diff options
Diffstat (limited to 'include/exec/memory.h')
| -rw-r--r-- | include/exec/memory.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index 5cd7574c60..cb35c38402 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -2997,6 +2997,10 @@ bool prepare_mmio_access(MemoryRegion *mr); static inline bool memory_access_is_direct(MemoryRegion *mr, bool is_write) { + /* ROM DEVICE regions only allow direct access if in ROMD mode. */ + if (!memory_region_is_ram(mr) && !memory_region_is_romd(mr)) { + return false; + } /* * RAM DEVICE regions can be accessed directly using memcpy, but it might * be MMIO and access using mempy can be wrong (e.g., using instructions not @@ -3006,11 +3010,9 @@ static inline bool memory_access_is_direct(MemoryRegion *mr, bool is_write) return false; } if (is_write) { - return memory_region_is_ram(mr) && !mr->readonly && - !mr->rom_device; - } else { - return memory_region_is_ram(mr) || memory_region_is_romd(mr); + return !mr->readonly && !mr->rom_device; } + return true; } /** |