Merge remote-tracking branch 'kraxel/usb.82' into staging

[qemu.git] / exec.c

diff --git a/exec.c b/exec.c
index a6923addd48c6d0252c3296f3b560a5fa41d52b4..19725dbc05e0a72767c95239337d1ed800bdf82a 100644 (file)
--- a/exec.c
+++ b/exec.c
@@ -31,7 +31,7 @@
 #include "hw/qdev.h"
 #include "qemu/osdep.h"
 #include "sysemu/kvm.h"
-#include "hw/xen.h"
+#include "hw/xen/xen.h"
 #include "qemu/timer.h"
 #include "qemu/config-file.h"
 #include "exec/memory.h"
@@ -78,7 +78,7 @@ DEFINE_TLS(CPUArchState *,cpu_single_env);
 /* 0 = Do not count executed instructions.
    1 = Precise instruction counting.
    2 = Adaptive rate instruction counting.  */
-int use_icount = 0;
+int use_icount;
 
 #if !defined(CONFIG_USER_ONLY)
 
@@ -219,16 +219,16 @@ void cpu_exec_init_all(void)
 #endif
 }
 
-#if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
+#if !defined(CONFIG_USER_ONLY)
 
 static int cpu_common_post_load(void *opaque, int version_id)
 {
-    CPUArchState *env = opaque;
+    CPUState *cpu = opaque;
 
     /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the
        version_id is increased. */
-    env->interrupt_request &= ~0x01;
-    tlb_flush(env, 1);
+    cpu->interrupt_request &= ~0x01;
+    tlb_flush(cpu->env_ptr, 1);
 
     return 0;
 }
@@ -240,31 +240,45 @@ static const VMStateDescription vmstate_cpu_common = {
     .minimum_version_id_old = 1,
     .post_load = cpu_common_post_load,
     .fields      = (VMStateField []) {
-        VMSTATE_UINT32(halted, CPUArchState),
-        VMSTATE_UINT32(interrupt_request, CPUArchState),
+        VMSTATE_UINT32(halted, CPUState),
+        VMSTATE_UINT32(interrupt_request, CPUState),
         VMSTATE_END_OF_LIST()
     }
 };
+#else
+#define vmstate_cpu_common vmstate_dummy
 #endif
 
-CPUArchState *qemu_get_cpu(int cpu)
+CPUState *qemu_get_cpu(int index)
 {
     CPUArchState *env = first_cpu;
+    CPUState *cpu = NULL;
 
     while (env) {
-        if (env->cpu_index == cpu)
+        cpu = ENV_GET_CPU(env);
+        if (cpu->cpu_index == index) {
             break;
+        }
         env = env->next_cpu;
     }
 
-    return env;
+    return env ? cpu : NULL;
+}
+
+void qemu_for_each_cpu(void (*func)(CPUState *cpu, void *data), void *data)
+{
+    CPUArchState *env = first_cpu;
+
+    while (env) {
+        func(ENV_GET_CPU(env), data);
+        env = env->next_cpu;
+    }
 }
 
 void cpu_exec_init(CPUArchState *env)
 {
-#ifndef CONFIG_USER_ONLY
     CPUState *cpu = ENV_GET_CPU(env);
-#endif
+    CPUClass *cc = CPU_GET_CLASS(cpu);
     CPUArchState **penv;
     int cpu_index;
 
@@ -278,8 +292,8 @@ void cpu_exec_init(CPUArchState *env)
         penv = &(*penv)->next_cpu;
         cpu_index++;
     }
-    env->cpu_index = cpu_index;
-    env->numa_node = 0;
+    cpu->cpu_index = cpu_index;
+    cpu->numa_node = 0;
     QTAILQ_INIT(&env->breakpoints);
     QTAILQ_INIT(&env->watchpoints);
 #ifndef CONFIG_USER_ONLY
@@ -289,11 +303,15 @@ void cpu_exec_init(CPUArchState *env)
 #if defined(CONFIG_USER_ONLY)
     cpu_list_unlock();
 #endif
+    vmstate_register(NULL, cpu_index, &vmstate_cpu_common, cpu);
 #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
-    vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env);
     register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION,
                     cpu_save, cpu_load, env);
+    assert(cc->vmsd == NULL);
 #endif
+    if (cc->vmsd != NULL) {
+        vmstate_register(NULL, cpu_index, cc->vmsd, cpu);
+    }
 }
 
