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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-05-26 23:31:19 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-27 10:11:37 +0200 |
| commit | 8006ec3e911f93d702e1d4a4e387e244ab434924 (patch) | |
| tree | 87c4a8648ff2f559ce039bf606fa40e033c48b3c /arch/x86/xen/setup.c | |
| parent | d451bb7aa852627bdf7be7937dc3d9d9f261b235 (diff) | |
| download | op-kernel-dev-8006ec3e911f93d702e1d4a4e387e244ab434924.zip op-kernel-dev-8006ec3e911f93d702e1d4a4e387e244ab434924.tar.gz | |
xen: add configurable max domain size
Add a config option to set the max size of a Xen domain. This is used
to scale the size of the physical-to-machine array; it ends up using
around 1 page/GByte, so there's no reason to be very restrictive.
For a 32-bit guest, the default value of 8GB is probably sufficient;
there's not much point in giving a 32-bit machine much more memory
than that.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/xen/setup.c')
| -rw-r--r-- | arch/x86/xen/setup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 37f8f0b..4884478 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -16,6 +16,7 @@ #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> +#include <xen/page.h> #include <xen/interface/callback.h> #include <xen/interface/physdev.h> #include <xen/features.h> @@ -36,6 +37,8 @@ char * __init xen_memory_setup(void) { unsigned long max_pfn = xen_start_info->nr_pages; + max_pfn = min(MAX_DOMAIN_PAGES, max_pfn); + e820.nr_map = 0; add_memory_region(0, LOWMEMSIZE(), E820_RAM); add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM); |
