[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 7 of 7] 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 <jeremy.fitzhardinge@xxxxxxxxxx> --- 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 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -126,9 +126,6 @@ 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); _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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