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
  17 #include "hw/pci/pci_regs.h"
  18
  19 #include "qemu-common.h"
  20
  21
  22 #define ACPI_PCIHP_ADDR         0xae00
  23 #define PCI_EJ_BASE             0x0008
  24
  25 typedef struct QPCIBusPC
  26 {
  27     QPCIBus bus;
  28 } QPCIBusPC;
  29
  30 static uint8_t qpci_pc_pio_readb(QPCIBus *bus, uint32_t addr)
  31 {
  32     return inb(addr);
  33 }
  34
  35 static void qpci_pc_pio_writeb(QPCIBus *bus, uint32_t addr, uint8_t val)
  36 {
  37     outb(addr, val);
  38 }
  39
  40 static uint16_t qpci_pc_pio_readw(QPCIBus *bus, uint32_t addr)
  41 {
  42     return inw(addr);
  43 }
  44
  45 static void qpci_pc_pio_writew(QPCIBus *bus, uint32_t addr, uint16_t val)
  46 {
  47     outw(addr, val);
  48 }
  49
  50 static uint32_t qpci_pc_pio_readl(QPCIBus *bus, uint32_t addr)
  51 {
  52     return inl(addr);
  53 }
  54
  55 static void qpci_pc_pio_writel(QPCIBus *bus, uint32_t addr, uint32_t val)
  56 {
  57     outl(addr, val);
  58 }
  59
  60 static uint64_t qpci_pc_pio_readq(QPCIBus *bus, uint32_t addr)
  61 {
  62     return (uint64_t)inl(addr) + ((uint64_t)inl(addr + 4) << 32);
  63 }
  64
  65 static void qpci_pc_pio_writeq(QPCIBus *bus, uint32_t addr, uint64_t val)
  66 {
  67     outl(addr, val & 0xffffffff);
  68     outl(addr + 4, val >> 32);
  69 }
  70
  71 static void qpci_pc_memread(QPCIBus *bus, uint32_t addr, void *buf, size_t len)
  72 {
  73     memread(addr, buf, len);
  74 }
  75
  76 static void qpci_pc_memwrite(QPCIBus *bus, uint32_t addr,
  77                              const void *buf, size_t len)
  78 {
  79     memwrite(addr, buf, len);
  80 }
  81
  82 static uint8_t qpci_pc_config_readb(QPCIBus *bus, int devfn, uint8_t offset)
  83 {
  84     outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
  85     return inb(0xcfc);
  86 }
  87
  88 static uint16_t qpci_pc_config_readw(QPCIBus *bus, int devfn, uint8_t offset)
  89 {
  90     outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
  91     return inw(0xcfc);
  92 }
  93
  94 static uint32_t qpci_pc_config_readl(QPCIBus *bus, int devfn, uint8_t offset)
  95 {
  96     outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
  97     return inl(0xcfc);
  98 }
  99
 100 static void qpci_pc_config_writeb(QPCIBus *bus, int devfn, uint8_t offset, uint8_t value)
 101 {
 102     outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
 103     outb(0xcfc, value);
 104 }
 105
 106 static void qpci_pc_config_writew(QPCIBus *bus, int devfn, uint8_t offset, uint16_t value)
 107 {
 108     outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
 109     outw(0xcfc, value);
 110 }
 111
 112 static void qpci_pc_config_writel(QPCIBus *bus, int devfn, uint8_t offset, uint32_t value)
 113 {
 114     outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
 115     outl(0xcfc, value);
 116 }
 117
 118 QPCIBus *qpci_init_pc(QGuestAllocator *alloc)
 119 {
 120     QPCIBusPC *ret;
 121
 122     ret = g_malloc(sizeof(*ret));
 123
 124     ret->bus.pio_readb = qpci_pc_pio_readb;
 125     ret->bus.pio_readw = qpci_pc_pio_readw;
 126     ret->bus.pio_readl = qpci_pc_pio_readl;
 127     ret->bus.pio_readq = qpci_pc_pio_readq;
 128
 129     ret->bus.pio_writeb = qpci_pc_pio_writeb;
 130     ret->bus.pio_writew = qpci_pc_pio_writew;
 131     ret->bus.pio_writel = qpci_pc_pio_writel;
 132     ret->bus.pio_writeq = qpci_pc_pio_writeq;
 133
 134     ret->bus.memread = qpci_pc_memread;
 135     ret->bus.memwrite = qpci_pc_memwrite;
 136
 137     ret->bus.config_readb = qpci_pc_config_readb;
 138     ret->bus.config_readw = qpci_pc_config_readw;
 139     ret->bus.config_readl = qpci_pc_config_readl;
 140
 141     ret->bus.config_writeb = qpci_pc_config_writeb;
 142     ret->bus.config_writew = qpci_pc_config_writew;
 143     ret->bus.config_writel = qpci_pc_config_writel;
 144
 145     ret->bus.pio_alloc_ptr = 0xc000;
 146     ret->bus.mmio_alloc_ptr = 0xE0000000;
 147     ret->bus.mmio_limit = 0x100000000ULL;
 148
 149     return &ret->bus;
 150 }
 151
 152 void qpci_free_pc(QPCIBus *bus)
 153 {
 154     QPCIBusPC *s = container_of(bus, QPCIBusPC, bus);
 155
 156     g_free(s);
 157 }
 158
 159 void qpci_unplug_acpi_device_test(const char *id, uint8_t slot)
 160 {
 161     QDict *response;
 162     char *cmd;
 163
 164     cmd = g_strdup_printf("{'execute': 'device_del',"
 165                           " 'arguments': {"
 166                           "   'id': '%s'"
 167                           "}}", id);
 168     response = qmp(cmd);
 169     g_free(cmd);
 170     g_assert(response);
 171     g_assert(!qdict_haskey(response, "error"));
 172     QDECREF(response);
 173
 174     outb(ACPI_PCIHP_ADDR + PCI_EJ_BASE, 1 << slot);
 175
 176     response = qmp("");
 177     g_assert(response);
 178     g_assert(qdict_haskey(response, "event"));
 179     g_assert(!strcmp(qdict_get_str(response, "event"), "DEVICE_DELETED"));
 180     QDECREF(response);
 181 }