* [Qemu-devel] [PATCH] Halt/restart support for MIPS
@ 2006-02-21 19:35 Thiemo Seufer
0 siblings, 0 replies; only message in thread
From: Thiemo Seufer @ 2006-02-21 19:35 UTC (permalink / raw)
To: qemu-devel
Hello All,
This adds halt/restart support via a magic page. There is no real
standard way to do this for MIPS systems, a patch for the MIPS Qemu
kernels to add this support was also proposed.
Thiemo
Index: qemu-work/target-mips/helper.c
===================================================================
--- qemu-work.orig/target-mips/helper.c 2006-02-21 16:45:41.000000000 +0000
+++ qemu-work/target-mips/helper.c 2006-02-21 16:46:37.000000000 +0000
@@ -103,6 +103,19 @@
*prot = PAGE_READ | PAGE_WRITE;
} else if (address < 0xC0000000UL) {
/* kseg1 */
+#ifndef CONFIG_USER_ONLY
+ /* Check magic system control page. */
+ switch (address) {
+ case 0xBFBF0000: /* restart */
+ qemu_system_reset_request();
+ break;
+ case 0xBFBF0004: /* halt */
+ qemu_system_shutdown_request();
+ break;
+ default:
+ break;
+ }
+#endif
/* XXX: check supervisor mode */
*physical = address - 0xA0000000UL;
*prot = PAGE_READ | PAGE_WRITE;
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2006-02-21 19:35 [Qemu-devel] [PATCH] Halt/restart support for MIPS Thiemo Seufer
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