Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 1 | // Copyright (C) 2019 The Android Open Source Project |
| 2 | // Copyright (C) 2019 Google Inc. |
| 3 | // |
| 4 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | // you may not use this file except in compliance with the License. |
| 6 | // You may obtain a copy of the License at |
| 7 | // |
| 8 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | // |
| 10 | // Unless required by applicable law or agreed to in writing, software |
| 11 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | // See the License for the specific language governing permissions and |
| 14 | // limitations under the License. |
| 15 | |
| 16 | #include <memory> |
| 17 | #include <fcntl.h> |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 18 | #include <lib/zx/channel.h> |
| 19 | #include <lib/zx/vmo.h> |
David Reveman | ecd9e53 | 2019-06-07 09:10:06 -0400 | [diff] [blame] | 20 | #include <log/log.h> |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 21 | #include <stdlib.h> |
| 22 | #include <sys/stat.h> |
| 23 | #include <sys/types.h> |
| 24 | #include <unistd.h> |
| 25 | #include <zircon/process.h> |
| 26 | #include <zircon/syscalls.h> |
| 27 | #include <zircon/syscalls/object.h> |
| 28 | |
| 29 | #include "goldfish_address_space.h" |
John Bauman | 8153a44 | 2019-10-16 15:41:17 -0700 | [diff] [blame] | 30 | #include "services/service_connector.h" |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 31 | |
Lingfeng Yang | 37193ee | 2019-10-15 08:04:36 -0700 | [diff] [blame] | 32 | GoldfishAddressSpaceBlockProvider::GoldfishAddressSpaceBlockProvider(uint64_t subdevice) { |
| 33 | |
| 34 | if (subdevice != SUBDEVICE_TYPE_NO_SUBDEVICE_ID) { |
| 35 | ALOGE("%s: Tried to use a nontrivial subdevice when support has not been added\n", __func__); |
| 36 | abort(); |
| 37 | } |
| 38 | |
John Bauman | 8153a44 | 2019-10-16 15:41:17 -0700 | [diff] [blame] | 39 | zx::channel channel(GetConnectToServiceFunction()(GOLDFISH_ADDRESS_SPACE_DEVICE_NAME)); |
| 40 | if (!channel) { |
| 41 | ALOGE("%s: failed to get service handle for " GOLDFISH_ADDRESS_SPACE_DEVICE_NAME, |
| 42 | __FUNCTION__); |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 43 | return; |
| 44 | } |
| 45 | m_device.Bind(std::move(channel)); |
| 46 | } |
| 47 | |
| 48 | GoldfishAddressSpaceBlockProvider::~GoldfishAddressSpaceBlockProvider() |
| 49 | { |
| 50 | } |
| 51 | |
| 52 | bool GoldfishAddressSpaceBlockProvider::is_opened() const |
| 53 | { |
| 54 | return m_device.is_bound(); |
| 55 | } |
| 56 | |
| 57 | // void GoldfishAddressSpaceBlockProvider::close() - not implemented |
Roman Kiryanov | 754c3eb | 2019-10-10 14:09:23 -0700 | [diff] [blame] | 58 | // address_space_handle_t GoldfishAddressSpaceBlockProvider::release() - not imeplemented |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 59 | |
| 60 | GoldfishAddressSpaceBlock::GoldfishAddressSpaceBlock() |
| 61 | : m_device(NULL) |
| 62 | , m_vmo(ZX_HANDLE_INVALID) |
| 63 | , m_mmaped_ptr(NULL) |
| 64 | , m_phys_addr(0) |
| 65 | , m_host_addr(0) |
| 66 | , m_offset(0) |
| 67 | , m_size(0) {} |
| 68 | |
| 69 | GoldfishAddressSpaceBlock::~GoldfishAddressSpaceBlock() |
| 70 | { |
| 71 | destroy(); |
| 72 | } |
| 73 | |
| 74 | GoldfishAddressSpaceBlock &GoldfishAddressSpaceBlock::operator=(const GoldfishAddressSpaceBlock &rhs) |
| 75 | { |
| 76 | m_vmo = rhs.m_vmo; |
| 77 | m_mmaped_ptr = rhs.m_mmaped_ptr; |
| 78 | m_phys_addr = rhs.m_phys_addr; |
