mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-05-20 09:55:07 -04:00
Code Issues Projects Releases Packages Wiki Activity

kern: SvcChangeKernelTraceState

Browse source
This commit is contained in:
Michael Scire 2020-07-31 17:01:01 -07:00 • committed by SciresM
parent 89f1c0ce33
commit f9d68db3f6
10 changed files with 279 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

51
mesosphere/kernel/source/arch/arm64/init/kern_init_core.cpp
View file

@ -183,6 +183,11 @@ namespace ams::kern::init {
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(misc_unk_debug_virt_addr), MiscUnknownDebugRegionSize, KMemoryRegionType_KernelMiscUnknownDebug));
ttbr1_table.Map(misc_unk_debug_virt_addr, MiscUnknownDebugRegionSize, misc_unk_debug_phys_addr, KernelRoDataAttribute, g_initial_page_allocator);
}
constexpr size_t MiscUnknownDebugRegionSize = PageSize;
constexpr size_t MiscUnknownDebugRegionAlign = PageSize;
const KVirtualAddress misc_unk_debug_virt_addr = KMemoryLayout::GetVirtualMemoryRegionTree().GetRandomAlignedRegionWithGuard(MiscUnknownDebugRegionSize, MiscUnknownDebugRegionAlign, KMemoryRegionType_KernelMisc, PageSize);
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(GetInteger(misc_unk_debug_virt_addr), MiscUnknownDebugRegionSize, KMemoryRegionType_KernelMiscUnknownDebug));
ttbr1_table.Map(misc_unk_debug_virt_addr, MiscUnknownDebugRegionSize, misc_unk_debug_phys_addr, KernelRoDataAttribute, g_initial_page_allocator);
/* Setup board-specific device physical regions. */
SetupDevicePhysicalMemoryRegions();
@ -241,6 +246,14 @@ namespace ams::kern::init {
/* Insert a physical region for the kernel page table heap region */
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(slab_end_phys_addr), page_table_heap_size, KMemoryRegionType_DramKernelPtHeap));
/* Insert a physical region for the kernel trace buffer. */
static_assert(!IsKTraceEnabled || KTraceBufferSize > 0);
if constexpr (IsKTraceEnabled) {
const auto dram_extents = KMemoryLayout::GetMainMemoryPhysicalExtents();
const KPhysicalAddress ktrace_buffer_phys_addr = dram_extents.GetEndAddress() - KTraceBufferSize;
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(ktrace_buffer_phys_addr), KTraceBufferSize, KMemoryRegionType_KernelTraceBuffer));
}
/* All DRAM regions that we haven't tagged by this point will be mapped under the linear mapping. Tag them. */
for (auto &region : KMemoryLayout::GetPhysicalMemoryRegionTree()) {
if (region.GetType() == KMemoryRegionType_Dram) {
@ -258,17 +271,37 @@ namespace ams::kern::init {
const uintptr_t linear_region_phys_to_virt_diff = GetInteger(linear_region_start) - GetInteger(aligned_linear_phys_start);
/* Map and create regions for all the linearly-mapped data. */
for (auto &region : KMemoryLayout::GetPhysicalMemoryRegionTree()) {
if (!region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
continue;
{
uintptr_t cur_phys_addr = 0;
uintptr_t cur_size = 0;
for (auto &region : KMemoryLayout::GetPhysicalMemoryRegionTree()) {
if (!region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
continue;
}
if (cur_phys_addr == 0) {
cur_phys_addr = region.GetAddress();
cur_size = region.GetSize();
} else if (cur_phys_addr + cur_size == region.GetAddress()) {
cur_size += region.GetSize();
} else {
const uintptr_t cur_virt_addr = cur_phys_addr + linear_region_phys_to_virt_diff;
ttbr1_table.Map(cur_virt_addr, cur_size, cur_phys_addr, KernelRwDataAttribute, g_initial_page_allocator);
cur_phys_addr = region.GetAddress();
cur_size = region.GetSize();
}
const uintptr_t region_virt_addr = region.GetAddress() + linear_region_phys_to_virt_diff;
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(region_virt_addr, region.GetSize(), GetTypeForVirtualLinearMapping(region.GetType())));
region.SetPairAddress(region_virt_addr);
KMemoryLayout::GetVirtualMemoryRegionTree().FindContainingRegion(region_virt_addr)->SetPairAddress(region.GetAddress());
}
const uintptr_t region_virt_addr = region.GetAddress() + linear_region_phys_to_virt_diff;
ttbr1_table.Map(region_virt_addr, region.GetSize(), region.GetAddress(), KernelRwDataAttribute, g_initial_page_allocator);
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetVirtualMemoryRegionTree().Insert(region_virt_addr, region.GetSize(), GetTypeForVirtualLinearMapping(region.GetType())));
region.SetPairAddress(region_virt_addr);
KMemoryLayout::GetVirtualMemoryRegionTree().FindContainingRegion(region_virt_addr)->SetPairAddress(region.GetAddress());
/* Map the last block, which we may have skipped. */
if (cur_phys_addr != 0) {
const uintptr_t cur_virt_addr = cur_phys_addr + linear_region_phys_to_virt_diff;
ttbr1_table.Map(cur_virt_addr, cur_size, cur_phys_addr, KernelRwDataAttribute, g_initial_page_allocator);
}
}
/* Create regions for and map all core-specific stacks. */