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kern: add KPageTableBase::CopyMemory Linear <-> User and Linear <-> Kernel

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This commit is contained in:
Michael Scire 2020-07-10 20:09:06 -07:00
parent 4a767c9082
commit c72bdec328
6 changed files with 379 additions and 15 deletions
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42
libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp
View file

@ -546,6 +546,48 @@ namespace ams::kern {
return false;
}
static NOINLINE bool IsLinearMappedPhysicalAddress(const KMemoryRegion **out, KPhysicalAddress address, const KMemoryRegion *hint = nullptr) {
auto &tree = GetPhysicalLinearMemoryRegionTree();
KMemoryRegionTree::const_iterator it = tree.end();
if (hint != nullptr) {
it = tree.iterator_to(*hint);
}
if (it == tree.end() || !it->Contains(GetInteger(address))) {
it = tree.FindContainingRegion(GetInteger(address));
}
if (it != tree.end() && it->IsDerivedFrom(KMemoryRegionAttr_LinearMapped)) {
if (out) {
*out = std::addressof(*it);
}
return true;
}
return false;
}
static NOINLINE bool IsLinearMappedPhysicalAddress(const KMemoryRegion **out, KPhysicalAddress address, size_t size, const KMemoryRegion *hint = nullptr) {
auto &tree = GetPhysicalLinearMemoryRegionTree();
KMemoryRegionTree::const_iterator it = tree.end();
if (hint != nullptr) {
it = tree.iterator_to(*hint);
}
if (it == tree.end() || !it->Contains(GetInteger(address))) {
it = tree.FindContainingRegion(GetInteger(address));
}
if (it != tree.end() && it->IsDerivedFrom(KMemoryRegionAttr_LinearMapped)) {
const uintptr_t last_address = GetInteger(address) + size - 1;
do {
if (last_address <= it->GetLastAddress()) {
if (out) {
*out = std::addressof(*it);
}
return true;
}
it++;
} while (it != tree.end() && it->IsDerivedFrom(KMemoryRegionAttr_LinearMapped));
}
return false;
}
static NOINLINE bool IsHeapVirtualAddress(const KMemoryRegion **out, KVirtualAddress address, const KMemoryRegion *hint = nullptr) {
auto &tree = GetVirtualLinearMemoryRegionTree();
KMemoryRegionTree::const_iterator it = tree.end();

26
libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp
View file

@ -193,6 +193,18 @@ namespace ams::kern {
bool IsLockedByCurrentThread() const { return this->general_lock.IsLockedByCurrentThread(); }
bool IsLinearMappedPhysicalAddress(KPhysicalAddress phys_addr) {
MESOSPHERE_ASSERT(this->IsLockedByCurrentThread());
return KMemoryLayout::IsLinearMappedPhysicalAddress(std::addressof(this->cached_physical_linear_region), phys_addr, this->cached_physical_linear_region);
}
bool IsLinearMappedPhysicalAddress(KPhysicalAddress phys_addr, size_t size) {
MESOSPHERE_ASSERT(this->IsLockedByCurrentThread());
return KMemoryLayout::IsLinearMappedPhysicalAddress(std::addressof(this->cached_physical_linear_region), phys_addr, size, this->cached_physical_linear_region);
}
bool IsHeapPhysicalAddress(KPhysicalAddress phys_addr) {
MESOSPHERE_ASSERT(this->IsLockedByCurrentThread());
@ -224,6 +236,8 @@ namespace ams::kern {
constexpr size_t GetNumGuardPages() const { return this->IsKernel() ? 1 : 4; }
ALWAYS_INLINE KProcessAddress FindFreeArea(KProcessAddress region_start, size_t region_num_pages, size_t num_pages, size_t alignment, size_t offset, size_t guard_pages) const;
Result CheckMemoryStateContiguous(KProcessAddress addr, size_t size, u32 state_mask, u32 state, u32 perm_mask, u32 perm, u32 attr_mask, u32 attr) const;
Result CheckMemoryState(const KMemoryInfo &info, u32 state_mask, u32 state, u32 perm_mask, u32 perm, u32 attr_mask, u32 attr) const;
Result CheckMemoryState(KMemoryState *out_state, KMemoryPermission *out_perm, KMemoryAttribute *out_attr, KProcessAddress addr, size_t size, u32 state_mask, u32 state, u32 perm_mask, u32 perm, u32 attr_mask, u32 attr, u32 ignore_attr = DefaultMemoryIgnoreAttr) const;
Result CheckMemoryState(KProcessAddress addr, size_t size, u32 state_mask, u32 state, u32 perm_mask, u32 perm, u32 attr_mask, u32 attr, u32 ignore_attr = DefaultMemoryIgnoreAttr) const {
@ -313,28 +327,28 @@ namespace ams::kern {
return this->GetHeapRegionSize() + this->mapped_physical_memory_size;
}
public:
static ALWAYS_INLINE KVirtualAddress GetLinearVirtualAddress(KPhysicalAddress addr) {
static ALWAYS_INLINE KVirtualAddress GetLinearMappedVirtualAddress(KPhysicalAddress addr) {
return KMemoryLayout::GetLinearVirtualAddress(addr);
}
static ALWAYS_INLINE KPhysicalAddress GetLinearPhysicalAddress(KVirtualAddress addr) {
static ALWAYS_INLINE KPhysicalAddress GetLinearMappedPhysicalAddress(KVirtualAddress addr) {
return KMemoryLayout::GetLinearPhysicalAddress(addr);
}
static ALWAYS_INLINE KVirtualAddress GetHeapVirtualAddress(KPhysicalAddress addr) {
return GetLinearVirtualAddress(addr);
return GetLinearMappedVirtualAddress(addr);
}
static ALWAYS_INLINE KPhysicalAddress GetHeapPhysicalAddress(KVirtualAddress addr) {
return GetLinearPhysicalAddress(addr);
return GetLinearMappedPhysicalAddress(addr);
}
static ALWAYS_INLINE KVirtualAddress GetPageTableVirtualAddress(KPhysicalAddress addr) {
return GetLinearVirtualAddress(addr);
return GetLinearMappedVirtualAddress(addr);
}
static ALWAYS_INLINE KPhysicalAddress GetPageTablePhysicalAddress(KVirtualAddress addr) {
return GetLinearPhysicalAddress(addr);
return GetLinearMappedPhysicalAddress(addr);
}
};

2
libraries/libmesosphere/include/mesosphere/kern_panic.hpp
View file

@ -20,7 +20,7 @@
namespace ams::kern {
template<typename... ArgTypes>
ALWAYS_INLINE void UnusedImpl(ArgTypes... args) {
ALWAYS_INLINE void UnusedImpl(ArgTypes &&... args) {
(static_cast<void>(args), ...);
}