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physmem: Add physmem_excluded to query if a region is excluded

Description

physmem: Add physmem_excluded to query if a region is excluded

In order to safely reuse excluded memory when it's reserved for special
purpose, we need to test whether or not the memory has been reserved
early in boot. physmem_excluded will return true when the entire range
is excluded, false otherwise.

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Details

Provenance
impAuthored on Oct 6 2022, 3:55 AM
Parents
rGecb167daf761: efi: Add linux memory reserve table defniitions
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