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Diffstat (limited to 'hw/pc-testdev.c')
| -rw-r--r-- | hw/pc-testdev.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/hw/pc-testdev.c b/hw/pc-testdev.c deleted file mode 100644 index 8236bce0c7..0000000000 --- a/hw/pc-testdev.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * QEMU x86 ISA testdev - * - * Copyright (c) 2012 Avi Kivity, Gerd Hoffmann, Marcelo Tosatti - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -/* - * This device is used to test KVM features specific to the x86 port, such - * as emulation, power management, interrupt routing, among others. It's meant - * to be used like: - * - * qemu-system-x86_64 -device pc-testdev -serial stdio \ - * -device isa-debug-exit,iobase=0xf4,iosize=0x4 \ - * -kernel /home/lmr/Code/virt-test.git/kvm/unittests/msr.flat - * - * Where msr.flat is one of the KVM unittests, present on a separate repo, - * git://git.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git -*/ - -#include "config-host.h" -#if defined(CONFIG_POSIX) -#include <sys/mman.h> -#endif -#include "hw/hw.h" -#include "hw/qdev.h" -#include "hw/isa.h" - -#define IOMEM_LEN 0x10000 - -typedef struct PCTestdev { - ISADevice parent_obj; - - MemoryRegion ioport; - MemoryRegion flush; - MemoryRegion irq; - MemoryRegion iomem; - uint32_t ioport_data; - char iomem_buf[IOMEM_LEN]; -} PCTestdev; - -#define TYPE_TESTDEV "pc-testdev" -#define TESTDEV(obj) \ - OBJECT_CHECK(PCTestdev, (obj), TYPE_TESTDEV) - -static void test_irq_line(void *opaque, hwaddr addr, uint64_t data, - unsigned len) -{ - PCTestdev *dev = opaque; - ISADevice *isa = ISA_DEVICE(dev); - - qemu_set_irq(isa_get_irq(isa, addr), !!data); -} - -static const MemoryRegionOps test_irq_ops = { - .write = test_irq_line, - .valid.min_access_size = 1, - .valid.max_access_size = 1, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static void test_ioport_write(void *opaque, hwaddr addr, uint64_t data, - unsigned len) -{ - PCTestdev *dev = opaque; - dev->ioport_data = data; -} - -static uint64_t test_ioport_read(void *opaque, hwaddr addr, unsigned len) -{ - PCTestdev *dev = opaque; - return dev->ioport_data; -} - -static const MemoryRegionOps test_ioport_ops = { - .read = test_ioport_read, - .write = test_ioport_write, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static void test_flush_page(void *opaque, hwaddr addr, uint64_t data, - unsigned len) -{ - hwaddr page = 4096; - void *a = cpu_physical_memory_map(data & ~0xffful, &page, 0); - - /* We might not be able to get the full page, only mprotect what we actually - have mapped */ -#if defined(CONFIG_POSIX) - mprotect(a, page, PROT_NONE); - mprotect(a, page, PROT_READ|PROT_WRITE); -#endif - cpu_physical_memory_unmap(a, page, 0, 0); -} - -static const MemoryRegionOps test_flush_ops = { - .write = test_flush_page, - .valid.min_access_size = 4, - .valid.max_access_size = 4, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static uint64_t test_iomem_read(void *opaque, hwaddr addr, unsigned len) -{ - PCTestdev *dev = opaque; - uint64_t ret = 0; - memcpy(&ret, &dev->iomem_buf[addr], len); - ret = le64_to_cpu(ret); - - return ret; -} - -static void test_iomem_write(void *opaque, hwaddr addr, uint64_t val, - unsigned len) -{ - PCTestdev *dev = opaque; - val = cpu_to_le64(val); - memcpy(&dev->iomem_buf[addr], &val, len); - dev->iomem_buf[addr] = val; -} - -static const MemoryRegionOps test_iomem_ops = { - .read = test_iomem_read, - .write = test_iomem_write, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static int init_test_device(ISADevice *isa) -{ - PCTestdev *dev = TESTDEV(isa); - MemoryRegion *mem = isa_address_space(isa); - MemoryRegion *io = isa_address_space_io(isa); - - memory_region_init_io(&dev->ioport, &test_ioport_ops, dev, - "pc-testdev-ioport", 4); - memory_region_init_io(&dev->flush, &test_flush_ops, dev, - "pc-testdev-flush-page", 4); - memory_region_init_io(&dev->irq, &test_irq_ops, dev, - "pc-testdev-irq-line", 24); - memory_region_init_io(&dev->iomem, &test_iomem_ops, dev, - "pc-testdev-iomem", IOMEM_LEN); - - memory_region_add_subregion(io, 0xe0, &dev->ioport); - memory_region_add_subregion(io, 0xe4, &dev->flush); - memory_region_add_subregion(io, 0x2000, &dev->irq); - memory_region_add_subregion(mem, 0xff000000, &dev->iomem); - - return 0; -} - -static void testdev_class_init(ObjectClass *klass, void *data) -{ - ISADeviceClass *k = ISA_DEVICE_CLASS(klass); - - k->init = init_test_device; -} - -static const TypeInfo testdev_info = { - .name = TYPE_TESTDEV, - .parent = TYPE_ISA_DEVICE, - .instance_size = sizeof(PCTestdev), - .class_init = testdev_class_init, -}; - -static void testdev_register_types(void) -{ - type_register_static(&testdev_info); -} - -type_init(testdev_register_types) |