure boot\n"
" --virtio_msi: force virtio to use single-vector MSI\n",
progname, (int)strnlen(progname, PATH_MAX), "", (int)strnlen(progname, PATH_MAX), "",
(int)strnlen(progname, PATH_MAX), "", (int)strnlen(progname, PATH_MAX), "",
(int)strnlen(progname, PATH_MAX), "", (int)strnlen(progname, PATH_MAX), "",
(int)strnlen(progname, PATH_MAX), "", (int)strnlen(progname, PATH_MAX), "",
(int)strnlen(progname, PATH_MAX), "");
exit(code);
}
static void
print_version(void)
{
fprintf(stdout, "DM version is: %s-%s (daily tag:%s), build by %s@%s\n",
DM_FULL_VERSION,
DM_BUILD_VERSION, DM_DAILY_TAG, DM_BUILD_USER, DM_BUILD_TIME);
exit(0);
}
/**
* @brief Convert guest physical address to host virtual address
*
* @param ctx Pointer to to struct vmctx representing VM context.
* @param gaddr Guest physical address base.
* @param len Guest physical address length.
*
* @return NULL on convert failed and host virtual address on successful.
*/
void *
paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len)
{
return vm_map_gpa(ctx, gaddr, len);
}
int
virtio_uses_msix(void)
{
return virtio_msix;
}
size_t
high_bios_size(void)
{
size_t size = ovmf_image_size();
return roundup2(size, 2 * MB);
}
static void *
start_thread(void *param)
{
char tname[MAXCOMLEN + 1];
struct mt_vmm_info *mtp;
int vcpu;
mtp = param;
vcpu = mtp->mt_vcpu;
snprintf(tname, sizeof(tname), "vcpu %d", vcpu);
pthread_setname_np(mtp->mt_thr, tname);
vm_loop(mtp->mt_ctx);
/* reset or halt */
return NULL;
}
static int
add_cpu(struct vmctx *ctx, int vcpu_num)
{
int i;
int error;
for (i = 0; i < vcpu_num; i++) {
CPU_SET_ATOMIC(i, &cpumask);
mt_vmm_info[i].mt_ctx = ctx;
mt_vmm_info[i].mt_vcpu = i;
}
vm_set_vcpu_regs(ctx, &ctx->bsp_regs);
error = pthread_create(&mt_vmm_info[0].mt_thr, NULL,
start_thread, &mt_vmm_info[0]);
return error;
}
static int
delete_cpu(struct vmctx *ctx, int vcpu)
{
if (!CPU_ISSET(vcpu, &cpumask)) {
pr_err("Attempting to delete unknown cpu %d\n", vcpu);
exit(1);
}
vm_destroy_ioreq_client(ctx);
pthread_join(mt_vmm_info[0].mt_thr, NULL);
CPU_CLR_ATOMIC(vcpu, &cpumask);
return CPU_EMPTY(&cpumask);
}
#ifdef DM_DEBUG
void
notify_vmloop_thread(void)
{
pthread_kill(mt_vmm_info[0].mt_thr, SIGCONT);
return;
}
#endif
static void
vmexit_inout(struct vmctx *ctx, struct acrn_io_request *io_req, int *pvcpu)
{
int error;
int bytes, port, in;
port = io_req->reqs.pio_request.address;
bytes = io_req->reqs.pio_request.size;
in = (io_req->reqs.pio_request.direction == ACRN_IOREQ_DIR_READ);
error = emulate_inout(ctx, pvcpu, &io_req->reqs.pio_request);
if (error) {
pr_err("Unhandled %s%c 0x%04x\n",
in ? "in" : "out",
bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'),
port);
if (in) {
io_req->reqs.pio_request.value = IOREQ_PIO_INVAL;
