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kern: Map L1/L2 blocks when possible

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Michael Scire 2020-07-27 03:00:04 -07:00 • committed by SciresM
parent 4ac94e9179
commit 9dc3e025fc
2 changed files with 88 additions and 7 deletions
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18
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_page_table.hpp
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@ -182,25 +182,31 @@ namespace ams::kern::arch::arm64 {
NOINLINE Result InitializeForProcess(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager);
Result Finalize();
private:
Result Map(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, PageLinkedList *page_list, bool reuse_ll);
Result MapL1Blocks(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, PageLinkedList *page_list, bool reuse_ll);
Result MapL2Blocks(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, PageLinkedList *page_list, bool reuse_ll);
Result MapL3Blocks(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, PageLinkedList *page_list, bool reuse_ll);
Result Unmap(KProcessAddress virt_addr, size_t num_pages, PageLinkedList *page_list, bool force, bool reuse_ll);
Result Map(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, size_t page_size, PageLinkedList *page_list, bool reuse_ll) {
switch (page_size) {
case L1BlockSize:
return this->MapL1Blocks(virt_addr, phys_addr, num_pages, entry_template, page_list, reuse_ll);
case L2ContiguousBlockSize:
entry_template.SetContiguous(true);
[[fallthrough]];
#ifdef ATMOSPHERE_BOARD_NINTENDO_NX
case L2TegraSmmuBlockSize:
#endif
case L2BlockSize:
case L3BlockSize:
break;
case L2ContiguousBlockSize:
return this->MapL2Blocks(virt_addr, phys_addr, num_pages, entry_template, page_list, reuse_ll);
case L3ContiguousBlockSize:
entry_template.SetContiguous(true);
break;
[[fallthrough]];
case L3BlockSize:
return this->MapL3Blocks(virt_addr, phys_addr, num_pages, entry_template, page_list, reuse_ll);
MESOSPHERE_UNREACHABLE_DEFAULT_CASE();
}
return this->Map(virt_addr, phys_addr, num_pages, entry_template, page_list, reuse_ll);
}
Result MapContiguous(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, PageLinkedList *page_list, bool reuse_ll);