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kern: implement enough of KPageTable to initialize a thread

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This commit is contained in:
Michael Scire
2020-02-13 17:38:56 -08:00
parent c6d1579265
commit 8c93eb5712
31 changed files with 1475 additions and 270 deletions
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22
libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp
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@@ -131,10 +131,10 @@ namespace ams::kern {
static constexpr ALWAYS_INLINE int Compare(const KMemoryRegion &lhs, const KMemoryRegion &rhs) {
if (lhs.GetAddress() < rhs.GetAddress()) {
return -1;
} else if (lhs.GetLastAddress() > rhs.GetLastAddress()) {
return 1;
} else {
} else if (lhs.GetAddress() <= rhs.GetLastAddress()) {
return 0;
} else {
return 1;
}
}
public:
@@ -246,11 +246,7 @@ namespace ams::kern {
constexpr ALWAYS_INLINE KMemoryRegionTree() : tree() { /* ... */ }
public:
iterator FindContainingRegion(uintptr_t address) {
auto it = this->find(KMemoryRegion(address, 1, 0, 0));
MESOSPHERE_INIT_ABORT_UNLESS(it != this->end());
MESOSPHERE_INIT_ABORT_UNLESS(it->Contains(address));
return it;
return this->find(KMemoryRegion(address, 1, 0, 0));
}
iterator FindFirstRegionByTypeAttr(u32 type_id, u32 attr = 0) {
@@ -483,6 +479,16 @@ namespace ams::kern {
return *GetVirtualLinearMemoryRegionTree().FindContainingRegion(GetInteger(address));
}
static NOINLINE bool IsHeapPhysicalAddress(KMemoryRegion **out, KPhysicalAddress address) {
if (auto it = GetPhysicalLinearMemoryRegionTree().FindContainingRegion(GetInteger(address)); it != GetPhysicalLinearMemoryRegionTree().end() && it->IsDerivedFrom(KMemoryRegionType_DramNonKernel)) {
if (out) {
*out = std::addressof(*it);
}
return true;
}
return false;
}
static NOINLINE std::tuple<size_t, size_t> GetTotalAndKernelMemorySizes() {
size_t total_size = 0, kernel_size = 0;
for (auto it = GetPhysicalMemoryRegionTree().cbegin(); it != GetPhysicalMemoryRegionTree().cend(); it++) {