}
}
}
static void
vmexit_mmio_emul(struct vmctx *ctx, struct acrn_io_request *io_req, int *pvcpu)
{
int err;
stats.vmexit_mmio_emul++;
err = emulate_mem(ctx, &io_req->reqs.mmio_request);
if (err) {
if (err == -ESRCH)
pr_err("Unhandled memory access to 0x%lx\n",
io_req->reqs.mmio_request.address);
pr_err("Failed to emulate instruction [");
pr_err("mmio address 0x%lx, size %ld",
io_req->reqs.mmio_request.address,
io_req->reqs.mmio_request.size);
if (io_req->reqs.mmio_request.direction == ACRN_IOREQ_DIR_READ) {
io_req->reqs.mmio_request.value = IOREQ_MMIO_INVAL;
}
}
}
static void
vmexit_pci_emul(struct vmctx *ctx, struct acrn_io_request *io_req, int *pvcpu)
{
int err, in = (io_req->reqs.pci_request.direction == ACRN_IOREQ_DIR_READ);
err = emulate_pci_cfgrw(ctx, *pvcpu, in,
io_req->reqs.pci_request.bus,
io_req->reqs.pci_request.dev,
io_req->reqs.pci_request.func,
io_req->reqs.pci_request.reg,
io_req->reqs.pci_request.size,
&io_req->reqs.pci_request.value);
if (err) {
pr_err("Unhandled pci cfg rw at %x:%x.%x reg 0x%x\n",
io_req->reqs.pci_request.bus,
io_req->reqs.pci_request.dev,
io_req->reqs.pci_request.func,
io_req->reqs.pci_request.reg);
if (in) {
io_req->reqs.pio_request.value = IOREQ_PIO_INVAL;
}
}
}
#define DEBUG_EPT_MISCONFIG
#ifdef DEBUG_EPT_MISCONFIG
#define EXIT_REASON_EPT_MISCONFIG 49
#define VMCS_GUEST_PHYSICAL_ADDRESS 0x00002400
#define VMCS_IDENT(x) ((x) | 0x80000000)
#endif /* #ifdef DEBUG_EPT_MISCONFIG */
enum vm_exitcode {
VM_EXITCODE_INOUT = 0,
VM_EXITCODE_MMIO_EMUL,
VM_EXITCODE_PCI_CFG,
VM_EXITCODE_MAX
};
static vmexit_handler_t handler[VM_EXITCODE_MAX] = {
[VM_EXITCODE_INOUT] = vmexit_inout,
[VM_EXITCODE_MMIO_EMUL] = vmexit_mmio_emul,
[VM_EXITCODE_PCI_CFG] = vmexit_pci_emul,
};
static void
handle_vmexit(struct vmctx *ctx, struct acrn_io_request *io_req, int vcpu)
{
enum vm_exitcode exitcode;
exitcode = io_req->type;
if (exitcode >= VM_EXITCODE_MAX || handler[exitcode] == NULL) {
pr_err("handle vmexit: unexpected exitcode 0x%x\n",
exitcode);
exit(1);
}
(*handler[exitcode])(ctx, io_req, &vcpu);
/* We cannot notify the HSM/hypervisor on the request completion at this
* point if the User VM is in suspend or system reset mode, as the VM is
* still not paused and a notification can kick off the vcpu to run
* again. Postpone the notification till vm_system_reset() or
* vm_suspend_resume() for resetting the ioreq states in the HSM and
* hypervisor.
*/
if ((VM_SUSPEND_SYSTEM_RESET == vm_get_suspend_mode()) ||
(VM_SUSPEND_SUSPEND == vm_get_suspend_mode()))
return;
vm_notify_request_done(ctx, vcpu);
}
static int
guest_pm_notify_init(struct vmctx *ctx)
{
int ret = 0;
/*
* We don't care ioc_init return value so far.
* Will add return value check once ioc is full function.
