mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-05-24 11:46:58 -04:00
Code Issues Projects Releases Packages Wiki Activity

exo2: minor fixes, now completes main and receives SMCs on hw

Browse source
This commit is contained in:
Michael Scire 2020-05-14 13:06:15 -07:00 • committed by SciresM
parent 27843314a4
commit 8c4c1db506
11 changed files with 134 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

27
exosphere2/program/source/secmon_map.cpp
View file

@ -21,6 +21,9 @@ namespace ams::secmon {
namespace {
constexpr inline const uintptr_t BootCodeAddress = MemoryRegionVirtualTzramBootCode.GetAddress();
constexpr inline const size_t BootCodeSize = MemoryRegionVirtualTzramBootCode.GetSize();
using namespace ams::mmu;
constexpr void UnmapBootCodeImpl(u64 *l1, u64 *l2, u64 *l3, uintptr_t boot_code, size_t boot_code_size) {
@ -39,6 +42,20 @@ namespace ams::secmon {
InvalidateL1Entries(l1, MemoryRegionPhysical.GetAddress(), MemoryRegionPhysical.GetSize());
}
void ClearLow(uintptr_t address, size_t size) {
/* Clear the low part. */
util::ClearMemory(reinterpret_cast<void *>(address), size / 2);
}
void ClearHigh(uintptr_t address, size_t size) {
/* Clear the high part. */
util::ClearMemory(reinterpret_cast<void *>(address + size / 2), size / 2);
}
}
void ClearBootCodeHigh() {
ClearHigh(BootCodeAddress, BootCodeSize);
}
void UnmapBootCode() {
@ -46,15 +63,11 @@ namespace ams::secmon {
u64 * const l1 = MemoryRegionVirtualTzramL1PageTable.GetPointer<u64>();
u64 * const l2_l3 = MemoryRegionVirtualTzramL2L3PageTable.GetPointer<u64>();
/* Get the boot code region. */
const uintptr_t boot_code = MemoryRegionVirtualTzramBootCode.GetAddress();
const size_t boot_code_size = MemoryRegionVirtualTzramBootCode.GetSize();
/* Clear the boot code. */
util::ClearMemory(reinterpret_cast<void *>(boot_code), boot_code_size);
/* Clear the low boot code region; high was already cleared by a previous call. */
ClearLow(BootCodeAddress, BootCodeSize);
/* Unmap. */
UnmapBootCodeImpl(l1, l2_l3, l2_l3, boot_code, boot_code_size);
UnmapBootCodeImpl(l1, l2_l3, l2_l3, BootCodeAddress, BootCodeSize);
/* Ensure the mappings are consistent. */
secmon::EnsureMappingConsistency();