From ba53543da6126b5fe7b3f26e2688272cf11024a3 Mon Sep 17 00:00:00 2001 From: bunnei Date: Thu, 30 Jan 2020 22:39:07 -0500 Subject: kernel: transfer_memory: Properly reserve and reset memory region. --- src/core/hle/kernel/vm_manager.h | 60 +++++++++++++++++++++------------------- 1 file changed, 31 insertions(+), 29 deletions(-) (limited to 'src/core/hle/kernel/vm_manager.h') diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h index 850a7ebc3..90b4b006a 100644 --- a/src/core/hle/kernel/vm_manager.h +++ b/src/core/hle/kernel/vm_manager.h @@ -98,6 +98,8 @@ enum class MemoryAttribute : u32 { DeviceMapped = 4, /// Uncached memory Uncached = 8, + + IpcAndDeviceMapped = LockedForIPC | DeviceMapped, }; constexpr MemoryAttribute operator|(MemoryAttribute lhs, MemoryAttribute rhs) { @@ -654,6 +656,35 @@ public: /// is scheduled. Common::PageTable page_table{Memory::PAGE_BITS}; + using CheckResults = ResultVal>; + + /// Checks if an address range adheres to the specified states provided. + /// + /// @param address The starting address of the address range. + /// @param size The size of the address range. + /// @param state_mask The memory state mask. + /// @param state The state to compare the individual VMA states against, + /// which is done in the form of: (vma.state & state_mask) != state. + /// @param permission_mask The memory permissions mask. + /// @param permissions The permission to compare the individual VMA permissions against, + /// which is done in the form of: + /// (vma.permission & permission_mask) != permission. + /// @param attribute_mask The memory attribute mask. + /// @param attribute The memory attributes to compare the individual VMA attributes + /// against, which is done in the form of: + /// (vma.attributes & attribute_mask) != attribute. + /// @param ignore_mask The memory attributes to ignore during the check. + /// + /// @returns If successful, returns a tuple containing the memory attributes + /// (with ignored bits specified by ignore_mask unset), memory permissions, and + /// memory state across the memory range. + /// @returns If not successful, returns ERR_INVALID_ADDRESS_STATE. + /// + CheckResults CheckRangeState(VAddr address, u64 size, MemoryState state_mask, MemoryState state, + VMAPermission permission_mask, VMAPermission permissions, + MemoryAttribute attribute_mask, MemoryAttribute attribute, + MemoryAttribute ignore_mask) const; + private: using VMAIter = VMAMap::iterator; @@ -707,35 +738,6 @@ private: /// Clears out the page table void ClearPageTable(); - using CheckResults = ResultVal>; - - /// Checks if an address range adheres to the specified states provided. - /// - /// @param address The starting address of the address range. - /// @param size The size of the address range. - /// @param state_mask The memory state mask. - /// @param state The state to compare the individual VMA states against, - /// which is done in the form of: (vma.state & state_mask) != state. - /// @param permission_mask The memory permissions mask. - /// @param permissions The permission to compare the individual VMA permissions against, - /// which is done in the form of: - /// (vma.permission & permission_mask) != permission. - /// @param attribute_mask The memory attribute mask. - /// @param attribute The memory attributes to compare the individual VMA attributes - /// against, which is done in the form of: - /// (vma.attributes & attribute_mask) != attribute. - /// @param ignore_mask The memory attributes to ignore during the check. - /// - /// @returns If successful, returns a tuple containing the memory attributes - /// (with ignored bits specified by ignore_mask unset), memory permissions, and - /// memory state across the memory range. - /// @returns If not successful, returns ERR_INVALID_ADDRESS_STATE. - /// - CheckResults CheckRangeState(VAddr address, u64 size, MemoryState state_mask, MemoryState state, - VMAPermission permission_mask, VMAPermission permissions, - MemoryAttribute attribute_mask, MemoryAttribute attribute, - MemoryAttribute ignore_mask) const; - /// Gets the amount of memory currently mapped (state != Unmapped) in a range. ResultVal SizeOfAllocatedVMAsInRange(VAddr address, std::size_t size) const; -- cgit v1.2.3