justin/jsix_import
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[boot] Fix a bug with address-index translation

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When `page_entry_iterator` became a template and changed its static shifts
translating virtual address to table indices into a for loop, that loop
was getting the indices backwards (ie, PML4E index was really the PTE
index, and so on).

Tags: paging
This commit is contained in:
Justin C. Miller
2020-05-22 00:32:04 -07:00
parent b491a09686
commit e1d148a34d
2 changed files with 13 additions and 4 deletions
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6
src/boot/loader.cpp
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@@ -59,14 +59,14 @@ load(
void *data_start = offset_ptr<void>(data, pheader->offset);
bs->copy_mem(pages, data_start, pheader->mem_size);
console::print(L" Kernel section %d physical: 0x%lx\r\n", i, pages);
console::print(L" Kernel section %d virtual: 0x%lx\r\n", i, pheader->vaddr);
console::print(L" section %d phys: 0x%lx\r\n", i, pages);
console::print(L" section %d virt: 0x%lx\r\n", i, pheader->vaddr);
// TODO: set appropriate RWX permissions
paging::map_pages(pml4, args, reinterpret_cast<uintptr_t>(pages), pheader->vaddr, pheader->mem_size);
}
console::print(L" Kernel entrypoint: 0x%lx\r\n", header->entrypoint);
console::print(L" entrypoint: 0x%lx\r\n", header->entrypoint);
return reinterpret_cast<kernel::entrypoint>(header->entrypoint);
}