*/
if (PWR_EVENT_NOTIFY_IOC == pm_notify_channel)
ioc_init(ctx);
else if (PWR_EVENT_NOTIFY_PWR_BT == pm_notify_channel)
power_button_init(ctx);
else if (PWR_EVENT_NOTIFY_UART == pm_notify_channel ||
PWR_EVENT_NOTIFY_UART_TRIG_PLAT_S5 == pm_notify_channel)
ret = pm_by_vuart_init(ctx,
(PWR_EVENT_NOTIFY_UART_TRIG_PLAT_S5 == pm_notify_channel));
else
pr_info("No pm notify channel given\n");
return ret;
}
static void
guest_pm_notify_deinit(struct vmctx *ctx)
{
if (PWR_EVENT_NOTIFY_IOC == pm_notify_channel)
ioc_deinit(ctx);
else if (PWR_EVENT_NOTIFY_PWR_BT == pm_notify_channel)
power_button_deinit(ctx);
else if (PWR_EVENT_NOTIFY_UART == pm_notify_channel ||
PWR_EVENT_NOTIFY_UART_TRIG_PLAT_S5 == pm_notify_channel)
pm_by_vuart_deinit(ctx);
else
pr_err("No correct pm notify channel given\n");
}
static int
vm_init_vdevs(struct vmctx *ctx)
{
int ret;
init_mem();
init_inout();
pci_irq_init(ctx);
atkbdc_init(ctx);
ioapic_init(ctx);
ret = guest_pm_notify_init(ctx);
if (ret < 0)
goto pm_notify_fail;
ret = vrtc_init(ctx);
if (ret < 0)
goto vrtc_fail;
ret = vpit_init(ctx);
if (ret < 0)
goto vpit_fail;
ret = vhpet_init(ctx);
if (ret < 0)
goto vhpet_fail;
sci_init(ctx);
if (debugexit_enabled)
init_debugexit();
if ((ssram) && (init_vssram(ctx) < 0))
goto ssram_fail;
ret = monitor_init(ctx);
if (ret < 0)
goto monitor_fail;
if ((cmd_monitor) && init_cmd_monitor(ctx) < 0)
goto monitor_fail;
ret = init_mmio_devs(ctx);
if (ret < 0)
goto mmio_dev_fail;
ret = init_pci(ctx);
if (ret < 0)
goto pci_fail;
/* FIXME: if we plan to support pass through a TPM device and emulate another b TPM device */
init_vtpm2(ctx);
return 0;
pci_fail:
deinit_mmio_devs(ctx);
mmio_dev_fail:
monitor_close();
ssram_fail:
if (ssram)
deinit_vssram(ctx);
monitor_fail:
if (debugexit_enabled)
deinit_debugexit();
vhpet_deinit(ctx);
vhpet_fail:
vpit_deinit(ctx);
vpit_fail:
vrtc_deinit(ctx);
vrtc_fail:
guest_pm_notify_deinit(ctx);
pm_notify_fail:
atkbdc_deinit(ctx);
pci_irq_deinit(ctx);
ioapic_deinit();
return -1;
}
static void
vm_deinit_vdevs(struct vmctx *ctx)
{
/*
* Write ovmf NV storage back to the original file from guest
* memory before deinit operations.
*/
acrn_writeback_ovmf_nvstorage(ctx);
deinit_pci(ctx);
deinit_mmio_devs(ctx);
monitor_close();
if (debugexit_enabled)
deinit_debugexit();
if (ssram)
deinit_vssram(ctx);
vhpet_deinit(ctx);
vpit_deinit(ctx);
vrtc_deinit(ctx);
guest_pm_notify_deinit(ctx);
atkbdc_deinit(ctx);
pci_irq_deinit(ctx);
ioapic_deinit();
deinit_vtpm2(ctx);
}
static void
vm_reset_vdevs(struct vmctx *ctx)
{
/*
* Write ovmf NV storage back to the original file from guest
* memory before deinit operations.
*/
acrn_writeback_ovmf_nvstorage(ctx);
/*
* The current virtual devices doesn't define virtual
* device reset function. So we call vdev deinit/init
* pairing to emulate the device reset operation.
