PERFORCE change 28567 for review

[Peter Wemm]

http://perforce.freebsd.org/chv.cgi?CH=28567

Change 28567 by peter at peter_daintree on 2003/04/08 15:34:13

	remove damn noisy printf in setidt().
	remove tss_rsp1/rsp2 - we dont use ring 1 or 2 anywhere (neither on i386)
	add comment about missing an update of tss_rsp0 in cpu_switch()

Affected files ...

.. //depot/projects/hammer/sys/x86_64/x86_64/machdep.c#55 edit

Differences ...

==== //depot/projects/hammer/sys/x86_64/x86_64/machdep.c#55 (text+ko) ====

@@ -630,7 +630,6 @@
 	ip->gd_dpl = SEL_KPL;
 	ip->gd_p = 1;
 	ip->gd_hioffset = ((uintptr_t)func)>>16 ;
-printf("setidt: idx:%2d 0x%08x 0x%08x 0x%08x 0x%08x\n", idx, ((u_int32_t *)ip)[0], ((u_int32_t *)ip)[1], ((u_int32_t *)ip)[2], ((u_int32_t *)ip)[3]);
 }
 
 #define	IDTVEC(name)	__CONCAT(X,name)
@@ -1240,8 +1239,7 @@
 
 	/* make an initial tss so cpu can get interrupt stack on syscall! */
 	common_tss.tss.tss_rsp0 = thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE - sizeof(struct pcb);
-	common_tss.tss.tss_rsp1 = common_tss.tss.tss_rsp0;
-	common_tss.tss.tss_rsp2 = common_tss.tss.tss_rsp0;
+	/* XXX we need to update tss_rsp0 in cpu_switch */
 	/* doublefault stack space, runs on ist1 */
 	common_tss.tss.tss_ist1 = (long)&dblfault_stack[sizeof(dblfault_stack)];