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Date: Sun, 07 Sep 2008 15:21:19 -0700 From: Jeremy Fitzhardinge <jeremy@...p.org> To: Ingo Molnar <mingo@...e.hu> Cc: linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>, Xen Devel <xen-devel@...ts.xensource.com>, Andi Kleen <andi@...stfloor.org> Subject: [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@...rix.com> --- 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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