From eecb9a697f0b790e5840dae8a8b866bea49a86ee Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Sat, 7 Feb 2009 15:39:38 -0800 Subject: [PATCH] x86: always explicitly map acpi memory Always map acpi tables, rather than assuming we can use the normal linear mapping to access the acpi tables. This is necessary in a virtual environment where the linear mappings are to pseudo-physical memory, but the acpi tables exist at a real physical address. It doesn't hurt to map in the normal non-virtual case, so just do it unconditionally. Signed-off-by: Jeremy Fitzhardinge Acked-by: Len Brown Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/boot.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index c518599e4264..5424a18f2e4e 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -127,9 +127,6 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size) if (!phys || !size) return NULL; - if (phys+size <= (max_low_pfn_mapped << PAGE_SHIFT)) - return __va(phys); - if (prev_map) early_iounmap(prev_map, prev_size); -- 2.30.2