On Fri, 16 Sep 2016 20:03:29 +0200
Greg Kurz wrote:
> This adds a simple test to validate the device is functional: it transmits
> a request with type Terror, which is not used by the 9P protocol [1], and
> expects QEMU to return a reply with type Rerror and the "Operation not
> supported" error string.
>
> [1] http://lxr.free-electrons.com/source/include/net/9p/9p.h#L121
>
> Signed-off-by: Greg Kurz
> Acked-by: Cornelia Huck
> ---
Hi Peter,
The endianness issue need some more work, so I'll simply drop this patch from
the pull request.
Sorry for the noise :)
Cheers.
--
Greg
> tests/virtio-9p-test.c | 65
> ++
> 1 file changed, 65 insertions(+)
>
> diff --git a/tests/virtio-9p-test.c b/tests/virtio-9p-test.c
> index b8fb6cd869a9..95cba3fd3e8e 100644
> --- a/tests/virtio-9p-test.c
> +++ b/tests/virtio-9p-test.c
> @@ -8,6 +8,7 @@
> */
>
> #include "qemu/osdep.h"
> +#include
> #include "libqtest.h"
> #include "qemu-common.h"
> #include "libqos/pci-pc.h"
> @@ -17,6 +18,9 @@
> #include "libqos/malloc-pc.h"
> #include "standard-headers/linux/virtio_ids.h"
> #include "standard-headers/linux/virtio_pci.h"
> +#include "hw/9pfs/9p.h"
> +
> +#define QVIRTIO_9P_TIMEOUT_US (1 * 1000 * 1000)
>
> static const char mount_tag[] = "qtest";
> static char *test_share;
> @@ -118,11 +122,72 @@ static void pci_basic_config(void)
> qvirtio_9p_stop();
> }
>
> +typedef struct VirtIO9PHdr {
> +uint32_t size;
> +uint8_t id;
> +uint16_t tag;
> +} QEMU_PACKED VirtIO9PHdr;
> +
> +typedef struct VirtIO9PMsgRError {
> +uint16_t error_len;
> +char error[0];
> +} QEMU_PACKED VirtIO9PMsgRError;
> +
> +#define P9_MAX_SIZE 8192
> +
> +static void pci_basic_transaction(void)
> +{
> +QVirtIO9P *v9p;
> +VirtIO9PHdr hdr;
> +VirtIO9PMsgRError *resp;
> +uint64_t req_addr, resp_addr;
> +uint32_t free_head;
> +char *expected_error = strerror(ENOTSUP);
> +
> +qvirtio_9p_start();
> +v9p = qvirtio_9p_pci_init();
> +
> +hdr.size = cpu_to_le32(sizeof(hdr));
> +hdr.id = P9_TERROR;
> +hdr.tag = cpu_to_le16(12345);
> +
> +req_addr = guest_alloc(v9p->alloc, hdr.size);
> +memwrite(req_addr, &hdr, sizeof(hdr));
> +free_head = qvirtqueue_add(v9p->vq, req_addr, hdr.size, false, true);
> +
> +resp_addr = guest_alloc(v9p->alloc, P9_MAX_SIZE);
> +qvirtqueue_add(v9p->vq, resp_addr, P9_MAX_SIZE, true, false);
> +
> +qvirtqueue_kick(&qvirtio_pci, v9p->dev, v9p->vq, free_head);
> +guest_free(v9p->alloc, req_addr);
> +qvirtio_wait_queue_isr(&qvirtio_pci, v9p->dev, v9p->vq,
> + QVIRTIO_9P_TIMEOUT_US);
> +
> +memread(resp_addr, &hdr, sizeof(hdr));
> +le32_to_cpus(&hdr.size);
> +le16_to_cpus(&hdr.tag);
> +g_assert_cmpint(hdr.size, <, (uint32_t) P9_MAX_SIZE);
> +g_assert_cmpint(hdr.id, ==, (uint8_t) P9_RERROR);
> +g_assert_cmpint(hdr.tag, ==, (uint16_t) 12345);
> +
> +resp = g_malloc(hdr.size);
> +memread(resp_addr + sizeof(hdr), resp, hdr.size - sizeof(hdr));
> +guest_free(v9p->alloc, resp_addr);
> +le16_to_cpus(&resp->error_len);
> +g_assert_cmpmem(resp->error, resp->error_len, expected_error,
> +strlen(expected_error));
> +g_free(resp);
> +
> +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);
> +qtest_add_func("/virtio/9p/pci/basic/transaction",
> pci_basic_transaction);
>
> return g_test_run();
> }