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tests: virtio-9p: add basic configuration test 

This adds PCI init code and a basic test that checks the device config
matches what is passed on the command line.

Signed-off-by: Greg Kurz <groug@kaod.org>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Greg Kurz 2016-09-16 08:58:35 +02:00
parent 993f8054d1
commit 557a4cc04a
2 changed files with 78 additions and 1 deletions
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2
tests/Makefile.include
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@ -627,7 +627,7 @@ tests/virtio-blk-test$(EXESUF): tests/virtio-blk-test.o $(libqos-virtio-obj-y)
tests/virtio-net-test$(EXESUF): tests/virtio-net-test.o $(libqos-pc-obj-y) $(libqos-virtio-obj-y)
tests/virtio-rng-test$(EXESUF): tests/virtio-rng-test.o $(libqos-pc-obj-y)
tests/virtio-scsi-test$(EXESUF): tests/virtio-scsi-test.o $(libqos-virtio-obj-y)
tests/virtio-9p-test$(EXESUF): tests/virtio-9p-test.o
tests/virtio-9p-test$(EXESUF): tests/virtio-9p-test.o $(libqos-virtio-obj-y)
tests/virtio-serial-test$(EXESUF): tests/virtio-serial-test.o
tests/virtio-console-test$(EXESUF): tests/virtio-console-test.o
tests/tpci200-test$(EXESUF): tests/tpci200-test.o

77
tests/virtio-9p-test.c
View File

@ -10,6 +10,13 @@
#include "qemu/osdep.h"
#include "libqtest.h"
#include "qemu-common.h"
#include "libqos/pci-pc.h"
#include "libqos/virtio.h"
#include "libqos/virtio-pci.h"
#include "libqos/malloc.h"
#include "libqos/malloc-pc.h"
#include "standard-headers/linux/virtio_ids.h"
#include "standard-headers/linux/virtio_pci.h"
static const char mount_tag[] = "qtest";
static char *test_share;
@ -42,10 +49,80 @@ static void pci_nop(void)
qvirtio_9p_stop();
}
typedef struct {
QVirtioDevice *dev;
QGuestAllocator *alloc;
QPCIBus *bus;
QVirtQueue *vq;
} QVirtIO9P;
static QVirtIO9P *qvirtio_9p_pci_init(void)
{
QVirtIO9P *v9p;
QVirtioPCIDevice *dev;
v9p = g_new0(QVirtIO9P, 1);
v9p->alloc = pc_alloc_init();
v9p->bus = qpci_init_pc();
dev = qvirtio_pci_device_find(v9p->bus, VIRTIO_ID_9P);
g_assert_nonnull(dev);
g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_9P);
v9p->dev = (QVirtioDevice *) dev;
qvirtio_pci_device_enable(dev);
qvirtio_reset(&qvirtio_pci, v9p->dev);
qvirtio_set_acknowledge(&qvirtio_pci, v9p->dev);
qvirtio_set_driver(&qvirtio_pci, v9p->dev);
v9p->vq = qvirtqueue_setup(&qvirtio_pci, v9p->dev, v9p->alloc, 0);
return v9p;
}
static void qvirtio_9p_pci_free(QVirtIO9P *v9p)
{
qvirtqueue_cleanup(&qvirtio_pci, v9p->vq, v9p->alloc);
pc_alloc_uninit(v9p->alloc);
qvirtio_pci_device_disable(container_of(v9p->dev, QVirtioPCIDevice, vdev));
g_free(v9p->dev);
qpci_free_pc(v9p->bus);
g_free(v9p);
}
static void pci_basic_config(void)
{
QVirtIO9P *v9p;
void *addr;
size_t tag_len;
char *tag;
int i;
qvirtio_9p_start();
v9p = qvirtio_9p_pci_init();
addr = ((QVirtioPCIDevice *) v9p->dev)->addr + VIRTIO_PCI_CONFIG_OFF(false);
tag_len = qvirtio_config_readw(&qvirtio_pci, v9p->dev,
(uint64_t)(uintptr_t)addr);
g_assert_cmpint(tag_len, ==, strlen(mount_tag));
addr += sizeof(uint16_t);
tag = g_malloc(tag_len);
for (i = 0; i < tag_len; i++) {
tag[i] = qvirtio_config_readb(&qvirtio_pci, v9p->dev,
(uint64_t)(uintptr_t)addr + i);
}
g_assert_cmpmem(tag, tag_len, mount_tag, tag_len);
g_free(tag);
qvirtio_9p_pci_free(v9p);
qvirtio_9p_stop();
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
qtest_add_func("/virtio/9p/pci/nop", pci_nop);
qtest_add_func("/virtio/9p/pci/basic/configuration", pci_basic_config);
return g_test_run();
}