* About "(XEN) Interrupt remapping disablde" log @ 2013-11-01 14:49 成会明 2013-11-01 14:53 ` Andrew Cooper 0 siblings, 1 reply; 2+ messages in thread From: 成会明 @ 2013-11-01 14:49 UTC (permalink / raw) To: xen-devel [-- Attachment #1.1: Type: text/plain, Size: 241 bytes --] hi, If Xen dump "(XEN) Interrupt remapping disalbed", can I stll pass through video adapter to domain U ? 1. I think interrupt remapping is must for passthrough pci device which can generate interrupt. right? thanks huiming [-- Attachment #1.2: Type: text/html, Size: 899 bytes --] [-- Attachment #2: Type: text/plain, Size: 126 bytes --] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: About "(XEN) Interrupt remapping disablde" log 2013-11-01 14:49 About "(XEN) Interrupt remapping disablde" log 成会明 @ 2013-11-01 14:53 ` Andrew Cooper 0 siblings, 0 replies; 2+ messages in thread From: Andrew Cooper @ 2013-11-01 14:53 UTC (permalink / raw) To: 成会明; +Cc: xen-devel [-- Attachment #1.1: Type: text/plain, Size: 769 bytes --] On 01/11/13 14:49, 成会明 wrote: > hi, > > > If Xen dump "(XEN) Interrupt remapping disalbed", can I stll pass > through video adapter to domain U ? > > 1. I think interrupt remapping is must for passthrough pci > device which can generate interrupt. right? > > Interrupt remapping is not required for PCIPassthrough to function. Simple DMA remapping is sufficient. Interrupt remapping is required for security reasons. If you are also the administrator of your domU and trust your domU graphics driver not to maliciously attack Xen, then it is ok to not use interrupt remapping. ~Andrew > > thanks > huiming > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel [-- Attachment #1.2: Type: text/html, Size: 1982 bytes --] [-- Attachment #2: Type: text/plain, Size: 126 bytes --] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 2+ messages in thread
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