pc: make vgabios exit port more useful

[qemu.git] / vl.c

diff --git a/vl.c b/vl.c
index 73316cf17e149ef0eb28cbc87b939e034991b3e3..c7141274f771362fb91da92839f57a34a6782a09 100644 (file)
--- a/vl.c
+++ b/vl.c
@@ -265,6 +265,7 @@ int kvm_allowed = 0;
 int xen_allowed = 0;
 uint32_t xen_domid;
 enum xen_mode xen_mode = XEN_EMULATE;
+static int tcg_tb_size;
 
 static int default_serial = 1;
 static int default_parallel = 1;
@@ -1932,6 +1933,7 @@ static QEMUMachine *machine_parse(const char *name)
 
 static int tcg_init(void)
 {
+    tcg_exec_init(tcg_tb_size * 1024 * 1024);
     return 0;
 }
 
@@ -2092,7 +2094,6 @@ int main(int argc, char **argv, char **envp)
     const char *loadvm = NULL;
     QEMUMachine *machine;
     const char *cpu_model;
-    int tb_size;
     const char *pid_file = NULL;
     const char *incoming = NULL;
 #ifdef CONFIG_VNC
@@ -2132,7 +2133,6 @@ int main(int argc, char **argv, char **envp)
     nb_numa_nodes = 0;
     nb_nics = 0;
 
-    tb_size = 0;
     autostart= 1;
 
     /* first pass of option parsing */
@@ -2454,11 +2454,6 @@ int main(int argc, char **argv, char **envp)
                     exit(1);
                 }
 
-                /* On 32-bit hosts, QEMU is limited by virtual address space */
-                if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
-                    fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
-                    exit(1);
-                }
                 if (value != (uint64_t)(ram_addr_t)value) {
                     fprintf(stderr, "qemu: ram size too large\n");
                     exit(1);
@@ -2852,9 +2847,10 @@ int main(int argc, char **argv, char **envp)
                 configure_rtc(opts);
                 break;
             case QEMU_OPTION_tb_size:
-                tb_size = strtol(optarg, NULL, 0);
-                if (tb_size < 0)
-                    tb_size = 0;
+                tcg_tb_size = strtol(optarg, NULL, 0);
+                if (tcg_tb_size < 0) {
+                    tcg_tb_size = 0;
+                }
                 break;
             case QEMU_OPTION_icount:
                 icount_option = optarg;
@@ -3116,11 +3112,19 @@ int main(int argc, char **argv, char **envp)
         exit(1);
 
     /* init the memory */
-    if (ram_size == 0)
+    if (ram_size == 0) {
         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
+    }
+
+    if (!xen_enabled()) {
+        /* On 32-bit hosts, QEMU is limited by virtual address space */
+        if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
+            fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
+            exit(1);
+        }
+    }
 
-    /* init the dynamic translator */
-    cpu_exec_init_all(tb_size * 1024 * 1024);
+    cpu_exec_init_all();
 
     bdrv_init_with_whitelist();