hw/acpi: extract acpi_add_rom_blob()

[mirror_qemu.git] / cpus.c

diff --git a/cpus.c b/cpus.c
index 78040718725974d0a42845ac99a004b4950e6b2a..dde3b7b9813c2882b0ade13c7d4c1ad2a31c4b6b 100644 (file)
--- a/cpus.c
+++ b/cpus.c
@@ -23,6 +23,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu-common.h"
 #include "qemu/config-file.h"
 #include "cpu.h"
 #include "monitor/monitor.h"
@@ -31,7 +32,9 @@
 #include "qapi/qapi-events-run-state.h"
 #include "qapi/qmp/qerror.h"
 #include "qemu/error-report.h"
+#include "qemu/qemu-print.h"
 #include "sysemu/sysemu.h"
+#include "sysemu/tcg.h"
 #include "sysemu/block-backend.h"
 #include "exec/gdbstub.h"
 #include "sysemu/dma.h"
@@ -49,6 +52,7 @@
 #include "qemu/option.h"
 #include "qemu/bitmap.h"
 #include "qemu/seqlock.h"
+#include "qemu/guest-random.h"
 #include "tcg.h"
 #include "hw/nmi.h"
 #include "sysemu/replay.h"
@@ -237,7 +241,8 @@ void qemu_tcg_configure(QemuOpts *opts, Error **errp)
  */
 static int64_t cpu_get_icount_executed(CPUState *cpu)
 {
-    return cpu->icount_budget - (cpu->icount_decr.u16.low + cpu->icount_extra);
+    return (cpu->icount_budget -
+            (cpu_neg(cpu)->icount_decr.u16.low + cpu->icount_extra));
 }
 
 /*
@@ -509,8 +514,8 @@ static void icount_warp_rt(void)
     seqlock_write_lock(&timers_state.vm_clock_seqlock,
                        &timers_state.vm_clock_lock);
     if (runstate_is_running()) {
-        int64_t clock = REPLAY_CLOCK(REPLAY_CLOCK_VIRTUAL_RT,
-                                     cpu_get_clock_locked());
+        int64_t clock = REPLAY_CLOCK_LOCKED(REPLAY_CLOCK_VIRTUAL_RT,
+                                            cpu_get_clock_locked());
         int64_t warp_delta;
 
         warp_delta = clock - timers_state.vm_clock_warp_start;
@@ -1009,7 +1014,7 @@ void hw_error(const char *fmt, ...)
     fprintf(stderr, "\n");
     CPU_FOREACH(cpu) {
         fprintf(stderr, "CPU #%d:\n", cpu->cpu_index);
-        cpu_dump_state(cpu, stderr, fprintf, CPU_DUMP_FPU);
+        cpu_dump_state(cpu, stderr, CPU_DUMP_FPU);
     }
     va_end(ap);
     abort();
@@ -1220,16 +1225,20 @@ static void qemu_wait_io_event_common(CPUState *cpu)
     process_queued_cpu_work(cpu);
 }
 
-static void qemu_tcg_rr_wait_io_event(CPUState *cpu)
+static void qemu_tcg_rr_wait_io_event(void)
 {
+    CPUState *cpu;
+
     while (all_cpu_threads_idle()) {
         stop_tcg_kick_timer();
-        qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex);
+        qemu_cond_wait(first_cpu->halt_cond, &qemu_global_mutex);
     }
 
     start_tcg_kick_timer();
 
