Feature changed by: yi li (liyicybertan123) Feature #314469, revision 8 Title: ELI (Exit-Less Interrupts) support for KVM Requested by: yi li (liyicybertan123) Partner organization: openSUSE.org Description: ELI (Exit-Less Interrupts) support Discussion: #1: Michal Svec (msvec) (2013-08-06 15:49:05) We need more details what exactly is requested. + #2: yi li (liyicybertan123) (2013-08-08 15:35:54) (reply to #1) + this idea maybe is the same as apic-v, and the customer has agreed to + close it. -- openSUSE Feature: https://features.opensuse.org/314469

Feature changed by: chen zhen (hydracz) Feature #314469, revision 10 Title: ELI (Exit-Less Interrupts) support for KVM Requested by: yi li (liyicybertan123) Partner organization: openSUSE.org Description: ELI (Exit-Less Interrupts) support Discussion: #1: Michal Svec (msvec) (2013-08-06 15:49:05) We need more details what exactly is requested. #2: yi li (liyicybertan123) (2013-08-08 15:35:54) (reply to #1) this idea maybe is the same as apic-v, and the customer has agreed to close it. #3: yi li (liyicybertan123) (2013-08-08 15:50:00) (reply to #2) this feature is come from the paper http://researcher.watson.ibm.com/researcher/files/il-ABELG/eli_asplos12.pdf. this idea is very the same as apic-v. the Intel has push some patches for it. + #4: chen zhen (hydracz) (2013-08-09 09:14:04) + as we discuss with our partner Huawei, this requirement can be + cancelled, -- openSUSE Feature: https://features.opensuse.org/314469

Feature changed by: Bruce Rogers (bfrogers) Feature #314469, revision 12 Title: ELI (Exit-Less Interrupts) support for KVM Requested by: yi li (liyicybertan123) Partner organization: openSUSE.org Description: ELI (Exit-Less Interrupts) support Discussion: #1: Michal Svec (msvec) (2013-08-06 15:49:05) We need more details what exactly is requested. #2: yi li (liyicybertan123) (2013-08-08 15:35:54) (reply to #1) this idea maybe is the same as apic-v, and the customer has agreed to close it. #3: yi li (liyicybertan123) (2013-08-08 15:50:00) (reply to #2) this feature is come from the paper http://researcher.watson.ibm.com/researcher/files/il-ABELG/eli_asplos12.pdf. this idea is very the same as apic-v. the Intel has push some patches for it. #4: chen zhen (hydracz) (2013-08-09 09:14:04) as we discuss with our partner Huawei, this requirement can be cancelled, #5: Michal Svec (msvec) (2013-08-09 10:25:45) What's the status of this feature upstream? + #6: Bruce Rogers (bfrogers) (2013-08-09 16:13:20) (reply to #5) + My understanding here is that this is would be satisfied by the APIC-V + and posted interrupt support, which is already included for SLE11-SP3. + From what I remember from the 2012 KVM Forum discussion given by + Intel's Jun Nakajima, it was acknowledged that more can be done to + reduce interrupts beyond first round of APIC-V and posted interrupt + patches, but I don't believe anything additional has been posted or + upstreamed. + Here is a link to that session: http://www.linux-kvm.org/wiki/images/7/70/2012-forum-nakajima_apicv.pdf -- openSUSE Feature: https://features.opensuse.org/314469