hw/ide/ich.c

   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)