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14c19edaaf
Modify build_mem_region to support an unaligned starting address. This makes it symmetrical with regard to starting and ending partial pages; previously, build_mem_region only support partial pages at the end of a section (caller was responsible for handling the first page). Remove the edge case handling of the first page from build_sections now that build_mem_region does not have alignment restrictions. Change the section_info_t parameter in build_mem_region to be a const reference to eliminate any need to check for a null pointer. Make the raw_data pointer in section_info_t const, as the source file's data should never be modified. This is currently cast away via GET_PTR in build_pages when calling into add_enclave_page; the add_enclave_page flow can be modified by a future commit to retain the const modifier. Add two utilities, is_relocation_page and build_partial_page, to reduce copy-paste code. Add PAGE_OFFSET macro to calculate the offset within a page. Assert on address/size alignment in build_pages and build_context to document expected alignment and catch any related code bugs. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> |
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