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authorPaul Sokolovsky2015-07-06 00:08:33 +0300
committerPaul Sokolovsky2015-07-08 11:37:23 +0300
commit354d17523f599746a84e5b22fa670c9910137947 (patch)
treebfea06b4d85306803cd9a9bb0a3ec6bcdfd25d6c /tests/extmod/machine_mem.py.exp
parenta0a3de60becb0147be209ab5a32139ea9cec3d2e (diff)
modmachine: Implement physical memory access using /dev/mem (Linux, etc).
This requires root access. And on recent Linux kernels, with CONFIG_STRICT_DEVMEM option enabled, only address ranges listed in /proc/iomem can be accessed. The above compiled-time option can be however overriden with boot-time option "iomem=relaxed". This also removed separate read/write paths - there unlikely would be a case when they're different.
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