From 9e85100566273345792a16aff95361042e6eafc1 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Thu, 16 Jul 2015 10:24:07 +0200 Subject: [PATCH] KVM: s390: add more debug data for the pfault diagnoses We're not only interested in the address of the control block, but also in the requested subcommand and for the token subcommand, in the specified token address and masks. Suggested-by: Cornelia Huck Signed-off-by: Christian Borntraeger Reviewed-by: Cornelia Huck Reviewed-by: David Hildenbrand --- arch/s390/kvm/diag.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c index 18717547e3aeb..5fbfb88f84773 100644 --- a/arch/s390/kvm/diag.c +++ b/arch/s390/kvm/diag.c @@ -88,6 +88,9 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu) switch (parm.subcode) { case 0: /* TOKEN */ + VCPU_EVENT(vcpu, 3, "pageref token addr 0x%llx " + "select mask 0x%llx compare mask 0x%llx", + parm.token_addr, parm.select_mask, parm.compare_mask); if (vcpu->arch.pfault_token != KVM_S390_PFAULT_TOKEN_INVALID) { /* * If the pagefault handshake is already activated, @@ -117,6 +120,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu) * the cancel, therefore to reduce code complexity, we assume * all outstanding tokens are already pending. */ + VCPU_EVENT(vcpu, 3, "pageref cancel addr 0x%llx", parm.token_addr); if (parm.token_addr || parm.select_mask || parm.compare_mask || parm.zarch) return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION); -- 2.39.5