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[Qemu-devel] [PATCH 10/13] s390x: Add shutdown for TCG s390-virtio machi
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 10/13] s390x: Add shutdown for TCG s390-virtio machine |
Date: |
Sun, 13 Nov 2011 16:33:51 +0100 |
Now that we have code in place to do refcounting of online CPUs, we
can drag the TCG code along and implement shutdown for that one too,
so it doesn't feel left out by its KVM counterpart.
Signed-off-by: Alexander Graf <address@hidden>
---
target-s390x/cpu.h | 9 +++++++++
target-s390x/helper.c | 15 ++++++++++++---
2 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index a66aa01..202c098 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -315,6 +315,15 @@ unsigned s390_del_running_cpu(CPUState *env);
/* from s390-virtio-bus */
extern const target_phys_addr_t virtio_size;
+#else
+static inline void s390_add_running_cpu(CPUState *env)
+{
+}
+
+static inline unsigned s390_del_running_cpu(CPUState *env)
+{
+ return 0;
+}
#endif
void cpu_lock(void);
void cpu_unlock(void);
diff --git a/target-s390x/helper.c b/target-s390x/helper.c
index 4145104..10cc9dd 100644
--- a/target-s390x/helper.c
+++ b/target-s390x/helper.c
@@ -26,6 +26,9 @@
#include "gdbstub.h"
#include "qemu-common.h"
#include "qemu-timer.h"
+#ifndef CONFIG_USER_ONLY
+#include "sysemu.h"
+#endif
//#define DEBUG_S390
//#define DEBUG_S390_PTE
@@ -131,6 +134,7 @@ void cpu_reset(CPUS390XState *env)
memset(env, 0, offsetof(CPUS390XState, breakpoints));
/* FIXME: reset vector? */
tlb_flush(env, 1);
+ s390_add_running_cpu(env);
}
#ifndef CONFIG_USER_ONLY
@@ -466,11 +470,15 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUState *env,
target_ulong vaddr)
void load_psw(CPUState *env, uint64_t mask, uint64_t addr)
{
if (mask & PSW_MASK_WAIT) {
- env->halted = 1;
- env->exception_index = EXCP_HLT;
if (!(mask & (PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK))) {
- /* XXX disabled wait state - CPU is dead */
+ if (s390_del_running_cpu(env) == 0) {
+#ifndef CONFIG_USER_ONLY
+ qemu_system_shutdown_request();
+#endif
+ }
}
+ env->halted = 1;
+ env->exception_index = EXCP_HLT;
}
env->psw.addr = addr;
@@ -599,6 +607,7 @@ void do_interrupt (CPUState *env)
qemu_log("%s: %d at pc=%" PRIx64 "\n", __FUNCTION__, env->exception_index,
env->psw.addr);
+ s390_add_running_cpu(env);
/* handle external interrupts */
if ((env->psw.mask & PSW_MASK_EXT) &&
env->exception_index == -1) {
--
1.6.0.2
- [Qemu-devel] [PATCH 09/13] s390: Fix cpu shutdown for KVM, (continued)
- [Qemu-devel] [PATCH 09/13] s390: Fix cpu shutdown for KVM, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 02/13] s390x: add ldeb instruction, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 03/13] s390x: make ipte 31-bit aware, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 01/13] [S390] Add hotplug support, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 11/13] tcg: Standardize on TCGReg as the enum for hard registers, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 07/13] s390: fix reset hypercall to reset the status, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 08/13] s390: fix short kernel command lines, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 05/13] s390x: implement rrbe instruction properly, Alexander Graf, 2011/11/13
- [Qemu-devel] [PATCH 10/13] s390x: Add shutdown for TCG s390-virtio machine,
Alexander Graf <=