ich.c (7134B)
1 /* 2 * QEMU ICH Emulation 3 * 4 * Copyright (c) 2010 Sebastian Herbszt <herbszt@gmx.de> 5 * Copyright (c) 2010 Alexander Graf <agraf@suse.de> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 * 20 * 21 * lspci dump of a ICH-9 real device 22 * 23 * 00:1f.2 SATA controller [0106]: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA AHCI Controller [8086:2922] (rev 02) (prog-if 01 [AHCI 1.0]) 24 * Subsystem: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA AHCI Controller [8086:2922] 25 * Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ 26 * Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 27 * Latency: 0 28 * Interrupt: pin B routed to IRQ 222 29 * Region 0: I/O ports at d000 [size=8] 30 * Region 1: I/O ports at cc00 [size=4] 31 * Region 2: I/O ports at c880 [size=8] 32 * Region 3: I/O ports at c800 [size=4] 33 * Region 4: I/O ports at c480 [size=32] 34 * Region 5: Memory at febf9000 (32-bit, non-prefetchable) [size=2K] 35 * Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Count=1/16 Enable+ 36 * Address: fee0f00c Data: 41d9 37 * Capabilities: [70] Power Management version 3 38 * Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-) 39 * Status: D0 PME-Enable- DSel=0 DScale=0 PME- 40 * Capabilities: [a8] SATA HBA <?> 41 * Capabilities: [b0] Vendor Specific Information <?> 42 * Kernel driver in use: ahci 43 * Kernel modules: ahci 44 * 00: 86 80 22 29 07 04 b0 02 02 01 06 01 00 00 00 00 45 * 10: 01 d0 00 00 01 cc 00 00 81 c8 00 00 01 c8 00 00 46 * 20: 81 c4 00 00 00 90 bf fe 00 00 00 00 86 80 22 29 47 * 30: 00 00 00 00 80 00 00 00 00 00 00 00 0f 02 00 00 48 * 40: 00 80 00 80 00 00 00 00 00 00 00 00 00 00 00 00 49 * 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 * 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 * 70: 01 a8 03 40 08 00 00 00 00 00 00 00 00 00 00 00 52 * 80: 05 70 09 00 0c f0 e0 fe d9 41 00 00 00 00 00 00 53 * 90: 40 00 0f 82 93 01 00 00 00 00 00 00 00 00 00 00 54 * a0: ac 00 00 00 0a 00 12 00 12 b0 10 00 48 00 00 00 55 * b0: 09 00 06 20 00 00 00 00 00 00 00 00 00 00 00 00 56 * c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 57 * d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 58 * e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 59 * f0: 00 00 00 00 00 00 00 00 86 0f 02 00 00 00 00 00 60 * 61 */ 62 63 #include "qemu/osdep.h" 64 #include "hw/pci/msi.h" 65 #include "hw/pci/pci.h" 66 #include "migration/vmstate.h" 67 #include "qemu/module.h" 68 #include "hw/isa/isa.h" 69 #include "sysemu/dma.h" 70 #include "hw/ide/pci.h" 71 #include "ahci_internal.h" 72 73 #define ICH9_MSI_CAP_OFFSET 0x80 74 #define ICH9_SATA_CAP_OFFSET 0xA8 75 76 #define ICH9_IDP_BAR 4 77 #define ICH9_MEM_BAR 5 78 79 #define ICH9_IDP_INDEX 0x10 80 #define ICH9_IDP_INDEX_LOG2 0x04 81 82 static const VMStateDescription vmstate_ich9_ahci = { 83 .name = "ich9_ahci", 84 .version_id = 1, 85 .fields = (VMStateField[]) { 86 VMSTATE_PCI_DEVICE(parent_obj, AHCIPCIState), 87 VMSTATE_AHCI(ahci, AHCIPCIState), 88 VMSTATE_END_OF_LIST() 89 }, 90 }; 91 92 static void pci_ich9_reset(DeviceState *dev) 93 { 94 AHCIPCIState *d = ICH9_AHCI(dev); 95 96 ahci_reset(&d->ahci); 