doc: add limitation for UEFI services
add limitation for UEFI services
@@ -162,6 +162,11 @@ The Boot process proceeds as follows:
bootloader through dm-verity
#. Virtual bootloader starts the User-side verified boot process
+.. note::
+ To avoid hardware resources conflict with ACRN hypervisor, UEFI
+ services shall not use IOMMU. In addtion, currently we only support
+ UEFI timer with HPET MSI.
+
Direct boot mode
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