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kern: add KPageTableBase::CopyMemory Linear <-> User and Linear <-> Kernel

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This commit is contained in:
Michael Scire 2020-07-10 20:09:06 -07:00
parent 4a767c9082
commit c72bdec328
6 changed files with 379 additions and 15 deletions
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6
libraries/libmesosphere/source/arch/arm64/kern_k_page_table.cpp
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@ -172,7 +172,7 @@ namespace ams::kern::arch::arm64 {
const KVirtualAddress page = this->manager->Allocate();
MESOSPHERE_ASSERT(page != Null<KVirtualAddress>);
cpu::ClearPageToZero(GetVoidPointer(page));
this->ttbr = GetInteger(KPageTableBase::GetLinearPhysicalAddress(page)) | asid_tag;
this->ttbr = GetInteger(KPageTableBase::GetLinearMappedPhysicalAddress(page)) | asid_tag;
/* Initialize the base page table. */
MESOSPHERE_R_ABORT_UNLESS(KPageTableBase::InitializeForKernel(true, table, start, end));
@ -619,7 +619,7 @@ namespace ams::kern::arch::arm64 {
if (num_pages < ContiguousPageSize / PageSize) {
for (const auto &block : pg) {
const KPhysicalAddress block_phys_addr = GetLinearPhysicalAddress(block.GetAddress());
const KPhysicalAddress block_phys_addr = GetLinearMappedPhysicalAddress(block.GetAddress());
const size_t cur_pages = block.GetNumPages();
R_TRY(this->Map(virt_addr, block_phys_addr, cur_pages, entry_template, L3BlockSize, page_list, reuse_ll));
@ -631,7 +631,7 @@ namespace ams::kern::arch::arm64 {
AlignedMemoryBlock virt_block(GetInteger(virt_addr), num_pages, L1BlockSize);
for (const auto &block : pg) {
/* Create a block representing this physical group, synchronize its alignment to our virtual block. */
const KPhysicalAddress block_phys_addr = GetLinearPhysicalAddress(block.GetAddress());
const KPhysicalAddress block_phys_addr = GetLinearMappedPhysicalAddress(block.GetAddress());
size_t cur_pages = block.GetNumPages();
AlignedMemoryBlock phys_block(GetInteger(block_phys_addr), cur_pages, virt_block.GetAlignment());

2
libraries/libmesosphere/source/arch/arm64/kern_k_supervisor_page_table.cpp
View file

@ -34,7 +34,7 @@ namespace ams::kern::arch::arm64 {
const u64 ttbr1 = cpu::GetTtbr1El1() & 0xFFFFFFFFFFFFul;
const u64 kernel_vaddr_start = 0xFFFFFF8000000000ul;
const u64 kernel_vaddr_end = 0xFFFFFFFFFFE00000ul;
void *table = GetVoidPointer(KPageTableBase::GetLinearVirtualAddress(ttbr1));
void *table = GetVoidPointer(KPageTableBase::GetLinearMappedVirtualAddress(ttbr1));
this->page_table.InitializeForKernel(table, kernel_vaddr_start, kernel_vaddr_end);
}
}