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| author | Gerd Hoffmann <kraxel@redhat.com> | 2018-09-28 08:44:19 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2018-11-05 13:24:02 -0500 |
| commit | 417463341e3e35c9be80f54b0d6ae8cfdb4b0d84 (patch) | |
| tree | afeac5ed5ba1bdb1b2a2cbf313dbae04e8ff19cb /hw/misc/pci-testdev.c | |
| parent | 7115dcf4f19e1d590aec7afe315095af9491dad6 (diff) | |
| download | focaccia-qemu-417463341e3e35c9be80f54b0d6ae8cfdb4b0d84.tar.gz focaccia-qemu-417463341e3e35c9be80f54b0d6ae8cfdb4b0d84.zip | |
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/misc/pci-testdev.c')
| -rw-r--r-- | hw/misc/pci-testdev.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/hw/misc/pci-testdev.c b/hw/misc/pci-testdev.c index 32041f535f..1282d151cb 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 = { |