[Xen-devel] question about patch that allow guest to set/clear MSIx mask bit

["Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx>]

Hi , Jan,

I saw you reverts the patch that allow guest to set/clear MSI-x bit. And you 
only said it is not fully cooked. What's the wrong with this patch?
Actually, we found a bug which introduced by this patch: MSI-x has several 
pirqs that each vector mappings one. So the following assert is wrong:

ASSERT(entry->pirq == pirq);

And I found this patch was reverted before I send out the fixing patch.

commit 8a7769b4453168e23e8935a85e9a875ef5117253
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Mon Aug 26 12:40:44 2013 +0200

    Revert "interrupts: allow guest to set/clear MSI-X mask bit"
    
    This reverts commit 54a46bce768033b1c36e25eace15f7abde972389.
    It's not fully cooked yet.



best regards
yang



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