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7e0fa79412
libvmmapi leaves a hole at [3GB, 4GB) in the guest physical address space. This hole is not used in the arm64 port, which maps everything above 4GB. This change makes the code a bit more general to accomodate arm64 more naturally. In particular: - Remove vm_set_lowmem_limit(): it is unused and doesn't have well-defined constraints, e.g., nothing prevents a consumer from setting a lowmem limit above the highmem base. - Define a constant for the highmem base and use that everywhere that the base is currently hard-coded. - Make the lowmem limit a compile-time constant instead of a vmctx field. - Store segment info in an array. - Add vm_get_highmem_base(), for use in bhyve since the current value is hard-coded in some places. No functional change intended. Reviewed by: corvink, jhb MFC after: 2 weeks Sponsored by: Innovate UK Differential Revision: https://reviews.freebsd.org/D41004 |
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| .. | ||
| amd64 | ||
| internal.h | ||
| Makefile | ||
| Makefile.depend | ||
| ppt.c | ||
| vmmapi.c | ||
| vmmapi.h | ||