Merge remote-tracking branch 'remotes/jovanovic/mips-ufrp' into staging

[mirror_qemu.git] / hw / core / loader.c

diff --git a/hw/core/loader.c b/hw/core/loader.c
index 060729f140222d02071dccee775480d8e723068a..e1c3f3a8609fd8f55f749fa5e7fad4f71af3948e 100644 (file)
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -778,13 +778,21 @@ static void rom_reset(void *unused)
             void *host = memory_region_get_ram_ptr(rom->mr);
             memcpy(host, rom->data, rom->datasize);
         } else {
-            cpu_physical_memory_write_rom(rom->addr, rom->data, rom->datasize);
+            cpu_physical_memory_write_rom(&address_space_memory,
+                                          rom->addr, rom->data, rom->datasize);
         }
         if (rom->isrom) {
             /* rom needs to be written only once */
             g_free(rom->data);
             rom->data = NULL;
         }
+        /*
+         * The rom loader is really on the same level as firmware in the guest
+         * shadowing a ROM into RAM. Such a shadowing mechanism needs to ensure
+         * that the instruction cache for that new region is clear, so that the
+         * CPU definitely fetches its instructions from the just written data.
+         */
+        cpu_flush_icache_range(rom->addr, rom->datasize);
     }
 }
 
@@ -812,10 +820,14 @@ int rom_load_all(void)
         memory_region_unref(section.mr);
     }
     qemu_register_reset(rom_reset, NULL);
-    roms_loaded = 1;
     return 0;
 }
 
+void rom_load_done(void)
+{
+    roms_loaded = 1;
+}
+
 void rom_set_fw(FWCfgState *f)
 {
     fw_cfg = f;