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
next prev 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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