Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 207 insertions, 0 deletions

diff --git a/qemu/hw/misc/pc-testdev.c b/qemu/hw/misc/pc-testdev.c
new file mode 100644
index 000000000..18e94e07b
--- /dev/null
+++ b/qemu/hw/misc/pc-testdev.c
@@ -0,0 +1,207 @@
+/*
+ * 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/isa.h"
+
+#define IOMEM_LEN    0x10000
+
+typedef struct PCTestdev {
+    ISADevice parent_obj;
+
+    MemoryRegion ioport;
+    MemoryRegion ioport_byte;
+    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;
+    int bits = len * 8;
+    int start_bit = (addr & 3) * 8;
+    uint32_t mask = ((uint32_t)-1 >> (32 - bits)) << start_bit;
+    dev->ioport_data &= ~mask;
+    dev->ioport_data |= data << start_bit;
+}
+
+static uint64_t test_ioport_read(void *opaque, hwaddr addr, unsigned len)
+{
+    PCTestdev *dev = opaque;
+    int bits = len * 8;
+    int start_bit = (addr & 3) * 8;
+    uint32_t mask = ((uint32_t)-1 >> (32 - bits)) << start_bit;
+    return (dev->ioport_data & mask) >> start_bit;
+}
+
+static const MemoryRegionOps test_ioport_ops = {
+    .read = test_ioport_read,
+    .write = test_ioport_write,
+    .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static const MemoryRegionOps test_ioport_byte_ops = {
+    .read = test_ioport_read,
+    .write = test_ioport_write,
+    .valid.min_access_size = 1,
+    .valid.max_access_size = 4,
+    .impl.min_access_size = 1,
+    .impl.max_access_size = 1,
+    .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);
+
+    return ret;
+}
+
+static void test_iomem_write(void *opaque, hwaddr addr, uint64_t val,
+                             unsigned len)
+{
+    PCTestdev *dev = opaque;
+    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 void testdev_realizefn(DeviceState *d, Error **errp)
+{
+    ISADevice *isa = ISA_DEVICE(d);
+    PCTestdev *dev = TESTDEV(d);
+    MemoryRegion *mem = isa_address_space(isa);
+    MemoryRegion *io = isa_address_space_io(isa);
+
+    memory_region_init_io(&dev->ioport, OBJECT(dev), &test_ioport_ops, dev,
+                          "pc-testdev-ioport", 4);
+    memory_region_init_io(&dev->ioport_byte, OBJECT(dev),
+                          &test_ioport_byte_ops, dev,
+                          "pc-testdev-ioport-byte", 4);
+    memory_region_init_io(&dev->flush, OBJECT(dev), &test_flush_ops, dev,
+                          "pc-testdev-flush-page", 4);
+    memory_region_init_io(&dev->irq, OBJECT(dev), &test_irq_ops, dev,
+                          "pc-testdev-irq-line", 24);
+    memory_region_init_io(&dev->iomem, OBJECT(dev), &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,  0xe8,       &dev->ioport_byte);
+    memory_region_add_subregion(io,  0x2000,     &dev->irq);
+    memory_region_add_subregion(mem, 0xff000000, &dev->iomem);
+}
+
+static void testdev_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+    dc->realize = testdev_realizefn;
+}
+
+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)