97 } 98 99 static void pci_ich9_ahci_init(Object *obj) 100 { 101 struct AHCIPCIState *d = ICH9_AHCI(obj); 102 103 ahci_init(&d->ahci, DEVICE(obj)); 104 } 105 106 static void pci_ich9_ahci_realize(PCIDevice *dev, Error **errp) 107 { 108 struct AHCIPCIState *d; 109 int sata_cap_offset; 110 uint8_t *sata_cap; 111 d = ICH9_AHCI(dev); 112 int ret; 113 114 ahci_realize(&d->ahci, DEVICE(dev), pci_get_address_space(dev), 6); 115 116 pci_config_set_prog_interface(dev->config, AHCI_PROGMODE_MAJOR_REV_1); 117 118 dev->config[PCI_CACHE_LINE_SIZE] = 0x08; /* Cache line size */ 119 dev->config[PCI_LATENCY_TIMER] = 0x00; /* Latency timer */ 120 pci_config_set_interrupt_pin(dev->config, 1); 121 122 /* XXX Software should program this register */ 123 dev->config[0x90] = 1 << 6; /* Address Map Register - AHCI mode */ 124 125 d->ahci.irq = pci_allocate_irq(dev); 126 127 pci_register_bar(dev, ICH9_IDP_BAR, PCI_BASE_ADDRESS_SPACE_IO, 128 &d->ahci.idp); 129 pci_register_bar(dev, ICH9_MEM_BAR, PCI_BASE_ADDRESS_SPACE_MEMORY, 130 &d->ahci.mem); 131 132 sata_cap_offset = pci_add_capability(dev, PCI_CAP_ID_SATA, 133 ICH9_SATA_CAP_OFFSET, SATA_CAP_SIZE, 134 errp); 135 if (sata_cap_offset < 0) { 136 return; 137 } 138 139 sata_cap = dev->config + sata_cap_offset; 140 pci_set_word(sata_cap + SATA_CAP_REV, 0x10); 141 pci_set_long(sata_cap + SATA_CAP_BAR, 142 (ICH9_IDP_BAR + 0x4) | (ICH9_IDP_INDEX_LOG2 << 4)); 143 d->ahci.idp_offset = ICH9_IDP_INDEX; 144 145 /* Although the AHCI 1.3 specification states that the first capability 146 * should be PMCAP, the Intel ICH9 data sheet specifies that the ICH9 147 * AHCI device puts the MSI capability first, pointing to 0x80. */ 148 ret = msi_init(dev, ICH9_MSI_CAP_OFFSET, 1, true, false, NULL); 149 /* Any error other than -ENOTSUP(board's MSI support is broken) 150 * is a programming error. Fall back to INTx silently on -ENOTSUP */ 151 assert(!ret || ret == -ENOTSUP); 152 } 153 154 static void pci_ich9_uninit(PCIDevice *dev) 155 { 156 struct AHCIPCIState *d; 157 d = ICH9_AHCI(dev); 158 159 msi_uninit(dev); 160 ahci_uninit(&d->ahci); 161 qemu_free_irq(d->ahci.irq); 162 } 163 164 static void ich_ahci_class_init(ObjectClass *klass, void *data) 165 { 166 DeviceClass *dc = DEVICE_CLASS(klass); 167 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 168 169 k->realize = pci_ich9_ahci_realize; 170 k->exit = pci_ich9_uninit; 171 k->vendor_id = PCI_VENDOR_ID_INTEL; 172 k->device_id = PCI_DEVICE_ID_INTEL_82801IR; 173 k->revision = 0x02; 174 k->class_id = PCI_CLASS_STORAGE_SATA; 175 dc->vmsd = &vmstate_ich9_ahci; 176 dc->reset = pci_ich9_reset; 177 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 178 } 179 180 static const TypeInfo ich_ahci_info = { 181 .name = TYPE_ICH9_AHCI, 182 .parent = TYPE_PCI_DEVICE, 183 .instance_size = sizeof(AHCIPCIState), 184 .instance_init = pci_ich9_ahci_init, 185 .class_init = ich_ahci_class_init, 186 .interfaces = (InterfaceInfo[]) { 187 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 188 { }, 189 }, 190 }; 191 192 static void ich_ahci_register_types(void) 193 { 194 type_register_static(&ich_ahci_info); 195 } 196 197 type_init(ich_ahci_register_types)