Re: [Qemu-devel] How to prevent DomU(windows) to write to certain sector of hard drive

[Shakil k]

On Tue, Oct 29, 2013 at 7:51 AM, Shakil k  wrote:

> I am trying to prevent write from DomU for particular sector of hardisk
> which is passed through QEMU device.
>
> I am putting an error condition in ide.c  using API
> ide_handle_write_error(s, -ret,  BM_STATUS_ERROR) called from
> ide_write_dma_cb, however DomU is still going ahead and writing to those
> sectors.
> Is there a way to prevent DomU from writing to certain sector of hard disk
> as well as propagate those error back to DomU saying, "Write error" or some
> message so that user is notified of error writing to certain sectors of
> disk.
>
> I am not sure if my question is lost in heavy traffic, but can anyone
respond as to how to prevent and propagate the error message from QEMU to
DomU(Windows), I can block the write to certain sectors of hard drive, but
not able to send the error message back to Windows. I want DomU users also
to be notified in case of write errors to certain sectors.

>
> Regards
> Shakil
> ---
>

[Qemu-devel] How to prevent DomU(windows) to write to certain sector of hard drive

[Shakil k]

I am trying to prevent write from DomU for particular sector of hardisk
which is passed through QEMU device.

I am putting an error condition in ide.c  using API
ide_handle_write_error(s, -ret,  BM_STATUS_ERROR) called from
ide_write_dma_cb, however DomU is still going ahead and writing to those
sectors.
Is there a way to prevent DomU from writing to certain sector of hard disk
as well as propagate those error back to DomU saying, "Write error" or some
message so that user is notified of error writing to certain sectors of
disk.


Regards
Shakil
---

[Qemu-devel] How to prevent write to partitcular sector of disk

[Shakil k]

I am trying to prevent write from DomU for particular sector of hardisk
which is passed through QEMU device.

I am putting an error condition in ide.c  using API
ide_handle_write_error(s, -ret,  BM_STATUS_ERROR) called from
ide_write_dma_cb, however DomU is still going ahead and writing to those
sectors.
Is there a way to prevent DomU from writing to certain sector of hard disk
as well as propagate those error back to DomU saying, "Write error" or some
message so that user is notified of error writing to certain sectors of
disk.


Regards
Shakil
---