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From: Peter Wemm <peter@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Subject: PERFORCE change 42576 for review
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http://perforce.freebsd.org/chv.cgi?CH=42576

Change 42576 by peter@peter_overcee on 2003/11/16 13:40:07

	update the tss_rsp0 and pc_rsp0.  the more expensive form should
	be #ifdef SMP

Affected files ...

.. //depot/projects/hammer/sys/amd64/amd64/cpu_switch.S#11 edit

Differences ...

==== //depot/projects/hammer/sys/amd64/amd64/cpu_switch.S#11 (text+ko) ====

@@ -201,8 +201,11 @@
 	wrmsr
 
 	/* Update the TSS_RSP0 pointer for the next interrupt */
+	movq	PCPU(TSSP), %rax
+	addq	$COMMON_TSS_RSP0, %rax
 	leaq	-16(%r8), %rbx
-	movq	%rbx, common_tss + COMMON_TSS_RSP0
+	movq	%rbx, (%rax)
+	movq	%rbx, PCPU(RSP0)
 
 	/* Restore context. */
 	movq	PCB_RBX(%r8),%rbx