tests/libqos/pci-pc.c

   1 /*
   2  * libqos PCI bindings for PC
   3  *
   4  * Copyright IBM, Corp. 2012-2013
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #include "qemu/osdep.h"
  14 #include "libqtest.h"
  15 #include "libqos/pci-pc.h"
  16 #include "qapi/qmp/qdict.h"
  17 #include "hw/pci/pci_regs.h"
  18
  19 #include "qemu/module.h"
  20
  21 #define ACPI_PCIHP_ADDR         0xae00
  22 #define PCI_EJ_BASE             0x0008
  23
  24 static uint8_t qpci_pc_pio_readb(QPCIBus *bus, uint32_t addr)
  25 {
  26     return qtest_inb(bus->qts, addr);
  27 }
  28
  29 static void qpci_pc_pio_writeb(QPCIBus *bus, uint32_t addr, uint8_t val)
  30 {
  31     qtest_outb(bus->qts, addr, val);
  32 }
  33
  34 static uint16_t qpci_pc_pio_readw(QPCIBus *bus, uint32_t addr)
  35 {
  36     return qtest_inw(bus->qts, addr);
  37 }
  38
  39 static void qpci_pc_pio_writew(QPCIBus *bus, uint32_t addr, uint16_t val)
  40 {
  41     qtest_outw(bus->qts, addr, val);
  42 }
  43
  44 static uint32_t qpci_pc_pio_readl(QPCIBus *bus, uint32_t addr)
  45 {
  46     return qtest_inl(bus->qts, addr);
  47 }
  48
  49 static void qpci_pc_pio_writel(QPCIBus *bus, uint32_t addr, uint32_t val)
  50 {
  51     qtest_outl(bus->qts, addr, val);
  52 }
  53
  54 static uint64_t qpci_pc_pio_readq(QPCIBus *bus, uint32_t addr)
  55 {
  56     return (uint64_t)qtest_inl(bus->qts, addr) +
  57         ((uint64_t)qtest_inl(bus->qts, addr + 4) << 32);
  58 }
  59
  60 static void qpci_pc_pio_writeq(QPCIBus *bus, uint32_t addr, uint64_t val)
  61 {
  62     qtest_outl(bus->qts, addr, val & 0xffffffff);
  63     qtest_outl(bus->qts, addr + 4, val >> 32);
  64 }
  65
  66 static void qpci_pc_memread(QPCIBus *bus, uint32_t addr, void *buf, size_t len)
  67 {
  68     qtest_memread(bus->qts, addr, buf, len);
  69 }
  70
  71 static void qpci_pc_memwrite(QPCIBus *bus, uint32_t addr,
  72                              const void *buf, size_t len)
  73 {
  74     qtest_memwrite(bus->qts, addr, buf, len);
  75 }
  76
  77 static uint8_t qpci_pc_config_readb(QPCIBus *bus, int devfn, uint8_t offset)
  78 {
  79     qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
  80     return qtest_inb(bus->qts, 0xcfc);
  81 }
  82
  83 static uint16_t qpci_pc_config_readw(QPCIBus *bus, int devfn, uint8_t offset)
  84 {
  85     qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
  86     return qtest_inw(bus->qts, 0xcfc);
  87 }
  88
  89 static uint32_t qpci_pc_config_readl(QPCIBus *bus, int devfn, uint8_t offset)
  90 {
  91     qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
  92     return qtest_inl(bus->qts, 0xcfc);
  93 }
  94
  95 static void qpci_pc_config_writeb(QPCIBus *bus, int devfn, uint8_t offset, uint8_t value)
  96 {
  97     qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
  98     qtest_outb(bus->qts, 0xcfc, value);
  99 }
 100
 101 static void qpci_pc_config_writew(QPCIBus *bus, int devfn, uint8_t offset, uint16_t value)
 102 {
 103     qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
