commit 5e2972fdab75341357d7fd23859b887491c932a9
author aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> Sat Mar 28 17:51:36 2009 +0000
committer aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> Sat Mar 28 17:51:36 2009 +0000
tree 6b47657d72e91fefeccf653cb7a53a4530d83e5b
parent 26b258e13860a885b337cf7564162b93894863e4

ROM write access for debugging (Jan Kiszka)

Enhance cpu_memory_rw_debug so that it can write even to ROM regions.
This allows to modify ROM via gdb (I see no point in denying this to the
user), and it will enable us to drop kvm_patch_opcode_byte().

Credits go to Avi for suggesting this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6905 c046a42c-6fe2-441c-8c8c-71466251a162

exec.c

diff --git a/exec.c b/exec.c
index 86ab7de..5e94a8f 100644
--- a/exec.c
+++ b/exec.c
@@ -3448,7 +3448,7 @@
 
 #endif
 
-/* virtual memory access for debug */
+/* virtual memory access for debug (includes writing to ROM) */
 int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
                         uint8_t *buf, int len, int is_write)
 {
@@ -3465,8 +3465,13 @@
         l = (page + TARGET_PAGE_SIZE) - addr;
         if (l > len)
             l = len;
-        cpu_physical_memory_rw(phys_addr + (addr & ~TARGET_PAGE_MASK),
-                               buf, l, is_write);
+        phys_addr += (addr & ~TARGET_PAGE_MASK);
+#if !defined(CONFIG_USER_ONLY)
+        if (is_write)
+            cpu_physical_memory_write_rom(phys_addr, buf, l);
+        else
+#endif
+            cpu_physical_memory_rw(phys_addr, buf, l, is_write);
         len -= l;
         buf += l;
         addr += l;