diff options
| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-06-16 14:54:49 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 12:48:29 +0200 |
| commit | b792c755907cffceab393585b626ef2553c38538 (patch) | |
| tree | 217524706bd543ecb35c43c388bddd282bf436b0 | |
| parent | be5bf9fa1c327fa6fd6e7ba44665437dd558dfe3 (diff) | |
xen: reserve ISA space in e820 map
[ TODO: release the underlying memory back to Xen. ]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: the arch/x86 maintainers <x86@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/xen/setup.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index dc2ca8ad3603..e0a39595bde3 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -13,6 +13,7 @@ #include <asm/vdso.h> #include <asm/e820.h> #include <asm/setup.h> +#include <asm/acpi.h> #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> @@ -41,8 +42,15 @@ char * __init xen_memory_setup(void) e820.nr_map = 0; - e820_add_region(0, LOWMEMSIZE(), E820_RAM); - e820_add_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM); + e820_add_region(0, PFN_PHYS(max_pfn), E820_RAM); + + /* + * Even though this is normal, usable memory under Xen, reserve + * ISA memory anyway because too many things think they can poke + * about in there. + */ + e820_add_region(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, + E820_RESERVED); /* * Reserve Xen bits: |