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[50.57.142.19]) by mx.google.com with ESMTPS id n1si11022873igy.8.2014.07.23.06.40.17 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Wed, 23 Jul 2014 06:40:17 -0700 (PDT) Received-SPF: none (google.com: xen-devel-bounces@lists.xen.org does not designate permitted sender hosts) client-ip=50.57.142.19; Received: from localhost ([127.0.0.1] helo=lists.xen.org) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1X9wkW-0002rr-Fx; Wed, 23 Jul 2014 13:38:28 +0000 Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1X9wkU-0002re-Qh for xen-devel@lists.xenproject.org; Wed, 23 Jul 2014 13:38:26 +0000 Received: from [85.158.139.211:64566] by server-5.bemta-5.messagelabs.com id 86/43-11546-2DABFC35; Wed, 23 Jul 2014 13:38:26 +0000 X-Env-Sender: Stefano.Stabellini@citrix.com X-Msg-Ref: server-2.tower-206.messagelabs.com!1406122704!17128405!1 X-Originating-IP: [66.165.176.63] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogNjYuMTY1LjE3Ni42MyA9PiAzMDYwNDg=\n X-StarScan-Received: X-StarScan-Version: 6.11.3; banners=-,-,- X-VirusChecked: Checked Received: (qmail 6057 invoked from network); 23 Jul 2014 13:38:25 -0000 Received: from smtp02.citrix.com (HELO SMTP02.CITRIX.COM) (66.165.176.63) by server-2.tower-206.messagelabs.com with RC4-SHA encrypted SMTP; 23 Jul 2014 13:38:25 -0000 X-IronPort-AV: E=Sophos;i="5.01,717,1400025600"; d="scan'208";a="155401373" Received: from accessns.citrite.net (HELO FTLPEX01CL03.citrite.net) ([10.9.154.239]) by FTLPIPO02.CITRIX.COM with ESMTP; 23 Jul 2014 13:38:23 +0000 Received: from ukmail1.uk.xensource.com (10.80.16.128) by smtprelay.citrix.com (10.13.107.80) with Microsoft SMTP Server id 14.3.181.6; Wed, 23 Jul 2014 09:38:23 -0400 Received: from kaball.uk.xensource.com ([10.80.2.59]) by ukmail1.uk.xensource.com with esmtp (Exim 4.69) (envelope-from ) id 1X9wkR-00042c-7h; Wed, 23 Jul 2014 14:38:23 +0100 From: Stefano Stabellini To: Date: Wed, 23 Jul 2014 14:37:23 +0100 Message-ID: <1406122643-12028-2-git-send-email-stefano.stabellini@eu.citrix.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-DLP: MIA2 Cc: pranavkumar@linaro.org, julien.grall@linaro.org, Ian.Campbell@citrix.com, anup.patel@linaro.org, stefano.stabellini@eu.citrix.com Subject: [Xen-devel] [PATCH v2 2/2] xen/arm: call vcpu_yield on WFE trap X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Post: , List-Help: , List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: stefano.stabellini@eu.citrix.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.220.173 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Archive: No need to call vcpu_force_reschedule, is too expensive. Signed-off-by: Stefano Stabellini --- xen/arch/arm/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c index 3dfabd0..76a9586 100644 --- a/xen/arch/arm/traps.c +++ b/xen/arch/arm/traps.c @@ -1805,7 +1805,7 @@ asmlinkage void do_trap_hypervisor(struct cpu_user_regs *regs) } if ( hsr.wfi_wfe.ti ) { /* Yield the VCPU for WFE */ - vcpu_force_reschedule(current); + vcpu_yield(); } else { /* Block the VCPU for WFI */ vcpu_block_unless_event_pending(current);