[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: [PATCH][RFC] Support S3 for MSI interrupt in latest kernel dom0
>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 17.12.08 16:22 >>> >Well, maybe it's okay then. I don't think Yunhong's patch was a good >argument for it -- looking again it appears to have plenty of not really >related chunks contained in it. I don't think it's really okay as-is: As he indicated, there may be side effects of the changes during other than resume from S3 (in particular the IRQ_GUEST check around the newly added call to ->startup()), and I was hoping you might have a suggestion on how to better distinguish that particular case. In the worst case, Xen has to set another flag in each MSI irq_desc when it resumes from S3, and do the startup as well as the clearing of the flag when map_domain_pirq runs first for that particular vector. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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