From 71db35d26dbacd3d165522022ecb757ddc1529ea Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Fri, 10 Jul 2015 15:27:20 +0200 Subject: [PATCH] KVM: s390: VCPU_EVENT cleanup for prefix changes SPX (SET PREFIX) and SIGP (Set prefix) can change the prefix register of a CPU. As sigp set prefix may be handled in user space (KVM_CAP_S390_USER_SIGP), we would not log the changes triggered via SIGP in that case. Let's have just one VCPU_EVENT at the central location that tracks prefix changes. Signed-off-by: Christian Borntraeger Reviewed-by: Cornelia Huck Reviewed-by: David Hildenbrand --- arch/s390/kvm/interrupt.c | 1 - arch/s390/kvm/kvm-s390.h | 2 ++ arch/s390/kvm/priv.c | 2 -- arch/s390/kvm/sigp.c | 3 --- 4 files changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index c98d89708e99..8b3a1178cb0b 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -427,7 +427,6 @@ static int __must_check __deliver_set_prefix(struct kvm_vcpu *vcpu) clear_bit(IRQ_PEND_SET_PREFIX, &li->pending_irqs); spin_unlock(&li->lock); - VCPU_EVENT(vcpu, 4, "interrupt: set prefix to %x", prefix.address); vcpu->stat.deliver_prefix_signal++; trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, KVM_S390_SIGP_SET_PREFIX, diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 81de2af28c9c..0ee5db11598b 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -65,6 +65,8 @@ static inline u32 kvm_s390_get_prefix(struct kvm_vcpu *vcpu) static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix) { + VCPU_EVENT(vcpu, 3, "set prefix of cpu %03u to 0x%x", vcpu->vcpu_id, + prefix); vcpu->arch.sie_block->prefix = prefix >> GUEST_PREFIX_SHIFT; kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu); kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu); diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 1b95d2934472..2658a7919c5e 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -98,8 +98,6 @@ static int handle_set_prefix(struct kvm_vcpu *vcpu) return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); kvm_s390_set_prefix(vcpu, address); - - VCPU_EVENT(vcpu, 5, "setting prefix to %x", address); trace_kvm_s390_handle_prefix(vcpu, 1, address); return 0; } diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index 72e58bd2bee7..5318ea3ad1d3 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -205,9 +205,6 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu, *reg &= 0xffffffff00000000UL; *reg |= SIGP_STATUS_INCORRECT_STATE; return SIGP_CC_STATUS_STORED; - } else if (rc == 0) { - VCPU_EVENT(vcpu, 4, "set prefix of cpu %02x to %x", - dst_vcpu->vcpu_id, irq.u.prefix.address); } return rc; -- GitLab