diff options
Diffstat (limited to 'Documentation/intel_txt.txt')
-rw-r--r-- | Documentation/intel_txt.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/intel_txt.txt b/Documentation/intel_txt.txt index 87c8990dbbd9..5dc59b04a71f 100644 --- a/Documentation/intel_txt.txt +++ b/Documentation/intel_txt.txt | |||
@@ -126,7 +126,7 @@ o Tboot then applies an (optional) user-defined launch policy to | |||
126 | o Tboot adjusts the e820 table provided by the bootloader to reserve | 126 | o Tboot adjusts the e820 table provided by the bootloader to reserve |
127 | its own location in memory as well as to reserve certain other | 127 | its own location in memory as well as to reserve certain other |
128 | TXT-related regions. | 128 | TXT-related regions. |
129 | o As part of it's launch, tboot DMA protects all of RAM (using the | 129 | o As part of its launch, tboot DMA protects all of RAM (using the |
130 | VT-d PMRs). Thus, the kernel must be booted with 'intel_iommu=on' | 130 | VT-d PMRs). Thus, the kernel must be booted with 'intel_iommu=on' |
131 | in order to remove this blanket protection and use VT-d's | 131 | in order to remove this blanket protection and use VT-d's |
132 | page-level protection. | 132 | page-level protection. |