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Diffstat (limited to 'exec.c')
-rw-r--r--exec.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/exec.c b/exec.c
index 964ce318fb..983c0db3f7 100644
--- a/exec.c
+++ b/exec.c
@@ -2611,6 +2611,7 @@ void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
ram_addr_t orig_size = size;
subpage_t *subpage;
+ assert(size);
cpu_notify_set_memory(start_addr, size, phys_offset);
if (phys_offset == IO_MEM_UNASSIGNED) {
@@ -2619,7 +2620,9 @@ void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
region_offset &= TARGET_PAGE_MASK;
size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
end_addr = start_addr + (target_phys_addr_t)size;
- for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) {
+
+ addr = start_addr;
+ do {
p = phys_page_find(addr >> TARGET_PAGE_BITS);
if (p && p->phys_offset != IO_MEM_UNASSIGNED) {
ram_addr_t orig_memory = p->phys_offset;
@@ -2671,7 +2674,8 @@ void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
}
}
region_offset += TARGET_PAGE_SIZE;
- }
+ addr += TARGET_PAGE_SIZE;
+ } while (addr != end_addr);
/* since each CPU stores ram addresses in its TLB cache, we must
reset the modified entries */