Benjamin Herrenschmidt <b...@au1.ibm.com> writes:
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> On Thu, 2016-06-16 at 16:22 +0530, Aneesh Kumar K.V wrote:
>> Hmm Qemu does
>>
>> /* Looks like an IO address */
>> /* FIXME: What WIMG combinations could be sensible for IO?
>> * For now we allow WIMG=010x, but are there others? */
>> /* FIXME: Should we check against registered IO addresses? */
>> if ((ptel & (HPTE64_R_W | HPTE64_R_I | HPTE64_R_M)) != HPTE64_R_I) {
>> return H_PARAMETER;
>> }
>>
>> -aneesh
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> And what do we get ? M ? I think we might be OR'ing it
> unconditionaly...
>
Yes we do. We did that for a long time. But we had special case handing
for the lpar case. I already sent a patch to update that. But I am not
sure whether to fix this in the kernel or in Qemu.
-aneesh
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