| 79 | m_host_addr = rhs.m_host_addr; |
| 80 | m_offset = rhs.m_offset; |
| 81 | m_size = rhs.m_size; |
| 82 | m_device = rhs.m_device; |
| 83 | |
| 84 | return *this; |
| 85 | } |
| 86 | |
| 87 | bool GoldfishAddressSpaceBlock::allocate(GoldfishAddressSpaceBlockProvider *provider, size_t size) |
| 88 | { |
| 89 | ALOGD("%s: Ask for block of size 0x%llx\n", __func__, |
| 90 | (unsigned long long)size); |
| 91 | |
| 92 | destroy(); |
| 93 | |
| 94 | if (!provider->is_opened()) { |
| 95 | return false; |
| 96 | } |
| 97 | |
Yilong Li | b373b39 | 2019-10-17 15:30:14 -0700 | [diff] [blame] | 98 | fuchsia::hardware::goldfish::AddressSpaceDeviceSyncPtr* device = &provider->m_device; |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 99 | |
| 100 | int32_t res = ZX_OK; |
| 101 | zx::vmo vmo; |
| 102 | zx_status_t status = (*device)->AllocateBlock(size, &res, &m_phys_addr, &vmo); |
| 103 | if (status != ZX_OK || res != ZX_OK) { |
| 104 | ALOGE("%s: allocate block failed: %d:%d", __func__, status, res); |
| 105 | return false; |
| 106 | } |
| 107 | |
| 108 | m_offset = 0; |
| 109 | m_size = size; |
| 110 | m_vmo = vmo.release(); |
| 111 | |
| 112 | ALOGD("%s: allocate returned offset 0x%llx size 0x%llx\n", __func__, |
| 113 | (unsigned long long)m_offset, |
| 114 | (unsigned long long)m_size); |
| 115 | |
| 116 | m_device = device; |
| 117 | return true; |
| 118 | } |
| 119 | |
Lingfeng Yang | 8d04bdd | 2019-10-19 10:59:53 -0700 | [diff] [blame] | 120 | bool GoldfishAddressSpaceBlock::claimShared(GoldfishAddressSpaceBlockProvider *provider, uint64_t offset, uint64_t size) |
| 121 | { |
| 122 | ALOGD("%s: Ask to claim region [0x%llx 0x%llx]\n", __func__, |
| 123 | (unsigned long long)offset, |
| 124 | (unsigned long long)offset + size); |
| 125 | ALOGE("%s: FATAL: claimShared not supported!\n"); |
| 126 | abort(); |
| 127 | } |
| 128 | |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 129 | uint64_t GoldfishAddressSpaceBlock::physAddr() const |
| 130 | { |
| 131 | return m_phys_addr; |
| 132 | } |
| 133 | |
| 134 | uint64_t GoldfishAddressSpaceBlock::hostAddr() const |
| 135 | { |
| 136 | return m_host_addr; |
| 137 | } |
| 138 | |
| 139 | void *GoldfishAddressSpaceBlock::mmap(uint64_t host_addr) |
| 140 | { |
| 141 | if (m_size == 0) { |
| 142 | ALOGE("%s: called with zero size\n", __func__); |
| 143 | return NULL; |
| 144 | } |
| 145 | if (m_mmaped_ptr) { |
| 146 | ALOGE("'mmap' called for an already mmaped address block"); |
| 147 | ::abort(); |
| 148 | } |
| 149 | |
| 150 | zx_vaddr_t ptr = 0; |
| 151 | zx_status_t status = zx_vmar_map(zx_vmar_root_self(), |
| 152 | ZX_VM_PERM_READ | ZX_VM_PERM_WRITE, |
| 153 | 0, m_vmo, |
| 154 | m_offset, |
| 155 | m_size, |
| 156 | &ptr); |
| 157 | if (status != ZX_OK) { |
| 158 | ALOGE("%s: host memory map failed with size 0x%llx " |
| 159 | "off 0x%llx status %d\n", |
| 160 | __func__, |
| 161 | (unsigned long long)m_size, |
| 162 | (unsigned long long)m_offset, status); |
| 163 | return NULL; |
| 164 | } else { |
| 165 | m_mmaped_ptr = (void*)ptr; |
| 166 | m_host_addr = host_addr; |
| 167 | return guestPtr(); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | void *GoldfishAddressSpaceBlock::guestPtr() const |
| 172 | { |
| 173 | return reinterpret_cast<char *>(m_mmaped_ptr) + (m_host_addr & (PAGE_SIZE - 1)); |
| 174 | } |
| 175 | |
| 176 | void GoldfishAddressSpaceBlock::destroy() |
| 177 | { |
| 178 | if (m_mmaped_ptr && m_size) { |
| 179 | zx_vmar_unmap(zx_vmar_root_self(), |