*
* pci/ioapic deinit/init is needed because of dependency
* of pci irq allocation/free.
*
* acpi build is necessary because irq for each vdev
* could be assigned with different number after reset.
*/
atkbdc_deinit(ctx);
if (debugexit_enabled)
deinit_debugexit();
if (ssram)
deinit_vssram(ctx);
vhpet_deinit(ctx);
vpit_deinit(ctx);
vrtc_deinit(ctx);
deinit_pci(ctx);
pci_irq_deinit(ctx);
ioapic_deinit();
pci_irq_init(ctx);
atkbdc_init(ctx);
vrtc_init(ctx);
vpit_init(ctx);
vhpet_init(ctx);
if (debugexit_enabled)
init_debugexit();
if (ssram)
init_vssram(ctx);
ioapic_init(ctx);
init_pci(ctx);
acpi_build(ctx, guest_ncpus);
}
static void
vm_system_reset(struct vmctx *ctx)
{
/*
* If we get system reset request, we don't want to exit the
* vcpu_loop/vm_loop/mevent_loop. So we do:
* 1. pause VM
* 2. flush and clear ioreqs
* 3. reset virtual devices
* 4. load software for User VM
* 5. hypercall reset vm
* 6. reset suspend mode to VM_SUSPEND_NONE
*/
vm_pause(ctx);
/*
* After vm_pause, there should be no new coming ioreq.
*
* Unless under emergency mode, the vcpu writing to the ACPI PM
* CR should be the only vcpu of that VM that is still
* running. In this case there should be only one completed
* request which is the APIC PM CR write. VM reset will reset it
*
* When handling emergency mode triggered by one vcpu without
* offlining any other vcpus, there can be multiple IO requests
* with various states. We should be careful on potential races
* when resetting especially in SMP Service VM. vm_clear_ioreq can be used
* to clear all ioreq status in HSM after VM pause, then let VM
* reset in hypervisor reset all ioreqs.
*/
vm_clear_ioreq(ctx);
vm_reset_vdevs(ctx);
vm_reset(ctx);
pr_info("%s: setting VM state to %s\n", __func__, vm_state_to_str(VM_SUSPEND_NONE));
vm_set_suspend_mode(VM_SUSPEND_NONE);
/* set the BSP init state */
acrn_sw_load(ctx);
vm_set_vcpu_regs(ctx, &ctx->bsp_regs);
vm_run(ctx);
}
static void
vm_suspend_resume(struct vmctx *ctx)
{
/*
* If we get warm reboot request, we don't want to exit the
* vcpu_loop/vm_loop/mevent_loop. So we do:
* 1. pause VM
* 2. flush and clear ioreqs
* 3. stop vm watchdog
* 4. wait for resume signal
* 5. reset vm watchdog
* 6. hypercall restart vm
*/
vm_pause(ctx);
vm_clear_ioreq(ctx);
vm_stop_watchdog(ctx);
wait_for_resume(ctx);
pm_backto_wakeup(ctx);
vm_reset_watchdog(ctx);
vm_reset(ctx);
/* set the BSP init state */
vm_set_vcpu_regs(ctx, &ctx->bsp_regs);
vm_run(ctx);
}
static void
vm_loop(struct vmctx *ctx)
{
int error;
ctx->ioreq_client = vm_create_ioreq_client(ctx);
if (ctx->ioreq_client < 0) {
pr_err("%s, failed to create IOREQ.\n", __func__);
return;
}
if (vm_run(ctx) != 0) {
pr_err("%s, failed to run VM.\n", __func__);
return;
}