-    qemu_wait_io_event_common(cpu);
+    CPU_FOREACH(cpu) {
+        qemu_wait_io_event_common(cpu);
+    }
 }
 
 static void qemu_wait_io_event(CPUState *cpu)
@@ -1271,6 +1280,7 @@ static void *qemu_kvm_cpu_thread_fn(void *arg)
     /* signal CPU creation */
     cpu->created = true;
     qemu_cond_signal(&qemu_cpu_cond);
+    qemu_guest_random_seed_thread_part2(cpu->random_seed);
 
     do {
         if (cpu_can_run(cpu)) {
@@ -1314,6 +1324,7 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
     /* signal CPU creation */
     cpu->created = true;
     qemu_cond_signal(&qemu_cpu_cond);
+    qemu_guest_random_seed_thread_part2(cpu->random_seed);
 
     do {
         qemu_mutex_unlock_iothread();
@@ -1329,6 +1340,7 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
         qemu_wait_io_event(cpu);
     } while (!cpu->unplug);
 
+    qemu_mutex_unlock_iothread();
     rcu_unregister_thread();
     return NULL;
 #endif
@@ -1380,12 +1392,12 @@ static void prepare_icount_for_run(CPUState *cpu)
          * each vCPU execution. However u16.high can be raised
          * asynchronously by cpu_exit/cpu_interrupt/tcg_handle_interrupt
          */
-        g_assert(cpu->icount_decr.u16.low == 0);
+        g_assert(cpu_neg(cpu)->icount_decr.u16.low == 0);
         g_assert(cpu->icount_extra == 0);
 
         cpu->icount_budget = tcg_get_icount_limit();
         insns_left = MIN(0xffff, cpu->icount_budget);
-        cpu->icount_decr.u16.low = insns_left;
+        cpu_neg(cpu)->icount_decr.u16.low = insns_left;
         cpu->icount_extra = cpu->icount_budget - insns_left;
 
         replay_mutex_lock();
@@ -1399,7 +1411,7 @@ static void process_icount_data(CPUState *cpu)
         cpu_update_icount(cpu);
 
         /* Reset the counters */
-        cpu->icount_decr.u16.low = 0;
+        cpu_neg(cpu)->icount_decr.u16.low = 0;
         cpu->icount_extra = 0;
         cpu->icount_budget = 0;
 
@@ -1425,7 +1437,8 @@ static int tcg_cpu_exec(CPUState *cpu)
     ret = cpu_exec(cpu);
     cpu_exec_end(cpu);
 #ifdef CONFIG_PROFILER
-    tcg_time += profile_getclock() - ti;
+    atomic_set(&tcg_ctx->prof.cpu_exec_time,
+               tcg_ctx->prof.cpu_exec_time + profile_getclock() - ti);
 #endif
     return ret;
 }
@@ -1471,6 +1484,7 @@ static void *qemu_tcg_rr_cpu_thread_fn(void *arg)
     cpu->created = true;
     cpu->can_do_io = 1;
     qemu_cond_signal(&qemu_cpu_cond);
+    qemu_guest_random_seed_thread_part2(cpu->random_seed);
 
     /* wait for initial kick-off after machine start */
     while (first_cpu->stopped) {
@@ -1553,7 +1567,15 @@ static void *qemu_tcg_rr_cpu_thread_fn(void *arg)
             atomic_mb_set(&cpu->exit_request, 0);
         }
 
-        qemu_tcg_rr_wait_io_event(cpu ? cpu : first_cpu);
+        if (use_icount && all_cpu_threads_idle()) {
+            /*
+             * When all cpus are sleeping (e.g in WFI), to avoid a deadlock
+             * in the main_loop, wake it up in order to start the warp timer.
+             */
+            qemu_notify_event();
+        }
+
+        qemu_tcg_rr_wait_io_event();
         deal_with_unplugged_cpus();
     }
 
