From patchwork Thu Nov 28 14:06:57 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 3254441 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 42F0B9F3A0 for ; Thu, 28 Nov 2013 14:07:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 966F220650 for ; Thu, 28 Nov 2013 14:07:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C0FF520532 for ; Thu, 28 Nov 2013 14:07:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759035Ab3K1OHf (ORCPT ); Thu, 28 Nov 2013 09:07:35 -0500 Received: from e06smtp11.uk.ibm.com ([195.75.94.107]:37494 "EHLO e06smtp11.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758986Ab3K1OHS (ORCPT ); Thu, 28 Nov 2013 09:07:18 -0500 Received: from /spool/local by e06smtp11.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Thu, 28 Nov 2013 14:07:14 -0000 Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by d06dlp02.portsmouth.uk.ibm.com (Postfix) with ESMTP id A03EF219006D; Thu, 28 Nov 2013 14:07:13 +0000 (GMT) Received: from d06av10.portsmouth.uk.ibm.com (d06av10.portsmouth.uk.ibm.com [9.149.37.251]) by b06cxnps4075.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id rASE71AO55509180; Thu, 28 Nov 2013 14:07:01 GMT Received: from d06av10.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av10.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id rASE7DsG003060; Thu, 28 Nov 2013 07:07:13 -0700 Received: from gondolin.boeblingen.de.ibm.com (dyn-9-152-224-196.boeblingen.de.ibm.com [9.152.224.196]) by d06av10.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id rASE74sw002580; Thu, 28 Nov 2013 07:07:12 -0700 From: Cornelia Huck To: Gleb Natapov , Paolo Bonzini Cc: Christian Borntraeger , kvm@vger.kernel.org, linux-s390@vger.kernel.org, Thomas Huth , Cornelia Huck Subject: [PULL 8/9] KVM: s390: Add SIGP store-status-at-address order Date: Thu, 28 Nov 2013 15:06:57 +0100 Message-Id: <1385647618-15541-9-git-send-email-cornelia.huck@de.ibm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1385647618-15541-1-git-send-email-cornelia.huck@de.ibm.com> References: <1385647618-15541-1-git-send-email-cornelia.huck@de.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13112814-5024-0000-0000-000007F8B80D Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Thomas Huth The STORE STATUS AT ADDRESS order of SIGP was still missing. Now it is supported, using the common kvm_s390_store_status() function. Signed-off-by: Thomas Huth Reviewed-by: Cornelia Huck Signed-off-by: Cornelia Huck --- arch/s390/kvm/sigp.c | 35 +++++++++++++++++++++++++++++++++++ arch/s390/kvm/trace.h | 1 + 2 files changed, 36 insertions(+) diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index 6805601..c137ed3 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -275,6 +275,37 @@ out_fi: return rc; } +static int __sigp_store_status_at_addr(struct kvm_vcpu *vcpu, u16 cpu_id, + u32 addr, u64 *reg) +{ + struct kvm_vcpu *dst_vcpu = NULL; + int flags; + int rc; + + if (cpu_id < KVM_MAX_VCPUS) + dst_vcpu = kvm_get_vcpu(vcpu->kvm, cpu_id); + if (!dst_vcpu) + return SIGP_CC_NOT_OPERATIONAL; + + spin_lock_bh(&dst_vcpu->arch.local_int.lock); + flags = atomic_read(dst_vcpu->arch.local_int.cpuflags); + spin_unlock_bh(&dst_vcpu->arch.local_int.lock); + if (!(flags & CPUSTAT_STOPPED)) { + *reg &= 0xffffffff00000000UL; + *reg |= SIGP_STATUS_INCORRECT_STATE; + return SIGP_CC_STATUS_STORED; + } + + addr &= 0x7ffffe00; + rc = kvm_s390_store_status_unloaded(dst_vcpu, addr); + if (rc == -EFAULT) { + *reg &= 0xffffffff00000000UL; + *reg |= SIGP_STATUS_INVALID_PARAMETER; + rc = SIGP_CC_STATUS_STORED; + } + return rc; +} + static int __sigp_sense_running(struct kvm_vcpu *vcpu, u16 cpu_addr, u64 *reg) { @@ -379,6 +410,10 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu) rc = __sigp_stop(vcpu, cpu_addr, ACTION_STORE_ON_STOP | ACTION_STOP_ON_STOP); break; + case SIGP_STORE_STATUS_AT_ADDRESS: + rc = __sigp_store_status_at_addr(vcpu, cpu_addr, parameter, + &vcpu->run->s.regs.gprs[r1]); + break; case SIGP_SET_ARCHITECTURE: vcpu->stat.instruction_sigp_arch++; rc = __sigp_set_arch(vcpu, parameter); diff --git a/arch/s390/kvm/trace.h b/arch/s390/kvm/trace.h index 0c991c6..3db76b2 100644 --- a/arch/s390/kvm/trace.h +++ b/arch/s390/kvm/trace.h @@ -175,6 +175,7 @@ TRACE_EVENT(kvm_s390_intercept_validity, {SIGP_STOP_AND_STORE_STATUS, "stop and store status"}, \ {SIGP_SET_ARCHITECTURE, "set architecture"}, \ {SIGP_SET_PREFIX, "set prefix"}, \ + {SIGP_STORE_STATUS_AT_ADDRESS, "store status at addr"}, \ {SIGP_SENSE_RUNNING, "sense running"}, \ {SIGP_RESTART, "restart"}