while (1) {
int vcpu_id;
struct acrn_io_request *io_req;
error = vm_attach_ioreq_client(ctx);
if (error)
break;
for (vcpu_id = 0; vcpu_id < guest_ncpus; vcpu_id++) {
io_req = &ioreq_buf[vcpu_id];
if ((atomic_load(&io_req->processed) == ACRN_IOREQ_STATE_PROCESSING)
&& !io_req->kernel_handled)
handle_vmexit(ctx, io_req, vcpu_id);
}
if (VM_SUSPEND_FULL_RESET == vm_get_suspend_mode() ||
VM_SUSPEND_POWEROFF == vm_get_suspend_mode()) {
break;
}
/* RTVM can't be reset */
if ((VM_SUSPEND_SYSTEM_RESET == vm_get_suspend_mode()) && (!is_rtvm)) {
vm_system_reset(ctx);
}
if (VM_SUSPEND_SUSPEND == vm_get_suspend_mode()) {
vm_suspend_resume(ctx);
}
}
pr_err("VM loop exit\n");
}
static int
num_vcpus_allowed(struct vmctx *ctx)
{
/* TODO: add ioctl to get gerneric information including
* virtual cpus, now hardcode
*/
return VM_MAXCPU;
}
static void
sig_handler_term(int signo)
{
pr_info("Received SIGINT to terminate application...\n");
pr_info("%s: setting VM state to %s\n", __func__, vm_state_to_str(VM_SUSPEND_POWEROFF));
vm_set_suspend_mode(VM_SUSPEND_POWEROFF);
mevent_notify();
}
enum {
CMD_OPT_VSBL = 1000,
CMD_OPT_OVMF,
CMD_OPT_CPU_AFFINITY,
CMD_OPT_PART_INFO,
CMD_OPT_TRUSTY_ENABLE,
CMD_OPT_VIRTIO_POLL_ENABLE,
CMD_OPT_MAC_SEED,
CMD_OPT_DEBUGEXIT,
CMD_OPT_VMCFG,
CMD_OPT_DUMP,
CMD_OPT_INTR_MONITOR,
CMD_OPT_CMD_MONITOR,
CMD_OPT_ACPIDEV_PT,
CMD_OPT_MMIODEV_PT,
CMD_OPT_VTPM2,
CMD_OPT_LAPIC_PT,
CMD_OPT_RTVM,
CMD_OPT_SOFTWARE_SRAM,
CMD_OPT_LOGGER_SETTING,
CMD_OPT_PM_NOTIFY_CHANNEL,
CMD_OPT_PM_BY_VUART,
CMD_OPT_WINDOWS,
CMD_OPT_FORCE_VIRTIO_MSI,
};
static struct option long_options[] = {
{"acpi", no_argument, 0, 'A' },
{"elf_file", required_argument, 0, 'E' },
{"ioc_node", required_argument, 0, 'i' },
{"lpc", required_argument, 0, 'l' },
{"pci_slot", required_argument, 0, 's' },
{"memsize", required_argument, 0, 'm' },
{"mptgen", no_argument, 0, 'Y' },
{"kernel", required_argument, 0, 'k' },
{"ramdisk", required_argument, 0, 'r' },
{"bootargs", required_argument, 0, 'B' },
{"version", no_argument, 0, 'v' },
{"gvtargs", required_argument, 0, 'G' },
{"help", no_argument, 0, 'h' },
/* Following cmd option only has long option */
#ifdef CONFIG_VM_CFG
#endif
{"vsbl", required_argument, 0, CMD_OPT_VSBL},
{"ovmf", required_argument, 0, CMD_OPT_OVMF},
{"cpu_affinity", required_argument, 0, CMD_OPT_CPU_AFFINITY},
{"part_info", required_argument, 0, CMD_OPT_PART_INFO},
{"enable_trusty", no_argument, 0,
CMD_OPT_TRUSTY_ENABLE},
{"virtio_poll", required_argument, 0, CMD_OPT_VIRTIO_POLL_ENABLE},
{"debugexit", no_argument, 0, CMD_OPT_DEBUGEXIT},
{"intr_monitor", required_argument, 0, CMD_OPT_INTR_MONITOR},
{"cmd_monitor", required_argument, 0, CMD_OPT_CMD_MONITOR},
{"acpidev_pt", required_argument, 0, CMD_OPT_ACPIDEV_PT},
