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kern: add SvcCreateDeviceAddressSpace, SvcAttachDeviceAddressSpace

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This commit is contained in:
Michael Scire 2020-07-14 09:49:49 -07:00 • committed by SciresM
parent 04f325cf5a
commit cfddb75398
6 changed files with 311 additions and 15 deletions
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6
libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_device_page_table.hpp
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@ -53,6 +53,12 @@ namespace ams::kern::board::nintendo::nx {
public:
constexpr KDevicePageTable() : tables(), table_asids(), attached_device(), attached_value(), detached_value(), hs_attached_value(), hs_detached_value() { /* ... */ }
Result Initialize(u64 space_address, u64 space_size);
void Finalize();
Result Attach(ams::svc::DeviceName device_name, u64 space_address, u64 space_size);
Result Detach(ams::svc::DeviceName device_name);
public:
static void Initialize();
};

33
libraries/libmesosphere/include/mesosphere/kern_k_device_address_space.hpp
View file

@ -23,10 +23,39 @@ namespace ams::kern {
class KDeviceAddressSpace final : public KAutoObjectWithSlabHeapAndContainer<KDeviceAddressSpace, KAutoObjectWithList> {
MESOSPHERE_AUTOOBJECT_TRAITS(KDeviceAddressSpace, KAutoObject);
private:
KLightLock lock;
KDevicePageTable table;
u64 space_address;
u64 space_size;
bool is_initialized;
public:
constexpr KDeviceAddressSpace() : lock(), table(), space_address(), space_size(), is_initialized() { /* ... */ }
virtual ~KDeviceAddressSpace() { /* ... */ }
Result Initialize(u64 address, u64 size);
virtual void Finalize() override;
virtual bool IsInitialized() const override { return this->is_initialized; }
static void PostDestroy(uintptr_t arg) { /* ... */ }
Result Attach(ams::svc::DeviceName device_name);
Result Detach(ams::svc::DeviceName device_name);
Result Map(size_t *out_mapped_size, KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm, bool refresh_mappings) {
return this->Map(out_mapped_size, page_table, process_address, size, device_address, device_perm, false, refresh_mappings);
}
Result MapAligned(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm) {
size_t dummy;
return this->Map(std::addressof(dummy), page_table, process_address, size, device_address, device_perm, true, false);
}
Result Unmap(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address);
private:
Result Map(size_t *out_mapped_size, KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm, bool is_aligned, bool refresh_mappings);
public:
static void Initialize();
/* TODO: This is a placeholder definition. */
};
}