mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-10 07:06:34 +00:00
46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
|
/*
|
||
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms and conditions of the GNU General Public License,
|
||
|
|
* version 2, as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
#include <mesosphere.hpp>
|
||
|
|
|
||
|
|
namespace ams::kern::arm64 {
|
||
|
|
|
||
|
|
void KPageTable::Initialize(s32 core_id) {
|
||
|
|
/* Nothing actually needed here. */
|
||
|
|
}
|
||
|
|
|
||
|
|
Result KPageTable::InitializeForKernel(void *table, KVirtualAddress start, KVirtualAddress end) {
|
||
|
|
/* Initialize basic fields. */
|
||
|
|
this->asid = 0;
|
||
|
|
this->manager = std::addressof(Kernel::GetPageTableManager());
|
||
|
|
|
||
|
|
/* Allocate a page for ttbr. */
|
||
|
|
const u64 asid_tag = (static_cast<u64>(this->asid) << 48ul);
|
||
|
|
const KVirtualAddress page = this->manager->Allocate();
|
||
|
|
MESOSPHERE_ASSERT(page != Null<KVirtualAddress>);
|
||
|
|
cpu::ClearPageToZero(GetVoidPointer(page));
|
||
|
|
this->ttbr = GetInteger(KPageTableBase::GetLinearPhysicalAddress(page)) | asid_tag;
|
||
|
|
|
||
|
|
/* Initialize the base page table. */
|
||
|
|
MESOSPHERE_R_ABORT_UNLESS(KPageTableBase::InitializeForKernel(true, table, start, end));
|
||
|
|
|
||
|
|
return ResultSuccess();
|
||
|
|
}
|
||
|
|
|
||
|
|
Result KPageTable::Finalize() {
|
||
|
|
MESOSPHERE_TODO_IMPLEMENT();
|
||
|
|
}
|
||
|
|
}
|