Re: [Qemu-devel] [PATCH v2] fdc: fix media change detection for windows

[Pavel Hrdina]

Sorry, I forget the qtest. I'll create it and send it again.

Pavel

On 06/05/2012 05:46 PM, Pavel Hrdina wrote:
> The Windows uses 'READ' command at the start of an instalation
> without checking the 'dir' register. We have to abort the transfer
> with an abnormal termination if there is no media in the drive.
>
> We have to also check the 'media_change' bit in the 'fd_seek'. This
> internal seek clears the 'media_change' bit, too, if there is
> a media inserted.
>
> Signed-off-by: Pavel Hrdina<address@hidden>
> ---
>   hw/fdc.c |    7 ++++++-
>   1 files changed, 6 insertions(+), 1 deletions(-)
>
> diff --git a/hw/fdc.c b/hw/fdc.c
> index 30d34e3..2d6dd30 100644
> --- a/hw/fdc.c
> +++ b/hw/fdc.c
> @@ -127,8 +127,13 @@ static int fd_seek(FDrive *drv, uint8_t head, uint8_t 
> track, uint8_t sect,
>       uint32_t sector;
>       int ret;
>
> +    if (drv->bs != NULL&&  bdrv_is_inserted(drv->bs)) {
> +        drv->media_changed = 0;
> +    }
> +
>       if (track>  drv->max_track ||
> -        (head != 0&&  (drv->flags&  FDISK_DBL_SIDES) == 0)) {
> +        (head != 0&&  (drv->flags&  FDISK_DBL_SIDES) == 0) ||
> +        drv->media_changed) {
>           FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
>                          head, track, sect, 1,
>                          (drv->flags&  FDISK_DBL_SIDES) == 0 ? 0 : 1,