Commit b7faba71 authored by Paolo Bonzini's avatar Paolo Bonzini Committed by Anthony Liguori
Browse files

pc-testdev: support 8 and 16-bit accesses to 0xe0 



This will let us use the testdev to test endianness.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-17-git-send-email-pbonzini@redhat.com
Signed-off-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
parent f36a6382

hw/misc/pc-testdev.c

+9 −2
Original line number Diff line number Diff line
@@ -80,13 +80,20 @@ static void test_ioport_write(void *opaque, hwaddr addr, uint64_t data, 
                              unsigned len)

{

    PCTestdev *dev = opaque;

    dev->ioport_data = data;

    int bits = len * 8;

    int start_bit = (addr & 3) * 8;

    uint32_t mask = ((uint32_t)-1 >> (32 - bits)) << start_bit;

    dev->ioport_data &= ~mask;

    dev->ioport_data |= data << start_bit;

}



static uint64_t test_ioport_read(void *opaque, hwaddr addr, unsigned len)

{

    PCTestdev *dev = opaque;

    return dev->ioport_data;

    int bits = len * 8;

    int start_bit = (addr & 3) * 8;

    uint32_t mask = ((uint32_t)-1 >> (32 - bits)) << start_bit;

    return (dev->ioport_data & mask) >> start_bit;

}



static const MemoryRegionOps test_ioport_ops = {