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authorGerd Hoffmann <kraxel@redhat.com>2018-09-28 08:44:19 +0200
committerMichael S. Tsirkin <mst@redhat.com>2018-11-05 13:24:02 -0500
commit417463341e3e35c9be80f54b0d6ae8cfdb4b0d84 (patch)
treeafeac5ed5ba1bdb1b2a2cbf313dbae04e8ff19cb /hw
parent7115dcf4f19e1d590aec7afe315095af9491dad6 (diff)
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pci-testdev: add optional memory bar
Add memory bar to pci-testdev. Size is configurable using the membar property. Setting the size to zero (default) turns it off. Can be used to check whether guests handle large pci bars correctly. Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/misc/pci-testdev.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/hw/misc/pci-testdev.c b/hw/misc/pci-testdev.c
index 32041f5..1282d15 100644
--- a/hw/misc/pci-testdev.c
+++ b/hw/misc/pci-testdev.c
@@ -85,6 +85,9 @@ typedef struct PCITestDevState {
MemoryRegion portio;
IOTest *tests;
int current;
+
+ uint64_t membar_size;
+ MemoryRegion membar;
} PCITestDevState;
#define TYPE_PCI_TEST_DEV "pci-testdev"
@@ -253,6 +256,16 @@ static void pci_testdev_realize(PCIDevice *pci_dev, Error **errp)
pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &d->portio);
+ if (d->membar_size) {
+ memory_region_init(&d->membar, OBJECT(d), "pci-testdev-membar",
+ d->membar_size);
+ pci_register_bar(pci_dev, 2,
+ PCI_BASE_ADDRESS_SPACE_MEMORY |
+ PCI_BASE_ADDRESS_MEM_PREFETCH |
+ PCI_BASE_ADDRESS_MEM_TYPE_64,
+ &d->membar);
+ }
+
d->current = -1;
d->tests = g_malloc0(IOTEST_MAX * sizeof *d->tests);
for (i = 0; i < IOTEST_MAX; ++i) {
@@ -305,6 +318,11 @@ static void qdev_pci_testdev_reset(DeviceState *dev)
pci_testdev_reset(d);
}
+static Property pci_testdev_properties[] = {
+ DEFINE_PROP_SIZE("membar", PCITestDevState, membar_size, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void pci_testdev_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@@ -319,6 +337,7 @@ static void pci_testdev_class_init(ObjectClass *klass, void *data)
dc->desc = "PCI Test Device";
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
dc->reset = qdev_pci_testdev_reset;
+ dc->props = pci_testdev_properties;
}
static const TypeInfo pci_testdev_info = {