doc: add limitation for UEFI services

- add limitation for UEFI services

Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
This commit is contained in:
Shiqing Gao 2019-08-13 08:48:44 +08:00 committed by wenlingz
parent 63e66e6592
commit e9e593990c

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@ -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
================