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77 lines
2.3 KiB
77 lines
2.3 KiB
// Copyright (C) 2019 The Android Open Source Project
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// Copyright (C) 2019 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "host-common/AddressSpaceService.h"
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#include <memory>
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#include <inttypes.h>
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namespace android {
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namespace base {
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class Stream;
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} // namespace base
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class HostAddressSpaceDevice {
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public:
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HostAddressSpaceDevice();
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static HostAddressSpaceDevice* get();
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void initialize();
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void clear();
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uint32_t open();
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void close(uint32_t handle);
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uint64_t allocBlock(uint32_t handle, size_t size, uint64_t* physAddr);
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void freeBlock(uint32_t handle, uint64_t off);
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void setHostAddr(uint32_t handle, size_t off, void* hva);
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void setHostAddrByPhysAddr(uint64_t physAddr, void* hva);
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void unsetHostAddrByPhysAddr(uint64_t physAddr);
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void* getHostAddr(uint64_t physAddr);
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uint64_t offsetToPhysAddr(uint64_t offset) const;
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void ping(uint32_t handle, emulation::AddressSpaceDevicePingInfo* pingInfo);
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int claimShared(uint32_t handle, uint64_t off, uint64_t size);
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int unclaimShared(uint32_t handle, uint64_t off);
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void saveSnapshot(base::Stream* stream);
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void loadSnapshot(base::Stream* stream);
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// Callbacks for AddressSpaceHwFuncs.
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static int allocSharedHostRegion(uint64_t page_aligned_size, uint64_t* offset);
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static int freeSharedHostRegion(uint64_t offset);
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static int allocSharedHostRegionLocked(uint64_t page_aligned_size, uint64_t* offset);
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static int freeSharedHostRegionLocked(uint64_t offset);
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static int allocSharedHostRegionFixedLocked(uint64_t page_aligned_size, uint64_t offset);
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static uint64_t getPhysAddrStart();
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static uint64_t getPhysAddrStartLocked();
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private:
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class Impl;
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static Impl* getImpl();
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bool mInitialized = false;
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std::unique_ptr<Impl> mImpl;
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};
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} // namespace android
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