{"mmiodev_pt", required_argument, 0, CMD_OPT_MMIODEV_PT},
{"vtpm2", required_argument, 0, CMD_OPT_VTPM2},
{"lapic_pt", no_argument, 0, CMD_OPT_LAPIC_PT},
{"rtvm", no_argument, 0, CMD_OPT_RTVM},
{"ssram", required_argument, 0, CMD_OPT_SOFTWARE_SRAM},
{"logger_setting", required_argument, 0, CMD_OPT_LOGGER_SETTING},
{"pm_notify_channel", required_argument, 0, CMD_OPT_PM_NOTIFY_CHANNEL},
{"pm_by_vuart", required_argument, 0, CMD_OPT_PM_BY_VUART},
{"windows", no_argument, 0, CMD_OPT_WINDOWS},
{"virtio_msi", no_argument, 0, CMD_OPT_FORCE_VIRTIO_MSI},
{0, 0, 0, 0 },
};
static char optstr[] = "AhYvE:k:r:B:s:m:l:U:G:i:";
int
main(int argc, char *argv[])
{
int c, error, ret=1;
int max_vcpus, mptgen;
struct vmctx *ctx;
size_t memsize;
int option_idx = 0;
progname = basename(argv[0]);
memsize = 256 * MB;
mptgen = 1;
if (signal(SIGHUP, sig_handler_term) == SIG_ERR)
fprintf(stderr, "cannot register handler for SIGHUP\n");
if (signal(SIGINT, sig_handler_term) == SIG_ERR)
fprintf(stderr, "cannot register handler for SIGINT\n");
/*
* Ignore SIGPIPE signal and handle the error directly when write()
* function fails. this will help us to catch the write failure rather
* than crashing the User VM.
*/
if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
fprintf(stderr, "cannot register handler for SIGPIPE\n");
if (parse_madt()) {
pr_err("Failed to parse the MADT table\n");
exit(1);
}
while ((c = getopt_long(argc, argv, optstr, long_options,
&option_idx)) != -1) {
switch (c) {
case 'A':
pr_info("The '-A' parameter is obsolete and ignored. "
"Virtual ACPI tables are always enabled.\n");
break;
case 'E':
if (acrn_parse_elf(optarg) != 0)
exit(1);
else
break;
break;
case 'i': /* obsolete parameter */
ioc_parse(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 'm':
if (vm_parse_memsize(optarg, &memsize) != 0)
errx(EX_USAGE, "invalid memsize '%s'", optarg);
break;
case 'Y': /* obsolete parameter */
mptgen = 0;
break;
case 'k':
if (acrn_parse_kernel(optarg) != 0)
exit(1);
else
break;
case 'r':
if (acrn_parse_ramdisk(optarg) != 0)
exit(1);
else
break;
case 'B':
if (acrn_parse_bootargs(optarg) != 0)
exit(1);
else
break;
break;
case 'G': /* obsolete parameter */
if (acrn_parse_gvtargs(optarg) != 0)
errx(EX_USAGE, "invalid GVT param %s", optarg);
break;
case 'v':
print_version();
break;
case CMD_OPT_VSBL: /* obsolete parameter */
if (high_bios_size() == 0 && acrn_parse_vsbl(optarg) != 0)
errx(EX_USAGE, "invalid vsbl param %s", optarg);
break;
case CMD_OPT_OVMF:
if (!vsbl_file_name && acrn_parse_ovmf(optarg) != 0)
errx(EX_USAGE, "invalid ovmf param %s", optarg);
skip_pci_mem64bar_workaround = true;
break;
case CMD_OPT_CPU_AFFINITY:
if (acrn_parse_cpu_affinity(optarg) != 0)
