From: "H. Peter Anvin" <hpa@zytor.com>
To: Andi Kleen <ak@suse.de>
Cc: zach@vmware.com, patches@x86-64.org,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] [6/12] x86_64: Early segment setup for VT
Date: Thu, 11 Oct 2007 14:30:17 -0700 [thread overview]
Message-ID: <470E95E9.5060703@zytor.com> (raw)
In-Reply-To: <20070809124133.D559014F3B@wotan.suse.de>
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.
-hpa
next prev parent reply other threads:[~2007-10-11 21:30 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-09 12:41 [PATCH] [0/12] x86 Late merge bug fixes for 2.6.23 Andi Kleen
2007-08-09 12:41 ` [PATCH] [1/12] x86: Work around mmio config space quirk on AMD Fam10h Andi Kleen
2007-08-10 10:19 ` [patches] " Joachim Deguara
2007-08-12 9:25 ` Linus Torvalds
2007-08-12 10:03 ` Andi Kleen
2007-08-12 19:15 ` Linus Torvalds
2007-08-13 3:06 ` Dave Jones
2007-08-13 3:26 ` Linus Torvalds
2007-08-13 3:38 ` dean gaudet
2007-08-09 12:41 ` [PATCH] [2/12] x86_64: Calgary - Fix mis-handled PCI topology Andi Kleen
2007-08-09 12:41 ` [PATCH] [3/12] x86_64: Don't mark __exitcall as __cold Andi Kleen
2007-08-09 12:41 ` [PATCH] [4/12] x86_64: Disable CLFLUSH support again Andi Kleen
2007-08-09 12:54 ` [patches] " Jan Beulich
2007-08-09 13:11 ` Muli Ben-Yehuda
2007-08-09 13:12 ` Andi Kleen
2007-08-09 13:29 ` [patches] " Jan Beulich
2007-08-09 16:24 ` Muli Ben-Yehuda
2007-08-09 12:41 ` [PATCH] [5/12] x86_64: Make patching more robust, fix paravirt issue Andi Kleen
2007-08-18 0:05 ` Jeremy Fitzhardinge
2007-08-18 0:11 ` Chris Wright
2007-08-18 9:49 ` Andi Kleen
2007-08-18 20:32 ` Chris Wright
2007-08-18 20:55 ` Linus Torvalds
2007-08-18 21:31 ` Chris Wright
2007-08-18 22:28 ` [PATCH] x86: skip paravirt patching when appropriate Chris Wright
2007-08-19 3:08 ` Zachary Amsden
2007-08-19 5:55 ` Zachary Amsden
2007-08-18 21:58 ` [PATCH] [5/12] x86_64: Make patching more robust, fix paravirt issue Jeremy Fitzhardinge
2007-08-20 1:50 ` Rusty Russell
2007-08-20 2:07 ` Chris Wright
2007-08-20 6:15 ` Jeremy Fitzhardinge
2007-08-21 7:30 ` Glauber de Oliveira Costa
2007-08-21 11:23 ` Andi Kleen
2007-08-21 12:26 ` Glauber de Oliveira Costa
2007-08-09 12:41 ` [PATCH] [6/12] x86_64: Early segment setup for VT Andi Kleen
2007-10-11 21:30 ` H. Peter Anvin [this message]
2007-08-09 12:41 ` [PATCH] [7/12] x86_64: really stop MCEs during code patching Andi Kleen
2007-08-09 12:41 ` [PATCH] [8/12] x86_64: Use global flag to disable broken local apic timer on AMD CPUs Andi Kleen
2007-08-09 16:46 ` Cal Peake
2007-08-09 16:50 ` Andi Kleen
2007-08-09 12:41 ` [PATCH] [9/12] x86_64: Avoid NMI Watchdog and/or long wait in setup_APIC_timer Andi Kleen
2007-08-09 12:41 ` [PATCH] [10/12] x86_64: Add warning in Documentation that zero-page is not a stable ABI Andi Kleen
2007-08-09 12:41 ` [PATCH] [11/12] x86_64: vdso.lds in arch/x86_64/vdso/.gitignore Andi Kleen
2007-08-09 12:41 ` [PATCH] [12/12] x86_64: Fix start_kernel warning Andi Kleen
2007-08-09 13:06 ` [PATCH] [0/12] x86 Late merge bug fixes for 2.6.23 Muli Ben-Yehuda
2007-08-09 13:12 ` Andi Kleen
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