 104     qtest_outw(bus->qts, 0xcfc, value);
 105 }
 106
 107 static void qpci_pc_config_writel(QPCIBus *bus, int devfn, uint8_t offset, uint32_t value)
 108 {
 109     qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
 110     qtest_outl(bus->qts, 0xcfc, value);
 111 }
 112
 113 static void *qpci_pc_get_driver(void *obj, const char *interface)
 114 {
 115     QPCIBusPC *qpci = obj;
 116     if (!g_strcmp0(interface, "pci-bus")) {
 117         return &qpci->bus;
 118     }
 119     fprintf(stderr, "%s not present in pci-bus-pc\n", interface);
 120     g_assert_not_reached();
 121 }
 122
 123 void qpci_init_pc(QPCIBusPC *qpci, QTestState *qts, QGuestAllocator *alloc)
 124 {
 125     assert(qts);
 126
 127     /* tests can use pci-bus */
 128     qpci->bus.has_buggy_msi = false;
 129
 130     qpci->bus.pio_readb = qpci_pc_pio_readb;
 131     qpci->bus.pio_readw = qpci_pc_pio_readw;
 132     qpci->bus.pio_readl = qpci_pc_pio_readl;
 133     qpci->bus.pio_readq = qpci_pc_pio_readq;
 134
 135     qpci->bus.pio_writeb = qpci_pc_pio_writeb;
 136     qpci->bus.pio_writew = qpci_pc_pio_writew;
 137     qpci->bus.pio_writel = qpci_pc_pio_writel;
 138     qpci->bus.pio_writeq = qpci_pc_pio_writeq;
 139
 140     qpci->bus.memread = qpci_pc_memread;
 141     qpci->bus.memwrite = qpci_pc_memwrite;
 142
 143     qpci->bus.config_readb = qpci_pc_config_readb;
 144     qpci->bus.config_readw = qpci_pc_config_readw;
 145     qpci->bus.config_readl = qpci_pc_config_readl;
 146
 147     qpci->bus.config_writeb = qpci_pc_config_writeb;
 148     qpci->bus.config_writew = qpci_pc_config_writew;
 149     qpci->bus.config_writel = qpci_pc_config_writel;
 150
 151     qpci->bus.qts = qts;
 152     qpci->bus.pio_alloc_ptr = 0xc000;
 153     qpci->bus.mmio_alloc_ptr = 0xE0000000;
 154     qpci->bus.mmio_limit = 0x100000000ULL;
 155
 156     qpci->obj.get_driver = qpci_pc_get_driver;
 157 }
 158
 159 QPCIBus *qpci_new_pc(QTestState *qts, QGuestAllocator *alloc)
 160 {
 161     QPCIBusPC *qpci = g_new0(QPCIBusPC, 1);
 162     qpci_init_pc(qpci, qts, alloc);
 163
 164     return &qpci->bus;
 165 }
 166
 167 void qpci_free_pc(QPCIBus *bus)
 168 {
 169     QPCIBusPC *s;
 170
 171     if (!bus) {
 172         return;
 173     }
 174     s = container_of(bus, QPCIBusPC, bus);
 175
 176     g_free(s);
 177 }
 178
 179 void qpci_unplug_acpi_device_test(QTestState *qts, const char *id, uint8_t slot)
 180 {
 181     QDict *response;
 182
 183     response = qtest_qmp(qts, "{'execute': 'device_del',"
 184                               " 'arguments': {'id': %s}}", id);
 185     g_assert(response);
 186     g_assert(!qdict_haskey(response, "error"));
 187     qobject_unref(response);
 188
 189     qtest_outb(qts, ACPI_PCIHP_ADDR + PCI_EJ_BASE, 1 << slot);
 190
 191     qtest_qmp_eventwait(qts, "DEVICE_DELETED");
 192 }
 193
 194 static void qpci_pc_register_nodes(void)
 195 {
 196     qos_node_create_driver("pci-bus-pc", NULL);
 197     qos_node_produces("pci-bus-pc", "pci-bus");
 198 }
 199
 200 libqos_init(qpci_pc_register_nodes);