errx(EX_USAGE, "invalid pcpu param %s", optarg);
break;
case CMD_OPT_PART_INFO: /* obsolete parameter */
if (acrn_parse_guest_part_info(optarg) != 0) {
errx(EX_USAGE,
"invalid guest partition info param %s",
optarg);
}
break;
case CMD_OPT_TRUSTY_ENABLE:
trusty_enabled = 1;
break;
case CMD_OPT_VIRTIO_POLL_ENABLE:
if (acrn_parse_virtio_poll_interval(optarg) != 0) {
errx(EX_USAGE,
"invalid virtio poll interval %s",
optarg);
}
break;
case CMD_OPT_DEBUGEXIT:
debugexit_enabled = true;
break;
case CMD_OPT_LAPIC_PT:
lapic_pt = true;
break;
case CMD_OPT_RTVM:
is_rtvm = true;
lapic_pt = true;
break;
case CMD_OPT_SOFTWARE_SRAM:
if (parse_vssram_buf_params(optarg) != 0)
errx(EX_USAGE, "invalid vSSRAM buffer size param %s", optarg);
ssram = true;
break;
case CMD_OPT_ACPIDEV_PT:
/* FIXME: check acpi TPM device rules in acpi device famework init functions */
if (vtpm2 || create_pt_acpidev(optarg) != 0)
errx(EX_USAGE, "invalid pt acpi dev param %s", optarg);
break;
case CMD_OPT_MMIODEV_PT:
if (create_pt_mmiodev(optarg) != 0)
errx(EX_USAGE, "invalid pt mmio dev param %s", optarg);
break;
case CMD_OPT_VTPM2:
if (pt_tpm2 || acrn_parse_vtpm2(optarg) != 0)
errx(EX_USAGE, "invalid vtpm2 param %s", optarg);
break;
case CMD_OPT_INTR_MONITOR:
if (acrn_parse_intr_monitor(optarg) != 0)
errx(EX_USAGE, "invalid intr-monitor params %s", optarg);
break;
case CMD_OPT_CMD_MONITOR:
if (acrn_parse_cmd_monitor(optarg) != 0)
errx(EX_USAGE, "invalid command monitor params %s", optarg);
cmd_monitor = true;
break;
case CMD_OPT_LOGGER_SETTING:
if (init_logger_setting(optarg) != 0)
errx(EX_USAGE, "invalid logger setting params %s", optarg);
break;
case CMD_OPT_PM_NOTIFY_CHANNEL: /* obsolete parameter */
if (strncmp("ioc", optarg, sizeof("ioc")) == 0)
pm_notify_channel = PWR_EVENT_NOTIFY_IOC;
else if (strncmp("power_button", optarg, sizeof("power_button")) == 0)
pm_notify_channel = PWR_EVENT_NOTIFY_PWR_BT;
else if (strncmp("uart", optarg, sizeof("uart") - 1) == 0) {
if (optarg[sizeof("uart") - 1] == '\0')
pm_notify_channel = PWR_EVENT_NOTIFY_UART;
else if (strncmp(",allow_trigger_s5", optarg + sizeof("uart") - 1,
sizeof(",allow_trigger_s5")) == 0)
pm_notify_channel = PWR_EVENT_NOTIFY_UART_TRIG_PLAT_S5;
else
errx(EX_USAGE, "invalid pm_notify_channel: %s", optarg);
} else
errx(EX_USAGE, "invalid pm_notify_channel: %s", optarg);
break;
case CMD_OPT_PM_BY_VUART: /* obsolete parameter */
if (parse_pm_by_vuart(optarg) != 0)
errx(EX_USAGE, "invalid pm-by-vuart params %s", optarg);
break;
case CMD_OPT_WINDOWS:
is_winvm = true;
break;
case CMD_OPT_FORCE_VIRTIO_MSI:
virtio_msix = 0;
break;
case 'h':
usage(0);
default:
usage(1);
}
}
argc -= optind;
argv += optind;
if (argc != 1) {
