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tests/libqos: virtio-mmio driver and interface nodes 

Add virtio-mmio node in qgraph framework.
virtio-mmio produces virtio-bus, the interface consumed by all virtio-*-device
nodes.

Being a memory-mapped device, it doesn't have to provide a constructor
to qgraph, since it's always "contained" inside some other nodes.

Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Emanuele Giuseppe Esposito 2018-07-19 15:14:44 +02:00 committed by Paolo Bonzini
parent d5006a45f5
commit 57ed038ad9
3 changed files with 77 additions and 48 deletions
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116
tests/libqos/virtio-mmio.c
View File

@ -12,74 +12,74 @@
#include "libqos/virtio.h"
#include "libqos/virtio-mmio.h"
#include "libqos/malloc.h"
#include "libqos/malloc-generic.h"
#include "libqos/qgraph.h"
#include "standard-headers/linux/virtio_ring.h"
static uint8_t qvirtio_mmio_config_readb(QVirtioDevice *d, uint64_t off)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
return readb(dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return qtest_readb(dev->qts, dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
}
static uint16_t qvirtio_mmio_config_readw(QVirtioDevice *d, uint64_t off)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
return readw(dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return qtest_readw(dev->qts, dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
}
static uint32_t qvirtio_mmio_config_readl(QVirtioDevice *d, uint64_t off)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
return readl(dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
}
static uint64_t qvirtio_mmio_config_readq(QVirtioDevice *d, uint64_t off)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
return readq(dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return qtest_readq(dev->qts, dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
}
static uint32_t qvirtio_mmio_get_features(QVirtioDevice *d)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
writel(dev->addr + QVIRTIO_MMIO_HOST_FEATURES_SEL, 0);
return readl(dev->addr + QVIRTIO_MMIO_HOST_FEATURES);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_HOST_FEATURES_SEL, 0);
return qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_HOST_FEATURES);
}
static void qvirtio_mmio_set_features(QVirtioDevice *d, uint32_t features)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
dev->features = features;
writel(dev->addr + QVIRTIO_MMIO_GUEST_FEATURES_SEL, 0);
writel(dev->addr + QVIRTIO_MMIO_GUEST_FEATURES, features);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_GUEST_FEATURES_SEL, 0);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_GUEST_FEATURES, features);
}
static uint32_t qvirtio_mmio_get_guest_features(QVirtioDevice *d)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return dev->features;
}
static uint8_t qvirtio_mmio_get_status(QVirtioDevice *d)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
return (uint8_t)readl(dev->addr + QVIRTIO_MMIO_DEVICE_STATUS);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return (uint8_t)qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_DEVICE_STATUS);
}
static void qvirtio_mmio_set_status(QVirtioDevice *d, uint8_t status)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
writel(dev->addr + QVIRTIO_MMIO_DEVICE_STATUS, (uint32_t)status);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_DEVICE_STATUS, (uint32_t)status);
}
static bool qvirtio_mmio_get_queue_isr_status(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
uint32_t isr;
isr = readl(dev->addr + QVIRTIO_MMIO_INTERRUPT_STATUS) & 1;
isr = qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_INTERRUPT_STATUS) & 1;
if (isr != 0) {
writel(dev->addr + QVIRTIO_MMIO_INTERRUPT_ACK, 1);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_INTERRUPT_ACK, 1);
return true;
}
@ -88,12 +88,12 @@ static bool qvirtio_mmio_get_queue_isr_status(QVirtioDevice *d, QVirtQueue *vq)
static bool qvirtio_mmio_get_config_isr_status(QVirtioDevice *d)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
uint32_t isr;
isr = readl(dev->addr + QVIRTIO_MMIO_INTERRUPT_STATUS) & 2;
isr = qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_INTERRUPT_STATUS) & 2;
if (isr != 0) {
writel(dev->addr + QVIRTIO_MMIO_INTERRUPT_ACK, 2);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_INTERRUPT_ACK, 2);
return true;
}
@ -102,34 +102,34 @@ static bool qvirtio_mmio_get_config_isr_status(QVirtioDevice *d)
static void qvirtio_mmio_queue_select(QVirtioDevice *d, uint16_t index)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
writel(dev->addr + QVIRTIO_MMIO_QUEUE_SEL, (uint32_t)index);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_SEL, (uint32_t)index);
g_assert_cmphex(readl(dev->addr + QVIRTIO_MMIO_QUEUE_PFN), ==, 0);
g_assert_cmphex(qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_PFN), ==, 0);
}
static uint16_t qvirtio_mmio_get_queue_size(QVirtioDevice *d)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
return (uint16_t)readl(dev->addr + QVIRTIO_MMIO_QUEUE_NUM_MAX);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return (uint16_t)qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_NUM_MAX);
}
static void qvirtio_mmio_set_queue_address(QVirtioDevice *d, uint32_t pfn)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
writel(dev->addr + QVIRTIO_MMIO_QUEUE_PFN, pfn);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_PFN, pfn);
}
static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
QGuestAllocator *alloc, uint16_t index)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
QVirtQueue *vq;
uint64_t addr;
vq = g_malloc0(sizeof(*vq));
qvirtio_mmio_queue_select(d, index);
writel(dev->addr + QVIRTIO_MMIO_QUEUE_ALIGN, dev->page_size);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_ALIGN, dev->page_size);
vq->index = index;
vq->size = qvirtio_mmio_get_queue_size(d);
@ -139,7 +139,7 @@ static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
vq->indirect = (dev->features & (1u << VIRTIO_RING_F_INDIRECT_DESC)) != 0;
vq->event = (dev->features & (1u << VIRTIO_RING_F_EVENT_IDX)) != 0;
writel(dev->addr + QVIRTIO_MMIO_QUEUE_NUM, vq->size);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_NUM, vq->size);
/* Check different than 0 */
g_assert_cmpint(vq->size, !=, 0);
@ -163,8 +163,8 @@ static void qvirtio_mmio_virtqueue_cleanup(QVirtQueue *vq,
static void qvirtio_mmio_virtqueue_kick(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
writel(dev->addr + QVIRTIO_MMIO_QUEUE_NOTIFY, vq->index);
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_NOTIFY, vq->index);
}
const QVirtioBus qvirtio_mmio = {
@ -187,21 +187,45 @@ const QVirtioBus qvirtio_mmio = {
.virtqueue_kick = qvirtio_mmio_virtqueue_kick,
};
QVirtioMMIODevice *qvirtio_mmio_init_device(uint64_t addr, uint32_t page_size)
static void *qvirtio_mmio_get_driver(void *obj, const char *interface)
{
QVirtioMMIODevice *dev;
uint32_t magic;
dev = g_malloc0(sizeof(*dev));
QVirtioMMIODevice *virtio_mmio = obj;
if (!g_strcmp0(interface, "virtio-bus")) {
return &virtio_mmio->vdev;
}
fprintf(stderr, "%s not present in virtio-mmio\n", interface);
g_assert_not_reached();
}
magic = readl(addr + QVIRTIO_MMIO_MAGIC_VALUE);
static void qvirtio_mmio_start_hw(QOSGraphObject *obj)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *) obj;
qvirtio_start_device(&dev->vdev);
}
void qvirtio_mmio_init_device(QVirtioMMIODevice *dev, QTestState *qts,
uint64_t addr, uint32_t page_size)
{
uint32_t magic;
magic = qtest_readl(qts, addr + QVIRTIO_MMIO_MAGIC_VALUE);
g_assert(magic == ('v' | 'i' << 8 | 'r' << 16 | 't' << 24));
dev->qts = qts;
dev->addr = addr;
dev->page_size = page_size;
dev->vdev.device_type = readl(addr + QVIRTIO_MMIO_DEVICE_ID);
dev->vdev.device_type = qtest_readl(qts, addr + QVIRTIO_MMIO_DEVICE_ID);
dev->vdev.bus = &qvirtio_mmio;
writel(addr + QVIRTIO_MMIO_GUEST_PAGE_SIZE, page_size);
qtest_writel(qts, addr + QVIRTIO_MMIO_GUEST_PAGE_SIZE, page_size);
return dev;
dev->obj.get_driver = qvirtio_mmio_get_driver;
dev->obj.start_hw = qvirtio_mmio_start_hw;
}
static void virtio_mmio_register_nodes(void)
{
qos_node_create_driver("virtio-mmio", NULL);
qos_node_produces("virtio-mmio", "virtio-bus");
}
libqos_init(virtio_mmio_register_nodes);

