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| author | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2018-08-22 10:24:24 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-08-22 10:24:24 +0100 |
| commit | 61e7c0542e965e6e03569ed13b81ed185080c057 (patch) | |
| tree | ce633034b3e11c978a68238eb51735a09b21c991 /docs/user-guide.rst | |
| parent | 36d47074415a94846f3c395899d6276774cc3384 (diff) | |
| parent | 5f8359188008aff6a2a8e936003827ae771ed99f (diff) | |
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Merge pull request #1533 from jeenu-arm/mpam
AArch64: Enable MPAM for lower ELs
Diffstat (limited to 'docs/user-guide.rst')
| -rw-r--r-- | docs/user-guide.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/user-guide.rst b/docs/user-guide.rst index 46370ce08..3f8170fd0 100644 --- a/docs/user-guide.rst +++ b/docs/user-guide.rst @@ -351,6 +351,17 @@ Common build options that is only required for the assertion and does not fit in the assertion itself. +- ``ENABLE_MPAM_FOR_LOWER_ELS``: Boolean option to enable lower ELs to use MPAM + feature. MPAM is an optional Armv8.4 extension that enables various memory + system components and resources to define partitions; software running at + various ELs can assign themselves to desired partition to control their + performance aspects. + + When this option is set to ``1``, EL3 allows lower ELs to access their own + MPAM registers without trapping into EL3. This option doesn't make use of + partitioning in EL3, however. Platform initialisation code should configure + and use partitions in EL3 as required. This option defaults to ``0``. + - ``ENABLE_PMF``: Boolean option to enable support for optional Performance Measurement Framework(PMF). Default is 0. |