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| author | Miquel Sabaté Solà <mikisabate@gmail.com> | 2024-12-03 14:52:13 +0100 |
|---|---|---|
| committer | Miquel Sabaté Solà <mikisabate@gmail.com> | 2024-12-03 14:56:17 +0100 |
| commit | 75fc0bb454b6da14ca42168006af65577fbdfc39 (patch) | |
| tree | f5a8795d11acb83d3204e2fe230fa8631b62fb99 /README.md | |
| parent | 2eead36f97faf5bdad1abd60a220c0af72a5526c (diff) | |
| download | fbos-75fc0bb454b6da14ca42168006af65577fbdfc39.tar.gz fbos-75fc0bb454b6da14ca42168006af65577fbdfc39.zip | |
Write down the requirement for the Zaamo extension
Since 2eead36f97fa ("Run a hart lottery on SMP") the kernel is making
use of the 'amoadd.w' instruction, which requires the Zaamo
extension (included in the base A extension). This is notable and is
worth a mention on the list of requirements.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -134,6 +134,8 @@ things simple. Hence, here there are some limitations/requirements: target, and that's what you are supposed to be passing to the kernel. - RISC-V is ambivalent on the endianness. Not this kernel. Out of simplicity we require a little-endian RISC-V system. +- This kernel makes use of the `Zaamo` Extension for Atomic Memory Operations, + which is included under the `A` Extension for Atomic Instructions. ## Special thanks to |