Re: [patch] Fix GDT re-load on ACPI resume

[Nickolai Zeldovich]

On Mon, 15 Nov 2004, Maciej W. Rozycki wrote:

>  You should use "lgdtl" and let gas figure out the rest.

Thanks for the pointer; here's an updated patch.

-- kolya

--- linux-2.6.9/arch/i386/kernel/acpi/wakeup.S	2004/11/15 09:00:34	1.1
+++ linux-2.6.9/arch/i386/kernel/acpi/wakeup.S	2004/11/15 23:50:38
@@ -66,8 +66,9 @@
 	movw	%ax,%fs
 	movw	$0x0e00 + 'i', %fs:(0x12)

-	# need a gdt
-	lgdt	real_save_gdt - wakeup_code
+	# need a gdt -- use lgdtl to force 32-bit operands, in case
+	# the GDT is located past 16 megabytes.
+	lgdtl	real_save_gdt - wakeup_code

 	movl	real_save_cr0 - wakeup_code, %eax
 	movl	%eax, %cr0
-
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