Re: [Xen-devel] [PATCH] xc_map_foreign_pages(), a convenient alternative to xc_map_foreign_batch()

[Markus Armbruster <armbru@xxxxxxxxxx>]

"Tian, Kevin" <kevin.tian@xxxxxxxxx> writes:

>>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx]
>>Sent: 2007年9月6日 16:47
>>
>>On 6/9/07 08:44, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote:
>>
>>> Just curious why this can't be fixed in kernel driver? Is there case that
>>> caller is tolerable with partial mapping?
>>
>>We would need an extra command in the kernel driver, as the current
>>partial-success semantics are used appropriately by some callers. Doing
>>it
>>in libxc avoids requiring a kernel upgrade to fix this issue.
>>
>> -- Keir
>
> Interesting... any example I can learn? Yes, compatibility is one concern.
>
> Thanks,
> Kevin

Have a look at qemu_remap_bucket() in tools/ioemu/vl.c.

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