| 180 | (zx_vaddr_t)m_mmaped_ptr, |
| 181 | m_size); |
| 182 | m_mmaped_ptr = NULL; |
| 183 | } |
| 184 | |
| 185 | if (m_size) { |
| 186 | zx_handle_close(m_vmo); |
| 187 | m_vmo = ZX_HANDLE_INVALID; |
| 188 | int32_t res = ZX_OK; |
| 189 | zx_status_t status = (*m_device)->DeallocateBlock(m_phys_addr, &res); |
| 190 | if (status != ZX_OK || res != ZX_OK) { |
| 191 | ALOGE("%s: deallocate block failed: %d:%d", __func__, status, res); |
| 192 | } |
| 193 | m_device = NULL; |
| 194 | m_phys_addr = 0; |
| 195 | m_host_addr = 0; |
| 196 | m_offset = 0; |
| 197 | m_size = 0; |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | GoldfishAddressSpaceHostMemoryAllocator::GoldfishAddressSpaceHostMemoryAllocator() |
Yilong Li | ced3b8a | 2019-10-17 11:47:05 -0700 | [diff] [blame] | 202 | : m_provider(GoldfishAddressSpaceBlockProvider::SUBDEVICE_TYPE_HOST_MEMORY_ALLOCATOR_ID) |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 203 | { |
| 204 | } |
| 205 | |
David Reveman | ecd9e53 | 2019-06-07 09:10:06 -0400 | [diff] [blame] | 206 | long GoldfishAddressSpaceHostMemoryAllocator::hostMalloc(GoldfishAddressSpaceBlock *block, size_t size) |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 207 | { |
| 208 | return 0; |
| 209 | } |
| 210 | |
David Reveman | ecd9e53 | 2019-06-07 09:10:06 -0400 | [diff] [blame] | 211 | void GoldfishAddressSpaceHostMemoryAllocator::hostFree(GoldfishAddressSpaceBlock *block) |
Roman Kiryanov | 7963259 | 2019-06-03 12:31:49 -0700 | [diff] [blame] | 212 | { |
| 213 | } |
Lingfeng Yang | 6000a8e | 2019-10-19 11:56:56 -0700 | [diff] [blame] | 214 | |
| 215 | // TODO: Implement address_space_handle_t interface |
| 216 | address_space_handle_t goldfish_address_space_open() { |
| 217 | ALOGE("%s: not implemented!\n", __func__); |
| 218 | abort(); |
| 219 | } |
| 220 | |
| 221 | void goldfish_address_space_close(address_space_handle_t handle) { |
| 222 | ALOGE("%s: not implemented!\n", __func__); |
| 223 | abort(); |
| 224 | } |
| 225 | |
| 226 | bool goldfish_address_space_allocate( |
| 227 | address_space_handle_t, |
| 228 | size_t, uint64_t*, uint64_t*) { |
| 229 | ALOGE("%s: not implemented!\n", __func__); |
| 230 | abort(); |
| 231 | } |
| 232 | |
| 233 | bool goldfish_address_space_free( |
| 234 | address_space_handle_t, uint64_t) { |
| 235 | ALOGE("%s: not implemented!\n", __func__); |
| 236 | abort(); |
| 237 | } |
| 238 | |
| 239 | bool goldfish_address_space_claim_shared( |
| 240 | address_space_handle_t, uint64_t, uint64_t) { |
| 241 | ALOGE("%s: not implemented!\n", __func__); |
| 242 | abort(); |
| 243 | } |
| 244 | |
| 245 | bool goldfish_address_space_unclaim_shared( |
| 246 | address_space_handle_t, uint64_t) { |
| 247 | ALOGE("%s: not implemented!\n", __func__); |
| 248 | abort(); |
| 249 | } |
| 250 | |
| 251 | // pgoff is the offset into the page to return in the result |
| 252 | void* goldfish_address_space_map( |
| 253 | address_space_handle_t, |
| 254 | uint64_t, uint64_t, |
| 255 | uint64_t) { |
| 256 | ALOGE("%s: not implemented!\n", __func__); |
| 257 | abort(); |
| 258 | } |
| 259 | |
| 260 | void goldfish_address_space_unmap(void*, uint64_t) { |
| 261 | ALOGE("%s: not implemented!\n", __func__); |
| 262 | abort(); |
| 263 | } |
| 264 | |
| 265 | bool goldfish_address_space_ping( |
| 266 | address_space_handle_t handle, |
| 267 | struct goldfish_address_space_ping* ping) { |
| 268 | ALOGE("%s: not implemented!\n", __func__); |
| 269 | abort(); |
| 270 | } |