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-rw-r--r--docs/system/arm/vexpress.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/system/arm/vexpress.rst b/docs/system/arm/vexpress.rst
index 3e3839e923..38f29c73e7 100644
--- a/docs/system/arm/vexpress.rst
+++ b/docs/system/arm/vexpress.rst
@@ -58,6 +58,9 @@ Other differences between the hardware and the QEMU model:
   ``vexpress-a15``, and have IRQs from 40 upwards. If a dtb is
   provided on the command line then QEMU will edit it to include
   suitable entries describing these transports for the guest.
+- QEMU does not currently support either dynamic or static remapping
+  of the area of memory at address 0: it is always mapped to alias
+  the first flash bank
 
 Booting a Linux kernel
 ----------------------