From 49f5c9e98ab44700b58e23ca8c17e21850328da1 Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Wed, 12 Feb 2014 09:56:35 +0100 Subject: s390x/cpu: Use ioctl to reset state in the kernel 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 Acked-by: Cornelia Huck Signed-off-by: Christian Borntraeger --- target-s390x/cpu.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'target-s390x/cpu.c') 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() */ -- cgit v1.1