[Xen-devel] Re: [patch][vtd] Remove ASSERT in hvmloader.c when assigning disk controller to a guest

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

If the device is not PIIX3 IDE then presumably we should not do the two
pci_writew() invocations either? Words 0x40 and 0x42 in the PCI config space
could have a completely different purpose in a different IDE controller.

 -- Keir

On 25/6/08 12:21, "Zhang, Li" <li.zhang@xxxxxxxxx> wrote:

> Hi, 
> If boot a HVM guest configured with a physical disk, it will check the
> device id of emulated device and then check physical device. But the
> device id of physical device is not necessary 0x7010. So ASSERT may
> fail, and the guest crashes at this point. This patch removes the ASSERT
> of vendor_id and device_id, to assign SATA controller to guest.
> 
> Signed-off-by: Li Zhang <li.zhang@xxxxxxxxx>
> 
> Thanks
> -Li
> 



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