util: Enhance flush_icache_range with separate data pointer

[qemu.git] / softmmu / physmem.c

diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 3027747c0302c0904db2568eabb86f8ed40e4221..6301f4f0a5c9f47028617627cbd38e1658ffc424 100644 (file)
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -22,10 +22,10 @@
 #include "qapi/error.h"
 
 #include "qemu/cutils.h"
+#include "qemu/cacheflush.h"
 #include "cpu.h"
 #include "exec/exec-all.h"
 #include "exec/target_page.h"
-#include "tcg/tcg.h"
 #include "hw/qdev-core.h"
 #include "hw/qdev-properties.h"
 #include "hw/boards.h"
@@ -53,7 +53,7 @@
 
 #include "qemu/rcu_queue.h"
 #include "qemu/main-loop.h"
-#include "translate-all.h"
+#include "exec/translate-all.h"
 #include "sysemu/replay.h"
 
 #include "exec/memory-internal.h"
@@ -2946,7 +2946,7 @@ static inline MemTxResult address_space_write_rom_internal(AddressSpace *as,
                 invalidate_and_set_dirty(mr, addr1, l);
                 break;
             case FLUSH_CACHE:
-                flush_icache_range((uintptr_t)ram_ptr, (uintptr_t)ram_ptr + l);
+                flush_idcache_range((uintptr_t)ram_ptr, (uintptr_t)ram_ptr, l);
                 break;
             }
         }
@@ -3255,6 +3255,7 @@ int64_t address_space_cache_init(MemoryRegionCache *cache,
     AddressSpaceDispatch *d;
     hwaddr l;
     MemoryRegion *mr;
+    Int128 diff;
 
     assert(len > 0);
 
@@ -3263,6 +3264,15 @@ int64_t address_space_cache_init(MemoryRegionCache *cache,
     d = flatview_to_dispatch(cache->fv);
     cache->mrs = *address_space_translate_internal(d, addr, &cache->xlat, &l, true);
 
+    /*
+     * cache->xlat is now relative to cache->mrs.mr, not to the section itself.
+     * Take that into account to compute how many bytes are there between
+     * cache->xlat and the end of the section.
+     */
+    diff = int128_sub(cache->mrs.size,
+                     int128_make64(cache->xlat - cache->mrs.offset_within_region));
+    l = int128_get64(int128_min(diff, int128_make64(l)));
+
     mr = cache->mrs.mr;
     memory_region_ref(mr);
     if (memory_access_is_direct(mr, is_write)) {