@@ -1577,6 +1599,7 @@ static void *qemu_hax_cpu_thread_fn(void *arg)
 
     hax_init_vcpu(cpu);
     qemu_cond_signal(&qemu_cpu_cond);
+    qemu_guest_random_seed_thread_part2(cpu->random_seed);
 
     do {
         if (cpu_can_run(cpu)) {
@@ -1616,6 +1639,7 @@ static void *qemu_hvf_cpu_thread_fn(void *arg)
     /* signal CPU creation */
     cpu->created = true;
     qemu_cond_signal(&qemu_cpu_cond);
+    qemu_guest_random_seed_thread_part2(cpu->random_seed);
 
     do {
         if (cpu_can_run(cpu)) {
@@ -1656,6 +1680,7 @@ static void *qemu_whpx_cpu_thread_fn(void *arg)
     /* signal CPU creation */
     cpu->created = true;
     qemu_cond_signal(&qemu_cpu_cond);
+    qemu_guest_random_seed_thread_part2(cpu->random_seed);
 
     do {
         if (cpu_can_run(cpu)) {
@@ -1709,6 +1734,7 @@ static void *qemu_tcg_cpu_thread_fn(void *arg)
     cpu->can_do_io = 1;
     current_cpu = cpu;
     qemu_cond_signal(&qemu_cpu_cond);
+    qemu_guest_random_seed_thread_part2(cpu->random_seed);
 
     /* process any pending work */
     cpu->exit_request = 1;
@@ -1765,7 +1791,7 @@ static void qemu_cpu_kick_thread(CPUState *cpu)
     }
     cpu->thread_kicked = true;
     err = pthread_kill(cpu->thread->thread, SIG_IPI);
-    if (err) {
+    if (err && err != ESRCH) {
         fprintf(stderr, "qemu:%s: %s", __func__, strerror(err));
         exit(1);
     }
@@ -2056,6 +2082,7 @@ void qemu_init_vcpu(CPUState *cpu)
     cpu->nr_cores = smp_cores;
     cpu->nr_threads = smp_threads;
     cpu->stopped = true;
+    cpu->random_seed = qemu_guest_random_seed_thread_part1();
 
     if (!cpu->as) {
         /* If the target cpu hasn't set up any address spaces itself,
@@ -2087,7 +2114,8 @@ void qemu_init_vcpu(CPUState *cpu)
 void cpu_stop_current(void)
 {
     if (current_cpu) {
-        qemu_cpu_stop(current_cpu, true);
+        current_cpu->stop = true;
+        cpu_exit(current_cpu);
     }
 }
 
@@ -2165,11 +2193,11 @@ int vm_stop_force_state(RunState state)
     }
 }
 
-void list_cpus(FILE *f, fprintf_function cpu_fprintf, const char *optarg)
+void list_cpus(const char *optarg)
 {
     /* XXX: implement xxx_cpu_list for targets that still miss it */
 #if defined(cpu_list)
-    cpu_list(f, cpu_fprintf);
+    cpu_list();
 #endif
 }
 
@@ -2439,19 +2467,21 @@ void qmp_inject_nmi(Error **errp)
     nmi_monitor_handle(monitor_get_cpu_index(), errp);
 }
 
-void dump_drift_info(FILE *f, fprintf_function cpu_fprintf)
+void dump_drift_info(void)
 {
     if (!use_icount) {
         return;
     }
 
-    cpu_fprintf(f, "Host - Guest clock  %"PRIi64" ms\n",
+    qemu_printf("Host - Guest clock  %"PRIi64" ms\n",
                 (cpu_get_clock() - cpu_get_icount())/SCALE_MS);
     if (icount_align_option) {
-        cpu_fprintf(f, "Max guest delay     %"PRIi64" ms\n", -max_delay/SCALE_MS);
-        cpu_fprintf(f, "Max guest advance   %"PRIi64" ms\n", max_advance/SCALE_MS);
+        qemu_printf("Max guest delay     %"PRIi64" ms\n",
+                    -max_delay / SCALE_MS);
+        qemu_printf("Max guest advance   %"PRIi64" ms\n",
+                    max_advance / SCALE_MS);
     } else {
-        cpu_fprintf(f, "Max guest delay     NA\n");
-        cpu_fprintf(f, "Max guest advance   NA\n");
+        qemu_printf("Max guest delay     NA\n");
+        qemu_printf("Max guest advance   NA\n");
     }
 }