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kern: implement KCodeMemory (and SVCs)

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Michael Scire 2020-07-28 15:09:07 -07:00 • committed by SciresM
parent 3fb3beeaff
commit 39b22cee8c
6 changed files with 152 additions and 10 deletions
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4
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_process_page_table.hpp
View file

@ -156,8 +156,8 @@ namespace ams::kern::arch::arm64 {
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 LockForCodeMemory(KPageGroup *out, KProcessAddress address, size_t size) {
return this->page_table.LockForCodeMemory(out, address, size);
}
Result UnlockForCodeMemory(KProcessAddress address, size_t size, const KPageGroup &pg) {

29
libraries/libmesosphere/include/mesosphere/kern_k_code_memory.hpp
View file

@ -22,8 +22,35 @@ namespace ams::kern {
class KCodeMemory final : public KAutoObjectWithSlabHeapAndContainer<KCodeMemory, KAutoObjectWithList> {
MESOSPHERE_AUTOOBJECT_TRAITS(KCodeMemory, KAutoObject);
private:
TYPED_STORAGE(KPageGroup) page_group;
KProcess *owner;
KProcessAddress address;
KLightLock lock;
bool is_initialized;
bool is_owner_mapped;
bool is_mapped;
public:
/* TODO: This is a placeholder definition. */
explicit KCodeMemory() : owner(nullptr), address(Null<KProcessAddress>), is_initialized(false), is_owner_mapped(false), is_mapped(false) {
/* ... */
}
virtual ~KCodeMemory() { /* ... */ }
Result Initialize(KProcessAddress address, size_t size);
virtual void Finalize() override;
Result Map(KProcessAddress address, size_t size);
Result Unmap(KProcessAddress address, size_t size);
Result MapToOwner(KProcessAddress address, size_t size, ams::svc::MemoryPermission perm);
Result UnmapFromOwner(KProcessAddress address, size_t size);
virtual bool IsInitialized() const override { return this->is_initialized; }
static void PostDestroy(uintptr_t arg) { /* ... */ }
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; }
};
}

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

@ -331,7 +331,7 @@ namespace ams::kern {
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 LockForCodeMemory(KPageGroup *out, KProcessAddress address, size_t size);
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);