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doc: add limitation for UEFI services

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- add limitation for UEFI services

Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
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Shiqing Gao 2019-08-13 08:48:44 +08:00 committed by wenlingz
parent 63e66e6592
commit e9e593990c
1 changed files with 5 additions and 0 deletions
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doc/introduction/index.rst
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@ -162,6 +162,11 @@ The Boot process proceeds as follows:
bootloader through dm-verity bootloader through dm-verity
#. Virtual bootloader starts the User-side verified boot process #. 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 Direct boot mode
================ ================