Re: [Qemu-devel] [PATCH 19/19] qtest/ahci: Adding simple dma read-write test

[Paolo Bonzini]

On 30/01/2015 19:42, John Snow wrote:
> +    memwrite(ptr, tx, bufsize);
> +
> +    /* Write this buffer to disk, then read it back to the DMA buffer. */
> +    ahci_guest_io(ahci, px, CMD_WRITE_DMA, ptr, bufsize);

I would qmemset the buffer here.

Paolo

> +    ahci_guest_io(ahci, px, CMD_READ_DMA, ptr, bufsize);
> +
> +    /*** Read back the Data ***/
> +    memread(ptr, rx, bufsize);
> +    g_assert_cmphex(memcmp(tx, rx, bufsize), ==, 0);