Messages in this thread | | | Date | Thu, 11 Oct 2007 14:30:17 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] [6/12] x86_64: Early segment setup for VT |
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Andi Kleen wrote: > From: Zachary Amsden <zach@vmware.com> > > VT is very picky about when it can enter execution. > Get all segments setup and get LDT and TR into valid state to allow > VT execution under VMware and KVM (untested). > > This makes the boot decompression run under VT, which makes it several > orders of magnitude faster on 64-bit Intel hardware. > > Before, I was seeing times up to a minute or more to decompress a 1.3MB kernel > on a very fast box. > > Signed-off-by: Zachary Amsden <zach@vmware.com> > Signed-off-by: Andi Kleen <ak@suse.de> >
Makes a lot of sense to me.
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