6
tests/libqos/virtio-mmio.h
View File

@ -11,6 +11,7 @@
#define LIBQOS_VIRTIO_MMIO_H
#include "libqos/virtio.h"
#include "libqos/qgraph.h"
#define QVIRTIO_MMIO_MAGIC_VALUE 0x000
#define QVIRTIO_MMIO_VERSION 0x004
@ -33,7 +34,9 @@
#define QVIRTIO_MMIO_DEVICE_SPECIFIC 0x100
typedef struct QVirtioMMIODevice {
QOSGraphObject obj;
QVirtioDevice vdev;
QTestState *qts;
uint64_t addr;
uint32_t page_size;
uint32_t features; /* As it cannot be read later, save it */
@ -41,6 +44,7 @@ typedef struct QVirtioMMIODevice {
extern const QVirtioBus qvirtio_mmio;
QVirtioMMIODevice *qvirtio_mmio_init_device(uint64_t addr, uint32_t page_size);
void qvirtio_mmio_init_device(QVirtioMMIODevice *dev, QTestState *qts,
uint64_t addr, uint32_t page_size);
#endif

3
tests/virtio-blk-test.c
View File

@ -833,7 +833,8 @@ static void mmio_basic(void)
arm_test_start();
dev = qvirtio_mmio_init_device(MMIO_DEV_BASE_ADDR, MMIO_PAGE_SIZE);
dev = g_malloc0(sizeof(QVirtioMMIODevice));
qvirtio_mmio_init_device(dev, global_qtest, MMIO_DEV_BASE_ADDR, MMIO_PAGE_SIZE);
g_assert(dev != NULL);
g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);