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kern: implement transfer memory (and SVCs)

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Michael Scire 2020-07-23 00:44:33 -07:00 • committed by SciresM
parent 28aab09b5d
commit d87a9f011c
8 changed files with 312 additions and 19 deletions
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16
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_process_page_table.hpp
View file

@ -136,6 +136,22 @@ namespace ams::kern::arch::arm64 {
return this->page_table.UnlockForIpcUserBuffer(address, size);
}
Result LockForTransferMemory(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm) {
return this->page_table.LockForTransferMemory(out, address, size, perm);
}
Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup &pg) {
return this->page_table.UnlockForTransferMemory(address, size, pg);
}
Result LockForCodeMemory(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm) {
return this->page_table.LockForCodeMemory(out, address, size, perm);
}
Result UnlockForCodeMemory(KProcessAddress address, size_t size, const KPageGroup &pg) {
return this->page_table.UnlockForCodeMemory(address, size, pg);
}
Result CopyMemoryFromLinearToUser(KProcessAddress dst_addr, size_t size, KProcessAddress src_addr, u32 src_state_mask, u32 src_state, KMemoryPermission src_test_perm, u32 src_attr_mask, u32 src_attr) {
return this->page_table.CopyMemoryFromLinearToUser(dst_addr, size, src_addr, src_state_mask, src_state, src_test_perm, src_attr_mask, src_attr);
}

5
libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp
View file

@ -316,6 +316,11 @@ namespace ams::kern {
Result LockForIpcUserBuffer(KPhysicalAddress *out, KProcessAddress address, size_t size);
Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size);
Result LockForTransferMemory(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm);
Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup &pg);
Result LockForCodeMemory(KPageGroup *out, KProcessAddress address, size_t size, KMemoryPermission perm);
Result UnlockForCodeMemory(KProcessAddress address, size_t size, const KPageGroup &pg);
Result CopyMemoryFromLinearToUser(KProcessAddress dst_addr, size_t size, KProcessAddress src_addr, u32 src_state_mask, u32 src_state, KMemoryPermission src_test_perm, u32 src_attr_mask, u32 src_attr);
Result CopyMemoryFromLinearToKernel(KProcessAddress dst_addr, size_t size, KProcessAddress src_addr, u32 src_state_mask, u32 src_state, KMemoryPermission src_test_perm, u32 src_attr_mask, u32 src_attr);
Result CopyMemoryFromUserToLinear(KProcessAddress dst_addr, size_t size, u32 dst_state_mask, u32 dst_state, KMemoryPermission dst_test_perm, u32 dst_attr_mask, u32 dst_attr, KProcessAddress src_addr);

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

@ -54,8 +54,6 @@ namespace ams::kern {
u64 GetOwnerProcessId() const { return this->owner_process_id; }
size_t GetSize() const { return this->page_group.GetNumPages() * PageSize; }
public:
/* TODO: This is a placeholder definition. */
};
}

28
libraries/libmesosphere/include/mesosphere/kern_k_transfer_memory.hpp
View file

@ -22,8 +22,34 @@ namespace ams::kern {
class KTransferMemory final : public KAutoObjectWithSlabHeapAndContainer<KTransferMemory, KAutoObjectWithList> {
MESOSPHERE_AUTOOBJECT_TRAITS(KTransferMemory, KAutoObject);
private:
TYPED_STORAGE(KPageGroup) page_group;
KProcess *owner;
KProcessAddress address;
KLightLock lock;
ams::svc::MemoryPermission owner_perm;
bool is_initialized;
bool is_mapped;
public:
/* TODO: This is a placeholder definition. */
explicit KTransferMemory() : owner(nullptr), address(Null<KProcessAddress>), owner_perm(ams::svc::MemoryPermission_None), is_initialized(false), is_mapped(false) {
/* ... */
}
virtual ~KTransferMemory() { /* ... */ }
Result Initialize(KProcessAddress addr, size_t size, ams::svc::MemoryPermission own_perm);
virtual void Finalize() override;
virtual bool IsInitialized() const override { return this->is_initialized; }
virtual uintptr_t GetPostDestroyArgument() const override { return reinterpret_cast<uintptr_t>(this->owner); }
static void PostDestroy(uintptr_t arg);
Result Map(KProcessAddress address, size_t size, ams::svc::MemoryPermission map_perm);
Result Unmap(KProcessAddress address, size_t size);
KProcess *GetOwner() const { return this->owner; }
KProcessAddress GetSourceAddress() { return this->address; }
size_t GetSize() const { return this->is_initialized ? GetReference(this->page_group).GetNumPages() * PageSize : 0; }
};
}