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SubjectRe: [PATCH] [6/12] x86_64: Early segment setup for VT
Andi Kleen wrote:
> From: Zachary Amsden <>
> 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 <>
> Signed-off-by: Andi Kleen <>

Makes a lot of sense to me.

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