* Re: [kvm-commits] KVM: VMX: Use shadow TPR/cr8 for 64-bits guests [not found] ` <20070823074616.8D45A250D36-LjA0eNSCdXrQnzwC+xcbyw@public.gmane.org> @ 2007-08-23 11:10 ` Gregory Haskins [not found] ` <1187867427.4111.45.camel-5CR4LY5GPkvLDviKLk5550HKjMygAv58XqFh9Ls21Oc@public.gmane.org> 0 siblings, 1 reply; 3+ messages in thread From: Gregory Haskins @ 2007-08-23 11:10 UTC (permalink / raw) To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f On Thu, 2007-08-23 at 10:46 +0300, Avi Kivity wrote: > repository: /home/avi/kvm/linux-2.6 > branch: lapic5 > commit 8ed05c33d82a394c90b5dd830513416e59ffcf68 > Author: Yang, Sheng <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> > Date: Wed Aug 22 15:03:15 2007 +0300 > > KVM: VMX: Use shadow TPR/cr8 for 64-bits guests > > This patch enables TPR shadow of VMX on CR8 access. 64bit Windows using > CR8 access TPR frequently. The TPR shadow can improve the performance of > access TPR by not causing vmexit. > I remember when I added something similar to the lapic series that both of my C2D systems (Merom + Woodcrest) reported that they didn't support the feature in the HW. Since those were fairly new, which ones *do* support this (out of curiosity), or is there a microcode update floating around out there ;). -Greg ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ^ permalink raw reply [flat|nested] 3+ messages in thread
[parent not found: <1187867427.4111.45.camel-5CR4LY5GPkvLDviKLk5550HKjMygAv58XqFh9Ls21Oc@public.gmane.org>]
* Re: [kvm-commits] KVM: VMX: Use shadow TPR/cr8 for 64-bits guests [not found] ` <1187867427.4111.45.camel-5CR4LY5GPkvLDviKLk5550HKjMygAv58XqFh9Ls21Oc@public.gmane.org> @ 2007-08-23 12:51 ` Andi Kleen [not found] ` <20070823125110.GS2642-KvMlXPVkKihbpigZmTR7Iw@public.gmane.org> 0 siblings, 1 reply; 3+ messages in thread From: Andi Kleen @ 2007-08-23 12:51 UTC (permalink / raw) To: Gregory Haskins; +Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f > I remember when I added something similar to the lapic series that both > of my C2D systems (Merom + Woodcrest) reported that they didn't support > the feature in the HW. Since those were fairly new, which ones *do* > support this (out of curiosity), or is there a microcode update floating > around out there ;). It's only supported in Penryn (upcomming 45nm Core2 shrink) AFAIK Intel made a press release about this recently. -Andi ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ^ permalink raw reply [flat|nested] 3+ messages in thread
[parent not found: <20070823125110.GS2642-KvMlXPVkKihbpigZmTR7Iw@public.gmane.org>]
* Re: [kvm-commits] KVM: VMX: Use shadow TPR/cr8 for64-bits guests [not found] ` <20070823125110.GS2642-KvMlXPVkKihbpigZmTR7Iw@public.gmane.org> @ 2007-08-24 13:16 ` Dong, Eddie 0 siblings, 0 replies; 3+ messages in thread From: Dong, Eddie @ 2007-08-24 13:16 UTC (permalink / raw) To: Andi Kleen, Gregory Haskins; +Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org wrote: >> I remember when I added something similar to the lapic series that >> both of my C2D systems (Merom + Woodcrest) reported that they didn't >> support the feature in the HW. Since those were fairly new, which >> ones *do* support this (out of curiosity), or is there a microcode >> update floating around out there ;). Using latest microcode is always better :-) You may see something amazing. thx,eddie ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ^ permalink raw reply [flat|nested] 3+ messages in thread
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2007-08-23 11:10 ` [kvm-commits] KVM: VMX: Use shadow TPR/cr8 for 64-bits guests Gregory Haskins
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2007-08-23 12:51 ` Andi Kleen
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2007-08-24 13:16 ` [kvm-commits] KVM: VMX: Use shadow TPR/cr8 for64-bits guests Dong, Eddie
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