Re: [Qemu-devel] [PATCH v4 4/6] tests: rename target_big_endian() as qvirtio_is_big_endian()

[Greg Kurz <groug@kaod.org>]

On Fri, 14 Oct 2016 10:58:53 +0200
Laurent Vivier <lvivier@redhat.com> wrote:

> Move the definition to libqos/virtio.h as it must be used
> only with virtio functions.
> 
> Add a QVirtioDevice parameter as it will be needed to
> know if the virtio device is using virtio 1.0 specification
> and thus is always little-endian (to do)
> 
> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  tests/libqos/virtio-pci.c |  2 +-
>  tests/libqos/virtio.h     |  6 ++++++
>  tests/libqtest.h          | 10 ----------
>  tests/virtio-blk-test.c   | 36 ++++++++++++++++++------------------
>  4 files changed, 25 insertions(+), 29 deletions(-)
> 
> diff --git a/tests/libqos/virtio-pci.c b/tests/libqos/virtio-pci.c
> index bbfed58..7aa29b1 100644
> --- a/tests/libqos/virtio-pci.c
> +++ b/tests/libqos/virtio-pci.c
> @@ -86,7 +86,7 @@ static uint64_t qvirtio_pci_config_readq(QVirtioDevice *d, uint64_t addr)
>      int i;
>      uint64_t u64 = 0;
>  
> -    if (target_big_endian()) {
> +    if (qvirtio_is_big_endian(d)) {
>          for (i = 0; i < 8; ++i) {
>              u64 |= (uint64_t)qpci_io_readb(dev->pdev,
>                                  (void *)(uintptr_t)addr + i) << (7 - i) * 8;
> diff --git a/tests/libqos/virtio.h b/tests/libqos/virtio.h
> index ac4669a..3397a08 100644
> --- a/tests/libqos/virtio.h
> +++ b/tests/libqos/virtio.h
> @@ -89,6 +89,12 @@ struct QVirtioBus {
>      void (*virtqueue_kick)(QVirtioDevice *d, QVirtQueue *vq);
>  };
>  
> +static inline bool qvirtio_is_big_endian(QVirtioDevice *d)
> +{
> +    /* FIXME: virtio 1.0 is always little-endian */
> +    return qtest_big_endian(global_qtest);
> +}
> +
>  static inline uint32_t qvring_size(uint32_t num, uint32_t align)
>  {
>      return ((sizeof(struct vring_desc) * num + sizeof(uint16_t) * (3 + num)
> diff --git a/tests/libqtest.h b/tests/libqtest.h
> index 4be1f77..0224f06 100644
> --- a/tests/libqtest.h
> +++ b/tests/libqtest.h
> @@ -881,16 +881,6 @@ static inline int64_t clock_set(int64_t val)
>      return qtest_clock_set(global_qtest, val);
>  }
>  
> -/**
> - * target_big_endian:
> - *
> - * Returns: True if the architecture under test has a big endian configuration.
> - */
> -static inline bool target_big_endian(void)
> -{
> -    return qtest_big_endian(global_qtest);
> -}
> -
>  QDict *qmp_fd_receive(int fd);
>  void qmp_fd_sendv(int fd, const char *fmt, va_list ap);
>  void qmp_fd_send(int fd, const char *fmt, ...);
> diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c
> index 9a6f2cf..79e21c5 100644
> --- a/tests/virtio-blk-test.c
> +++ b/tests/virtio-blk-test.c
> @@ -117,23 +117,23 @@ static QVirtioPCIDevice *virtio_blk_pci_init(QPCIBus *bus, int slot)
>      return dev;
>  }
>  
> -static inline void virtio_blk_fix_request(QVirtioBlkReq *req)
> +static inline void virtio_blk_fix_request(QVirtioDevice *d, QVirtioBlkReq *req)
>  {
>  #ifdef HOST_WORDS_BIGENDIAN
> -    bool host_endian = true;
> +    const bool host_is_big_endian = true;
>  #else
> -    bool host_endian = false;
> +    const bool host_is_big_endian = false;
>  #endif
>  
> -    if (target_big_endian() != host_endian) {
> +    if (qvirtio_is_big_endian(d) != host_is_big_endian) {
>          req->type = bswap32(req->type);
>          req->ioprio = bswap32(req->ioprio);
>          req->sector = bswap64(req->sector);
>      }
>  }
>  
> -static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioBlkReq *req,
> -                                                            uint64_t data_size)
> +static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioDevice *d,
> +                                   QVirtioBlkReq *req, uint64_t data_size)
>  {
>      uint64_t addr;
>      uint8_t status = 0xFF;
> @@ -141,7 +141,7 @@ static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioBlkReq *req,
>      g_assert_cmpuint(data_size % 512, ==, 0);
>      addr = guest_alloc(alloc, sizeof(*req) + data_size);
>  
> -    virtio_blk_fix_request(req);
> +    virtio_blk_fix_request(d, req);
>  
>      memwrite(addr, req, 16);
>      memwrite(addr + 16, req->data, data_size);
> @@ -182,7 +182,7 @@ static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
>      req.data = g_malloc0(512);
>      strcpy(req.data, "TEST");
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, dev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -204,7 +204,7 @@ static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
>      req.sector = 0;
>      req.data = g_malloc0(512);
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, dev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -234,7 +234,7 @@ static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
>          req.data = g_malloc0(512);
>          strcpy(req.data, "TEST");
>  
> -        req_addr = virtio_blk_request(alloc, &req, 512);
> +        req_addr = virtio_blk_request(alloc, dev, &req, 512);
>  
>          g_free(req.data);
>  
> @@ -254,7 +254,7 @@ static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
>          req.sector = 1;
>          req.data = g_malloc0(512);
>  
> -        req_addr = virtio_blk_request(alloc, &req, 512);
> +        req_addr = virtio_blk_request(alloc, dev, &req, 512);
>  
>          g_free(req.data);
>  
> @@ -348,7 +348,7 @@ static void pci_indirect(void)
>      req.data = g_malloc0(512);
>      strcpy(req.data, "TEST");
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, &dev->vdev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -373,7 +373,7 @@ static void pci_indirect(void)
>      req.data = g_malloc0(512);
>      strcpy(req.data, "TEST");
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, &dev->vdev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -495,7 +495,7 @@ static void pci_msix(void)
>      req.data = g_malloc0(512);
>      strcpy(req.data, "TEST");
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, &dev->vdev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -518,7 +518,7 @@ static void pci_msix(void)
>      req.sector = 0;
>      req.data = g_malloc0(512);
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, &dev->vdev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -600,7 +600,7 @@ static void pci_idx(void)
>      req.data = g_malloc0(512);
>      strcpy(req.data, "TEST");
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, &dev->vdev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -618,7 +618,7 @@ static void pci_idx(void)
>      req.data = g_malloc0(512);
>      strcpy(req.data, "TEST");
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, &dev->vdev, &req, 512);
>  
>      g_free(req.data);
>  
> @@ -643,7 +643,7 @@ static void pci_idx(void)
>      req.sector = 1;
>      req.data = g_malloc0(512);
>  
> -    req_addr = virtio_blk_request(alloc, &req, 512);
> +    req_addr = virtio_blk_request(alloc, &dev->vdev, &req, 512);
>  
>      g_free(req.data);
>