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[Qemu-devel] [PULL 18/22] s390x/cpu: Use ioctl to reset state in the ker
From: |
Christian Borntraeger |
Subject: |
[Qemu-devel] [PULL 18/22] s390x/cpu: Use ioctl to reset state in the kernel |
Date: |
Fri, 28 Feb 2014 10:31:02 +0100 |
From: Thomas Huth <address@hidden>
Some of the state in the kernel can not be reset from QEMU yet.
For this we've got to use the KVM_S390_INITIAL_RESET ioctl to make
sure that the state in the kernel is set to the right values during
initial CPU reset, too.
Signed-off-by: Thomas Huth <address@hidden>
Acked-by: Cornelia Huck <address@hidden>
Signed-off-by: Christian Borntraeger <address@hidden>
---
target-s390x/cpu.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index f1319e5..1a8c1cc 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -108,6 +108,15 @@ static void s390_cpu_initial_reset(CPUState *s)
env->cregs[14] = CR14_RESET;
env->pfault_token = -1UL;
+
+#if defined(CONFIG_KVM)
+ /* Reset state inside the kernel that we cannot access yet from QEMU. */
+ if (kvm_enabled()) {
+ if (kvm_vcpu_ioctl(s, KVM_S390_INITIAL_RESET, NULL)) {
+ perror("Initial CPU reset failed");
+ }
+ }
+#endif
}
/* CPUClass:reset() */
--
1.8.4.2
- [Qemu-devel] [PULL 12/22] s390x/event-facility: code restructure, (continued)
- [Qemu-devel] [PULL 12/22] s390x/event-facility: code restructure, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 16/22] s390-ccw.img: Fix sporadic errors with ccw boot image - initialize css, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 20/22] s390x/kvm: Add missing SIGP CPU RESET order, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 02/22] s390x/kvm: implement floating-interrupt controller device, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 07/22] s390x/eventfacility: mask out commands, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 21/22] s390x/kvm: Rework priv instruction handlers, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 14/22] s390x/event-facility: exploit realize/unrealize, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 19/22] s390x/kvm: Rework SIGP INITIAL CPU RESET handler, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 04/22] s390x/kvm: Fixed bad SIGP SET-ARCHITECTURE handler, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 13/22] s390x/event-facility: add support for live migration, Christian Borntraeger, 2014/02/28
- [Qemu-devel] [PULL 18/22] s390x/cpu: Use ioctl to reset state in the kernel,
Christian Borntraeger <=
- [Qemu-devel] [PULL 22/22] s390x/ipl: Fix crash of ELF images with arbitrary entry points, Christian Borntraeger, 2014/02/28