pr_err("You must provide the name of the Virtual Machine (VM) you want to start. Exiting.\n");
usage(1);
}
if (lapic_pt == true && is_rtvm == false) {
lapic_pt = false;
pr_warn("Only a Realtime VM can use local APIC pass through, '--lapic_pt' is invalid here.\n");
}
vmname = argv[0];
if (strnlen(vmname, MAX_VM_NAME_LEN) >= MAX_VM_NAME_LEN) {
pr_err("The name of the VM exceeds the maximum length: %u\n", MAX_VM_NAME_LEN - 1);
exit(1);
}
if (!init_hugetlb()) {
pr_err("init_hugetlb failed\n");
exit(1);
}
if (gfx_ui) {
gfx_ui_init();
}
for (;;) {
pr_notice("vm_create: %s\n", vmname);
ctx = vm_create(vmname, (unsigned long)ioreq_buf, &guest_ncpus);
if (!ctx) {
pr_err("vm_create failed");
goto create_fail;
}
if (guest_ncpus < 1) {
pr_err("Invalid guest vCPUs (%d)\n", guest_ncpus);
goto fail;
}
max_vcpus = num_vcpus_allowed(ctx);
if (guest_ncpus > max_vcpus) {
pr_err("%d vCPUs requested but %d available\n",
guest_ncpus, max_vcpus);
goto fail;
}
pr_notice("vm_setup_memory: size=0x%lx\n", memsize);
error = vm_setup_memory(ctx, memsize);
if (error) {
pr_err("Unable to setup memory (%d)\n", errno);
goto fail;
}
error = mevent_init();
if (error) {
pr_err("Unable to initialize mevent (%d)\n", errno);
goto mevent_fail;
}
pr_notice("vm_init_vdevs\n");
if (vm_init_vdevs(ctx) < 0) {
pr_err("Unable to init vdev (%d)\n", errno);
goto dev_fail;
}
/*
* build the guest tables, MP etc.
*/
if (mptgen) {
error = mptable_build(ctx, guest_ncpus);
if (error) {
goto vm_fail;
}
}
error = acpi_build(ctx, guest_ncpus);
if (error) {
pr_err("acpi_build failed, error=%d\n", error);
goto vm_fail;
}
pr_notice("acrn_sw_load\n");
error = acrn_sw_load(ctx);
if (error) {
pr_err("acrn_sw_load failed, error=%d\n", error);
goto vm_fail;
}
/*
* Change the proc title to include the VM name.
*/
/*setproctitle("%s", vmname);*/
/*
* Add CPU 0
*/
pr_notice("add_cpu\n");
error = add_cpu(ctx, guest_ncpus);
if (error) {
pr_err("add_cpu failed, error=%d\n", error);
goto vm_fail;
}
/* Make a copy for ctx */
_ctx = ctx;
/*
* Head off to the main event dispatch loop
*/
mevent_dispatch();
vm_pause(ctx);
delete_cpu(ctx, BSP);
if (vm_get_suspend_mode() != VM_SUSPEND_FULL_RESET){
ret = 0;
break;
}
vm_deinit_vdevs(ctx);
mevent_deinit();
vm_unsetup_memory(ctx);
vm_destroy(ctx);
_ctx = 0;
pr_info("%s: setting VM state to %s\n", __func__, vm_state_to_str(VM_SUSPEND_NONE));
vm_set_suspend_mode(VM_SUSPEND_NONE);
}
vm_fail:
vm_deinit_vdevs(ctx);
if (ssram)
clean_vssram_configs();
dev_fail:
mevent_deinit();
mevent_fail:
vm_unsetup_memory(ctx);
fail:
vm_pause(ctx);
vm_destroy(ctx);
create_fail:
if (cmd_monitor)
deinit_cmd_monitor();
if (gfx_ui) {
gfx_ui_deinit();
}
uninit_hugetlb();
deinit_loggers();
exit(ret);
}
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