qemu/feature-Add-logs-for-vm-start-and-destroy.patch

From 9a47271fb6c855ec92e087d59d65f3cc0c684725 Mon Sep 17 00:00:00 2001
From: "wangxinxin.wang@huawei.com" <wangxinxin.wang@huawei.com>
Date: Sun, 17 Mar 2024 15:04:09 +0800
Subject: [PATCH] feature: Add logs for vm start and destroy

Add QEMU_LOG for vm start and destroy

Signed-off-by: miaoyubo <miaoyubo@huawei.com>
Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com>
Signed-off-by: Yuan Zhang <zhangyuan162@huawei.com>
---
 hw/acpi/core.c    | 4 ++++
 hw/core/reset.c   | 2 ++
 system/main.c     | 2 ++
 system/runstate.c | 2 ++
 system/vl.c       | 6 ++++++
 5 files changed, 16 insertions(+)

diff --git a/hw/acpi/core.c b/hw/acpi/core.c
index ec5e127d17..b6241f70e9 100644
--- a/hw/acpi/core.c
+++ b/hw/acpi/core.c
@@ -24,6 +24,7 @@
 #include "hw/acpi/acpi.h"
 #include "hw/nvram/fw_cfg.h"
 #include "qemu/config-file.h"
+#include "qemu/log.h"
 #include "qapi/error.h"
 #include "qapi/opts-visitor.h"
 #include "qapi/qapi-events-run-state.h"
@@ -588,13 +589,16 @@ static void acpi_pm_cnt_write(void *opaque, hwaddr addr, uint64_t val,
         uint16_t sus_typ = (val >> 10) & 7;
         switch (sus_typ) {
         case 0: /* soft power off */
+	    qemu_log("VM will be soft power off\n");
             qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
             break;
         case 1:
+	    qemu_log("VM will be suspend state\n");
             qemu_system_suspend_request();
             break;
         default:
             if (sus_typ == ar->pm1.cnt.s4_val) { /* S4 request */
+		qemu_log("VM will be S4 state\n");
                 qapi_event_send_suspend_disk();
                 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
             }
diff --git a/hw/core/reset.c b/hw/core/reset.c
index d3263b613e..fa63bfedb7 100644
--- a/hw/core/reset.c
+++ b/hw/core/reset.c
@@ -25,6 +25,7 @@
 
 #include "qemu/osdep.h"
 #include "qemu/queue.h"
+#include "qemu/log.h"
 #include "sysemu/reset.h"
 
 /* reset/shutdown handler */
@@ -75,6 +76,7 @@ void qemu_devices_reset(ShutdownCause reason)
 {
     QEMUResetEntry *re, *nre;
 
+    qemu_log("reset all devices\n");
     /* reset all devices */
     QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
         if (reason == SHUTDOWN_CAUSE_SNAPSHOT_LOAD &&
diff --git a/system/main.c b/system/main.c
index 9b91d21ea8..28bb283ebf 100644
--- a/system/main.c
+++ b/system/main.c
@@ -23,6 +23,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/log.h"
 #include "qemu-main.h"
 #include "sysemu/sysemu.h"
 
@@ -34,6 +35,7 @@ int qemu_default_main(void)
 {
     int status;
 
+    qemu_log("qemu enter main_loop\n");
     status = qemu_main_loop();
     qemu_cleanup(status);
 
diff --git a/system/runstate.c b/system/runstate.c
index 62e6db8d42..538c645326 100644
--- a/system/runstate.c
+++ b/system/runstate.c
@@ -769,9 +769,11 @@ static bool main_loop_should_exit(int *status)
     }
     if (qemu_powerdown_requested()) {
         qemu_system_powerdown();
+	qemu_log("domain is power down by outside operation\n");
     }
     if (qemu_vmstop_requested(&r)) {
         vm_stop(r);
+	qemu_log("domain is stopped by outside operation\n");
     }
     return false;
 }
diff --git a/system/vl.c b/system/vl.c
index 2bcd9efb9a..165c3cae8a 100644
--- a/system/vl.c
+++ b/system/vl.c
@@ -26,6 +26,7 @@
 #include "qemu/help-texts.h"
 #include "qemu/datadir.h"
 #include "qemu/units.h"
+#include "qemu/log.h"
 #include "exec/cpu-common.h"
 #include "exec/page-vary.h"
 #include "hw/qdev-properties.h"
@@ -2633,6 +2634,7 @@ static void qemu_create_cli_devices(void)
     }
 
     /* init generic devices */
+    qemu_log("device init start\n");
     rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
     qemu_opts_foreach(qemu_find_opts("device"),
                       device_init_func, NULL, &error_fatal);
@@ -2778,6 +2780,7 @@ void qemu_init(int argc, char **argv)
 
     qemu_init_subsystems();
 
+    qemu_log("qemu pid is %d, options parsing start\n", getpid());
     /* first pass of option parsing */
     optind = 1;
     while (optind < argc) {
@@ -2997,6 +3000,7 @@ void qemu_init(int argc, char **argv)
                 exit(0);
                 break;
             case QEMU_OPTION_m:
+                qemu_log("memory options parse start\n");
                 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
                 if (opts == NULL) {
                     exit(1);
@@ -3714,6 +3718,7 @@ void qemu_init(int argc, char **argv)
      */
 
     machine_class = MACHINE_GET_CLASS(current_machine);
+    qemu_log("configure accelerator %s start\n", machine_class->name);
     if (!qtest_enabled() && machine_class->deprecation_reason) {
         warn_report("Machine type '%s' is deprecated: %s",
                      machine_class->name, machine_class->deprecation_reason);
@@ -3732,6 +3737,7 @@ void qemu_init(int argc, char **argv)
      */
     migration_object_init();
 
+    qemu_log("machine init start\n");
     /* parse features once if machine provides default cpu_type */
     current_machine->cpu_type = machine_class->default_cpu_type;
     if (cpu_option) {
-- 
2.27.0