From patchwork Thu Oct 25 14:45:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Emilio Cota X-Patchwork-Id: 10656043 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2E37C13A9 for ; Thu, 25 Oct 2018 15:31:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1A6402BDF9 for ; Thu, 25 Oct 2018 15:31:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 187F32BDFB; Thu, 25 Oct 2018 15:31:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 715382BDF9 for ; Thu, 25 Oct 2018 15:31:36 +0000 (UTC) Received: from localhost ([::1]:55184 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gFhbi-0002VC-9H for patchwork-qemu-devel@patchwork.kernel.org; Thu, 25 Oct 2018 11:31:35 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60234) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gFh5N-00045Y-3B for qemu-devel@nongnu.org; Thu, 25 Oct 2018 10:58:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gFgvF-0008CZ-07 for qemu-devel@nongnu.org; Thu, 25 Oct 2018 10:47:43 -0400 Received: from out3-smtp.messagingengine.com ([66.111.4.27]:41211) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gFgvE-0007q8-I5; Thu, 25 Oct 2018 10:47:40 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 9C79D21F4C; Thu, 25 Oct 2018 10:46:51 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Thu, 25 Oct 2018 10:46:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=braap.org; h= from:to:cc:subject:date:message-id:in-reply-to:references; s= mesmtp; bh=eBsernVOp/uBRuwqc4jJcY5L+6lj0NdgKMAzV0I9zC8=; b=jbTjq 12CvC7EucOEQsE9AsAy4mLXtC1cwPeDLUKypM0cgRAgBDfR8QTXs/9Un88dzm0hw BpPQkjeUgM5IRftzEe7uUw9xivUGPYpSsPBf8hYy1zsC5KQvCO81FhpEihO1LlAW hF2J1t+J0ER/dMUwry7KmrgsbtdKbKj1ifx2pE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:date:from:in-reply-to:message-id :references:subject:to:x-me-proxy:x-me-proxy:x-me-sender :x-me-sender:x-sasl-enc; s=fm1; bh=eBsernVOp/uBRuwqc4jJcY5L+6lj0 NdgKMAzV0I9zC8=; b=QBWhjKBRYvCHO30hoLkh9OEO3t68myTl2ELFSeJwCA4HB UoOXI/Ge9LDYZqb2F4O0zgiIs13lM1tW5O7c58zDz8DoeXVZ7ZqnVQ9BRvie6so5 zDv2DvlmZ9FxFRaaeTeI50HPy5ly+g8tbjg+2qCnjhfH83VPDCqWOjzhkqc4XOSk mfRxPpn7PxjAamcjixKNggll/z13ow18ubEZII6BBH7NQAL47UeaBASH8lhdHq+g 4ofHxRkBLnF7FN1XnPfwcPb0Eu5Joy9fwEvuRkClS+uj8XRWOztabOBSY5/z2+Wt RSbJYner0DQUw3WIA3chPc2mTHzNnPlyMXvitzvUg== X-ME-Sender: X-ME-Proxy: Received: from localhost (flamenco.cs.columbia.edu [128.59.20.216]) by mail.messagingengine.com (Postfix) with ESMTPA id 2190BE44D4; Thu, 25 Oct 2018 10:46:51 -0400 (EDT) From: "Emilio G. Cota" To: qemu-devel@nongnu.org Date: Thu, 25 Oct 2018 10:45:57 -0400 Message-Id: <20181025144644.15464-24-cota@braap.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181025144644.15464-1-cota@braap.org> References: <20181025144644.15464-1-cota@braap.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 66.111.4.27 Subject: [Qemu-devel] [RFC v4 24/71] s390x: convert to cpu_halted X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Hildenbrand , Cornelia Huck , Richard Henderson , Alexander Graf , Christian Borntraeger , qemu-s390x@nongnu.org, Paolo Bonzini Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Cc: Cornelia Huck Cc: Christian Borntraeger Cc: Alexander Graf Cc: David Hildenbrand Cc: qemu-s390x@nongnu.org Reviewed-by: Richard Henderson Signed-off-by: Emilio G. Cota Reviewed-by: Alex Bennée --- hw/intc/s390_flic.c | 2 +- target/s390x/cpu.c | 18 +++++++++++------- target/s390x/excp_helper.c | 2 +- target/s390x/kvm.c | 2 +- target/s390x/sigp.c | 8 ++++---- 5 files changed, 18 insertions(+), 14 deletions(-) diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index 5f8168f0f0..bfb5cf1d07 100644 --- a/hw/intc/s390_flic.c +++ b/hw/intc/s390_flic.c @@ -198,7 +198,7 @@ static void qemu_s390_flic_notify(uint32_t type) } /* we always kick running CPUs for now, this is tricky */ - if (cs->halted) { + if (cpu_halted(cs)) { /* don't check for subclasses, CPUs double check when waking up */ if (type & FLIC_PENDING_SERVICE) { if (!