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From: Rusty Russell <rusty@rustcorp.com.au>
To: Andrew Morton <akpm@osdl.org>
Cc: Zachary Amsden <zach@vmware.com>,
	chrisw@sous-sol.org, virtualization@lists.osdl.org,
	xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org
Subject: Re: [patch 7/8] Add a bootparameter to reserve high linear address space.
Date: Sun, 06 Aug 2006 09:17:29 +1000	[thread overview]
Message-ID: <1154819850.29151.3.camel@localhost.localdomain> (raw)
In-Reply-To: <20060805145840.653912a2.akpm@osdl.org>

On Sat, 2006-08-05 at 14:58 -0700, Andrew Morton wrote:
> On Thu, 03 Aug 2006 01:58:32 -0700
> Zachary Amsden <zach@vmware.com> wrote:
> 
> > Add a bootparameter to reserve high linear address space for hypervisors.
> > This is necessary to allow dynamically loaded hypervisor modules, which
> > might not happen until userspace is already running, and also provides a
> > useful tool to benchmark the performance impact of reduced lowmem address
> > space.
> 
> Andi has gone and rotorooted the x86 boot parameter handling in there. 

That was me, via Andi, but yep:

> diff -puN arch/i386/kernel/setup.c~x86-add-a-bootparameter-to-reserve-high-linear-address-space arch/i386/kernel/setup.c
> --- a/arch/i386/kernel/setup.c~x86-add-a-bootparameter-to-reserve-high-linear-address-space
> +++ a/arch/i386/kernel/setup.c
> @@ -149,6 +149,12 @@ static char command_line[COMMAND_LINE_SI
>  
>  unsigned char __initdata boot_params[PARAM_SIZE];
>  
> +static int __init setup_reservetop(char *s)
> +{
> +	return 1;
> +}
> +__setup("reservetop", setup_reservetop);
> +
>  static struct resource data_resource = {
>  	.name	= "Kernel data",
>  	.start	= 0,

Please remove this hunk: it's now junk.

Cheers,
Rusty.
-- 
Help! Save Australia from the worst of the DMCA: http://linux.org.au/law


  parent reply	other threads:[~2006-08-05 23:17 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-03  0:25 [patch 0/8] Basic infrastructure patches for a paravirtualized kernel Jeremy Fitzhardinge
2006-08-03  0:25 ` [patch 1/8] Remove locally-defined ldt structure in favour of standard type Jeremy Fitzhardinge
2006-08-03  0:25 ` [patch 2/8] Implement always-locked bit ops, for memory shared with an SMP hypervisor Jeremy Fitzhardinge
2006-08-03  0:28   ` Christoph Lameter
2006-08-03  0:35     ` Jeremy Fitzhardinge
2006-08-03  1:06       ` Christoph Lameter
2006-08-03  1:18         ` Zachary Amsden
2006-08-03  1:25           ` Christoph Lameter
2006-08-03  3:55             ` Andi Kleen
2006-08-03  4:25               ` Christoph Lameter
2006-08-03  4:47                 ` Andi Kleen
2006-08-03  2:45         ` Andi Kleen
2006-08-03  4:27           ` Christoph Lameter
2006-08-03  4:49             ` Andi Kleen
2006-08-03  5:19               ` Christoph Lameter
2006-08-03  5:25                 ` Andi Kleen
2006-08-03  5:32                   ` Christoph Lameter
2006-08-03  5:39                     ` Andi Kleen
2006-08-03  5:54                       ` Christoph Lameter
2006-08-03  6:02                         ` Andi Kleen
2006-08-03 16:49                           ` Christoph Lameter
2006-08-03 17:18                             ` Chris Wright
2006-08-04  0:47                             ` Andi Kleen
2006-08-04  2:16                               ` Christoph Lameter
2006-08-03  0:25 ` [patch 3/8] Allow a kernel to not be in ring 0 Jeremy Fitzhardinge
2006-08-03  0:25 ` [patch 4/8] Replace sensitive instructions with macros Jeremy Fitzhardinge
2006-08-03  0:25 ` [patch 5/8] Roll all the cpuid asm into one __cpuid call Jeremy Fitzhardinge
2006-08-03  0:25 ` [patch 6/8] Make __FIXADDR_TOP variable to allow it to make space for a hypervisor Jeremy Fitzhardinge
2006-08-03  0:25 ` [patch 7/8] Add a bootparameter to reserve high linear address space Jeremy Fitzhardinge
1970-01-01  0:15   ` Pavel Machek
2006-08-07  2:10     ` Andi Kleen
2010-05-04 23:37     ` Jeremy Fitzhardinge
2006-08-03  6:19   ` Andrew Morton
2006-08-03  7:33     ` Zachary Amsden
2006-08-03  7:41       ` Andrew Morton
2006-08-03  8:58         ` Zachary Amsden
2006-08-05 21:58           ` Andrew Morton
2006-08-05 22:52             ` Zachary Amsden
2006-08-05 23:17             ` Rusty Russell [this message]
2006-08-03  0:25 ` [patch 8/8] Put .note.* sections into a PT_NOTE segment in vmlinux Jeremy Fitzhardinge

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