Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ab7090a6 authored by Christian Borntraeger's avatar Christian Borntraeger
Browse files

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: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
parent ed2afcfa

arch/s390/kvm/diag.c

+4 −0
Original line number Diff line number Diff line
@@ -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);