(cpu->env.psw.mask & PSW_MASK_EXT)) { diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 18ba7f85a5..956d4e1d18 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -288,7 +288,7 @@ static void s390_cpu_initfn(Object *obj) CPUS390XState *env = &cpu->env; cs->env_ptr = env; - cs->halted = 1; + cpu_halted_set(cs, 1); cs->exception_index = EXCP_HLT; object_property_add(obj, "crash-information", "GuestPanicInformation", s390_cpu_get_crash_info_qom, NULL, NULL, NULL, NULL); @@ -313,8 +313,8 @@ static void s390_cpu_finalize(Object *obj) #if !defined(CONFIG_USER_ONLY) static bool disabled_wait(CPUState *cpu) { - return cpu->halted && !(S390_CPU(cpu)->env.psw.mask & - (PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK)); + return cpu_halted(cpu) && !(S390_CPU(cpu)->env.psw.mask & + (PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK)); } static unsigned s390_count_running_cpus(void) @@ -340,10 +340,12 @@ unsigned int s390_cpu_halt(S390CPU *cpu) CPUState *cs = CPU(cpu); trace_cpu_halt(cs->cpu_index); - if (!cs->halted) { - cs->halted = 1; + cpu_mutex_lock(cs); + if (!cpu_halted(cs)) { + cpu_halted_set(cs, 1); cs->exception_index = EXCP_HLT; } + cpu_mutex_unlock(cs); return s390_count_running_cpus(); } @@ -353,10 +355,12 @@ void s390_cpu_unhalt(S390CPU *cpu) CPUState *cs = CPU(cpu); trace_cpu_unhalt(cs->cpu_index); - if (cs->halted) { - cs->halted = 0; + cpu_mutex_lock(cs); + if (cpu_halted(cs)) { + cpu_halted_set(cs, 0); cs->exception_index = -1; } + cpu_mutex_unlock(cs); } unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) diff --git a/target/s390x/excp_helper.c b/target/s390x/excp_helper.c index 2a33222f7e..d22c5b3ce5 100644 --- a/target/s390x/excp_helper.c +++ b/target/s390x/excp_helper.c @@ -461,7 +461,7 @@ try_deliver: if ((env->psw.mask & PSW_MASK_WAIT) || stopped) { /* don't trigger a cpu_loop_exit(), use an interrupt instead */ cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HALT); - } else if (cs->halted) { + } else if (cpu_halted(cs)) { /* unhalt if we had a WAIT PSW somehwere in our injection chain */ s390_cpu_unhalt(cpu); } diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index 2ebf26adfe..ffb52888c0 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -1005,7 +1005,7 @@ MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run) int kvm_arch_process_async_events(CPUState *cs) { - return cs->halted; + return cpu_halted(cs); } static int s390_kvm_irq_to_interrupt(struct kvm_s390_irq *irq, diff --git a/target/s390x/sigp.c b/target/s390x/sigp.c index c1f9245797..d410da797a 100644 --- a/target/s390x/sigp.c +++ b/target/s390x/sigp.c @@ -115,7 +115,7 @@ static void sigp_stop(CPUState *cs, run_on_cpu_data arg) } /* disabled wait - sleeping in user space */ - if (cs->halted) { + if (cpu_halted(cs)) { s390_cpu_set_state(S390_CPU_STATE_STOPPED, cpu); } else { /* execute the stop function */ @@ -131,7 +131,7 @@ static void sigp_stop_and_store_status(CPUState *cs, run_on_cpu_data arg) SigpInfo *si = arg.host_ptr; /* disabled wait - sleeping in user space */ - if (s390_cpu_get_state(cpu) == S390_CPU_STATE_OPERATING && cs->halted) { + if (s390_cpu_get_state(cpu) == S390_CPU_STATE_OPERATING && cpu_halted(cs)) { s390_cpu_set_state(S390_CPU_STATE_STOPPED, cpu); } @@ -313,7 +313,7 @@ static void sigp_cond_emergency(S390CPU *src_cpu, S390CPU *dst_cpu, } /* this looks racy, but these values are only used when STOPPED */ - idle = CPU(dst_cpu)->halted; + idle = cpu_halted(CPU(dst_cpu)); psw_addr = dst_cpu->env.psw.addr; psw_mask = dst_cpu->env.psw.mask; asn = si->param; @@ -347,7 +347,7 @@ static void sigp_sense_running(S390CPU *dst_cpu, SigpInfo *si) } /* If halted (which includes also STOPPED), it is not running */ - if (CPU(dst_cpu)->halted) { + if (cpu_halted(CPU(dst_cpu))) { si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; } else { set_sigp_status(si, SIGP_STAT_NOT_RUNNING);