Re: [patch 7/8] Add a bootparameter to reserve high linear address space.
From: Rusty Russell <hidden>
Date: 2006-08-05 23:17:33
Also in:
lkml, xen-devel
On Sat, 2006-08-05 at 14:58 -0700, Andrew Morton wrote:
On Thu, 03 Aug 2006 01:58:32 -0700 Zachary Amsden [off-list ref] wrote:quoted
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:
quoted hunk ↗ jump to hunk
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