qemu/tests/qtest/libqos/pci-pc.c
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   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 "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
  24static uint8_t qpci_pc_pio_readb(QPCIBus *bus, uint32_t addr)
  25{
  26    return qtest_inb(bus->qts, addr);
  27}
  28
  29static void qpci_pc_pio_writeb(QPCIBus *bus, uint32_t addr, uint8_t val)
  30{
  31    qtest_outb(bus->qts, addr, val);
  32}
  33
  34static uint16_t qpci_pc_pio_readw(QPCIBus *bus, uint32_t addr)
  35{
  36    return qtest_inw(bus->qts, addr);
  37}
  38
  39static void qpci_pc_pio_writew(QPCIBus *bus, uint32_t addr, uint16_t val)
  40{
  41    qtest_outw(bus->qts, addr, val);
  42}
  43
  44static uint32_t qpci_pc_pio_readl(QPCIBus *bus, uint32_t addr)
  45{
  46    return qtest_inl(bus->qts, addr);
  47}
  48
  49static void qpci_pc_pio_writel(QPCIBus *bus, uint32_t addr, uint32_t val)
  50{
  51    qtest_outl(bus->qts, addr, val);
  52}
  53
  54static 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
  60static 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
  66static 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
  71static 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
  77static 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
  83static 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
  89static 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
  95static 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
 101static 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
 107static 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
 113static 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
 123void 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.pio_limit = 0x10000;
 154    qpci->bus.mmio_alloc_ptr = 0xE0000000;
 155    qpci->bus.mmio_limit = 0x100000000ULL;
 156
 157    qpci->obj.get_driver = qpci_pc_get_driver;
 158}
 159
 160QPCIBus *qpci_new_pc(QTestState *qts, QGuestAllocator *alloc)
 161{
 162    QPCIBusPC *qpci = g_new0(QPCIBusPC, 1);
 163    qpci_init_pc(qpci, qts, alloc);
 164
 165    return &qpci->bus;
 166}
 167
 168void qpci_free_pc(QPCIBus *bus)
 169{
 170    QPCIBusPC *s;
 171
 172    if (!bus) {
 173        return;
 174    }
 175    s = container_of(bus, QPCIBusPC, bus);
 176
 177    g_free(s);
 178}
 179
 180void qpci_unplug_acpi_device_test(QTestState *qts, const char *id, uint8_t slot)
 181{
 182    qtest_qmp_device_del_send(qts, id);
 183
 184    qtest_outl(qts, ACPI_PCIHP_ADDR + PCI_EJ_BASE, 1 << slot);
 185
 186    qtest_qmp_eventwait(qts, "DEVICE_DELETED");
 187}
 188
 189static void qpci_pc_register_nodes(void)
 190{
 191    qos_node_create_driver("pci-bus-pc", NULL);
 192    qos_node_produces("pci-bus-pc", "pci-bus");
 193}
 194
 195libqos_init(qpci_pc_register_nodes);
 196