 #if defined(TARGET_HAS_ICE)
@@ -484,15 +502,12 @@ void cpu_single_step(CPUArchState *env, int enabled)
 #endif
 }
 
-void cpu_reset_interrupt(CPUArchState *env, int mask)
-{
-    env->interrupt_request &= ~mask;
-}
-
 void cpu_exit(CPUArchState *env)
 {
-    env->exit_request = 1;
-    cpu_unlink_tb(env);
+    CPUState *cpu = ENV_GET_CPU(env);
+
+    cpu->exit_request = 1;
+    cpu->tcg_exit_req = 1;
 }
 
 void cpu_abort(CPUArchState *env, const char *fmt, ...)
@@ -531,7 +546,6 @@ CPUArchState *cpu_copy(CPUArchState *env)
 {
     CPUArchState *new_env = cpu_init(env->cpu_model_str);
     CPUArchState *next_cpu = new_env->next_cpu;
-    int cpu_index = new_env->cpu_index;
 #if defined(TARGET_HAS_ICE)
     CPUBreakpoint *bp;
     CPUWatchpoint *wp;
@@ -539,9 +553,8 @@ CPUArchState *cpu_copy(CPUArchState *env)
 
     memcpy(new_env, env, sizeof(CPUArchState));
 
-    /* Preserve chaining and index. */
+    /* Preserve chaining. */
     new_env->next_cpu = next_cpu;
-    new_env->cpu_index = cpu_index;
 
     /* Clone all break/watchpoints.
        Note: Once we support ptrace with hw-debug register access, make sure
@@ -843,6 +856,8 @@ static void *file_ram_alloc(RAMBlock *block,
                             const char *path)
 {
     char *filename;
+    char *sanitized_name;
+    char *c;
     void *area;
     int fd;
 #ifdef MAP_POPULATE
@@ -864,18 +879,25 @@ static void *file_ram_alloc(RAMBlock *block,
         return NULL;
     }
 
-    if (asprintf(&filename, "%s/qemu_back_mem.XXXXXX", path) == -1) {
-        return NULL;
+    /* Make name safe to use with mkstemp by replacing '/' with '_'. */
+    sanitized_name = g_strdup(block->mr->name);
+    for (c = sanitized_name; *c != '\0'; c++) {
+        if (*c == '/')
+            *c = '_';
     }
 
+    filename = g_strdup_printf("%s/qemu_back_mem.%s.XXXXXX", path,
+                               sanitized_name);
+    g_free(sanitized_name);
+
     fd = mkstemp(filename);
     if (fd < 0) {
         perror("unable to create backing store for hugepages");
-        free(filename);
+        g_free(filename);
         return NULL;
     }
     unlink(filename);
-    free(filename);
+    g_free(filename);
 
     memory = (memory+hpagesize-1) & ~(hpagesize-1);
 
@@ -913,6 +935,8 @@ static ram_addr_t find_ram_offset(ram_addr_t size)
     RAMBlock *block, *next_block;
     ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX;
 
+    assert(size != 0); /* it would hand out same offset multiple times */
+
     if (QTAILQ_EMPTY(&ram_list.blocks))
         return 0;
 
@@ -1466,7 +1490,7 @@ static void check_watchpoint(int offset, int len_mask, int flags)
         /* We re-entered the check after replacing the TB. Now raise
          * the debug interrupt so that is will trigger after the
          * current instruction. */
-        cpu_interrupt(env, CPU_INTERRUPT_DEBUG);
+        cpu_interrupt(ENV_GET_CPU(env), CPU_INTERRUPT_DEBUG);
         return;
     }
     vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset;