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kern: fix KTrace buffer memory region type to match official kernel

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This commit is contained in:
Michael Scire 2020-12-28 00:57:15 -08:00
parent 60c888126b
commit 113ab8439d
3 changed files with 9 additions and 11 deletions
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5
libraries/libmesosphere/include/mesosphere/kern_k_memory_region_type.hpp
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@ -184,14 +184,13 @@ namespace ams::kern {
constexpr inline const auto KMemoryRegionType_DramReservedEarly = KMemoryRegionType_DramReservedBase.DeriveAttribute(KMemoryRegionAttr_NoUserMap);
static_assert(KMemoryRegionType_DramReservedEarly.GetValue() == (0x16 | KMemoryRegionAttr_NoUserMap));
/* UNUSED: DeriveSparse(0, 3, 0); */
constexpr inline const auto KMemoryRegionType_KernelTraceBuffer = KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 0).SetAttribute(KMemoryRegionAttr_LinearMapped).SetAttribute(KMemoryRegionAttr_UserReadOnly);
constexpr inline const auto KMemoryRegionType_OnMemoryBootImage = KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 1);
constexpr inline const auto KMemoryRegionType_DTB = KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 2);
static_assert(KMemoryRegionType_KernelTraceBuffer.GetValue() == (0xD6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_UserReadOnly));
static_assert(KMemoryRegionType_OnMemoryBootImage.GetValue() == 0x156);
static_assert(KMemoryRegionType_DTB.GetValue() == 0x256);
constexpr inline const auto KMemoryRegionType_KernelTraceBuffer = KMemoryRegionType_DramHeapBase.DeriveTransition(1, 3).SetAttribute(KMemoryRegionAttr_UserReadOnly);
static_assert(KMemoryRegionType_KernelTraceBuffer.GetValue() == (0xA6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_UserReadOnly));
constexpr inline const auto KMemoryRegionType_DramPoolPartition = KMemoryRegionType_DramHeapBase.DeriveAttribute(KMemoryRegionAttr_NoUserMap);
static_assert(KMemoryRegionType_DramPoolPartition.GetValue() == (0x26 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap));

7
libraries/libmesosphere/source/kern_k_memory_layout.board.nintendo_nx.cpp
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@ -100,6 +100,13 @@ namespace ams::kern {
/* Insert blocks into the tree. */
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(physical_memory_base_address), intended_memory_size, KMemoryRegionType_Dram));
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(physical_memory_base_address), ReservedEarlyDramSize, KMemoryRegionType_DramReservedEarly));
/* Insert the KTrace block at the end of Dram, if KTrace is enabled. */
static_assert(!IsKTraceEnabled || KTraceBufferSize > 0);
if constexpr (IsKTraceEnabled) {
const KPhysicalAddress ktrace_buffer_phys_addr = physical_memory_base_address + intended_memory_size - KTraceBufferSize;
MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(ktrace_buffer_phys_addr), KTraceBufferSize, KMemoryRegionType_KernelTraceBuffer));
}
}
void SetupPoolPartitionMemoryRegions() {

8
mesosphere/kernel/source/arch/arm64/init/kern_init_core.cpp
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@ -300,14 +300,6 @@ 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) {