Re: [Qemu-devel] [PATCH 05/10] vhost-user-test: support VHOST_USER_PROTOCOL_F_CROSS_ENDIAN

["Marc-André Lureau" <marcandre.lureau@redhat.com>]

Hi

On Thu, Nov 15, 2018 at 6:31 PM Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> This will be useful to run the qtest for ppc64 targets on (for example)
> x86_64 hosts.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>

> ---
>  tests/vhost-user-test.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c
> index 6a805e67be..82fc6c581b 100644
> --- a/tests/vhost-user-test.c
> +++ b/tests/vhost-user-test.c
> @@ -51,6 +51,7 @@
>  #define VHOST_USER_F_PROTOCOL_FEATURES 30
>  #define VHOST_USER_PROTOCOL_F_MQ 0
>  #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
> +#define VHOST_USER_PROTOCOL_F_CROSS_ENDIAN   6
>
>  #define VHOST_LOG_PAGE 0x1000
>
> @@ -251,7 +252,7 @@ static void wait_for_fds(TestServer *s)
>
>  static void read_guest_mem_server(TestServer *s)
>  {
> -    uint32_t *guest_mem;
> +    uint8_t *guest_mem;
>      int i, j;
>      size_t size;
>
> @@ -278,8 +279,8 @@ static void read_guest_mem_server(TestServer *s)
>          g_assert(guest_mem != MAP_FAILED);
>          guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem));
>
> -        for (j = 0; j < 256; j++) {
> -            uint32_t a = readl(s->memory.regions[i].guest_phys_addr + j*4);
> +        for (j = 0; j < 1024; j++) {
> +            uint32_t a = readb(s->memory.regions[i].guest_phys_addr + j);
>              uint32_t b = guest_mem[j];
>
>              g_assert_cmpint(a, ==, b);
> @@ -367,6 +368,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
>          msg.flags |= VHOST_USER_REPLY_MASK;
>          msg.size = sizeof(m.payload.u64);
>          msg.payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
> +        msg.payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_CROSS_ENDIAN;
>          if (s->queues > 1) {
>              msg.payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_MQ;
>          }
> --
> 2.19.1
>
>