Messages in this thread | | | Date | Tue, 30 Nov 2010 09:47:53 +0100 | From | "Roedel, Joerg" <> | Subject | Re: [PATCH 0/9] KVM: Make the instruction emulator aware of Nested Virtualization |
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On Mon, Nov 29, 2010 at 03:01:10PM -0500, Valdis.Kletnieks@vt.edu wrote: > On Mon, 29 Nov 2010 19:32:12 +0100, Joerg Roedel said: > > On Mon, Nov 29, 2010 at 12:23:38PM -0500, Valdis.Kletnieks@vt.edu wrote: > > > (Sorry for late reply...) > > > > > > On Thu, 25 Nov 2010 17:23:13 +0100, "Roedel, Joerg" said: > > > > On Thu, Nov 25, 2010 at 10:17:53AM -0500, Avi Kivity wrote: > > > > > On 11/25/2010 03:13 PM, Roedel, Joerg wrote: > > > > > What about things like adding instructions and forgetting to add the > > > > > corresponding svm.c code? > > > > Cannot happen. Every instruction that can be intercepted with SVM is > > > > already handled in this patch-set. > > > > > > Call us back when Intel releases the i9 and i11 with new instructions > > > that need intercept handling. ;) > > > > How does that affect SVM? > > It will quite possibly include instructions that can be intercepted with SVM > that are not in this patch set. At which point Joerg's comment can apply - it > will be possible to add it in one place and forget to add it in the svm.c code.
SVM is AMD-only. So if an instruction does not exist on AMD there will also be no specific intercept for it. For newly added instructions to the AMD ISA which can then be intercepted I have to do bringup work anyway. This will include adding these intercepts to the code in this patch-set.
Joerg
-- AMD Operating System Research Center
Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632
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