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s390x: implement SIGP restart and shutdown 

An s390x OS does reboot and shutdown triggers through hypercalls that
we didn't implement on the TCG backend yet. That means that so far we
couldn't shut down virtual machines for example, having them hang on
shutdown when not using KVM.

With this patch, this restriction is gone. We can now shut down and
reboot s390x virtual machines even when using the TCG backend.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2011-07-14 11:52:08 +02:00
parent 17bb18ce16
commit 1864b94abb
1 changed files with 14 additions and 0 deletions
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14
target-s390x/op_helper.c
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@ -29,6 +29,10 @@
#include <linux/kvm.h>
#endif
#if !defined (CONFIG_USER_ONLY)
#include "sysemu.h"
#endif
/*****************************************************************************/
/* Softmmu support */
#if !defined (CONFIG_USER_ONLY)
@ -2901,6 +2905,16 @@ uint32_t HELPER(sigp)(uint64_t order_code, uint32_t r1, uint64_t cpu_addr)
env->regs[r1] &= 0xffffffff00000000ULL;
cc = 1;
break;
#if !defined (CONFIG_USER_ONLY)
case SIGP_RESTART:
qemu_system_reset_request();
cpu_loop_exit(env);
break;
case SIGP_STOP:
qemu_system_shutdown_request();
cpu_loop_exit(env);
break;
#endif
default:
/* unknown sigp */
fprintf(stderr, "XXX unknown sigp: 0x%" PRIx64 "\n", order_code);