qemu

FORK: QEMU emulator
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arm-virt-machine.c (3191B)

      1 /*
      2  * libqos driver framework
      3  *
      4  * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Lesser General Public
      8  * License version 2.1 as published by the Free Software Foundation.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Lesser General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Lesser General Public
     16  * License along with this library; if not, see <http://www.gnu.org/licenses/>
     17  */
     18 
     19 #include "qemu/osdep.h"
     20 #include "../libqtest.h"
     21 #include "qemu/module.h"
     22 #include "libqos-malloc.h"
     23 #include "qgraph.h"
     24 #include "virtio-mmio.h"
     25 #include "generic-pcihost.h"
     26 #include "hw/pci/pci_regs.h"
     27 
     28 #define ARM_PAGE_SIZE               4096
     29 #define VIRTIO_MMIO_BASE_ADDR       0x0A003E00
     30 #define ARM_VIRT_RAM_ADDR           0x40000000
     31 #define ARM_VIRT_RAM_SIZE           0x20000000
     32 #define VIRTIO_MMIO_SIZE            0x00000200
     33 
     34 typedef struct QVirtMachine QVirtMachine;
     35 
     36 struct QVirtMachine {
     37     QOSGraphObject obj;
     38     QGuestAllocator alloc;
     39     QVirtioMMIODevice virtio_mmio;
     40     QGenericPCIHost bridge;
     41 };
     42 
     43 static void virt_destructor(QOSGraphObject *obj)
     44 {
     45     QVirtMachine *machine = (QVirtMachine *) obj;
     46     alloc_destroy(&machine->alloc);
     47 }
     48 
     49 static void *virt_get_driver(void *object, const char *interface)
     50 {
     51     QVirtMachine *machine = object;
     52     if (!g_strcmp0(interface, "memory")) {
     53         return &machine->alloc;
     54     }
     55 
     56     fprintf(stderr, "%s not present in arm/virtio\n", interface);
     57     g_assert_not_reached();
     58 }
     59 
     60 static QOSGraphObject *virt_get_device(void *obj, const char *device)
     61 {
     62     QVirtMachine *machine = obj;
     63     if (!g_strcmp0(device, "generic-pcihost")) {
     64         return &machine->bridge.obj;
     65     } else if (!g_strcmp0(device, "virtio-mmio")) {
     66         return &machine->virtio_mmio.obj;
     67     }
     68 
     69     fprintf(stderr, "%s not present in arm/virt\n", device);
     70     g_assert_not_reached();
     71 }
     72 
     73 static void *qos_create_machine_arm_virt(QTestState *qts)
     74 {
     75     QVirtMachine *machine = g_new0(QVirtMachine, 1);
     76 
     77     alloc_init(&machine->alloc, 0,
     78                ARM_VIRT_RAM_ADDR,
     79                ARM_VIRT_RAM_ADDR + ARM_VIRT_RAM_SIZE,
     80                ARM_PAGE_SIZE);
     81     qvirtio_mmio_init_device(&machine->virtio_mmio, qts, VIRTIO_MMIO_BASE_ADDR,
     82                              VIRTIO_MMIO_SIZE);
     83 
     84     qos_create_generic_pcihost(&machine->bridge, qts, &machine->alloc);
     85 
     86     machine->obj.get_device = virt_get_device;
     87     machine->obj.get_driver = virt_get_driver;
     88     machine->obj.destructor = virt_destructor;
     89     return machine;
     90 }
     91 
     92 static void virt_machine_register_nodes(void)
     93 {
     94     qos_node_create_machine("arm/virt", qos_create_machine_arm_virt);
     95     qos_node_contains("arm/virt", "virtio-mmio", NULL);
     96 
     97     qos_node_create_machine_args("aarch64/virt", qos_create_machine_arm_virt,
     98                                  " -cpu max");
     99     qos_node_contains("aarch64/virt", "generic-pcihost", NULL);
    100 }
    101 
    102 libqos_init(virt_machine_register_nodes);